Key Documents Required for Registering a Sole Proprietorship in Denmark

Starting a business can be an exciting journey, especially in Denmark, known for its supportive entrepreneurial environment. Among the various business structures, a sole proprietorship is often favored due to its simplicity and minimal regulatory burden. Understanding the necessary documentation for setting up a sole proprietorship in Denmark is crucial for entrepreneurs looking to embark on this venture. This comprehensive article will outline the key documents required for registering a sole proprietorship in Denmark and discuss the procedures involved.

What is a Sole Proprietorship?

A sole proprietorship is a type of business owned and operated by a single individual. In Denmark, it is a popular choice for small business owners and freelancers due to its simplicity concerning taxes and regulations. Unlike other business structures, a sole proprietorship does not require substantial capital investment or complex paperwork for formation.

Advantages of Registering a Sole Proprietorship

There are several advantages associated with establishing a sole proprietorship in Denmark:

1. Simplicity: The registration process is straightforward, making it accessible for new entrepreneurs.

2. Cost-effective: Minimal initial costs are involved compared to other business formats.

3. Complete control: As the sole owner, you have full decision-making authority over your business operations.

Tax Benefits: Income is reported on the owner's personal tax return, simplifying the tax process.

5. Flexibility: The owner has the freedom to adapt the business structure based on changing needs.

While these benefits make sole proprietorships appealing, it is essential to understand the documentation required for registration.

Essential Documents for Registering a Sole Proprietorship in Denmark

When considering the establishment of a sole proprietorship in Denmark, several key documents must be prepared and submitted to the Danish Business Authority (Erhvervsstyrelsen). The primary documents required include:

1. Personal Identification

A valid personal identification document is a fundamental requirement. This could be:

- Danish National Identification Card: For Danish citizens, this card serves as a primary form of identification.

- Passport: Non-Danish citizens may use their passport as identification.

Having a valid ID helps verify your identity and your eligibility to start a business in Denmark.

2. CPR Number

Before proceeding with the registration process, you need a personal registration number, known as a CPR number (Central Person Register number). This number is used for identification and is essential for tax purposes. If you do not already have a CPR number, you can apply for one through your local municipality office.

3. Business Name Registration

Choosing an appropriate name for your sole proprietorship is critical. The business name must be unique and distinguishable from existing businesses. To ensure compliance, you need to check the Danish Business Authority's name register before finalizing your choice.

Once a suitable name is selected, you will need to register this name as part of the registration process.

4. Description of Business Activities

Providing a clear description of the business activities is another important requirement. This document should outline:

- The nature of the business

- The intended market

- Products or services offered

A well-defined business description not only serves the registration process but also helps clarify your business goals.

5. Proof of Address

For the registration, you must provide proof of your business address. This can be a utility bill, lease agreement, or any official document that displays your name and the business address. Ensuring your proof of address reflects the location from where the business will operate is essential.

6. Registration Form

Completing the registration form is a crucial step in the process. The form requires you to input:

- Personal details

- Business name

- Business address

- Description of business activities

This form can often be completed online through the Danish Business Authority's online portal.

7. VAT Registration (if applicable)

If you expect your business to generate taxable sales of more than DKK 50,000 within a 12-month period, you will need to register for VAT (Value Added Tax). Should this apply to your business, you must submit a VAT registration form along with your other documents.

Include:

- Your business details

- Expected turnover

- Description of your goods or services

Registration for VAT is essential as it allows you to charge VAT on your sales and reclaim VAT on your purchases.

Steps to Register a Sole Proprietorship in Denmark

Once you have gathered the necessary documents, the next step is to proceed with the registration, as detailed below:

Step 1: Prepare Your Documents

Ensure all documents are accurate and complete. It is advisable to have both digital and physical copies of your documents readily available for submission.

Step 2: Access the Online Registration Portal

Navigate to the Danish Business Authority's official website and access the online registration platform. Specific procedures may vary depending on changes or updates on the website.

Step 3: Complete the Registration Form

Fill out the registration form with the required details. Ensure you double-check for accuracy in your personal identification, business name, and descriptions to avoid delays.

Step 4: Upload Required Documents

Once the registration form is completed, you will be asked to upload and submit the previously prepared documents. This includes your identification, proof of address, and any necessary VAT registration forms.

Step 5: Pay the Registration Fee

After submitting your application, a registration fee is required. The fee may vary depending on the registration method (online or physical). Payment details will be provided on the registration platform.

Step 6: Await Approval

After submission, the Danish Business Authority will review your application. If all documents are in order, you will receive an official confirmation of your registration as a sole proprietor. Processing times can vary but typically range from a few days to a couple of weeks.

Understanding Tax Responsibilities as a Sole Proprietor

Once registered, it's crucial to understand your tax obligations as a sole proprietor. In Denmark, as a sole proprietorship is not a separate legal entity, the income generated by your business is treated as personal income. Here are the key aspects:

Income Tax

You are required to report your business income on your personal tax return, which means that personal income tax rates will apply to your business profits. Understanding the tax leagues and how to file appropriately is essential for compliance.

VAT Responsibilities

If registered for VAT, you need to ensure compliance by:

- Maintaining correct records of sales and purchases.

- Filing periodic VAT returns to report and pay VAT collected from customers.

Keeping meticulous records will simplify the process and ensure that you meet all obligations.

Ongoing Compliance and Considerations

As a business owner, there are essential compliance matters to keep in mind:

1. Updating Business Information

If there are any changes to your business address, activities, or business name, you must update your registration with the Danish Business Authority promptly.

2. Record-Keeping

Maintain detailed records of income and expenditures to ensure proper reporting during tax season. Accurate bookkeeping is fundamental for you, as it allows for efficient tax filing and business management.

3. Business Insurance

Consider purchasing business insurance to protect your sole proprietorship from potential liabilities. This can be invaluable in cases of accidents, theft, or unforeseen events.

4. Networking and Support

Engage with local business networks and organizations that support entrepreneurs. Networking can provide invaluable resources, mentorship, and guidance as you grow your business.

5. Future Growth Strategies

Always be on the lookout for opportunities that could lead to growth. Whether it's considering hiring employees, expanding your product range, or even transitioning to a limited liability company (ApS), planning ahead is key.

Potential Challenges When Starting a Sole Proprietorship in Denmark

While establishing a sole proprietorship is generally straightforward, it is not without its challenges. Awareness of common hurdles can help you navigate them effectively:

1. Limited Funding Opportunities

As a sole proprietor, accessing funding might be more challenging compared to larger business structures. Investors might hesitate to invest in a business with unlimited liability.

2. Personal Liability

One significant disadvantage is that as a sole proprietor, you are personally liable for all business debts and obligations. This means that personal assets could be at risk in the event of business failure.

3. Balancing Work and Personal Life

The responsibility of running the entire business can lead to work-life balance challenges. Establish clear boundaries to manage both adequately.

4. Limited Growth Potential

While a sole proprietorship is easier to manage, it may face limitations in scaling due to the lack of capital and resource pooling associated with partnerships or corporations.

Legal Requirements and Eligibility Criteria for Sole Proprietors in Denmark

Before you can register a sole proprietorship (enkeltmandsvirksomhed) in Denmark, you must meet several legal requirements and basic eligibility criteria. Understanding these conditions in advance helps you avoid delays with the Danish Business Authority (Erhvervsstyrelsen) and the Danish Tax Agency (Skattestyrelsen).

Who Can Register a Sole Proprietorship in Denmark?

A sole proprietorship in Denmark can be registered by a single individual who carries full personal responsibility for the business. You can register if you:

• Are at least 18 years old, or
• Are 15–17 years old and have written consent from your parents/guardians, and in some cases approval from the Danish authorities

You do not need Danish citizenship, but you must have a legal right to reside and work in Denmark. This usually means:

• For EU/EEA and Swiss citizens: a valid registration certificate (opholdsbevis) if you stay longer than three months
• For non-EU citizens: a valid residence and work permit that allows self-employment or business activity

If you live abroad, you can in many cases still register a Danish sole proprietorship, but you must be able to obtain the necessary identification (such as a CPR number or a tax number) and comply with Danish tax rules.

Identification and Registration Numbers

To register a sole proprietorship, you normally need a Danish civil registration number (CPR). This is required to obtain digital identification (MitID) and to access the online registration system at virk.dk.

Once your business is registered, it receives a Central Business Register number (CVR). The CVR number is your official business ID used for invoicing, contracts, VAT (moms) reporting and communication with public authorities.

Requirement to Use Digital Identification (MitID)

Most registrations and communication with Danish authorities are digital. As a sole proprietor you are expected to:

• Have a personal MitID to log in to virk.dk and skat.dk
• Activate Digital Post (e-Boks or another approved solution) to receive official letters from authorities

Without MitID and Digital Post, you risk missing important deadlines related to tax, VAT and reporting obligations.

Business Purpose and Commercial Activity

Your sole proprietorship must have a genuine commercial purpose. This means the activity should be aimed at generating profit and carried out on a continuous basis. Typical examples include consulting, freelance services, online shops, crafts, small retail or hospitality services.

Hobby activities that are not intended to make a profit or are carried out only occasionally usually do not qualify as a business. In such cases, income is often taxed as personal income without formal business registration. If in doubt, it is advisable to clarify the status with an accountant or the Danish Tax Agency.

Personal Liability and Risk

By choosing a sole proprietorship, you accept unlimited personal liability. There is no legal separation between your private assets and your business assets. This means:

• You are personally liable for all business debts and obligations
• Creditors can, in principle, claim against your private assets if the business cannot pay its debts
• You should carefully consider risk, insurance and financing before starting

There is no legal minimum capital requirement for a sole proprietorship, but you should ensure you have sufficient funds to cover start-up costs, running expenses and tax/VAT payments.

Residence, Address and Contact Information

To register a sole proprietorship, you must provide a valid business address in Denmark. This can be:

• Your home address (home office), if permitted by local zoning rules and your rental or ownership agreement
• A rented office, shop or workshop
• A co-working space or virtual office, provided it meets legal requirements for a business address

You must also provide up-to-date contact details, including email and phone number, so authorities and customers can reach you. Any changes to your business address or contact information must be reported to the Danish Business Authority.

Name Requirements and Legal Form

Your business name must comply with Danish rules on company names. In practice this means:

• The name must be distinguishable from existing registered business names
• The name must not be misleading, offensive or violate trademark rights
• You may use your own personal name, a trade name, or a combination of both

A sole proprietorship is not a separate legal entity, so you do not add “ApS” or “A/S” to the name. Those endings are reserved for limited liability companies.

Tax and VAT Eligibility

As a sole proprietor you are taxed personally on the business profit. You must:

• Register with the Danish Tax Agency for income tax purposes when you start your business
• Pay income tax and labour market contribution (AM-bidrag) on your profit according to current Danish tax rules and brackets

VAT registration becomes mandatory when your taxable turnover exceeds 50,000 DKK over a 12‑month period. You may also choose voluntary VAT registration below this threshold if it is beneficial for your business model. Once registered for VAT, you must charge 25% VAT on most goods and services and report and pay VAT within the deadlines applicable to your reporting frequency.

Compliance with Danish and EU Regulations

Depending on your industry, you may have to meet additional legal requirements before or immediately after registration. Typical examples include:

• Sector-specific permits (e.g. food, health, transport, financial services)
• Compliance with Danish labour law if you hire employees, including registration as an employer and payment of employer contributions
• Compliance with EU and Danish data protection rules (GDPR) if you process personal data

Failure to meet these requirements can lead to fines, loss of permits or forced closure of the business, so it is important to clarify any sector-specific rules early in the planning phase.

Record-Keeping and Accounting Obligations

Even though a sole proprietorship is the simplest business form in Denmark, you are still required to keep proper books and records. As a minimum you must:

• Record all income and expenses in a systematic way
• Keep invoices, receipts, bank statements and contracts for at least five years
• Be able to document VAT calculations and tax returns if the authorities request it

While you are not legally required to use an accountant, professional bookkeeping support can help you meet all legal requirements, optimise your tax situation and avoid errors that may result in penalties or additional tax assessments.

Choosing a Business Name and Checking Name Availability with the Danish Business Authority (Erhvervsstyrelsen)

Before you can register your sole proprietorship in Denmark, you need a unique and compliant business name. The name is registered with the Danish Business Authority (Erhvervsstyrelsen) through the Central Business Register (CVR), and it will appear on invoices, contracts and in public records. Choosing the right name and checking its availability early will help you avoid delays and potential legal conflicts.

Basic rules for choosing a business name in Denmark

Your business name must clearly identify your company and comply with Danish naming rules. In practice, this means:

• The name must be unique and distinguishable from existing registered names in the CVR.
• It must not be misleading about the nature of your business, its size or legal form.
• You cannot use protected words such as “A/S” or “ApS” if you are registering a sole proprietorship, as these refer to other legal forms.
• The name cannot be offensive, contrary to public order or good practice.
• It should use letters and characters that can be registered in Danish public systems (standard Latin alphabet and Danish letters æ, ø, å are accepted).

Many sole proprietors choose to include their personal name together with a descriptive element, for example “Anna Jensen Consulting” or “Lars Nielsen Webdesign”. This makes it easier to get a unique name approved and strengthens your personal brand.

Checking name availability with Erhvervsstyrelsen

Before you submit your registration, you should check whether your desired name is already in use. You can do this by searching the Central Business Register (CVR) online, where all registered businesses in Denmark are listed. When checking availability, look for:

• Exact matches of your proposed name
• Very similar names in the same or related industries
• Names that could cause confusion for customers because of spelling or pronunciation

If a very similar name already exists, Erhvervsstyrelsen may ask you to adjust your name to avoid confusion. Having one or two alternative names ready can save time if your first choice is rejected.

Trade names and multiple business names

As a sole proprietor, you can register a main business name and, in many cases, additional trade names (secondary names) under the same CVR number. This is useful if you offer different types of services or operate several brands. Each trade name must also be unique and comply with the same rules as your main name.

Domain names, trademarks and brand protection

From a branding and SEO perspective, it is wise to check domain name availability at the same time as you check the CVR register. Ideally, your business name, domain name and social media handles should be consistent to make it easier for customers to find you online.

If you want stronger protection for your brand, you can consider registering a trademark, either in Denmark or at EU level. A registered trademark can give you exclusive rights to use a name or logo for specific goods and services, which is important if you plan to grow or operate in competitive markets.

Practical tips for a strong and compliant business name

When choosing your name, consider both legal compliance and marketing value:

• Make it easy to spell and pronounce for Danish customers and, if relevant, international clients.
• Avoid very generic names that do not describe what you do; descriptive elements help with online search visibility.
• Check that the name does not unintentionally resemble well-known brands, which could lead to disputes.
• Think long term: choose a name that still fits if you expand your services in the future.

Once you have confirmed that your chosen name is available and compliant, you can use it in your registration with Erhvervsstyrelsen and in all subsequent tax, VAT and banking procedures. A carefully selected name not only meets legal requirements but also supports your marketing, credibility and visibility as a sole proprietor in Denmark.

Digital Identification: NemID/MitID Requirements for Business Registration

To register a sole proprietorship in Denmark, you must be able to identify yourself digitally using the national digital ID system. Until recently this was NemID, but it has now been fully replaced by MitID. In practice, this means that if you want to register your business with the Danish Business Authority (Erhvervsstyrelsen) and obtain a CVR number, you need an active MitID.

MitID is used whenever you log in to the online self-service system on Virk.dk to complete your business registration, register for VAT (moms), or manage changes to your company details. Without MitID, you cannot complete the online registration process for a sole proprietorship.

Who needs MitID for business registration?

The person who will be the owner of the sole proprietorship must have MitID in their own name. A sole proprietorship is not a separate legal entity, so the business is directly linked to your CPR number and your personal MitID. You cannot “share” MitID or use someone else’s credentials to register or manage your business.

If you are a foreign resident planning to run a sole proprietorship in Denmark, you generally need:

• a Danish CPR number (civil registration number)
• MitID linked to that CPR number
• in many cases, a registered address in Denmark

Without a CPR number, obtaining MitID and registering a sole proprietorship online is normally not possible. In such cases, you may need to consider alternative structures or obtain residence and registration in Denmark first.

How MitID is used during registration

When you register your sole proprietorship on Virk.dk, you will be asked to log in with MitID. This login serves as your legally binding signature. You will use MitID to:

• access the registration form for a new sole proprietorship
• confirm your personal details and business information
• submit the registration and receive confirmation of your CVR number
• later register for VAT, payroll tax or other schemes if required

All subsequent changes to your business, such as updating your address, registering additional activities or deregistering the company, are also handled via MitID login.

MitID for business vs. personal MitID

For a sole proprietorship, your personal MitID is normally sufficient to register and manage the business. However, you can also set up business roles and access rights if you want an accountant or bookkeeper to handle filings on your behalf. In that case, you keep your own MitID, and your advisor uses their MitID with appropriate authorisations granted through the relevant public systems.

Practical steps to ensure you are ready

Before you start the online registration of your sole proprietorship, make sure that:

• your MitID is active and working on your device (app or code reader)
• you know your MitID user ID and have access to the authentication method you use
• your personal information registered with MitID (name, address) is up to date

If you experience problems logging in with MitID during business registration, you usually need to resolve these with your bank or the official MitID support before you can continue. The Danish Business Authority cannot complete the registration for you without a valid digital ID.

Because MitID is central to all communication with Danish authorities, including SKAT (the Danish Tax Agency), having a stable and secure MitID setup is essential not only for registering your sole proprietorship, but also for ongoing tax filings, VAT returns and other mandatory reporting.

Documentation Needed for Registration with the Danish Business Authority (CVR Registration)

To register your sole proprietorship with the Danish Business Authority and obtain a CVR number, you must submit specific information and documents through the online registration system at Virk.dk. The process is fully digital and requires that you can log in with MitID. Below you will find the key details and documentation you should have ready before you start the CVR registration.

Personal identification and digital access

As a sole proprietor, you and the business are legally the same person, so your personal details are central to the registration. You will typically need:

• Your full legal name, CPR number and contact details (address, phone, email)
• MitID for secure login and signing of the registration
• If you are not a Danish citizen but are resident in Denmark: your CPR number and MitID associated with your residence
• If you live abroad: documentation of identity and foreign address details; in many cases you will need a Danish representative or special setup to complete the registration digitally

Business name and basic business information

During CVR registration you must provide clear information about your sole proprietorship. Prepare:

• Business name (company name) – this can be your personal name or a separate trade name, as long as it is not misleading or already in use
• Secondary names (if any) – for example, if you plan to operate under different brands
• Business address in Denmark – this may be your home address or a rented office; the address must be valid for official mail
• Contact email and phone number for the business
• Start date of business activities – the date from which you are considered to be carrying on business for tax and VAT purposes

Industry classification (NACE code)

You must select the main activity of your business using the official Danish industry classification (NACE/DB07 code). To complete this part of the registration, you should:

• Have a clear description of your main activity (for example: IT consulting, online retail, construction services, hairdressing)
• Identify the most accurate NACE code that matches your primary source of revenue

Choosing the correct activity code is important because it can affect which rules, statistics and potential sector-specific obligations apply to your business.

Tax and VAT (moms) related information

When you register for a CVR number, you can at the same time register for VAT and as an employer if relevant. For this part, you should be ready to provide:

• Whether you expect to exceed the Danish VAT registration threshold of DKK 50,000 in turnover within 12 consecutive months
• If you choose to register voluntarily for VAT even below the threshold, the expected annual turnover and type of sales (goods, services, or both)
• Whether you will have employees and, if so, the expected first employment date and estimated payroll

For most sole proprietors providing services or selling goods in Denmark, VAT registration becomes mandatory once the DKK 50,000 threshold is reached or expected to be reached. Registering correctly at the CVR stage helps avoid later corrections and penalties.

Ownership, management and representation details

Although a sole proprietorship has only one owner, the Danish Business Authority still requires clear information about who is responsible for the business. You must provide:

• Your role as owner and manager of the business
• Details of any person who has power of attorney or is authorised to sign on behalf of the business (if applicable)
• Information about any professional representative (for example, an accountant) who may receive digital mail on behalf of the business, if you choose to set this up

Business address documentation

In many cases you will not need to upload documents for your address during the online CVR registration, but you must be able to document it if the authorities request proof. Depending on your situation, relevant documentation may include:

• Lease agreement for an office, shop or warehouse
• Written permission from your landlord or housing association if you operate from a rented home
• Ownership documentation or property tax statement if you operate from your own home

The address you register will be used for public registers and official correspondence, so it must be accurate and kept up to date.

Special requirements for foreign owners

If you are a foreign national without a Danish CPR number, or if you live outside Denmark, additional documentation may be required to complete CVR registration. This can include:

• Copy of passport or national ID card
• Documentation of foreign address
• Any Danish tax identification number (if previously issued)
• In some cases, documentation for a Danish representative or contact person

The exact requirements depend on your residence status and whether you already have a relationship with Danish authorities. It is often advisable to consult an accountant or advisor familiar with cross-border setups before starting the registration.

Digital mail and ongoing reporting

When you obtain a CVR number, your sole proprietorship is automatically set up to receive Digital Post from Danish authorities. You should therefore ensure that:

• You have access to a digital mailbox linked to your CVR number
• You regularly check messages from the Danish Tax Agency (Skattestyrelsen) and the Danish Business Authority

Although not a document in the traditional sense, access to Digital Post is a practical requirement for staying compliant with reporting deadlines and official communication after CVR registration.

Having all of this information and documentation prepared before you start the online process will make your CVR registration smoother, reduce the risk of errors and help ensure that your Danish sole proprietorship is correctly set up from day one.

Documents Required for VAT (Moms) Registration and When It Is Mandatory

In Denmark, VAT (moms) registration is a key step for many sole proprietors. Understanding exactly when VAT registration becomes mandatory and which documents you need will help you avoid penalties and ensure a smooth start for your business.

When VAT registration is mandatory for a sole proprietorship

You must register for VAT with the Danish Business Authority (Erhvervsstyrelsen) and the Danish Tax Agency (Skattestyrelsen) when:

• Your expected taxable turnover exceeds DKK 50,000 within a continuous 12‑month period, or
• You start a business where it is clear from the outset that turnover will exceed DKK 50,000 within the first 12 months.

The DKK 50,000 threshold applies to most businesses supplying goods or services subject to Danish VAT. If you sell only VAT‑exempt services (for example certain financial or health services), you normally do not register for VAT, but you may still have other tax and reporting obligations.

Once you are required to register, you must complete your VAT registration no later than 8 days before you start charging VAT or begin activities that are subject to VAT.

Key information and documents needed for VAT registration

VAT registration is done digitally via Virk.dk using MitID. In most cases you do not upload many separate files; instead, you provide detailed information in online forms. However, you should have the following information and documents ready:

• Digital ID (MitID) linked to you as a private person, allowing you to log in and register your sole proprietorship for VAT.
• CVR number for your sole proprietorship (you must first register the business entity before adding VAT registration).
• Personal identification details:
  • Full name
  • CPR number
  • Address and contact details (phone, email)
• Business details:
  • Registered business name
  • Business address (can be home address if allowed by local rules)
  • Description of your main business activity
  • Relevant industry code (branchekode/NACE code) describing your activity
• Turnover estimates:
  • Expected annual turnover (taxable sales) in Denmark
  • Expected share of sales to private customers vs. businesses
  • Any expected cross‑border sales within the EU or outside the EU
• Start date for VAT‑liable activities, i.e. the date from which you will begin making taxable supplies.
• Bank account details:
  • Danish bank account (business or private account used for business) for tax payments and possible VAT refunds
  • IBAN and BIC/SWIFT if relevant for international transfers

In some cases, the authorities may request additional documentation to verify your information, such as:

• Copy of your lease agreement or proof of business address
• Contracts or order confirmations showing expected turnover
• Invoices or offers already issued to customers

Special situations affecting VAT documentation

Depending on your business model, you may need to provide extra information during registration or shortly afterwards:

• Import and export of goods: If you import or export goods, you may need an EORI number and must indicate this when registering. Keep documentation of your expected trade partners and typical transaction values.
• Digital services and online sales: If you sell digital services or goods to consumers in other EU countries, you may need to use special VAT schemes (for example One Stop Shop, OSS). Prepare information about which countries you will sell to and the type of services or goods.
• Distance selling and platforms: If you sell via online platforms or marketplaces, keep agreements or terms with the platform, as the tax authorities may ask for them to clarify who is responsible for charging VAT.

After registration: ongoing VAT obligations and records

Once registered, you must charge Danish VAT on your taxable sales at the standard rate of 25%, unless a reduced or zero rate applies under specific rules. You are also required to:

• Submit VAT returns (momsangivelse) via TastSelv Erhverv within the deadlines assigned to your business (typically quarterly or half‑yearly for small sole proprietors).
• Keep proper accounting records and documentation for all sales and purchases, including:
  • Sequentially numbered invoices and credit notes
  • Receipts and purchase invoices showing VAT separately
  • Bank statements and payment confirmations
  • Contracts and agreements with customers and suppliers
• Store accounting and VAT documentation for at least 5 years, as required by Danish bookkeeping rules.

Maintaining accurate documentation from the start makes VAT registration easier and reduces the risk of errors during future tax audits. If you are unsure about your turnover estimates, VAT liability, or which documents are necessary in your specific case, it is advisable to consult a Danish accountant or bookkeeper experienced in working with sole proprietors.

Banking Requirements: Opening a Business Bank Account and Required Identification

Opening a dedicated business bank account is not legally mandatory for a Danish sole proprietorship, but in practice it is strongly recommended and often required by banks for compliance and anti‑money‑laundering (AML) purposes. A separate account makes it easier to track income and expenses, prepare VAT (moms) returns and annual tax filings, and demonstrate to the Danish Tax Agency (Skattestyrelsen) that your records are accurate.

Most Danish banks will ask you to complete a formal onboarding process for business customers, even if you are a sole proprietor operating under your own CPR number. Expect the bank to perform a detailed “Know Your Customer” (KYC) and AML review before the account is approved. This process can take from a few days to several weeks, depending on the bank, your industry and whether you have international transactions.

Types of accounts typically used by sole proprietors

As a sole proprietor, you will usually work with:

• a current account for day‑to‑day business payments and receipts
• a separate tax/VAT savings account, where you set aside money for income tax, AM‑bidrag and VAT
• optionally, a card (debit or credit) linked to the business account for purchases

Some banks also offer packages tailored to small businesses, which may include online banking, payment solutions (e.g. card terminals or online acquiring), and integration with accounting software.

Core identification and registration documents

To open a business bank account in Denmark, you must be able to identify yourself digitally and prove that your business is properly registered. In most cases, banks will require:

• Valid personal identification – typically a Danish passport or national ID card. If you are an EU/EEA citizen without a Danish passport, a valid national ID card or passport from your home country is usually accepted. Non‑EU citizens are generally asked for a passport and valid Danish residence and work permit.
• CPR number – your Danish civil registration number, used to verify your identity and tax status.
• MitID – your digital ID for secure login and signing of agreements. Most banks require you to sign account contracts and online banking terms using MitID.
• CVR number – the business registration number issued by the Danish Business Authority (Erhvervsstyrelsen). Even though a sole proprietorship is not a separate legal entity from you personally, banks usually insist on a CVR number to classify the account as business‑related.
• Proof of business registration – a printout or PDF from the Central Business Register (CVR) showing your business name, CVR number, business form (enkeltmandsvirksomhed), address and registered activities (branchekode/NACE code).

Information about your business activities

Under Danish AML rules, banks must understand how your business operates and where your money comes from. You should be prepared to provide:

• a short description of your business model, main products or services and target customers
• your expected annual turnover (revenue) and the typical size of individual payments
• whether you will trade mainly in Denmark, within the EU/EEA or with countries outside the EU/EEA
• information on how customers pay you (bank transfer, card payments, MobilePay, online platforms, cash)
• if relevant, details of any high‑risk activities (for example, dealing with cryptoassets, large cash transactions or customers in high‑risk jurisdictions)

Many banks will ask you to complete a standard AML questionnaire. Answering these questions clearly and consistently with your CVR registration and business plan helps avoid delays.

Proof of address and business premises

Banks must verify both your private address and, where applicable, your business address. Depending on your setup, you may need:

• documentation of your personal address in Denmark, such as your registration in the Danish Civil Registration System (Folkeregisteret)
• if you use a separate business address, a lease agreement, sublease contract or written permission from the owner
• if you run the business from home, confirmation that your home address is registered as your business address in the CVR register
• if you use a virtual office or coworking space, the service agreement and any documentation that the address can be used for business registration

Additional documentation some banks may request

Depending on your risk profile and industry, the bank may ask for further documents, such as:

• a simple business plan or budget, especially if you expect high turnover or rapid growth
• copies of important contracts with key customers or suppliers
• invoices or offers that show the type of work you will perform
• for regulated activities (for example, financial services, certain health services or transport), copies of relevant licenses or permits
• if you have recently moved to Denmark, proof of previous business activities or employment abroad

These documents help the bank assess whether your expected transactions match your stated business model and reduce the risk of your account being blocked later due to AML concerns.

Practical tips for a smooth account opening

Before contacting a bank, make sure you have already registered your sole proprietorship with Erhvervsstyrelsen and obtained your CVR number. Prepare digital copies (PDF or clear photos) of your ID, residence documents, CVR extract, address documentation and any relevant contracts. Many banks allow you to start the application online, but may still require a video call or in‑person meeting to verify your identity.

Because Danish banks apply strict compliance rules, some applications are rejected if the bank considers the risk too high or the documentation insufficient. If this happens, it can be helpful to:

• ask for a clear explanation of what information is missing or which risk factors concern the bank
• contact another bank with a complete documentation package and a concise written description of your business
• seek help from an accountant or advisor who regularly assists small businesses with bank onboarding

Once your account is open, keep your bank informed about major changes in your business model, turnover or international activities. This reduces the chance of unexpected account reviews or temporary blocks and helps maintain a stable banking relationship as your sole proprietorship grows.

Proof of Business Address and Lease or Home-Office Documentation

When registering a sole proprietorship in Denmark, you must provide a valid business address. This address is used by the Danish Business Authority (Erhvervsstyrelsen), SKAT and other public authorities for official correspondence and for determining certain legal and tax obligations. The address can be a leased office, a co-working space or your home, as long as it meets Danish legal requirements.

Using a commercial lease as your business address

If you rent an office, shop, warehouse or other commercial premises, you will typically need to document your right to use that address. In practice, this usually means providing:

• a signed lease agreement showing the address, your name and the start date of the lease
• any addendums confirming that business activities are allowed on the premises
• contact details of the landlord or property administrator

The lease should clearly state that the premises can be used for commercial purposes. If the contract is primarily for residential use, you may need written permission from the landlord or housing association to register a business at that address.

Registering a home office (virksomhed på bopælsadressen)

Many sole proprietors in Denmark run their business from home. This is allowed, but you must ensure that your municipality’s zoning rules (lokalplaner) and your housing regulations permit business use of the property. When using your home as your business address, you should be prepared to provide:

• your private address as registered in the Danish Civil Registration System (CPR)
• proof that you live at the address, for example a digital registration extract (folkeregisteradresse) or a recent official letter from a public authority
• if you are renting: confirmation from your landlord or housing association that business activity is allowed in the apartment or house, if required by the tenancy agreement

In many cases, especially for small consulting or online businesses with no customer visits or storage of goods, a home office is unproblematic. However, if your activity involves customer traffic, noise, storage of inventory or visible signage, the municipality may require additional permits or may limit your use of the home for business purposes.

Co-working spaces and virtual offices

If you use a co-working space or a serviced office, you can often register that address as your business address, provided the provider allows it. Typical documentation includes:

• a membership or service agreement showing your name and the address
• a confirmation letter or email from the provider stating that you may use the address for CVR registration and official mail

Some providers offer “virtual office” services with mail handling. These can be used as a business address if they comply with Danish rules on identification and anti–money laundering. You should ensure that the provider can verify your identity and that you can receive official letters at that address.

Requirements for the address used in CVR registration

When you register your sole proprietorship with the Danish Business Authority, you must enter a physical address in Denmark. A post office box alone is not sufficient as the main business address. The address must:

• be a real, physical location where you can be contacted
• be correctly registered in public address registers (no informal or incomplete addresses)
• match the documentation you can present (lease, home address registration, service agreement)

If you change your business address later, you are required to update it in the Central Business Register (CVR) without undue delay. Failing to keep your address up to date can lead to missed deadlines, penalties and problems with tax authorities or banks.

Special considerations for foreign residents and cross-border situations

If you live outside Denmark but register a sole proprietorship with a Danish CVR number, you must still provide a Danish business address. In such cases, you will typically need:

• a lease or service agreement for premises or a business address in Denmark
• documentation of your foreign home address for tax and identification purposes

Tax residency and permanent establishment rules can be complex in cross-border situations, so it is advisable to obtain professional advice to ensure that your business address and activity are correctly structured for Danish and foreign tax law.

What authorities look for in address documentation

In practice, Danish authorities focus on whether the address is genuine, traceable and suitable for the type of business you run. They may question your registration if:

• the address appears to be fictitious or belongs to someone who denies any connection to your business
• the premises are clearly unsuitable for the declared activity (for example, heavy industrial activity in a purely residential apartment)
• there is a mismatch between your registered address and the documentation you provide to banks or other institutions

Keeping clear, updated documentation of your right to use the address helps avoid delays in registration, problems with bank onboarding and potential audits.

Practical tips for documenting your business address

• Keep a digital copy of your lease, home-office permission or co-working agreement in a secure folder.
• Ensure your name or your business name is visible on the mailbox at the registered address so that you receive official mail.
• Update your address promptly in CVR, with your bank and with SKAT whenever you move.
• Review your lease or housing rules before starting the business to confirm that commercial use is allowed.

Proper proof of business address is a relatively simple but essential part of registering a sole proprietorship in Denmark. Having the right documentation ready will make the registration process smoother and help establish your business on a compliant and professional footing from day one.

Industry-Specific Licenses and Permits: Additional Documentation You May Need

Not every sole proprietorship in Denmark can start trading based on the CVR registration alone. Many activities require industry-specific licenses, permits or registrations before you can legally operate or invoice clients. Failing to obtain the correct authorisations can lead to fines, orders to stop business activity and, in serious cases, criminal liability.

Below are the most common sectors where additional documentation is required, together with practical guidance on what to prepare as a sole proprietor.

Food, Restaurants, Cafés and Catering

If your business handles, prepares or sells food or beverages, you must register with the Danish Veterinary and Food Administration (Fødevarestyrelsen) before starting operations. Depending on your activity, you may need:

• Food business registration or approval (for production, serving or wholesale of food)
• Documentation of your food safety management system (HACCP procedures, cleaning schedules, temperature control logs)
• Proof of relevant food hygiene training or certificates for you and any employees
• Lease agreement or documentation for the premises, including layout plans for kitchen and storage areas

Mobile food businesses (food trucks, stalls at markets or festivals) also need registration and must document access to clean water, waste handling and proper cooling or heating equipment.

Healthcare, Wellness and Personal Care Services

Activities that affect health or involve invasive procedures are strictly regulated. Depending on your profession, you may need:

• Authorisation from the Danish Patient Safety Authority (Styrelsen for Patientsikkerhed) for regulated healthcare professions (e.g. doctors, nurses, physiotherapists, chiropractors)
• Proof of education and professional qualifications, such as diplomas and course certificates
• Documentation of clinical guidelines, hygiene procedures and patient record-keeping routines
• Insurance documentation, including professional liability insurance where required

For beauty salons, tattoo studios, piercing, permanent makeup and similar services, you may need to register the premises with the municipality or the Danish Safety Technology Authority (Sikkerhedsstyrelsen) and provide documentation of hygiene procedures, sterilisation equipment and training.

Construction, Electrical, Plumbing and Technical Trades

Many building and installation activities require specific authorisations:

• Electrical installations: authorisation from the Danish Safety Technology Authority and documentation of technical qualifications
• Plumbing, gas and heating installations: relevant authorisations and proof of vocational training and certifications
• Construction work: documentation of professional qualifications, workplace safety procedures and, for larger projects, building permits from the municipality

You must also comply with Danish working environment rules. This often requires written workplace risk assessments (APV), safety instructions and documentation of mandatory safety courses (for example, for scaffolding or asbestos work).

Transport, Taxi and Goods Haulage

If your sole proprietorship involves transporting passengers or goods for payment, you may need:

• Commercial transport licence from the Danish Road Traffic Authority (Færdselsstyrelsen), depending on vehicle type and weight
• Taxi or limousine licence, including documentation of good repute, financial capacity and relevant driving experience
• Vehicle registration documents, insurance policies and inspection reports
• Driving licences with the correct categories for the vehicles you operate

For international transport, additional EU licences and documentation may be required, including proof of professional competence and financial guarantees.

Retail, E‑Commerce and Distance Selling

Most retail and online shops can operate with a standard CVR registration, but certain products are regulated. You may need extra documentation if you sell:

• Alcohol and tobacco: registration for excise duties and compliance with age verification rules
• Pharmaceuticals, medical devices or certain supplements: authorisation from the Danish Medicines Agency (Lægemiddelstyrelsen)
• Fireworks, electrical equipment, toys or cosmetics: conformity documentation, safety declarations and labelling in line with Danish and EU standards

For e‑commerce, you must document compliance with consumer protection rules, including clear terms and conditions, return policies, price transparency and data protection measures for handling customer information and payments.

Financial, Legal and Advisory Services

Some advisory activities are regulated to protect consumers and ensure professional standards. Depending on your services, you may need:

• Registration or authorisation with the Danish Financial Supervisory Authority (Finanstilsynet) for investment advice, insurance brokerage or certain credit-related services
• Membership in a bar association or professional body for legal services, if you present yourself as an attorney
• Anti‑money laundering (AML) procedures and documentation, including customer due diligence (KYC), risk assessments and internal policies

Even if your advisory service is not formally regulated, it is often advisable to maintain written engagement letters, disclaimers and professional liability insurance documentation.

Education, Childcare and Social Services

If you provide services to children, vulnerable persons or operate educational or care facilities, you may need:

• Municipal approval for private daycare, after‑school care or similar services
• Criminal record checks (straffeattest) and child protection certificates for you and any staff
• Documentation of premises meeting safety, fire and health requirements
• Written policies on safeguarding, supervision and emergency procedures

Environmental, Waste and Hazardous Materials

Businesses that generate, transport or treat waste, chemicals or other environmentally sensitive materials must comply with environmental regulations. Typical documentation includes:

• Environmental permits from the municipality or relevant authority for waste handling, emissions or discharges
• Safety data sheets (SDS) for chemicals and hazardous substances
• Written procedures for storage, labelling, transport and disposal of hazardous waste
• Documentation of staff training in environmental and safety regulations

How to Check Which Licenses and Permits You Need

Before you start trading, review your planned activities and check:

• The Danish Business Authority’s (Erhvervsstyrelsen) guidance for your industry
• Your municipality’s website for local permits, zoning rules and opening hours regulations
• Sector‑specific authorities such as Fødevarestyrelsen, Sikkerhedsstyrelsen, Finanstilsynet or Styrelsen for Patientsikkerhed

Keep copies of all approvals, licences, registrations and related correspondence in a dedicated folder, together with renewal dates and conditions. This documentation is often required for inspections, insurance claims and when working with larger corporate clients.

Insurance Documentation Relevant for Sole Proprietors (e.g., Liability, Workers’ Insurance)

Insurance is not only a risk‑management tool for sole proprietors in Denmark, but in some situations it is also a legal or contractual requirement. Having the right documentation ready will make it easier to register your business, cooperate with clients and comply with Danish regulations.

Main types of insurance relevant for sole proprietors

Not every policy is mandatory for every business, but most sole proprietors should at least consider the following types of coverage and related documents:

• Commercial liability insurance (erhvervsansvarsforsikring)
  Protects you if your business causes personal injury or property damage to a third party. It is strongly recommended for consultants, tradespeople, freelancers and any business that interacts with customers or the public at their premises or on‑site.
• Professional indemnity insurance (erhvervs- eller rådgiveransvar)
  Relevant if you provide professional advice or services (e.g. IT, marketing, design, consulting). It covers financial loss suffered by clients due to errors or omissions in your professional work. For some regulated professions, minimum coverage may be required by law or by professional bodies.
• Workers’ compensation insurance (arbejdsskadeforsikring)
  Mandatory if you employ staff in Denmark, including part‑time and temporary employees. It covers work‑related injuries and occupational diseases. If you are a sole proprietor with no employees, this is not legally required, but you can take out voluntary coverage for yourself.
• Occupational injury and health insurance for the owner
  As a self‑employed person, you are not automatically covered by the same arbejdsskade scheme as employees. Voluntary insurance can provide compensation for permanent injury, loss of earning capacity and certain medical costs if you are injured while working.
• Business contents and property insurance
  Covers equipment, inventory, tools, furniture and sometimes your office or workshop against fire, theft, water damage and vandalism. If you run your business from home, you usually need separate business coverage in addition to your private home insurance.
• Cyber and data insurance
  Increasingly relevant if you store customer data, process online payments or provide digital services. It can cover costs related to data breaches, cyber‑attacks, system recovery and certain GDPR‑related liabilities.

When insurance is mandatory for sole proprietors in Denmark

Whether insurance is legally required depends on your business model and industry:

• Employees: If you hire employees, you must take out workers’ compensation insurance with an approved insurance company. You must also pay contributions to the Labour Market Occupational Diseases Fund (AES) via ATP. Documentation of valid coverage is often requested by authorities and can be checked in connection with workplace inspections.
• Regulated professions and licensed activities: Certain sectors (for example, some financial services, real estate, construction trades or transport activities) may require specific insurance as a condition for obtaining or maintaining a licence or authorisation. The exact requirements depend on the specific regulation governing your industry.
• Public tenders and larger contracts: Public authorities and many larger private clients in Denmark routinely require proof of commercial liability insurance and, where relevant, workers’ compensation insurance as part of tender documentation or framework agreements.

Even when not strictly mandatory, many Danish clients expect sole proprietors to have at least commercial liability insurance, and may ask for documentation before signing a contract.

Key insurance documents you should keep

To demonstrate that you are properly insured and to handle claims efficiently, you should keep the following documents organised and easily accessible:

• Insurance policies (police)
  The full policy documents for each insurance type, including:
  • Policy number and insurer’s name
  • Named insured (your personal name and, if applicable, your business name and CVR number)
  • Coverage limits (sum insured), deductibles and territorial scope
  • Detailed description of what is covered and excluded
  • Start date, renewal date and termination conditions
• Insurance certificates (forsikringscertifikater)
  Short, formal confirmations of coverage issued by your insurer. Clients, landlords, banks and public authorities often request these as proof that you hold valid liability or workers’ compensation insurance.
• Payment confirmations and premium schedules
  Invoices and receipts showing that premiums have been paid on time. In case of a claim, insurers may require proof that the policy was active on the date of the incident.
• Claim documentation
  For any incident, keep:
  • Internal incident reports and photos
  • Correspondence with the injured party or client
  • Police reports, medical reports or repair invoices, where relevant
  • All communication with the insurance company about the claim
• Contractual insurance requirements
  Contracts with clients, landlords or partners that specify minimum insurance coverage, such as:
  • Required types of insurance (e.g. liability, professional indemnity)
  • Minimum coverage amounts per claim and per year
  • Any special clauses (e.g. naming the client as co‑insured)

Insurance and your business registration

While you can register a sole proprietorship with the Danish Business Authority (Erhvervsstyrelsen) without presenting insurance documents, insurance quickly becomes relevant in practice:

• When applying for certain licences or permits, you may need to attach insurance certificates or policy copies.
• When opening a business bank account, some banks ask for proof of insurance for higher‑risk activities.
• When bidding for public contracts, you will typically be asked to upload or submit insurance documentation as part of your tender material.

It is therefore advisable to clarify your insurance needs and obtain at least the core policies before you start marketing your services or signing contracts.

How insurance interacts with tax and accounting

Insurance premiums that relate directly to your business activity are generally deductible as business expenses in Denmark. To document this for tax and accounting purposes, you should:

• Keep all insurance invoices and payment receipts in your bookkeeping system
• Clearly separate private insurance from business insurance, especially if you work from home
• Store policy documents and correspondence so that they can be presented in case of a tax audit

An accountant or bookkeeper can help you classify premiums correctly and ensure that you claim all allowable deductions without mixing private and business expenses.

Practical tips for managing insurance documentation

To stay compliant and avoid gaps in coverage, consider the following practices:

• Set calendar reminders well before renewal dates to review coverage and premiums.
• Update your insurer when your turnover, number of employees, premises or risk profile changes.
• Store digital copies of all policies, certificates and claims in a secure, backed‑up location.
• Ensure that your business name and CVR number are correctly stated on all policies and certificates.

By proactively managing your insurance documentation, you protect your business against unexpected costs, meet legal and contractual obligations, and present a more professional profile to Danish clients, banks and authorities.

Record-Keeping Requirements and Recommended Accounting Documentation

As a sole proprietor in Denmark, you are legally required to keep accurate and timely accounting records. Good record-keeping is not only necessary for the Danish Tax Agency (Skattestyrelsen), but also essential for managing cash flow, planning tax payments and proving your business expenses if you are audited.

Legal record-keeping obligations

Danish bookkeeping rules require that business records are kept in a reliable, traceable and secure way. In practice, this means you must:

• Record all income and expenses related to your business
• Keep documentation for each transaction (for example invoices, receipts, bank statements)
• Ensure that your records clearly separate business and private finances
• Store your accounting records and supporting documents for at least 5 years

Records may be kept digitally or on paper, but they must be readable and accessible to Skattestyrelsen on request. If you use accounting software, make sure it complies with Danish bookkeeping standards and can export data in a commonly used format.

Key documents you should keep

Below are the main types of documents you should keep as a sole proprietor in Denmark. Having these well organised will make tax filing, VAT reporting and cooperation with your accountant much easier.

Sales and income documentation

For every sale, you should keep documentation that shows what you sold, to whom, when and for how much. This typically includes:

• Sales invoices issued to customers, including invoice number, date, your CVR number, customer details, description of goods or services, price and VAT (if applicable)
• Receipts from point-of-sale systems or online payment platforms
• Contracts or agreements with clients, especially for larger or ongoing projects
• Documentation of other income, such as commissions, royalties or platform payouts (for example from marketplaces or booking portals)

Expense and purchase documentation

To deduct business expenses from your taxable income, you must be able to document them. Keep:

• Purchase invoices from suppliers, including their CVR number and VAT details
• Receipts for smaller purchases (for example office supplies, tools, fuel)
• Subscription invoices (software, phone, internet, professional tools)
• Documentation for professional courses, conferences and memberships
• Import documents and customs declarations, if you buy goods from outside the EU

Expenses must be directly related to your business to be deductible. Private expenses are not deductible and should never be mixed with business costs.

Bank, cash and payment records

Using a separate business bank account is strongly recommended, even though it is not always legally mandatory for sole proprietors. This makes it easier to prove which transactions are business-related. You should keep:

• Bank statements for all accounts used for business purposes
• Credit card statements for business cards
• Documentation from payment providers (for example MobilePay Erhverv, Stripe, PayPal)
• Cash register reports and daily cash counts, if you handle cash

All movements of money in and out of the business should be traceable in your records and linked to supporting documents such as invoices or receipts.

VAT (moms) documentation

If your annual turnover exceeds 300,000 DKK, you must register for VAT and submit VAT returns to Skattestyrelsen. In that case, you must keep:

• All VAT invoices issued to customers, showing the VAT amount and rate
• All purchase invoices with VAT that you intend to deduct as input VAT
• VAT account or ledger showing VAT on sales and VAT on purchases
• Copies of VAT returns submitted via TastSelv Erhverv

Most small sole proprietors report VAT quarterly, but some must report monthly or half-yearly depending on turnover and Skattestyrelsen’s classification. Your records must allow you to quickly calculate VAT payable or refundable for each period.

Payroll and contractor documentation

If you have employees, you must comply with Danish payroll rules and keep:

• Employment contracts and salary agreements
• Payroll records, payslips and holiday pay calculations
• Documentation of withheld A-tax (income tax) and AM-bidrag (labour market contribution)
• Reports and payments to Skattestyrelsen and relevant pension or insurance schemes

If you use freelancers or subcontractors, keep their invoices and any written agreements. This helps document that they are independent contractors and not employees.

Fixed assets and depreciation

For larger purchases that you use over several years (for example machinery, computers, vehicles, equipment), you must keep:

• Purchase invoices showing the asset, price and date
• Financing or leasing agreements, if relevant
• An asset register listing each asset, purchase date, cost and depreciation method

Depreciation rules in Denmark allow you to deduct the cost of many assets over time. Proper documentation ensures you apply the correct depreciation rates and can justify your deductions.

Business use of home, car and mixed expenses

If you use your home or car partly for business, you must be able to document the business share. Typical documentation includes:

• Lease agreement or property tax and utility bills, if you deduct part of your home as office space
• Car purchase documents, logbooks and fuel receipts, if you deduct mileage or car expenses
• Phone and internet bills, with a reasonable method for splitting private and business use

Skattestyrelsen may ask how you calculated the business portion of these mixed expenses, so keep any calculations and supporting notes.

Tax returns and correspondence with authorities

Always keep copies of:

• Annual tax returns and business statements submitted through TastSelv
• Preliminary income assessments (forskudsopgørelse) and final tax assessments (årsopgørelse)
• Letters and decisions from Skattestyrelsen and other authorities
• Documentation used to prepare your tax returns (for example summaries from your accounting system)

These documents show how your reported figures were calculated and are important if there are later questions or corrections.

Recommended accounting structure for sole proprietors

Even if you are not legally required to prepare full annual financial statements, it is wise to maintain a simple but consistent accounting structure. Many sole proprietors in Denmark use:

• A chart of accounts adapted to their industry (sales, purchases, wages, rent, marketing, travel, depreciation, interest, etc.)
• Monthly or quarterly reconciliations of bank accounts and payment platforms
• Regular profit and loss overviews to track earnings and costs
• A simple balance overview showing assets, liabilities and any business-related debt

Using Danish or Denmark-compliant accounting software can automate much of this and reduce the risk of errors. It also makes it easier for an accountant or bookkeeper to review your numbers.

Digital storage and data security

You may store your accounting documents digitally, for example as PDFs or scans, as long as they are complete, readable and securely backed up. Consider:

• Using cloud storage or accounting software with automatic backup
• Organising documents by year and category (sales, purchases, VAT, payroll, assets, tax, etc.)
• Ensuring that access to your accounting data is protected with strong passwords and, where possible, two-factor authentication

If you handle personal data in your records (for example customer names and addresses), you must also comply with GDPR rules on data protection and retention.

Preparing documentation for your accountant or bookkeeper

If you work with an accountant or bookkeeper in Denmark, good preparation will save time and money. Typically, they will expect:

• Complete and up-to-date sales and purchase records
• Bank and payment provider statements for the period
• Information on outstanding customer invoices and unpaid supplier bills
• Asset purchase documentation and any leasing agreements
• Details of loans, interest and other financial obligations

Clear and well-structured documentation helps your advisor optimise your tax position, ensure compliance with Danish rules and give you a more accurate picture of your business performance.

Data Protection and GDPR-Related Documentation for Sole Proprietors Handling Personal Data

As a sole proprietor in Denmark, you are directly responsible for complying with the General Data Protection Regulation (GDPR) and the Danish Data Protection Act whenever you process personal data. This applies even if you run a very small business, work from home, or only handle limited customer information. Understanding your obligations and preparing the right documentation will help you avoid fines, protect your clients’ data and build trust.

When GDPR applies to a sole proprietorship in Denmark

GDPR applies whenever you process personal data relating to an identified or identifiable natural person. In practice, you are subject to GDPR if, for example, you:

• Issue invoices to private individuals including their name, address, phone number or email
• Maintain a customer list or CRM with contact details and purchase history
• Collect personal data via your website (contact forms, newsletter sign-ups, cookies)
• Store CVs or job applications from candidates
• Use cloud-based accounting, booking or marketing tools that contain client data

GDPR does not apply to purely personal or household activities, but most business-related processing by a sole proprietor will fall under the regulation.

Key GDPR principles you must follow

Your documentation should reflect the core GDPR principles, which the Danish Data Protection Agency (Datatilsynet) actively supervises. In particular, you must ensure that personal data is:

• Processed lawfully, fairly and transparently – you must have a legal basis (e.g. contract, legal obligation, consent, legitimate interest) and clearly inform people how you use their data.
• Collected for specific, explicit and legitimate purposes – do not use data for purposes that are incompatible with the original reason for collection.
• Limited to what is necessary – only collect and store data you actually need for your business activities.
• Accurate and kept up to date – correct or delete inaccurate information.
• Stored no longer than necessary – define and document retention periods.
• Protected with appropriate security – implement technical and organisational measures to prevent unauthorised access, loss or misuse.

Essential GDPR-related documents for Danish sole proprietors

Even though you are a small business, you are expected to be able to demonstrate compliance (“accountability”). The following documentation is particularly relevant for sole proprietors in Denmark.

1. Privacy policy (persondatapolitik)

You should prepare a clear privacy policy explaining how you process personal data. This can be published on your website and/or provided directly to clients. It should typically include:

• Your business name, CVR number and contact details
• What categories of personal data you collect (e.g. identification data, contact details, payment information)
• The purposes of processing (e.g. providing services, invoicing, bookkeeping, marketing)
• The legal basis for each purpose (e.g. contract, legal obligation under Danish bookkeeping rules, consent, legitimate interest)
• Who you share data with (e.g. accountant, hosting provider, cloud software providers, payment providers) and whether data is transferred outside the EU/EEA
• How long you keep the data, with concrete retention periods where possible
• Information about data subjects’ rights (access, rectification, erasure, restriction, objection, data portability and the right to complain to Datatilsynet)
• Contact details for privacy-related questions

2. Record of processing activities (fortegnelse over behandlingsaktiviteter)

Under GDPR, organisations with fewer than 250 employees must keep a record of processing activities if their processing is not occasional, includes special categories of data, or is likely to result in a risk to individuals’ rights. In practice, most Danish sole proprietors process personal data on a regular basis (e.g. ongoing customer relationships), so maintaining a record is strongly recommended.

Your record can be a simple document or spreadsheet and should describe, for each processing activity:

• Purpose of the processing (e.g. customer management, accounting, marketing)
• Categories of data subjects (e.g. customers, newsletter subscribers, suppliers, employees if you have any)
• Categories of personal data processed
• Legal basis (e.g. contract, legal obligation, consent, legitimate interest)
• Categories of recipients (e.g. accountant, IT providers, payment processors)
• Transfers to third countries, if any, and safeguards used
• Retention periods or criteria used to determine them
• General description of security measures

3. Data processing agreements with suppliers (databehandleraftaler)

If you use external service providers that process personal data on your behalf, you must have a written data processing agreement (DPA) with each of them. This is common for:

• Cloud-based accounting and invoicing systems
• CRM and email marketing platforms
• Website hosting and backup providers
• IT support and cloud storage services

The DPA must meet GDPR requirements and, among other things, specify:

• The subject matter and duration of the processing
• The nature and purpose of the processing
• The type of personal data and categories of data subjects
• The processor’s obligations regarding confidentiality, security, sub-processors and assistance with data subject rights
• Conditions for returning or deleting data after the end of the service

Many larger providers offer standard DPAs that already comply with EU and Danish requirements, but you are still responsible for checking that they are appropriate for your business.

4. Cookie and tracking documentation for your website

If you operate a website targeting users in Denmark and use cookies or similar technologies that are not strictly necessary (for example, for analytics, marketing or social media plugins), you must comply with both GDPR and Danish cookie rules enforced by the Danish Business Authority (Erhvervsstyrelsen).

Key documentation and measures include:

• A cookie policy describing which cookies you use, for what purposes, and how long they are stored
• A consent mechanism (cookie banner) that allows users to accept or reject non-essential cookies and to change their preferences
• Records of cookie consents, especially if you rely on consent as a legal basis for analytics or marketing

5. Security policy and access control documentation

You should document the technical and organisational measures you use to protect personal data. For a sole proprietor, this does not need to be complex, but it should be concrete and realistic. Typical elements include:

• Use of strong, unique passwords and multi-factor authentication for email, accounting and cloud services
• Encryption of devices (laptops, smartphones) and backups
• Rules for storing physical documents (locked cabinets, restricted access)
• Procedures for updating software and using antivirus or other security tools
• Policies for using personal devices for business purposes

This documentation helps demonstrate that you have taken “appropriate” security measures, as required by GDPR.

6. Data retention and deletion policy

GDPR requires that personal data is not kept longer than necessary. At the same time, Danish bookkeeping rules require you to retain accounting records, including invoices and supporting documentation, for a minimum of 5 years from the end of the financial year. Your retention policy should reconcile these requirements.

In your policy, define how long you keep different types of data, for example:

• Accounting and tax-related documents: at least 5 years in line with Danish bookkeeping legislation
• General customer correspondence: for the duration of the customer relationship and a defined period afterwards (e.g. 3 years) to handle potential claims
• Marketing data (e.g. newsletter subscribers): until consent is withdrawn or after a defined period of inactivity
• Job applications: for a limited period (e.g. 6 months) unless you obtain consent to keep them longer

Document how and when data is anonymised or deleted and how you ensure that backups are handled consistently.

7. Procedures for handling data subject rights

Individuals whose data you process have specific rights under GDPR. You should have simple written procedures describing how you will handle, within the required time limits, requests for:

• Access to their personal data
• Correction of inaccurate or incomplete data
• Deletion of data (where there is no overriding legal obligation to keep it)
• Restriction of processing
• Objection to processing based on legitimate interests or direct marketing
• Data portability, where applicable

In most cases, you must respond without undue delay and no later than one month. Your documentation should outline how requests can be submitted (e.g. email) and how you verify the identity of the requester.

8. Data breach response plan

Even a one-person business must be prepared for potential data breaches, such as lost devices, hacked email accounts or misdirected emails containing personal data. A short, practical breach response plan should include:

• How you identify and document a suspected breach
• How you assess the risk to affected individuals
• When you must notify Datatilsynet (generally within 72 hours of becoming aware of a notifiable breach)
• When you must inform affected individuals directly
• Measures to contain the breach and prevent recurrence

Keep a simple log of any incidents and the actions you took, even if you decide that notification is not required.

9. International data transfers and standard contractual clauses

If you use cloud services or tools that store or access personal data outside the EU/EEA, you must ensure that transfers comply with GDPR rules on international data transfers. This often involves:

• Checking whether the provider stores data within the EU/EEA
• Where data is transferred to a non-EU/EEA country, ensuring appropriate safeguards such as EU Standard Contractual Clauses (SCCs)
• Documenting your assessment of the provider’s data protection level and any additional measures taken

Many popular services now offer EU-based hosting options or have updated their contracts to include SCCs. You should keep copies of relevant agreements and privacy documentation from your providers.

10. Internal notes and training records (if you have staff)

If you employ staff, you must also document how you inform and train them on data protection. This can include:

• Short written guidelines for employees on handling customer data securely
• Records of any training or briefings on GDPR and security
• Confidentiality clauses in employment contracts

Even with only one or two employees, Datatilsynet expects you to show that staff understand their responsibilities.

Practical steps to stay compliant as a sole proprietor

To manage GDPR obligations in a manageable way, many Danish sole proprietors:

• Map their data flows once and update them when they change systems or services
• Use reputable EU-based or GDPR-compliant cloud services for accounting and customer management
• Standardise retention periods and set reminders to review old data
• Regularly review website cookies, plugins and marketing tools
• Coordinate GDPR documentation with their accountant or bookkeeper, especially regarding retention and access to accounting data

By preparing these key documents and keeping them up to date, you significantly reduce your legal risk and demonstrate that your Danish sole proprietorship takes data protection seriously.

Using an Accountant or Bookkeeper: What Documents to Prepare Before Seeking Professional Help

Working with an accountant or bookkeeper in Denmark can save you time, reduce the risk of errors and help you stay compliant with Danish tax and accounting rules. To make the cooperation efficient from day one, it is important to prepare a clear set of documents and information about your sole proprietorship before the first meeting.

Basic business and identification details

Start by gathering the core information and documents that identify you and your business. Your accountant will typically ask for:

• Your full name, CPR number and contact details (email, phone)
• Your Danish digital ID (MitID) details for reference, especially if you want help with online filings on skat.dk and virk.dk
• Your CVR number and proof of registration of your sole proprietorship with the Danish Business Authority (Erhvervsstyrelsen)
• The official business name and any secondary names you use in invoices, website or marketing
• The date you started your business activities and the financial year you use (usually the calendar year)

Business model, pricing and contracts

Your accountant needs to understand how you earn money and what costs you have in order to set up proper bookkeeping and tax planning. Prepare:

• A short description of your business activities and main services or products
• Information about your pricing model (hourly rates, fixed project fees, subscriptions, product price lists)
• Copies or templates of your standard contracts, terms and conditions and offers you send to clients
• Details about your main customers and suppliers, especially if any are based outside Denmark or in other EU countries

Registration for VAT and other schemes

If your annual turnover exceeds DKK 50,000 over a 12‑month period, you must register for VAT (moms). Your accountant will need to know your status and see:

• Confirmation of VAT registration, including your VAT number, if you are already registered
• The date from which you are or will be VAT liable
• Information about any other registrations, such as import/export (EORI), payroll tax (AM-bidrag and A‑tax for employees) or special sector schemes

If you are not yet registered for VAT but expect to cross the threshold soon, prepare an estimate of your expected turnover so your accountant can advise on the right time to register.

Bank accounts, payment solutions and financing

Clear separation between private and business finances is crucial in Denmark, even for sole proprietors. Before meeting your accountant, collect:

• Details of your business bank account (account numbers and bank name)
• Bank statements for all accounts used for business transactions, ideally in digital format (CSV, PDF)
• Information about payment solutions you use, such as MobilePay, card terminals, online payment gateways or marketplaces
• Contracts and statements for loans, overdrafts, leasing agreements or other financing related to your business

If you have been using a private account for business expenses, your accountant will need full statements to separate business and private transactions.

Sales documentation: invoices and income records

Accurate records of your income are essential for both VAT and income tax. Prepare:

• All issued invoices, including invoice numbers, dates, customer details, amounts and VAT breakdown
• Receipts or reports from online platforms, if you sell through marketplaces or apps
• Any credit notes or corrections you have issued
• A list of unpaid invoices (debtors), including due dates and any reminders sent

If you use invoicing or accounting software, provide your accountant with access or export data from the system.

Purchase documentation: expenses and assets

To ensure you claim all allowable deductions, your accountant will need a complete overview of your business expenses. Collect:

• Purchase invoices and receipts for goods and services used in your business
• Documentation for subscriptions and online services (software, hosting, advertising, professional tools)
• Receipts for travel and transport, including mileage logs if you use a private car for business
• Invoices for equipment and larger assets, such as computers, machinery, furniture or vehicles
• Documentation for home‑office expenses if you work from home (rent, utilities, internet) so your accountant can assess what is deductible

Make sure receipts are legible and, if possible, organised by month. Digital copies are generally accepted in Denmark as long as they are complete and readable.

Payroll and personal income information

If you have employees or pay yourself salary through a payroll system, your accountant will need:

• Employment contracts and agreed salary terms for each employee
• Payroll reports showing A‑tax, labour market contribution (AM‑bidrag), holiday pay and ATP contributions
• SKAT correspondence related to withholding tax cards (skattekort) for employees

For your own taxation as a sole proprietor, prepare:

• Your latest personal tax assessment (årsopgørelse) and preliminary income assessment (forskudsopgørelse)
• Information about other income sources, such as employment income, pensions, rental income or investment income

This allows your accountant to optimise your tax position and adjust your preliminary tax to avoid large underpayments.

Existing bookkeeping, reports and agreements

If you have already been in business for some time, your accountant will want to review your existing records. Prepare:

• Any previous accounts, profit and loss statements and balance sheets
• Existing bookkeeping files or exports from your accounting system
• Previous VAT returns and documentation used to prepare them
• Any correspondence with the Danish Tax Agency (Skattestyrelsen), including decisions, reminders or audits
• Agreements with previous accountants or bookkeepers, if you are changing provider

GDPR and data processing documentation

If you handle personal data about customers, employees or other individuals, your accountant may ask for basic GDPR‑related documents to ensure your processes align with Danish and EU rules. Prepare:

• Your privacy policy and any internal guidelines on data protection
• Data processing agreements with IT providers, cloud services and other processors
• Information about how you store and secure accounting records and customer data

Practical tips for a smooth first meeting

To get the most value from professional help, try to:

• Organise documents by year and month before sending them
• Use clear file names and avoid mixing private and business documents
• Prepare a list of questions about VAT, deductions, deadlines and any planned investments
• Clarify whether you want ongoing bookkeeping support, help only with VAT and tax filings, or a full accounting package

Coming to your accountant or bookkeeper with this documentation ready will speed up the onboarding process, reduce the risk of missing deductions and help you build a compliant and efficient accounting setup for your Danish sole proprietorship.

Final Reflections on Registering a Sole Proprietorship in Denmark

Registering a sole proprietorship in Denmark can be a fulfilling and relatively simple process provided that you familiarize yourself with the necessary documentation and legal requirements. Adequate preparation and understanding of ongoing responsibilities play a crucial role in ensuring your business operates smoothly and complies with Danish regulations. By maintaining accurate records, staying compliant with tax responsibilities, and actively seeking ways to grow, you can successfully navigate the journey of entrepreneurship in Denmark.