R&D Tax Relief for Danish Businesses in 2026

Overview of R&D Tax Relief in Denmark for 2026

Research and development (R&D) tax relief in Denmark is a set of targeted incentives in the Danish tax system designed to reduce the effective cost of innovation for businesses. The scheme allows companies to deduct qualifying R&D expenses at an enhanced rate and, for loss-making businesses, to convert part of these tax benefits into a cash refund. The aim is to make it more attractive for Danish and foreign-owned companies to place their development activities in Denmark and to scale innovative projects faster.

Under the current rules, Danish companies can claim an additional tax deduction of up to 130% of eligible R&D salary costs. This means that for every DKK 100 spent on qualifying R&D wages, DKK 130 can be deducted from taxable income, subject to specific caps and conditions. The corporate income tax rate in Denmark is 22%, so the enhanced deduction directly reduces the tax base and therefore the final tax bill.

For companies that are not yet profitable, the system also offers the possibility to obtain a cash refund of part of the tax value of R&D-related losses. The refund is calculated on the basis of the 22% corporate tax rate and is subject to an annual ceiling on the amount that can be paid out. This mechanism is particularly relevant for start-ups and scale-ups that invest heavily in development long before they generate positive taxable income.

R&D tax relief in Denmark is available across most sectors, provided that the activities meet the definition of research or development under Danish tax law. In practice, this typically covers projects that aim to create new or significantly improved products, services, processes, technologies, or software, and that involve a systematic approach to overcoming scientific or technological uncertainty.

The incentives are administered through the ordinary corporate tax return, with the Danish Tax Agency (Skattestyrelsen) responsible for assessing whether the claimed costs qualify as R&D. Companies must be able to document their projects, costs, and allocation of staff time in sufficient detail to support their claims in the event of a review or audit.

In the current framework, the key elements of Danish R&D tax relief include:

• Enhanced tax deduction for qualifying R&D salary expenses, up to a defined percentage above the actual cost
• Possibility of cash refunds for loss-making companies, calculated on the tax value of eligible R&D-related losses
• Integration of R&D incentives into the standard corporate tax return, without a separate stand-alone regime
• Specific documentation and substantiation requirements for projects and costs

For businesses planning their innovation strategy, understanding how these mechanisms work in practice is essential. Properly identifying qualifying activities, tracking eligible costs, and aligning internal documentation with the expectations of the Danish Tax Agency can significantly increase the value of the relief and reduce the risk of disputes later on.

As the Danish government continues to position the country as an attractive hub for high-tech and knowledge-intensive industries, R&D tax relief remains a central tool in the broader innovation policy. Companies that actively monitor the rules, thresholds, and administrative practice can better integrate these incentives into their financial planning and long-term R&D roadmap.

Why R&D Tax Credits Matter for Your Business

Research and development tax relief is one of the most powerful tools available to Danish businesses that invest in innovation. By reducing your corporate tax bill or providing a cash refund, R&D tax credits improve liquidity, lower the real cost of development projects and help you reinvest more confidently in new products, services and technologies.

In Denmark, companies can obtain a tax value of up to 22% of eligible R&D costs through the R&D tax credit scheme. Instead of waiting to benefit from deductions over several years, you can convert qualifying R&D expenses into a tax credit and, if you are in a loss-making position, receive a cash refund from the tax authorities. This is particularly important for start-ups and scale-ups that often have high development costs and limited revenue in the early years.

R&D tax relief also improves the internal business case for innovation. When you know that a significant share of your salary costs, subcontractor expenses and other qualifying R&D expenditures can be supported by a tax credit, projects that looked marginal can become financially viable. This can make the difference between postponing a development initiative and moving ahead with it now.

Another key benefit is risk management. R&D projects are by nature uncertain, and not every idea will reach the market. The Danish R&D tax incentive effectively shares part of that risk with the state by reducing the net cost of failed or incomplete projects, as long as they meet the technical and scientific criteria. This allows management teams to take a more long-term, experimental approach without putting excessive pressure on cash flow.

For established companies, R&D tax credits can support strategic transformation. Whether you are digitalising internal processes, developing greener production methods or upgrading existing products, many of these activities may qualify as R&D. The resulting tax relief can free up capital for further investments, acquisitions or international expansion, while keeping your effective tax rate under control.

R&D tax relief is also a competitive factor in attracting investors and talent. Investors increasingly look for companies that systematically leverage available incentives to extend their runway and improve returns. At the same time, being able to fund more ambitious development projects helps you offer challenging roles to engineers, developers and researchers, strengthening your employer brand in Denmark’s innovation ecosystem.

Finally, using R&D tax credits correctly supports compliance and transparency. A well-documented R&D tax position, aligned with current Danish rules and guidance from the tax authorities, reduces the risk of disputes and adjustments in later years. Clear internal processes for identifying, documenting and claiming R&D costs ensure that your business benefits fully from the incentive while maintaining a robust tax governance framework.

What Activities Qualify for R&D Tax Incentives

Not every innovative idea qualifies for R&D tax incentives in Denmark. To be eligible, your activities must go beyond routine operations and aim to create new knowledge, products, processes, or services, or to significantly improve existing ones. The work should involve a level of technical or scientific uncertainty that cannot be solved using readily available knowledge or standard solutions.

In practice, qualifying R&D activities in Denmark typically fall into two broad categories: fundamental or applied research and experimental development. Research focuses on generating new knowledge or understanding, while experimental development uses that knowledge to design or improve products, processes, systems, or services.

Typical examples of qualifying R&D activities

While each project must be assessed on its own merits, the following types of work are commonly accepted as R&D for Danish tax purposes when they are systematic, documented and aimed at resolving technical or scientific uncertainties:

• Product development and innovation – designing and testing new products or significantly improved versions of existing products, including prototypes and pilot models, where the outcome or performance cannot be predicted in advance.
• Process and production optimisation – developing new or substantially improved manufacturing methods, production lines, automation solutions or quality-control systems that require technical experimentation and problem-solving.
• Software and IT development – creating new software architectures, algorithms, platforms or infrastructure solutions, or significantly enhancing existing systems, when this involves overcoming technical limitations (for example, scalability, performance, security, data processing or integration challenges that cannot be solved with standard tools).
• Engineering and technical design – developing new technical concepts, materials, components or system designs, including simulations, modelling and stress testing, where the behaviour or feasibility is uncertain at the outset.
• Experimental testing and validation – systematic testing, trials and iterations carried out to validate new concepts, prototypes or processes, including laboratory tests, field trials and pilot production runs.
• Scientific research – projects in natural sciences, engineering, life sciences, environmental sciences or similar fields that aim to generate new knowledge or methods, often in collaboration with universities or research institutions.
• Green and sustainable innovation – development of new technologies or solutions that reduce energy consumption, emissions, waste or environmental impact, where the technical performance or feasibility is uncertain and must be proven through experimentation.

Activities that usually do not qualify

For Danish R&D tax incentives, it is just as important to understand what is not considered R&D. The following activities are generally excluded when they are not directly linked to resolving scientific or technical uncertainty:

• Routine or periodic changes to products, services or processes, such as cosmetic design updates or minor configuration changes.
• Standard software implementation, configuration, maintenance or bug fixing that does not involve developing new technical solutions.
• Market research, customer surveys, sales activities and commercial business development.
• Administrative work, general management, HR and finance tasks, even if they support an R&D department.
• Training, education and standard staff upskilling not directly tied to a specific R&D project.
• Quality control and testing carried out as part of normal production, once the R&D phase has been completed.

Direct and indirect R&D activities

Qualifying R&D projects usually include both direct and indirect activities. Direct activities are the core technical tasks, such as design, coding, experiments and testing. Indirect activities can also be eligible when they are clearly linked to a specific R&D project, for example:

• Project management and coordination dedicated to the R&D project.
• Technical documentation, specifications and reporting required to plan and evaluate the R&D work.
• Support activities by engineers, technicians or specialists that enable the experimental work.

To be included in the R&D tax base, these indirect activities must be necessary for the project and properly documented as part of the R&D effort.

Sector-neutral rules, industry-specific examples

Danish R&D tax incentives are sector-neutral: manufacturing, software, life sciences, energy, construction, logistics and many other industries can all qualify. What matters is the presence of genuine technical or scientific uncertainty and a structured, documented approach to resolving it. For example:

• A manufacturing company developing a new production line to handle novel materials with unknown behaviour under high temperature and pressure.
• A tech company building a new data platform capable of processing very large, real-time data streams with strict latency and security requirements.
• A biotech start-up designing and testing new formulations or delivery mechanisms where stability and efficacy must be proven experimentally.
• An energy company developing new control algorithms for integrating renewable energy sources into the grid.

In all these cases, the key question is whether the project aims to achieve something that is not readily achievable with existing, publicly available knowledge and standard solutions.

How to determine if your activities qualify

When assessing whether your activities qualify for Danish R&D tax incentives, it is helpful to ask:

• Is there a clear technical or scientific uncertainty at the start of the project?
• Does the project follow a systematic process of investigation, experimentation and evaluation?
• Is the goal to create new or significantly improved products, processes or services, rather than to carry out routine work?
• Can the R&D work be clearly separated and documented, including time spent, costs and project results?

If the answer to these questions is yes, there is a strong indication that your activities may qualify for R&D tax incentives in Denmark. Proper documentation and a clear project structure are essential to support your claim and to demonstrate the R&D nature of your work to the tax authorities.

Eligibility Criteria: Who Can Benefit from R&D Tax Relief

Danish R&D tax relief is designed to support a wide range of businesses that invest in developing new or improved products, services, technologies or processes. Eligibility does not depend on operating in a specific industry, but on whether your activities meet the definition of research and development under Danish tax law. Understanding who can benefit is essential if you want to plan projects, budgets and tax positions effectively.

In Denmark, both companies subject to Danish corporate income tax and certain foreign entities with a Danish permanent establishment can access R&D tax incentives. This includes limited liability companies (A/S and ApS), branches of foreign companies, and in some cases partnerships where the partners are taxable in Denmark. The key requirement is that the entity is liable to pay Danish tax on the income to which the R&D costs relate.

There is no minimum or maximum company size for claiming R&D tax relief. Start-ups, scale-ups, SMEs and large corporations can all qualify, provided they incur eligible R&D expenditure. However, some mechanisms are particularly relevant for smaller or loss-making businesses. For example, companies that are in a tax loss position can typically obtain a cash refund of part of their R&D-related tax value, rather than waiting to use the benefit against future profits. This makes the scheme especially attractive for early-stage and high-growth companies that invest heavily in development before reaching stable profitability.

To benefit from R&D tax relief, your business must incur costs that are directly connected to qualifying R&D activities. These costs can include salaries for employees engaged in R&D, payments to external consultants and subcontractors, materials and prototypes used in development, and certain overheads that can be clearly allocated to R&D projects. The expenditure must be properly documented and identifiable in your accounts, and it must relate to projects that involve a systematic effort to achieve technological or scientific advancement or to resolve technical uncertainties.

Another important criterion is that the R&D work is carried out for your business. You can still qualify if you subcontract parts of the work to external partners, Danish or foreign, as long as your company bears the risk, controls the project and owns or co-owns the results. Conversely, if you simply perform routine work on behalf of another company that owns the project and the associated risks, your ability to claim R&D tax relief may be limited to the extent that you carry out your own qualifying development activities.

Foreign-owned companies can also benefit when they have R&D activities in Denmark. If a Danish subsidiary or branch performs development work and is taxed in Denmark on the related income, it can generally claim R&D tax relief on eligible costs incurred locally. The fact that the group’s headquarters or main market is outside Denmark does not in itself restrict access to the incentive, as long as the Danish entity meets the standard tax and R&D criteria.

R&D tax relief is available across sectors, but it is particularly common in industries such as software and IT, life sciences, medical technology, green energy and cleantech, manufacturing, robotics, food and agriculture technology, and advanced engineering. Even if your company operates in a more traditional field, you may still qualify if you are developing new digital tools, automating processes, or improving products in a way that goes beyond routine updates or cosmetic changes.

To summarise, your business is likely to be eligible for Danish R&D tax relief if it:

• Is subject to Danish corporate taxation or operates a Danish permanent establishment
• Incurs identifiable costs on projects aimed at achieving technological or scientific advancement
• Faces technical or scientific uncertainty that cannot be resolved by standard, readily available solutions
• Controls the R&D project and bears the associated financial and technical risk
• Maintains adequate documentation of activities, objectives, methods and costs

Meeting these criteria does not automatically guarantee that every project or expense will qualify, but it provides a strong basis for assessing your position. Because the distinction between genuine R&D and routine development can be subtle, many businesses benefit from reviewing their projects and cost structure in detail before filing their tax return or requesting a refund of R&D-related tax value.

SkatteFUNN: A Key Component of Denmark's R&D Tax System

SkatteFUNN is a central element of the Danish framework for supporting research and development, designed to make it easier and more attractive for businesses to invest in innovation. It allows companies to obtain tax relief for documented R&D activities that aim to develop new or significantly improved products, services, processes or technologies. For many Danish businesses, SkatteFUNN is the main gateway to turning R&D costs into tangible tax savings or cash refunds.

The scheme is open to companies of all sizes and across most industries, as long as the R&D work is systematic, involves a degree of technological or scientific uncertainty, and is carried out with the goal of generating new knowledge or solutions. Both in-house projects and R&D carried out in collaboration with external partners can be covered, provided the Danish company bears the cost and risk of the project.

Under SkatteFUNN, eligible R&D expenses can typically include salaries for employees directly involved in R&D, payments to external consultants and research institutions, costs of materials and prototypes used in development work, and certain overheads that can be clearly allocated to the project. Routine quality control, market research, sales activities or purely aesthetic design work are normally excluded, even if they are related to an innovative product.

From a tax perspective, SkatteFUNN works by allowing an enhanced deduction of qualifying R&D costs when calculating taxable income. If the company is in a tax-paying position, this reduces corporate income tax. If the company reports a tax loss, it may be able to convert part of the R&D deduction into a cash refund, subject to annual limits on the amount that can be refunded. This mechanism is particularly important for start-ups and scale-ups that invest heavily in development but have not yet reached profitability.

Access to SkatteFUNN is conditional on submitting a well-documented application that describes the project’s objectives, innovation content, technical challenges and planned activities. The Danish tax authorities assess whether the project meets the definition of R&D and whether the budgeted costs are eligible. Once approved, the company can claim the tax benefit through its corporate tax return, supported by detailed documentation of actual expenses and project progress.

For Danish businesses planning R&D activities in the coming years, understanding SkatteFUNN is essential. Used correctly, it can significantly lower the net cost of innovation, improve cash flow and strengthen the business case for long-term development projects. At the same time, the scheme places clear demands on documentation, project structure and cost tracking, which means that early planning and ongoing compliance are crucial to securing and retaining the tax relief.

Understanding Tax Credits, Refunds, and Deductions for R&D

Understanding how R&D tax credits, refunds, and deductions work in Denmark is essential if you want to correctly plan and optimise the cost of innovation in your business. Although the rules are technical, in practice they boil down to three main questions: how much of your R&D spending can reduce your taxable income, when you can get a cash refund, and how these benefits interact with your overall tax position.

In Denmark, companies can generally deduct their R&D expenses as operating costs in the year they are incurred. On top of this standard deduction, the Danish tax system offers an additional uplift for approved R&D expenditure, which effectively increases the tax value of every krone spent on qualifying activities. The uplift applies to both in-house R&D and certain outsourced R&D costs, provided they are directly linked to eligible development projects and properly documented.

For profitable companies, the main benefit of R&D incentives is a lower corporate tax bill. Qualifying R&D costs reduce taxable income, and the uplift increases that reduction further. With the current corporate tax rate in Denmark set at 22%, every extra 100,000 DKK of deductible R&D expenses can lower your tax liability by 22,000 DKK, before taking into account any additional R&D uplift. This makes it important to correctly classify and separate R&D costs from general operating expenses in your accounting records.

Loss-making and early-stage companies can also benefit through tax refunds. If your R&D deductions create or increase a tax loss, you may be able to convert part of that loss into a cash refund, up to a capped amount of R&D expenditure per income year. The refund is calculated by applying the 22% corporate tax rate to the eligible portion of the tax loss generated by R&D activities. This mechanism can significantly improve cash flow for start-ups and scale-ups that invest heavily in development but do not yet generate taxable profits.

It is important to distinguish between a tax credit and a refund in the Danish context. A tax credit reduces the amount of tax you have to pay for a given year; it cannot exceed your total tax liability for that year. A refund, on the other hand, is a cash payment from the tax authorities when your eligible R&D-related tax loss is converted into money. If your R&D deductions are higher than the limit for conversion into a refund, the remaining loss is carried forward and can be used to offset future taxable profits.

Deductions for R&D can be taken either immediately in the year of expenditure or, in some cases, spread over several years through depreciation, depending on the nature of the asset and the applicable tax rules. Intangible assets such as patents, software, and development costs that are capitalised in the accounts may be depreciated for tax purposes over a number of years, while salaries, consumables, testing, and subcontractor costs directly linked to R&D are usually fully deductible in the year they are incurred. Choosing the right approach can influence both your effective tax rate and your reported financial results.

The Danish rules also interact with other tax elements, such as loss carryforwards, group taxation, and withholding taxes. For example, if your company is part of a Danish tax group, R&D deductions and related tax losses can often be used at group level, allowing another profitable group company to benefit from the R&D costs incurred in a different entity. This can be particularly relevant for international groups that centralise R&D activities in a Danish subsidiary or branch.

To make full use of R&D tax credits, refunds, and deductions, it is essential to maintain clear documentation of your projects, costs, and allocation methods. The tax authorities expect a transparent link between the technical work performed and the expenses claimed as R&D. Proper project descriptions, time records, and cost breakdowns not only support your claim but also help you calculate the potential tax benefit in advance, so you can factor it into budgets, pricing, and investment decisions.

In summary, Danish R&D tax incentives operate through three complementary mechanisms: enhanced deductions that reduce taxable income, tax credits that lower the corporate tax bill, and refunds that turn R&D-related tax losses into cash. Understanding how these elements work together in your specific situation allows you to structure your R&D activities more efficiently and to capture the full financial value of your innovation efforts.

How to Apply for R&D Tax Relief: Step-by-Step

Applying for R&D tax relief in Denmark is a structured process that requires coordination between your finance, technical and management teams. While the rules are set at national level and administered by the Danish Tax Agency (Skattestyrelsen), the practical steps inside your company are just as important as the formal tax filing. Below is a clear, step-by-step outline to help you prepare and submit a robust R&D tax relief claim for the 2026 income year.

1. Confirm that your projects qualify as R&D

Before you start collecting numbers, you need to identify which activities meet the Danish definition of research and development. In practice, this means:

• There is a clear element of technological or scientific uncertainty at the outset
• The outcome could not be reliably predicted using existing knowledge in your industry
• The work follows a systematic process of testing, experimentation or analysis
• The goal is to create new or significantly improved products, processes, services or technologies

Typical qualifying activities include feasibility studies, prototype development, experimental design, algorithm development, testing and validation, and development of new production methods. Routine maintenance, cosmetic changes or purely commercial activities do not qualify.

2. Map your R&D projects and phases

Once you know which activities are potentially eligible, group them into clearly defined R&D projects. For each project, document:

• Project name and internal reference
• Business objective and expected impact
• Technical or scientific challenges you are trying to solve
• Key milestones and phases (e.g. research, proof of concept, prototype, pilot, implementation)
• Start and end dates of the R&D work

This project structure will later help you link costs, staff time and external expenses to specific R&D activities, which is essential for a defensible tax claim.

3. Identify eligible R&D costs

Denmark allows a range of direct and certain indirect costs to be included in the R&D tax base, provided they are directly connected to qualifying projects. Typically eligible costs include:

• Salaries, bonuses and social security contributions for employees directly involved in R&D
• Costs of external consultants and subcontractors performing R&D work
• Materials and components used in experiments, prototypes and testing
• Depreciation of equipment and machinery used for R&D (for the R&D share of usage)
• Software licences and cloud services used primarily for R&D activities
• Testing, laboratory and certification costs directly linked to R&D

General overheads, sales and marketing expenses, and costs related to routine production are normally excluded. You should review your chart of accounts and cost centres to identify where R&D-related expenses are currently recorded and whether reclassification is needed.

4. Track staff time and allocate costs

Personnel costs are often the largest component of an R&D claim, so accurate time allocation is crucial. To support your claim:

• Implement time tracking for employees who work on both R&D and non-R&D tasks
• Define clear internal guidelines on what counts as R&D time
• Have managers review and approve time records regularly
• Allocate salaries and related costs to each R&D project based on documented hours

For equipment and software, determine the proportion of use that relates to R&D and apply that percentage to depreciation or lease costs. Keep a written explanation of your allocation method in case of later review by the tax authorities.

5. Calculate your R&D tax base and potential benefit

After identifying and allocating all eligible costs, calculate the total R&D expenditure for the income year. This figure forms the basis for your tax benefit. Depending on your tax position, the relief may take the form of:

• A reduction of your taxable income through enhanced deduction of R&D costs
• A tax credit or cash refund if you are in a loss-making position or have limited tax liability

Use your current corporate tax rate and the applicable R&D incentive rules to estimate the financial impact. This internal calculation helps you assess whether additional documentation or internal controls are needed before filing.

6. Prepare technical and financial documentation

A strong R&D tax relief application combines clear technical explanations with precise financial data. For each project, prepare:

• A concise technical description of the project, its objectives and uncertainties
• An overview of the methods, experiments and iterations carried out
• A summary of key results, prototypes or breakthroughs achieved
• A breakdown of costs by category (personnel, external services, materials, equipment, software, other)
• Supporting evidence such as project plans, meeting minutes, test reports, code repositories or lab notes

Ensure that the technical narrative clearly explains why the work goes beyond routine engineering or standard product development. The financial schedules should reconcile to your general ledger and annual accounts.

7. Coordinate with your annual tax return process

In Denmark, R&D tax relief is typically claimed through the corporate income tax return. To integrate the process smoothly:

• Align your R&D data collection with the financial year-end closing
• Share project lists, cost summaries and documentation with your tax and accounting team
• Ensure that R&D-related entries in the tax return match the figures in your internal schedules
• Check that any carry-forwards, credits or refunds are correctly reflected

If you use external accountants or tax advisors, provide them with your R&D documentation early so they can verify eligibility and calculations before submitting the return.

8. Complete the relevant tax forms and digital submissions

R&D tax relief claims are submitted electronically via the Danish tax authorities’ online systems. As part of your corporate tax filing, you will typically need to:

• Enter the total amount of qualifying R&D expenditure for the year
• Indicate the type of relief you are claiming (deduction, credit or refund, depending on your situation)
• Provide any required breakdowns by cost category or project, if requested in the digital form
• Confirm that you can provide supporting documentation upon request

Review all entries carefully before final submission. Small discrepancies between tax forms and financial statements can trigger additional questions from the authorities.

9. Observe deadlines and keep internal controls

R&D tax relief must be claimed within the general deadlines for filing and amending corporate tax returns in Denmark. To avoid losing benefits:

• Monitor statutory filing dates for your income year and set internal deadlines well in advance
• Ensure that any corrections to R&D figures are made within the allowed amendment period
• Maintain a clear audit trail from your tax return back to project-level data and source documents

Good internal controls reduce the risk of errors and make it easier to respond quickly if the tax authorities request additional information.

10. Respond to questions and maintain documentation

After filing, the Danish Tax Agency may review your R&D claim as part of routine control or targeted audits. You should be prepared to:

• Provide detailed project descriptions and technical explanations on request
• Submit cost breakdowns and reconciliations to your financial statements
• Share time records, contracts, invoices and other evidence supporting your claim
• Explain your methodology for allocating shared costs and staff time

Keep all R&D-related documentation for at least as long as the standard tax record retention period. This ensures you can substantiate your claim if questions arise in later years.

11. Review and improve your R&D tax process annually

R&D tax relief is not a one-off opportunity but an ongoing incentive. After each filing cycle, review your internal process:

• Identify projects or costs that were missed in the current year
• Improve time tracking and cost allocation where documentation was weak
• Update internal guidelines to reflect any changes in Danish R&D tax rules
• Train project managers and finance staff on how to recognise and document R&D activities

A structured, repeatable approach helps Danish businesses capture the full value of available R&D tax incentives while staying compliant with current regulations.

Required Documentation for R&D Tax Credit Claims

Preparing the right documentation is essential for a successful R&D tax relief claim in Denmark. Well-structured evidence not only supports the technical nature of your projects, but also proves the link between your R&D activities and the costs you include in your tax return. Below you will find the key types of documents Danish businesses should maintain to substantiate an R&D claim under current Danish tax rules.

1. Project description and technical documentation

Every R&D project included in your claim should be clearly documented. Tax authorities will expect to see that the work involves genuine development, uncertainty and systematic experimentation, not routine operations.

• Overall project description: objectives, background, and why the project is innovative or technologically challenging
• Technical problem statement: what technical or scientific uncertainty you aimed to resolve
• Description of hypotheses, tests and iterations: how you approached the problem and what experiments or prototypes you carried out
• Project timeline: start and end dates, key milestones and phases
• Final results: what you achieved, including partial successes or failures, and how the results will be used in your business

These documents can be based on existing internal material such as development reports, design documentation, test protocols, meeting minutes, or internal presentations, as long as they clearly show the R&D nature of the work.

2. Time registration and staff cost documentation

Labour costs are often the largest component of an R&D tax relief claim. To include salaries and related costs, you must be able to demonstrate how much time each employee spent on eligible R&D activities.

• Detailed time sheets or time registration extracted from your ERP or project management system, showing hours per employee per project
• Employment contracts or role descriptions that explain the employee’s function (e.g. engineer, developer, researcher, project manager)
• Payroll records for the relevant income year, including gross salary, pension contributions and mandatory social security contributions
• Allocation keys, if employees work partly on R&D and partly on non-R&D tasks, explaining how you calculated the R&D share of their time

Time registration should be consistent, contemporaneous and traceable to specific projects. Estimates made after the year-end without supporting records are more likely to be challenged by the Danish Tax Agency.

3. Documentation for external consultants and subcontractors

If you use external specialists, consultants or research institutions, their costs may also qualify, provided the work relates directly to your R&D projects.

• Contracts or framework agreements describing the scope of work and deliverables
• Invoices clearly specifying R&D-related services, project names and periods covered
• Reports, technical notes or deliverables prepared by the external party
• Evidence of payment, such as bank statements or payment confirmations

Where invoices cover both R&D and non-R&D services, you should prepare a clear allocation supported by correspondence, statements of work or other documentation.

4. Evidence of R&D materials, equipment and other direct costs

Many R&D projects require materials, components, prototypes, testing equipment or software licences. Only the portion used directly for R&D can be included in your claim, so precise documentation is important.

• Purchase invoices for materials, components, prototypes and testing services
• Inventory or consumption records showing which materials were used in specific R&D projects
• Lease or purchase agreements for equipment used in laboratories, testing facilities or development environments
• Software licence agreements and invoices for development tools, simulation software or testing platforms
• Depreciation schedules for assets used partly or fully in R&D, with a clear explanation of the R&D usage percentage

Where assets are used both for R&D and commercial production, you should document the basis for any apportionment, for example by usage hours, test runs or capacity allocation.

5. Accounting records and reconciliation to the tax return

Your R&D claim must be reconcilable to your statutory accounts and the figures reported in your Danish tax return. This is crucial when you apply for an increased deduction or a cash refund of R&D-related tax losses.

• General ledger extracts showing all R&D-related cost accounts
• Project accounting or cost centre reports for R&D projects
• Reconciliation schedules linking project costs to the total R&D amount claimed in the tax return
• Documentation of how you have applied the applicable deduction rate and any caps or limitations

The reconciliation should allow the Danish Tax Agency to follow each amount from the tax return back to underlying invoices, time records and project documentation without gaps.

6. Internal governance and approval documents

Strong internal governance supports the credibility of your R&D claim. It shows that R&D is planned, monitored and evaluated systematically within your organisation.

• Board or management minutes approving major R&D projects or budgets
• Internal R&D policies or guidelines describing how projects are initiated, evaluated and documented
• Stage-gate or project review documents, including go/no-go decisions and risk assessments
• Internal audit or quality assurance reports related to R&D processes

While not always mandatory, such documents can be valuable in case of questions or an audit, as they help demonstrate that your R&D activities are organised and strategically important.

7. Supporting documentation for collaboration and public funding

Many Danish businesses participate in collaborative R&D projects or receive grants and subsidies. These arrangements can affect which costs are eligible for tax relief and how they must be reported.

• Collaboration agreements with universities, research institutions or other companies
• Grant agreements and award letters from Danish or EU funding bodies
• Correspondence and progress reports submitted to funding agencies
• Documentation of how grants or subsidies have been recognised in your accounts and how they impact the R&D cost base for tax purposes

It is important to keep clear records showing which parts of your R&D costs are financed by external grants and which are borne by your company, as this can influence the deductible amount.

8. Digital storage and retention of R&D records

Danish tax rules require businesses to retain accounting and tax documentation for several years. For R&D claims, this means you should keep all relevant records for the full retention period, as the Danish Tax Agency may review past claims.

• Secure digital storage of project files, technical documentation and emails
• Backup procedures to ensure long-term accessibility of time records, invoices and contracts
• Clear file naming and indexing so that documents can be retrieved quickly in case of questions or an audit

Consistent and well-organised documentation not only reduces the risk of adjustments and penalties, but also makes it easier to prepare future R&D tax relief claims as your innovation activities grow.

Key Deadlines and Filing Timelines for R&D Tax Applications

Timing is critical when claiming R&D tax relief in Denmark. Missing a deadline can mean losing the right to deduct R&D costs or to receive a cash refund. Below is an overview of the key dates and filing windows that Danish businesses should monitor when planning their R&D tax strategy.

General timeline for claiming R&D tax relief

In Denmark, R&D tax incentives are claimed through the corporate tax return and, where relevant, through a separate application for cash refunds of tax losses. The main rules are:

• R&D deductions and uplift are claimed in the tax return for the income year in which the R&D costs are incurred
• Cash refunds of tax losses related to R&D must be requested together with, or immediately following, the filing of the corporate tax return
• Corrections to R&D claims are generally possible within the ordinary reassessment period, but late adjustments may be scrutinised more closely by the Danish Tax Agency (Skattestyrelsen)

Corporate tax year and filing deadlines

Danish companies can have either a calendar year or an approved deviating income year. The deadline for filing the corporate tax return, including R&D claims, depends on the end of the income year:

• For income years ending between 1 January and 31 March: the corporate tax return must typically be filed by 1 August in the same calendar year
• For income years ending between 1 April and 30 June: the filing deadline is usually 1 November in the same calendar year
• For income years ending between 1 July and 30 September: the deadline is generally 1 February in the following calendar year
• For income years ending between 1 October and 31 December: the deadline is typically 1 May in the following calendar year

These deadlines apply to both the standard deduction of R&D expenses and any additional R&D-related tax incentives that are claimed via the corporate tax return. Companies should verify their exact deadline in the digital tax portal, as Skattestyrelsen may set specific dates based on the registered income year.

Deadlines for applying for R&D-related tax refunds

Loss-making companies that qualify for a cash refund of tax losses related to R&D must submit their request no later than the corporate tax return deadline for the relevant income year. In practice, this means:

• The application for refund is filed electronically together with the tax return
• If the tax return is filed before the statutory deadline, the refund request must be included at that time
• Late or separate refund applications submitted after the tax return deadline are at risk of being rejected

Once the tax return and refund request are filed, Skattestyrelsen will typically process the R&D-related refund within a few months, provided that the documentation is complete and no additional questions arise.

Year-end planning and pre-deadline actions

To make full use of the available R&D tax incentives, businesses should start preparing well before the filing deadline. Key internal milestones often include:

• At or shortly after year-end: identifying R&D projects and mapping eligible costs (wages, materials, external consultants, etc.)
• Within the first quarter after year-end: aligning finance, tax and technical teams to confirm which activities meet the Danish R&D criteria
• Well before the tax return deadline: finalising calculations, preparing supporting documentation and ensuring that the R&D claim is correctly reflected in the tax return

Early preparation reduces the risk of errors and gives time to respond to any questions from auditors or internal stakeholders before the statutory filing date.

Reassessment periods and corrections

If a company discovers after filing that it has underclaimed or overclaimed R&D tax relief, it may request a reassessment within the ordinary limitation period. In Denmark, the general time limit for reassessment of corporate income tax is:

• Up to 1 May in the fourth year after the end of the relevant income year for taxpayer-initiated corrections

Within this period, companies can usually adjust their R&D deductions and related tax positions. However, large or unusual corrections may trigger additional questions or a targeted review by Skattestyrelsen, so it is advisable to ensure that all R&D-related changes are well documented.

Payment dates and impact on cash flow

The timing of R&D tax relief also interacts with advance tax payments and final tax settlements. Key points include:

• R&D deductions reduce taxable income and therefore the final corporate tax payable for the income year
• If the company has made advance tax payments based on higher expected taxable income, the R&D claim can result in a tax refund upon final assessment
• For loss-making companies, approved R&D-related loss refunds are typically paid out after the tax return has been processed and the assessment is finalised

By aligning R&D claims with advance tax planning, businesses can improve their cash flow and avoid unnecessary overpayments.

Practical recommendations for staying on schedule

To avoid missing critical deadlines for R&D tax applications in Denmark, companies should:

• Confirm their registered income year and corresponding corporate tax filing deadline in the tax portal
• Set internal deadlines at least several weeks before the statutory filing date for finalising R&D calculations and documentation
• Ensure that all R&D-related refund requests are submitted together with the corporate tax return
• Monitor any communications from Skattestyrelsen after filing, as requests for additional information will have their own response deadlines

A clear internal timeline, combined with accurate documentation and timely filing, is essential to secure the full value of R&D tax relief and to minimise the risk of disputes or delayed refunds.

How to Calculate R&D Tax Credit Amounts for Your Business

Calculating the value of R&D tax relief for your Danish business starts with a clear overview of your eligible R&D costs and how they interact with the current corporate tax rules. While the exact benefit depends on your company’s tax position, size and financing, the calculation can be broken down into a series of practical steps.

1. Identify your R&D cost base

The starting point is to determine the total amount of costs that qualify as R&D under Danish rules. In practice, this typically includes:

• Salaries and wages for employees directly involved in R&D projects, including pension contributions and social security
• Costs of external consultants and specialists working on R&D tasks
• Materials, prototypes and test runs directly related to development activities
• Depreciation of R&D equipment and software used in development projects
• Overheads that can be clearly allocated to R&D (for example, a documented share of rent, utilities or IT infrastructure)

Only costs that are directly linked to systematic research or development aimed at creating new or significantly improved products, services or processes should be included. Routine maintenance, minor updates or purely commercial activities must be excluded from the R&D cost base.

2. Separate R&D costs from ordinary business expenses

Once you have a list of potential R&D costs, the next step is to separate them from general operating expenses. This usually involves:

• Time tracking for employees to determine the percentage of working hours spent on R&D
• Project-based accounting to allocate invoices and internal costs to specific development projects
• Clear documentation of which parts of a project are experimental or innovative, and which are routine or commercial

The more precisely you can document this allocation, the easier it is to justify your R&D cost base in case of questions from the tax authorities.

3. Apply the Danish corporate tax rate

Denmark currently applies a corporate income tax rate of 22%. R&D tax relief is typically realised through:

• A deduction of R&D costs from taxable income at the standard 22% rate
• In some cases, an increased deduction or a cash refund mechanism for certain R&D-related losses, depending on the specific scheme and your company’s tax position

To estimate the basic tax value of your R&D costs, multiply your eligible R&D cost base by 22%. This gives you the approximate reduction in corporate tax, assuming your company has sufficient taxable income to utilise the full deduction.

4. Consider enhanced deductions and refund options

Danish rules allow for more favourable treatment of R&D costs in certain situations, especially for companies that are still in a loss-making or early growth phase. Depending on the applicable scheme and your company’s status, you may be able to:

• Apply an enhanced deduction for qualifying R&D costs, increasing the tax value beyond a simple 22% deduction
• Convert part of unused R&D-related tax losses into a cash refund, subject to specific limits and caps per income year

When calculating your potential benefit, you should therefore distinguish between:

• The tax saving from deducting R&D costs against positive taxable income
• The possible cash refund or carry-forward of R&D-related losses if your company is not yet profitable

5. Work through a simplified example

To illustrate the mechanics, imagine a Danish company with the following figures for the income year:

• Turnover: DKK 10,000,000
• Non-R&D operating costs: DKK 8,000,000
• Eligible R&D costs: DKK 1,500,000

Without any special R&D treatment, the taxable income would be:

DKK 10,000,000 – DKK 8,000,000 – DKK 1,500,000 = DKK 500,000

Corporate tax at 22% on DKK 500,000 is DKK 110,000.

The tax value of the R&D costs in this scenario is the 22% tax saving on DKK 1,500,000, which equals DKK 330,000. In other words, the company reduces its tax bill by DKK 330,000 compared with a situation where the R&D costs were not deductible.

If the company instead had a tax loss due to high R&D spending, part of that loss might be eligible for a cash refund under the relevant Danish rules, up to the applicable annual limit. In that case, the calculation would focus on the portion of the loss attributable to R&D and the percentage of that amount that can be refunded.

6. Factor in caps, thresholds and group situations

When calculating your final R&D tax benefit, you must also consider:

• Any statutory caps on the amount of R&D-related loss that can be converted into a cash refund per year
• Group taxation rules, if your company is part of a Danish or international group filing jointly
• Interaction with other tax incentives or grants, to avoid double counting the same cost

These elements can significantly influence the effective value of your R&D tax relief and should be integrated into your internal calculation model.

7. Build an internal calculation model

For ongoing planning and budgeting, many Danish businesses create a simple internal model that:

• Tracks R&D costs by project and cost type throughout the year
• Automatically applies the 22% corporate tax rate to estimate the tax value
• Separates the effect of deductions, loss carry-forwards and potential cash refunds
• Simulates different scenarios (for example, higher R&D spending, lower taxable income, or changes in group structure)

Such a model helps management understand how each additional krone invested in R&D affects the company’s after-tax cash flow and supports more informed decisions about future innovation projects.

8. Review your calculations before filing

Before finalising your tax return, it is important to review your R&D calculations with a focus on:

• Consistency between your financial statements, project documentation and tax figures
• Clear justification for why each cost item is classified as R&D
• Correct application of the corporate tax rate and any special R&D provisions

A careful review reduces the risk of errors, supports a smoother dialogue with the tax authorities and ensures that your business fully benefits from the R&D incentives available under Danish law.

Common Challenges in Applying for R&D Tax Credits

Applying for R&D tax relief in Denmark can be demanding, even for experienced finance teams. The rules are detailed, the documentation burden is high, and the Danish Tax Agency (Skattestyrelsen) expects a clear link between the project description, the technical uncertainty, and the costs you claim. Understanding the most common challenges can help you prepare better and reduce the risk of corrections, delays, or audits.

1. Distinguishing genuine R&D from routine work

One of the biggest difficulties for Danish businesses is deciding which activities actually qualify as R&D. Many companies try to include:

• Routine product updates and versioning
• Bug fixing and maintenance of existing systems
• Standard implementation of known technologies

These tasks usually do not meet the requirement of addressing scientific or technological uncertainty. To be eligible, your project must aim to achieve something that was not readily achievable using existing knowledge and standard practice in your industry. Clearly separating qualifying R&D from day-to-day operations is essential for a robust claim.

2. Demonstrating technological uncertainty and innovation

Skattestyrelsen focuses strongly on whether your project involves genuine technological uncertainty. A common challenge is that companies describe their projects in commercial terms only (new market, new customer segment, higher revenue) instead of explaining:

• What was technically unknown or not straightforward at the outset
• Which alternative approaches were considered and tested
• What experiments, prototypes, or trials were carried out
• What new knowledge, methods, or solutions were created

Without this level of technical detail, even substantial development work can be rejected as non-qualifying. Close collaboration between engineers, developers, and finance staff is often needed to prepare a convincing description.

3. Correctly identifying eligible R&D costs

Another frequent issue is misclassifying costs. Danish rules allow you to include, among others:

• Wages and salaries directly related to R&D work
• Depreciation of R&D equipment and software used in the project
• Consumables and materials used in experiments and prototypes
• Certain external consultancy and subcontractor costs directly linked to R&D

Challenges arise when businesses:

• Include general overheads or administration not directly tied to R&D
• Fail to separate R&D time from non-R&D tasks for the same employees
• Do not allocate equipment usage proportionally between R&D and other activities

Accurate cost allocation and clear internal rules for time and expense tracking are crucial to avoid over-claiming or under-claiming.

4. Time tracking and documentation of staff involvement

For many Danish companies, especially SMEs and start-ups, systematic time tracking is not part of everyday practice. However, for R&D tax relief, you must be able to demonstrate:

• Which employees worked on R&D projects
• How many hours or what percentage of their time was spent on qualifying activities
• How their work contributed to resolving technological uncertainty

Missing or incomplete timesheets, vague job descriptions, and lack of project codes in payroll systems are common weaknesses. They can lead to reductions in the claim or, in the worst case, full rejection of personnel costs.

5. Insufficient project documentation

Skattestyrelsen expects consistent documentation that supports both the technical and financial aspects of your claim. Typical gaps include:

• No clear project plan or scope definition at the start of the R&D work
• Missing records of experiments, test results, and iterations
• Lack of version control for prototypes or software builds
• Inconsistent naming of projects between technical teams and accounting

Without a clear audit trail from project idea to final outcome and from technical work to booked costs, it becomes difficult to defend the claim during a review or audit.

6. Mixing multiple projects and cost centres

Many businesses run several development initiatives in parallel. A common challenge is that:

• Costs from different projects are booked under one general “development” account
• Non-qualifying commercial or implementation tasks are mixed with R&D activities
• Shared resources (e.g. cloud infrastructure, test environments) are not allocated clearly

This makes it hard to isolate the costs of each qualifying R&D project. Implementing project-specific cost centres and clear internal guidelines for booking expenses can significantly improve the quality of your claim.

7. Understanding the interaction with other tax rules and grants

Another area of confusion is how R&D tax relief interacts with other incentives and tax rules. Typical questions include:

• How to treat R&D grants and subsidies when calculating eligible costs
• Whether the same cost can be supported by both a grant and a tax incentive
• How R&D deductions affect taxable income and loss carry-forwards

Incorrect treatment can lead to double counting or, conversely, to missed opportunities. Coordinating R&D tax relief with other funding sources and your overall tax strategy is essential for compliance and optimisation.

8. Meeting deadlines and aligning with the financial year

R&D tax claims must be aligned with your Danish financial statements and corporate tax return. Common timing challenges include:

• Starting to collect documentation only after the year-end closing
• Discovering eligible projects too late to adjust accounting entries
• Missing internal review deadlines, which increases the risk of errors

Integrating R&D identification and documentation into your regular financial reporting cycle helps ensure that all qualifying activities and costs are captured within the correct income year.

9. Communicating effectively with Skattestyrelsen

When Skattestyrelsen requests additional information or opens a review, the way you respond can significantly influence the outcome. Frequent issues include:

• Overly brief or generic answers that do not address the specific questions
• Highly technical explanations that are not understandable for non-specialists
• Sending large volumes of unstructured documents without clear references

Effective communication means providing concise, structured explanations, clearly linking each document to the relevant part of your claim, and ensuring that both the technical and tax perspectives are covered.

10. Underestimating the risk of audits and corrections

Some companies treat R&D tax relief as a low-risk area and submit claims without sufficient internal review. This can lead to:

• Post-filing corrections and repayment of tax benefits
• Interest charges on underpaid tax
• Increased scrutiny of future claims

Establishing internal controls, documenting your methodology for identifying R&D and calculating costs, and keeping a clear audit trail significantly reduces these risks and strengthens your position if Skattestyrelsen examines your application.

By being aware of these common challenges and addressing them early, Danish businesses can improve the quality of their R&D tax credit applications, reduce the likelihood of disputes, and make more reliable use of the available tax incentives to support innovation and long-term growth.

Case Studies: Businesses That Benefited from R&D Tax Relief

Real-life examples can make it easier to understand how Danish R&D tax relief works in practice. Below are illustrative case studies showing how different types of businesses – from start-ups to established manufacturers – can benefit from the current Danish R&D incentive rules, including the enhanced deduction and the option to receive a cash refund of tax losses linked to R&D expenditure.

Technology start-up developing AI software

A Copenhagen-based software start-up is building an AI platform for predictive maintenance in the energy sector. The company has 10 employees, most of them developers and data scientists. It has not yet reached profitability and reports a tax loss for the year.

During the income year, the company incurs the following R&D-related costs that qualify as research and development under Danish tax rules:

• Salaries for developers and data scientists: DKK 3,000,000
• External consultants for algorithm optimisation: DKK 400,000
• Cloud infrastructure and testing environments directly linked to R&D: DKK 300,000
• Prototyping and test licences: DKK 300,000

Total qualifying R&D expenditure amounts to DKK 4,000,000. Under the current Danish regime, the company can apply the enhanced R&D deduction of 130% on eligible costs. This means:

Tax-deductible R&D amount = DKK 4,000,000 × 130% = DKK 5,200,000

Because the company is loss-making, it does not pay corporate tax. Instead, it can request a cash refund of the tax value of part of its R&D-related tax loss. The maximum R&D base for the refund is DKK 25,000,000 per income year. The tax value is calculated using the corporate tax rate of 22%.

In this case, the entire DKK 4,000,000 of qualifying R&D costs is within the DKK 25,000,000 cap. The tax value of the R&D loss is:

Refund = DKK 4,000,000 × 22% = DKK 880,000

The start-up applies for the refund when filing its corporate tax return with Skattestyrelsen. After approval, it receives DKK 880,000 as a cash payment from the tax authorities. This significantly improves liquidity and allows the company to:

• Hire two additional developers to accelerate product development
• Extend testing with pilot customers without seeking extra external funding
• Reinvest in further cloud capacity and data acquisition

Without the R&D tax relief and the cash refund mechanism, the company would have had to slow down its development roadmap or raise additional equity earlier than planned.

Manufacturing company introducing a new green product line

A medium-sized manufacturing business in Jutland produces industrial components for the wind energy sector. The company is profitable and pays corporate tax at the standard 22% rate. It decides to develop a new, lighter component using recycled materials and advanced coatings to improve durability.

Over the year, the company incurs the following R&D costs:

• Engineers’ and technicians’ salaries directly allocated to R&D projects: DKK 5,500,000
• Materials and prototypes for testing: DKK 1,000,000
• External laboratory testing and certification related to R&D: DKK 700,000
• Specialised software licences used for simulations and design: DKK 300,000

Total qualifying R&D expenditure: DKK 7,500,000.

The company applies the 130% enhanced deduction to these costs:

Tax-deductible R&D amount = DKK 7,500,000 × 130% = DKK 9,750,000

If the company’s taxable profit before the R&D deduction is DKK 30,000,000, the enhanced deduction reduces the taxable income as follows:

Taxable income after R&D deduction = DKK 30,000,000 − DKK 9,750,000 = DKK 20,250,000

Corporate tax without R&D incentive:

DKK 30,000,000 × 22% = DKK 6,600,000

Corporate tax with R&D incentive:

DKK 20,250,000 × 22% = DKK 4,455,000

Total tax saving due to the R&D enhanced deduction:

DKK 6,600,000 − DKK 4,455,000 = DKK 2,145,000

The company uses the tax savings to:

• Invest in a pilot production line for the new green component
• Finance additional R&D to improve recyclability and reduce material waste
• Strengthen its in-house testing facilities

The R&D tax relief reduces the effective cost of innovation and makes it more attractive for the company to continue investing in sustainable technologies.

Life science SME developing a medical device

A small life science company located near Aarhus is developing a new medical device for remote patient monitoring. The company collaborates with a university hospital and several external research partners. It has limited revenue and fluctuates between small profits and tax losses.

In the relevant income year, the company records:

• Internal R&D salaries and social costs: DKK 6,000,000
• Clinical trial costs and external research services: DKK 4,000,000
• Specialised equipment used primarily for R&D: DKK 2,000,000

Total qualifying R&D expenditure: DKK 12,000,000.

The company applies the 130% enhanced deduction:

Tax-deductible R&D amount = DKK 12,000,000 × 130% = DKK 15,600,000

Because the company’s other activities generate only modest income, it ends the year with a tax loss. It chooses to request a cash refund of the tax value of the R&D-related loss, up to the annual cap of DKK 25,000,000 in qualifying R&D costs.

The tax value of the DKK 12,000,000 R&D base is:

Refund = DKK 12,000,000 × 22% = DKK 2,640,000

This refund is paid out after the corporate tax return is filed and the claim is approved. The cash inflow of DKK 2,640,000 enables the company to:

• Extend clinical trials to a larger patient group
• Strengthen regulatory documentation and quality assurance
• Delay the need for new equity financing, preserving ownership for existing shareholders

The combination of the enhanced deduction and the refund of the tax value of R&D losses makes it financially feasible for the SME to pursue a long and capital-intensive development process in the medical field.

Key takeaways from the case studies

These examples show how the Danish R&D tax relief framework can benefit very different types of businesses:

• Start-ups and loss-making companies can improve cash flow by receiving a refund of the tax value of R&D-related tax losses, up to DKK 25,000,000 in qualifying costs per year
• Profitable companies can reduce their corporate tax bill through the 130% enhanced deduction on eligible R&D expenditure
• Both SMEs and larger businesses can use the savings to reinvest in innovation, accelerate product development and strengthen their competitive position

For many Danish businesses, understanding how to correctly identify qualifying R&D activities, document costs and apply the enhanced deduction and refund options is crucial to fully benefit from the available incentives and support long-term innovation.

How the R&D Tax Incentive Supports Innovation in Denmark

R&D tax incentives play a central role in how Denmark nurtures innovation, productivity and long‑term competitiveness. By lowering the effective cost of research and development, the Danish tax system encourages companies to take on more ambitious projects, invest in new technologies and bring knowledge‑based products and services to market faster.

Under current rules, Danish businesses can deduct up to 130% of eligible R&D expenses when calculating taxable income. This enhanced deduction applies to qualifying costs such as salaries for employees directly involved in R&D, consumables, certain subcontracted R&D services and depreciation of R&D equipment. For loss‑making companies and start‑ups, part of the tax value of these R&D costs can be refunded in cash, up to a capped amount per income year, which helps secure liquidity in the early stages of growth.

These incentives are designed to support innovation across the entire economy, not only in high‑tech sectors. Companies in manufacturing, software, life sciences, green energy, logistics, construction, food production and many other industries can benefit, provided their projects aim to resolve scientific or technological uncertainties and generate new or improved products, processes or services. This broad scope helps spread innovation capacity beyond large R&D‑intensive corporations to smaller, specialised businesses throughout Denmark.

For Danish start‑ups and scale‑ups, the combination of enhanced deductions and potential cash refunds can significantly reduce the financial risk of building prototypes, testing new technologies or developing digital platforms. Instead of postponing R&D until they become profitable, young companies can invest earlier and more aggressively, knowing that part of their costs will be offset through the tax system. This accelerates time‑to‑market and strengthens the pipeline of innovative Danish companies ready to expand internationally.

Established businesses also use R&D tax relief to modernise production, automate processes and implement data‑driven solutions. By making it more attractive to invest in new machinery, software and development teams, the incentive supports higher productivity and helps Danish companies remain competitive in a global market with rapid technological change. It also encourages firms to keep strategic R&D activities in Denmark, rather than relocating them to jurisdictions with more favourable tax treatment.

The R&D tax incentive further supports collaboration between companies, universities and research institutions. When businesses can recover part of their R&D expenditure, they are more likely to enter into joint research projects, fund industrial PhDs or co‑develop solutions with academic partners. This strengthens Denmark’s innovation ecosystem, facilitates knowledge transfer and helps ensure that publicly funded research is translated into commercial applications.

From a policy perspective, the R&D tax scheme is a key tool for advancing national priorities such as green transition, digitalisation and life science innovation. By rewarding private investment in areas with high societal value but significant technical uncertainty, the tax incentive helps channel resources into projects that contribute to climate goals, more efficient public services and improved health outcomes.

Over time, the cumulative effect of these incentives is visible in Denmark’s strong performance in innovation rankings, high R&D intensity in several sectors and the growing number of technology‑driven SMEs. For individual businesses, R&D tax relief reduces the after‑tax cost of innovation; for the Danish economy as a whole, it supports sustainable growth, high‑skilled employment and the development of globally competitive solutions originating from Denmark.

The Role of Skatteetaten in R&D Tax Credit Applications

In Denmark, the Danish Tax Agency (Skattestyrelsen) is the central authority responsible for administering and supervising R&D tax relief. It oversees how companies calculate, report, and document their research and development costs, and it ultimately decides whether your R&D tax credit or refund claim is approved. Understanding its role helps you prepare compliant applications and reduce the risk of adjustments or audits.

Skattestyrelsen’s primary task in the R&D area is to ensure that only genuinely eligible R&D activities and costs benefit from tax incentives. This includes verifying that your projects meet the definition of R&D under Danish tax law, that your expenses are correctly categorized as R&D, and that your calculations of additional deductions or refundable tax credits are accurate. The agency reviews information reported in your corporate tax return, including the special R&D fields where you declare enhanced deductions and any request for a cash refund of unused R&D tax credits.

When you submit your annual corporate tax return, Skattestyrelsen uses the data to assess whether your R&D tax position is consistent with the law and with your financial statements. It may compare the level of R&D costs you claim with prior years, your industry, and other information available to the tax authorities. If something appears inconsistent or unclear, the agency can request additional documentation, such as project descriptions, technical reports, time sheets, internal cost allocations, and contracts with external research partners.

Skattestyrelsen also plays a key role in interpreting the boundary between routine product development and qualifying R&D. In practice, this means that the agency looks closely at whether your projects involve systematic work aimed at achieving scientific or technological advancement, and whether they include elements of technical uncertainty. Activities that simply adapt existing solutions or involve standard implementation work are less likely to qualify, and Skattestyrelsen may adjust your claim if it concludes that certain tasks do not meet the R&D criteria.

Another important function of Skattestyrelsen is to process applications for cash refunds of R&D tax credits when your company is in a loss position. Danish rules allow companies with negative taxable income to receive a refund of a portion of their R&D-related tax value, up to a fixed annual ceiling. In these cases, the agency checks that the requested refund does not exceed the allowed limit and that the underlying R&D costs have been correctly identified and documented. If the documentation is incomplete or inconsistent, Skattestyrelsen can reduce the refundable amount or deny the refund.

The Danish Tax Agency also issues guidance and practical instructions that help businesses understand how to apply the R&D rules. This guidance clarifies which types of costs can be included, how to treat wages, subcontractor fees, and materials, and how to allocate overheads to R&D projects. While the legal framework is set by the Danish Parliament and the Ministry of Taxation, Skattestyrelsen’s published guidelines and binding rulings shape how the law is applied in real cases. Companies that stay up to date with this guidance are better positioned to prepare robust R&D claims.

In the event of an audit, Skattestyrelsen examines both the technical and financial aspects of your R&D activities. It may ask for detailed project plans, evidence of experiments or prototypes, and explanations of the technological challenges you sought to overcome. On the financial side, it can review payroll records, invoices, and internal accounting entries to verify that only eligible R&D costs have been included in your tax calculation. If the agency finds errors, it can reassess your tax position, reclaim overpaid refunds, and in serious cases impose interest and penalties.

For Danish businesses, the role of Skattestyrelsen in R&D tax credit applications is therefore both supervisory and advisory. The agency enforces the rules, but it also provides the framework and explanations that allow companies to plan their R&D activities and tax positions with greater certainty. By aligning your internal documentation, project descriptions, and cost tracking with the expectations of Skattestyrelsen, you strengthen your position when claiming R&D tax relief and reduce the likelihood of disputes or delays in receiving your tax benefits.

Impact of R&D Tax Relief on Start-ups and SMEs

Research and development tax relief plays a particularly important role for Danish start-ups and small and medium-sized enterprises (SMEs). These businesses often operate with tight cash flow, limited access to external financing and high upfront development costs. R&D tax incentives help reduce the effective cost of innovation by allowing companies to deduct a higher share of eligible R&D expenses from their taxable income and, in some cases, convert tax losses into cash refunds.

For smaller companies, the most immediate impact is on liquidity. Danish rules allow enhanced deductions for qualifying R&D salary costs and other eligible expenses, which can significantly lower the corporate tax base. When a start-up is not yet profitable and reports a tax loss, the value of these R&D deductions can often be carried forward to offset future profits. In some situations, part of the tax value of R&D-related losses can be paid out as a cash refund, improving short-term cash flow and reducing the need for external funding.

R&D tax relief also helps start-ups and SMEs manage risk. Early-stage companies frequently invest in experimental technologies, prototypes and software development without certainty that these projects will succeed commercially. By reducing the after-tax cost of these activities, the Danish R&D incentive framework makes it more attractive to pursue ambitious projects, hire specialised staff and collaborate with universities or research institutions. This can be decisive for companies working in sectors such as clean tech, life sciences, IT, advanced manufacturing and green transition technologies.

Another key impact is on competitiveness. SMEs that systematically identify and document their R&D activities can build a more robust cost structure than competitors who do not use the scheme. Lower effective R&D costs make it easier to price products competitively, invest in new features and enter export markets. Over time, this can support faster scaling and higher productivity, which are central policy goals in Denmark’s innovation and business strategy.

R&D tax relief can also influence hiring and talent retention. The ability to deduct a higher proportion of R&D-related salary costs makes it more affordable for small businesses to employ engineers, developers and researchers. This is particularly relevant for start-ups that rely heavily on highly qualified staff but cannot yet match the salary levels of large corporations. By improving the financial return on each krone spent on R&D personnel, the incentives indirectly support the creation of high-skilled jobs.

For founders and owners, the scheme encourages a more structured approach to innovation. To benefit fully from R&D tax relief, start-ups and SMEs must distinguish clearly between routine commercial activities and genuine R&D, maintain project documentation and track eligible costs. This discipline often leads to better internal project management, clearer milestones and more transparent budgeting. In practice, many smaller companies discover that they conduct more qualifying R&D than they initially assumed once they start mapping their activities against the tax rules.

From a strategic perspective, R&D tax incentives can help bridge the so-called “valley of death” between early development and market launch. By lowering the net cost of prototyping, testing and regulatory approvals, the relief can make it financially viable to bring new products and services to market that might otherwise remain on the drawing board. This is especially important in capital-intensive fields, where the period before first revenue can be long and uncertain.

Finally, the cumulative effect of R&D tax relief on start-ups and SMEs extends beyond individual companies. When more small businesses invest in innovation, the result is a broader and more dynamic innovation ecosystem in Denmark. Increased R&D activity among SMEs strengthens local supply chains, stimulates collaboration with research institutions and contributes to regional development. For many young companies, understanding and using the available R&D tax incentives is therefore not just a financial optimisation, but a central element of their long-term growth strategy.

Changes in R&D Tax Incentives for 2026 and Beyond

Danish R&D tax incentives are being adjusted to better target innovative companies, especially start-ups and SMEs with high development costs but limited taxable profits. While the overall framework of enhanced R&D deductions and the option to receive a cash refund instead of carrying losses forward remains in place, several parameters are changing for 2026 and the following years. Understanding these changes early will help you plan projects, budgets and tax positions more effectively.

The core rule that allows companies to deduct 130% of eligible R&D costs from taxable income is expected to be maintained, but the political focus is shifting toward tighter documentation and clearer separation between routine product development and genuine R&D activities. In practice, this means that from 2026 you should expect the Danish Tax Agency to scrutinise borderline projects more closely, particularly within software development, digitalisation and process optimisation, where it can be difficult to distinguish innovation from day-to-day operations.

Another important development is the gradual refinement of the cash refund scheme for tax losses generated by R&D expenses. The current model allows companies to request a cash refund of the tax value of R&D-related losses up to a specific ceiling per year. For 2026, the ceiling is being reassessed with the aim of keeping support attractive for smaller and medium-sized businesses while preventing very large claims from a small number of groups. You should therefore expect a defined annual cap on refundable R&D losses and a requirement to document that the loss is directly linked to qualifying R&D activities, not to general overhead or commercial costs.

Looking ahead, the Danish government has signalled that R&D tax incentives will increasingly be aligned with broader innovation and sustainability goals. This does not mean that only “green” projects will qualify, but projects that contribute to climate solutions, energy efficiency, circular economy or advanced digital infrastructure are likely to receive particular attention in guidance and practice. Over time, this may influence how you prioritise and structure your R&D portfolio, for example by documenting environmental or societal impact alongside the technological uncertainty and innovation.

From a compliance perspective, the trend is clearly toward more detailed reporting. For 2026 and beyond, companies should be prepared to:

• Provide more granular breakdowns of R&D staff time, including roles, tasks and allocation keys
• Separate R&D materials, prototypes and testing costs from production and sales expenses in the accounts
• Maintain project-level documentation that explains objectives, uncertainties, methods and results in non-technical language
• Align internal project codes and cost centres with the categories used in tax filings

Digitalisation of tax administration is also accelerating. R&D-related information will increasingly be filed and cross-checked electronically, which makes internal consistency between your financial systems, payroll, project management tools and tax returns more important. Inconsistent data – for example, different headcounts or cost totals across systems – is more likely to trigger follow-up questions or audits in the coming years.

For international groups, the interaction between Danish R&D incentives and foreign regimes will remain a focus area. Danish authorities are paying closer attention to transfer pricing, cost-sharing arrangements and the location of key R&D functions. If you operate cross-border R&D teams, you should expect more detailed questions about where development risks, decision-making and intellectual property ownership are located, and how costs and benefits are allocated between group entities.

In summary, the Danish R&D tax relief framework is expected to stay competitive, but it will become more structured and documentation-driven. Businesses that proactively adapt their internal processes – by defining R&D projects clearly, tracking costs accurately and preparing robust technical and financial evidence – will be best positioned to benefit from the incentives in 2026 and in the years that follow. Regularly reviewing your R&D pipeline, tax forecasts and documentation standards will help you capture available relief while reducing the risk of disputes or adjustments during audits.

Tax Strategies for Maximizing R&D Tax Benefits

Maximizing the value of R&D tax relief in Denmark requires more than simply identifying qualifying projects. It involves careful planning of costs, timing, documentation and the interaction with other tax rules. Below are practical strategies that Danish businesses can use to increase the effective benefit of available R&D incentives while staying compliant with current legislation.

1. Plan R&D Activities with the Tax Rules in Mind

Effective tax planning starts at the project design stage. When you define new development projects, clearly separate R&D activities from routine production, maintenance or customization work. Establish internal project codes for R&D from the outset so that all relevant costs can be tracked accurately in your accounting system. This makes it easier to demonstrate that the work meets the Danish definition of R&D and to allocate costs correctly between qualifying and non-qualifying activities.

It is also important to consider the timing of R&D expenses. If you expect fluctuating taxable profits, you may want to align major R&D investments with years in which you can make the most use of enhanced deductions or refunds. Consistent year‑on‑year investment in R&D can also help build a clear pattern of innovative activity, which is useful in case of later review by the tax authorities.

2. Build a Robust Cost-Tracking System

Many companies lose part of the potential R&D benefit because their cost tracking is not detailed enough. To maximize your claim, set up a structure that allows you to track:

• Direct staff costs for employees who work on R&D, including salaries, pensions and social security contributions
• Time spent on R&D versus non‑R&D tasks, using timesheets or other reliable allocation methods
• Materials and consumables used in experiments, prototypes and testing
• External consultants, subcontractors and research partners involved in eligible R&D activities
• Relevant overheads that can be reasonably allocated to R&D projects

The more precisely you can document and allocate these costs, the higher the portion that may qualify for R&D relief. Avoid generic cost pools that mix R&D and non‑R&D expenses without clear allocation keys, as these are difficult to defend in an audit.

3. Optimize the Use of Staff Costs

Personnel expenses are often the largest component of R&D costs. To maximize the benefit, identify all employees who contribute to eligible R&D, not only engineers or scientists. This may include project managers, software developers, data analysts, designers and technical specialists, as long as their work is directly linked to the R&D objectives.

Introduce a consistent time‑registration system that allows employees to record hours spent on specific R&D projects. Even a simple, well‑maintained system can significantly increase the proportion of staff costs that can be included in your R&D base. Ensure that job descriptions and internal project documentation reflect the innovative and experimental nature of the work where appropriate.

4. Coordinate R&D Incentives with Other Tax Rules

R&D tax relief should be considered as part of your broader tax strategy. In Denmark, R&D costs may interact with rules on depreciation, loss carry‑forwards, group taxation and the treatment of intangible assets. To maximize the net benefit, you should:

• Review whether it is more advantageous to expense certain R&D costs immediately or to capitalize and amortize them, taking into account your current and expected taxable income
• Consider how R&D deductions affect tax losses and whether these can be utilized within a Danish tax group
• Align your R&D strategy with your approach to patents, trademarks and other intellectual property, including potential future income from licensing or sales

Coordinating these elements helps ensure that you do not unintentionally reduce the value of R&D incentives by triggering less favorable treatment elsewhere in the tax system.

5. Make Strategic Use of Collaboration and Outsourcing

Many Danish businesses collaborate with universities, research institutions or specialized technology firms. To maximize R&D tax benefits, structure these collaborations so that your company can clearly identify and document the part of the work that qualifies as R&D and the related costs you bear.

When outsourcing R&D tasks, ensure that contracts specify the nature of the work, deliverables and the innovative or experimental elements. This makes it easier to demonstrate that the external services are directly connected to your R&D projects. Keep in mind that only the costs you actually incur and can substantiate will be considered when calculating your R&D base.

6. Strengthen Technical and Financial Documentation

Strong documentation is one of the most effective strategies for maximizing R&D tax benefits while reducing risk. From the beginning of each project, maintain:

• Clear project descriptions outlining objectives, technological or scientific uncertainties and the innovative aspects
• Research plans, test protocols, development roadmaps and progress reports
• Evidence of experiments, prototypes, failures and iterations that show a systematic search for new knowledge or solutions
• Financial records that link specific costs to specific R&D activities

Well‑structured documentation not only supports a higher claim but also shortens response times if the tax authorities request additional information.

7. Review Your R&D Portfolio Regularly

R&D activities evolve over time, and so do tax rules and administrative practices. Conduct regular internal reviews of your R&D portfolio to identify new projects that may qualify and to reassess ongoing projects. This helps you capture all eligible costs and adjust your tax strategy when regulations or your business model change.

For growing companies, especially start‑ups and scale‑ups, it is useful to establish an annual R&D review process involving finance, tax, R&D management and, where relevant, external advisors. This ensures that tax considerations are integrated into strategic decisions on product development and innovation.

8. Prepare Proactively for Possible Audits

Maximizing R&D tax benefits should always be balanced with compliance. Assume that your R&D claims may be reviewed and prepare accordingly. Define internal responsibilities for maintaining R&D documentation, responding to questions from the tax authorities and updating procedures when guidance changes.

By building audit‑ready processes into your daily operations, you reduce the risk of adjustments, penalties or the need to repay benefits. At the same time, you can claim the full amount you are entitled to, confident that your position is well supported.

Combining these strategies allows Danish businesses to turn R&D tax incentives into a predictable and sustainable part of their innovation financing, rather than a one‑off opportunity. Thoughtful planning, precise cost tracking and strong documentation are the key elements of an effective approach.

What Happens if Your R&D Tax Credit Application Is Audited?

An audit of your R&D tax relief claim does not automatically mean you have done something wrong. In Denmark, the tax authority (Skattestyrelsen) routinely reviews R&D claims to verify that the activities qualify as research and development and that the related costs are calculated correctly. Understanding what to expect and how to prepare can significantly reduce stress and the risk of adjustments, penalties or repayment of tax benefits.

Most audits are triggered by one of three factors: unusually large R&D deductions or refunds compared with your turnover, a sudden increase in R&D spending from one year to the next, or incomplete or inconsistent information in your tax return or supporting documentation. In some cases, Skattestyrelsen may also select claims randomly as part of broader compliance checks focused on R&D incentives.

If your application is selected for audit, you will typically receive a written request for additional information. This letter will specify which income years are being reviewed, which R&D projects are in focus, and what type of documentation is required. You will usually be asked to provide a clear description of the projects, explain why they qualify as R&D under Danish tax rules, and submit detailed cost breakdowns for salaries, external services, materials and other eligible expenses.

During the audit, Skattestyrelsen will assess both the technical and financial aspects of your claim. On the technical side, they will look at whether your projects involve systematic work aimed at generating new knowledge, developing new products, processes or services, or significantly improving existing solutions. Routine improvements, standard software implementation, ordinary quality control or purely commercial activities are generally not accepted as R&D. On the financial side, the authority will verify that only eligible costs are included, that they are directly linked to the R&D activities, and that they have not been claimed twice under different schemes.

You may be asked to submit project plans, technical specifications, test protocols, meeting notes, time sheets, contracts with external consultants, and accounting records. For salary costs, Skattestyrelsen often expects documentation showing how many hours each employee spent on R&D tasks, their role in the project and the wage basis used in the calculation. For external costs, invoices and contracts should clearly indicate the R&D nature of the work performed. The more precise and consistent your documentation, the smoother the audit process will be.

In some cases, Skattestyrelsen may request a meeting, either online or at your premises, to discuss the projects in more detail. This is an opportunity to clarify the scientific or technological uncertainties you faced, the experiments or development steps you carried out, and the results achieved. It is important that the people who were actually involved in the R&D work, such as project managers or technical leads, are available to answer questions and explain the practical aspects of the projects in clear, non‑marketing language.

An audit can have several outcomes. If Skattestyrelsen accepts your explanations and documentation, your R&D tax relief will be confirmed without changes. If they find that some activities do not meet the R&D criteria or that certain costs are not eligible, they may reduce the amount of your deduction, credit or refund. This can result in additional tax to be paid, plus interest on the underpaid tax. In more serious cases, where the authority believes that the claim was made on the basis of gross negligence or intentional misstatement, penalties may be imposed as a percentage of the additional tax.

You have the right to respond to Skattestyrelsen’s preliminary assessment before a final decision is made. If you disagree with the outcome, you can submit further documentation or arguments, and ultimately appeal the decision through the formal complaint channels. However, appeals can be time‑consuming, so it is usually more efficient to ensure that your initial claim is well‑documented and that you cooperate constructively during the audit.

The best way to prepare for a potential audit is to build compliance into your R&D processes from the start. This means clearly defining which projects you treat as R&D, documenting the objectives, uncertainties and development steps, tracking time spent by employees on R&D tasks, and keeping your accounting records aligned with your technical documentation. When your internal records are consistent and up to date, responding to an audit request becomes a matter of compiling existing information rather than recreating it under time pressure.

For Danish businesses, especially start‑ups and SMEs, R&D tax relief can significantly improve cash flow, but it also comes with responsibility. Being prepared for an audit, understanding the expectations of Skattestyrelsen and maintaining robust documentation will help you protect the value of your R&D incentives and reduce the risk of costly corrections in the future.

Future of R&D Tax Incentives in Denmark and Potential Updates

The Danish R&D tax incentive framework is expected to remain a central tool for supporting innovation, but several trends suggest that the rules, rates and practical requirements may continue to evolve. For businesses planning research and development activities over the coming years, it is important to understand both the current structure of the regime and the directions in which policymakers are likely to move.

At present, Danish companies can obtain enhanced tax relief for eligible R&D costs through increased deductions and, for loss-making businesses, a cash refund of a portion of the tax value of their R&D expenditure. The political focus on productivity, green transition and digitalisation makes it likely that R&D incentives will continue to be protected and potentially refined, rather than reduced or abolished. However, this does not mean that the rules will stay static.

One area where change is likely is the definition and documentation of qualifying R&D activities. As technologies such as artificial intelligence, advanced data analytics, life sciences and clean-tech solutions develop, the tax authorities may issue more detailed guidance on how software development, algorithm training, prototype testing or pilot projects should be treated for tax purposes. This could lead to clearer boundaries between routine IT or engineering work and genuine R&D, with a stronger emphasis on demonstrating technological uncertainty, systematic experimentation and measurable advancement.

Another potential development concerns the level of support and the interaction between deductions and refunds. Policymakers may adjust the percentage of R&D costs that can be uplifted for tax purposes or refine the rules for converting tax losses into cash refunds, particularly for start-ups and small and medium-sized enterprises. Any such changes are likely to balance two objectives: keeping Denmark attractive for high-value R&D investments and maintaining a predictable, sustainable corporate tax base.

In parallel, the Danish tax authorities are expected to continue strengthening compliance and control mechanisms. Digitalisation of tax reporting, increased use of data analytics and more targeted reviews of R&D claims may become more common. This could mean more frequent requests for technical project descriptions, time records, cost breakdowns and evidence of project governance. While this may increase the administrative burden, it also offers an opportunity for businesses that maintain robust documentation to secure their benefits with greater certainty.

International developments are also likely to influence the future of Danish R&D tax incentives. Global initiatives on minimum corporate taxation and the ongoing competition among EU and OECD countries to attract innovative investment may encourage Denmark to fine-tune its regime. This could include aligning certain definitions with international standards, adjusting incentives to remain competitive with neighbouring countries, or introducing targeted enhancements for specific sectors such as green energy, life sciences or advanced manufacturing.

For Danish businesses, the most practical implication is the need to treat R&D tax relief as a strategic, forward-looking element of tax planning rather than a one-off opportunity. Companies should monitor legislative proposals, guidance from the Danish tax authorities and political signals related to innovation policy. It is also advisable to design internal processes that can adapt quickly to new documentation requirements, updated definitions of eligible costs or revised calculation methods.

Although the exact shape of future reforms cannot be predicted, the direction is relatively clear: R&D tax incentives in Denmark are likely to remain a key instrument for promoting innovation, but with increasing emphasis on transparency, targeted support and alignment with broader economic and environmental goals. Businesses that invest in understanding the rules, building strong evidence for their R&D activities and integrating tax considerations into their project planning will be best positioned to benefit from any future updates to the system.