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The CPR number in Denmark

The CPR number is essential for managing official matters and interacting with financial institutions, such as banks. Employers also use it to accurately identify employees. This system facilitates the efficient and secure handling of employment formalities, tax processing, and access to public services. Without a CPR number, accessing many services in Denmark would be much more challenging or even impossible.

What is a CPR Number?

The CPR number (Det Centrale Personregister) in Denmark is a unique identification number used to verify the identity of individuals living in the country. It is an important part of everyday life, as both public and private institutions rely on it. The CPR number consists of 10 digits, with the first 6 representing the individual’s date of birth-day, month, and year. The remaining 4 digits are randomly assigned, ensuring the number's uniqueness.

Residence Registration in Denmark and the CPR Number

As an EU citizen, you can stay in Denmark for up to 3 months without needing to register your residence. If you intend to seek employment during this time, the period can be extended to 6 months. To benefit from this extension, you must apply for residence registration before the initial 3 months end. The application should be submitted to the relevant Statsforvaltning office in the area where you are residing.

Registering your residence allows you to live and work legally in Denmark under EU citizen regulations. Without this registration, you will not be able to fully access resident rights and services. Furthermore, residence registration is necessary to obtain a CPR number (CPR-personnummer), which is essential for various formalities, such as opening a bank account or starting a job.

To get a CPR number, you need to register with the National Register of Persons (Folkeregisteret). This process ensures that your details are officially recorded in the national system. Once registered, you will automatically receive a CPR number, which is essential for many official procedures in Denmark.

In addition to assigning a CPR number, registration in the Folkeregisteret grants you access to the Danish healthcare system. This means you can receive full medical care, including doctor visits, hospital treatment, and other health services. Without registering in the National Register of Persons, you cannot obtain a CPR number or access healthcare in Denmark.

Before beginning the formalities for your stay in Denmark, it’s important to gather the necessary documents. The key documents required for registration and obtaining the appropriate entitlements include:

Application for a CPR Number

To obtain a CPR number, which is crucial for legal activities in Denmark, you must prove that you have permanent residence in the country. The first step is to secure confirmation of your permanent residence by submitting an application to the local authorities in your municipality.

This application can be completed online, streamlining the process and eliminating the need for in-person visits to the offices. The processing fee is approximately 82 DKK. For those without internet access, municipal offices provide assistance in completing and submitting the application. Additionally, many public libraries offer computer and internet access, allowing individuals to submit their applications at these locations.

If we need to obtain the certificate on behalf of someone else, we must provide a written power of attorney. This document grants us permission to act on their behalf, ensuring the process is carried out properly and legally. The power of attorney must be formally prepared so that the municipal authorities will accept it.

It’s important to note that a CPR number is only applied for once in a lifetime. This means that the assigned tax identification number is permanent and will remain with you indefinitely, regardless of how many times you visit Denmark. Therefore, even if you relocate or return to Denmark, the CPR number will always be associated with you.

If you plan to move to Denmark with your family, each family member must submit a separate application for a CPR number. Each person, including children, must have their own CPR number to fully participate in social activities and utilize the services offered in Denmark.

The CPR number is issued when you receive your digital tax card. Once issued, your number will appear on your preliminary annual tax return. Additionally, SKAT will send your tax identification number to your employer via digital mail. This allows your employer to access your tax number, which is necessary for accurately calculating and withholding income tax advances. The goal of this process is to streamline tax administration and ensure that all employment and tax obligations are properly managed according to the law.

Since June 1, 2017, it is required to submit applications online after receiving a residence permit in Copenhagen. Once the application is submitted, you will need to wait for a notification from the International Center for Foreigners in Copenhagen, which will inform you when your number is assigned. You must collect this number in person. For those living outside the capital, applications can be submitted at the Foreigners' Centers in Odense, Aalborg, and Aarhus.

Documents Required for Applying for a CPR Number

The documents submitted with the CPR number application must be translated into English, German, Danish, Swedish, or Norwegian. The required documents include:

The processing time to receive a CPR number from SKAT is around 6-10 weeks after submitting all required documents. Once the CPR number is assigned, we will be enrolled in the Danish health insurance system and gain access to medical services. We will also need to select a doctor from a list provided by our municipality. After receiving the CPR number, we can proceed with setting up a tax card.

Structure and Format of the Danish CPR Number

The Danish CPR number (personnummer) is a unique personal identification number assigned to everyone registered in the Danish Civil Registration System. It is used by public authorities, banks, employers, educational institutions and healthcare providers to identify you in a secure and consistent way.

The CPR number always consists of 10 digits in the following format:

DDMMYY-SSSS

The first six digits represent your date of birth, and the last four digits are a sequence number that makes the CPR number unique.

Date of birth in the CPR number

The first part of the CPR number indicates your date of birth:

For example, a person born on 5 March 1990 will have the first six digits 050390. This structure applies to both Danish citizens and foreign residents registered in Denmark.

Sequence number and indication of gender

The last four digits (SSSS) are a sequence number assigned by the Danish authorities. This part does not reveal your place of birth or residence, but it does indicate your legal gender as registered in the CPR system:

Transgender and non-binary persons who change their legal gender in Denmark can apply to have their CPR number changed so that the last digit reflects the new registered gender. This is handled by the Danish Agency for Digital Government and the local municipality (kommune).

Century and year of birth

Because the CPR number uses only two digits for the year of birth, the century is determined by a combination of the year and the sequence number. The rules for this are technical and primarily relevant for authorities and IT systems. In normal everyday use, you only need to know that:

You do not need to calculate or verify the century yourself; this is handled by the CPR register and the systems that use it.

Format used in practice

In everyday communication, the CPR number is usually written with a hyphen between the date of birth and the sequence number, for example 120578-1234. In some digital forms and systems, the hyphen is omitted, and you are asked to enter the 10 digits without spaces or separators.

When filling in forms or signing up for services in Denmark, always follow the format requested in the specific form. If the field does not accept the hyphen, enter the CPR number as DDMMYYSSSS.

Temporary CPR numbers and special formats

In some situations, for example for short-term stays or when a person cannot be fully identified, the authorities may assign a temporary CPR number or an administrative identification number. These numbers may follow a slightly different internal logic, but for the user they function in a similar way in contact with authorities and healthcare.

If you receive a temporary CPR number, the letter from the authority will clearly state that it is temporary and explain whether and when it will be replaced by a permanent CPR number.

Check digits and validation

Historically, CPR numbers were constructed with a mathematical check digit (modulus 11) to validate the number. Due to the growing population and the need for more combinations, this system is no longer applied consistently to all new CPR numbers. As a result, some CPR numbers do not pass the old modulus 11 check, but are still fully valid.

For this reason, modern public and private IT systems in Denmark must not reject a CPR number solely because it fails a modulus 11 check. If you encounter a system that claims your CPR number is invalid, you should contact the provider and ask them to update their validation rules.

Why the structure of the CPR number matters

Understanding the structure of the Danish CPR number helps you:

Although the CPR number contains your date of birth and an indication of gender, it is still considered sensitive personal data. You should therefore only share it when it is necessary and with trusted parties, such as public authorities, your employer, your bank or your doctor.

CPR Number and Access to Public Healthcare (Yellow Health Card)

The Danish CPR number is the key to accessing the public healthcare system and obtaining the yellow health card (sundhedskort). Without a CPR number, you generally cannot register with a general practitioner (GP), use most public healthcare services on equal terms with residents, or be covered under the standard Danish health insurance scheme.

What is the Yellow Health Card?

The yellow health card is an official plastic card issued by your municipality once you are registered in the Danish Civil Registration System (CPR). It serves as proof that you are covered by the Danish public healthcare system and shows:

You must bring the yellow card when you visit your GP, public hospitals, emergency rooms and many other healthcare providers. In most situations, the card is scanned instead of you paying upfront for treatment.

Who is Entitled to the Yellow Health Card?

In general, you are entitled to a yellow health card if you:

Children registered in the CPR automatically receive their own yellow health card once they are entered into the system. Newborns born in Denmark are registered shortly after birth and a card is sent to the parents’ address.

How to Get the Yellow Health Card

The process of obtaining the yellow card is linked to your CPR registration. In most cases you:

  1. Register your address and apply for a CPR number at the local Citizen Service (Borgerservice) or International Citizen Service, depending on your municipality and status.
  2. Choose a GP from a list of available doctors in your area. Some municipalities allow you to choose online via self-service, others during your in-person registration.
  3. Once your CPR registration is approved and your GP is assigned, the yellow health card is produced and sent by post to your registered address, typically within 2–3 weeks.

You are normally covered by public healthcare from the date your CPR registration takes effect, even if the physical card has not yet arrived. In that period, you may need to show other identification and your CPR number.

Coverage Under the Danish Public Healthcare System

With a CPR number and yellow card, you are covered by the Danish public healthcare system, which generally includes:

Most GP and hospital treatments are free at the point of use for residents covered by the yellow card. You may, however, pay part of the cost for dental treatment, physiotherapy, psychology, and other services, depending on the type of treatment and any referral.

Choosing and Changing Your GP

Your CPR number is directly linked to your chosen GP. When you register for the CPR number and yellow card, you must select a GP who accepts new patients. You can later change your GP, usually for a fixed administrative fee per person, unless the change is due to a move to another area where your current GP is no longer within the allowed distance.

All non-acute treatment in the public system normally starts with your GP, who acts as a gatekeeper and decides whether you need a referral to a specialist or hospital.

EU/EEA Citizens and the European Health Insurance Card (EHIC)

If you are an EU/EEA or Swiss citizen staying temporarily in Denmark without registering for a CPR number, you may use your European Health Insurance Card (EHIC) for medically necessary treatment during your stay. However, the EHIC does not replace the CPR number and yellow card and does not give you the same access as a resident, for example for long-term follow-up, regular GP registration or full coverage of non-acute services.

Once you register as a resident and obtain a CPR number, the Danish yellow card becomes your main proof of healthcare coverage instead of the EHIC.

Students and Short-Term Stays

International students enrolled in programmes lasting more than three months and who register for a CPR number are usually entitled to the yellow health card on the same terms as other residents. Students on shorter stays, or those who do not obtain a CPR number, must rely on private insurance or, for EU/EEA students, the EHIC for medically necessary treatment.

Replacement, Loss or Change of Address

If you lose your yellow health card, it is damaged, or your details change, you can order a new card through your municipality’s self-service solution or at Citizen Service. A replacement card is normally subject to a small fee, except in specific cases such as a change of name or address registered in the CPR, where the municipality may issue a new card automatically.

When you move within Denmark and update your address in the CPR, your healthcare coverage continues, but you may be asked to choose a new GP if you move to another municipality or outside your current GP’s catchment area. A new yellow card is then sent to your new address.

Leaving Denmark and Healthcare Coverage

When you deregister from the CPR because you are leaving Denmark, your entitlement to the yellow health card and Danish public healthcare generally ends on the date of deregistration. From that point, you are expected to be covered by the healthcare system or insurance in your new country of residence. It is important to plan private health insurance or coverage in your destination country before deregistering from the CPR.

CPR Number and Taxation: SKAT Registration and Salary Payments

The Danish CPR number is essential for correct taxation and for receiving salary in Denmark. Without a CPR number you cannot obtain a tax card, and your employer will be obliged to withhold a high preliminary tax rate. Understanding how the CPR number is linked to SKAT (the Danish Tax Agency) helps you avoid over‑taxation and problems with your payslips.

CPR number and registration with the Danish Tax Agency (SKAT)

Once you receive your CPR number and register your address with the municipality, your basic information is automatically shared with the Danish Tax Agency. However, this does not mean that your tax is set up correctly. You must actively register your expected income and deductions so that SKAT can issue the right tax card.

In practice, the process usually looks like this:

  1. You obtain a CPR number and register your address in Denmark.
  2. You create a MitID and gain access to the self‑service portal skat.dk.
  3. You log in to “Forskudsopgørelse” (preliminary income assessment) and enter:
    • your expected annual salary before tax
    • any foreign income that is taxable in Denmark
    • relevant deductions (for example interest expenses, commuting, union fees, unemployment insurance)
  4. SKAT calculates your tax and issues a tax card linked to your CPR number.
  5. Your employer retrieves your tax card electronically using your CPR number and can then pay your salary correctly.

Tax card types: main card and secondary card

In Denmark each person has one main tax card and, if needed, one or more secondary tax cards. Both are linked to your CPR number and are only available digitally to you and to registered payers such as employers or pension providers.

If you have more than one employer, it is important to assign the main card to the job with the highest income. You manage this yourself on skat.dk using your CPR number. If you do not choose, employers may use the wrong card, which can lead to too little or too much tax being withheld during the year.

Tax rates and personal allowance

Danish income tax is progressive and consists of several layers: municipal tax, health contribution via tax, labour market contribution, and state tax. All of these are calculated based on the income reported under your CPR number.

Key elements include:

The exact percentages and thresholds are adjusted regularly by law. When you update your preliminary income assessment on skat.dk, the system automatically applies the current rates and calculates how much tax should be withheld from your salary each month.

CPR number and salary payments

Employers in Denmark are required to report salary information to SKAT through the eIncome system using your CPR number. This reporting includes:

Because everything is linked to your CPR number, you do not need to submit monthly tax returns yourself as an employee. Instead, you can log in to skat.dk at any time to see your registered income, tax withheld, and expected final tax position.

For salary to be paid correctly and on time, you normally need:

If your employer does not have access to a valid tax card under your CPR number, they must withhold tax at a significantly higher rate until the correct card is available.

What happens if you do not have a tax card?

If you start working in Denmark before your tax card is in place, your employer is legally obliged to withhold tax at a standard high rate. This often means:

This can result in a very low net salary. Once your CPR number is registered with SKAT and your tax card is created, your employer can adjust future salary payments. Any excess tax withheld will normally be refunded after the end of the tax year through your annual tax assessment (årsopgørelse), provided that all income and deductions are correctly reported under your CPR number.

Foreign income, double taxation and the CPR number

If you have income from another country while being tax resident in Denmark, you must usually declare it to SKAT under your CPR number. Denmark has double taxation agreements with many countries, which determine whether foreign tax can be credited or whether certain income is exempt in Denmark.

Typical situations include:

Correct handling of such income often requires professional advice, as the interaction between Danish rules and foreign tax systems can be complex. However, all declarations and any relief from double taxation are always processed under your CPR number.

End of employment and change of income

Whenever your income situation changes, you should update your preliminary income assessment on skat.dk using your CPR number. This applies when you:

By keeping your information up to date, you reduce the risk of a large tax bill or an unexpectedly high refund after the end of the tax year.

How a Danish accounting firm can help

Because all tax matters in Denmark are tied to your CPR number, errors in registration or reporting can have long‑term consequences. A professional accounting firm can assist with:

With the right setup from the beginning, your CPR number becomes a practical tool that ensures correct taxation and smooth salary payments throughout your stay in Denmark.

CPR Number and NemID/MitID, e-Boks and Digital Post

The Danish CPR number is the key to accessing almost all digital public services in Denmark. It is technically possible to create some digital accounts without a CPR number, but in practice you need a CPR to obtain NemID or MitID, log in to e-Boks and receive Digital Post from Danish authorities and many private companies.

NemID and MitID – digital identification linked to your CPR

NemID and MitID are Denmark’s official digital ID solutions used to log in to public self-service platforms, online banking and many private services.

NemID is being phased out and replaced by MitID, but you may still encounter NemID in some systems. Both are always linked to your CPR number and your registered identity in the Danish Civil Registration System.

To obtain MitID you normally need:

MitID can be activated via the MitID app, a MitID code display or a MitID audio code reader. When you log in with MitID, the system checks your CPR number and the data stored in the central register, which is why correct registration of your name, address and date of birth is essential.

Using your CPR number to access e-Boks

e-Boks is a secure digital mailbox used by public authorities, banks, insurance companies and many other organisations. Most residents in Denmark receive important letters exclusively via e-Boks instead of on paper.

Your e-Boks account is created on the basis of your CPR number. After you receive your CPR and activate NemID or MitID, you can log in to e-Boks and:

If you change your address or name in the CPR register, this is automatically reflected in the information connected to your e-Boks account.

Digital Post – mandatory electronic communication

Digital Post is the system used by Danish public authorities to send official messages to citizens and businesses. For most people with a CPR number and a registered address in Denmark, receiving Digital Post is mandatory.

Digital Post is normally delivered to your e-Boks or another approved digital mailbox. To read it, you log in with NemID or MitID, and the system identifies you through your CPR number. Typical types of Digital Post include:

Ignoring Digital Post can have serious consequences, for example missed deadlines for tax corrections, appeals or benefit applications. It is therefore important to activate your digital mailbox as soon as you receive your CPR number and MitID.

Exemptions and special situations

Some people can apply for an exemption from mandatory Digital Post, for example due to severe disability, lack of digital skills or other special circumstances. Even in these cases, the CPR number remains the primary identifier in contact with authorities, and paper letters will still be registered under your CPR.

Short-term residents and some cross-border workers may not be required to use Digital Post, but if they obtain a CPR number and MitID, many authorities will still prefer to communicate digitally.

Why your CPR-based digital identity matters for accounting and tax

For employees, self-employed persons and company owners, secure digital identification via CPR and MitID is crucial for correct accounting and tax handling. You use your CPR-based login to:

Because all these processes are tied to your CPR number, any mistake in your registration or problems with MitID can quickly affect your salary payments, tax deductions and benefit entitlements. Professional accounting support can help ensure that your CPR data, digital access and tax registrations are consistent and up to date.

CPR Number for EU/EEA Citizens vs. Non-EU Citizens

The rules for obtaining a Danish CPR number differ depending on whether you are an EU/EEA citizen or a non-EU citizen. The main differences concern the legal basis for residence, the documents you must present, and how long you are allowed to stay in Denmark. Understanding these distinctions is crucial if you plan to live, work or study in Denmark and need access to healthcare, taxation, banking and other public services.

CPR number for EU/EEA and Swiss citizens

Citizens of EU/EEA countries and Switzerland have the right to free movement and can enter Denmark without a visa. However, to obtain a CPR number for a stay longer than a short visit, you must document your legal residence under EU rules.

In practice, you normally need to:

As an EU/EEA or Swiss citizen, you can usually obtain a CPR number if:

Once your EU residence is registered and your address is recorded in the Civil Registration System, the municipality issues your CPR number and yellow health card. Processing times vary between municipalities, but in many cases you receive your CPR number within a few weeks after submitting all required documents.

CPR number for non-EU citizens

Non-EU citizens must normally obtain a residence permit before they can be registered in Denmark and receive a CPR number. The type of permit depends on your purpose of stay, such as work, study, family reunification or au pair.

Typical grounds for residence that allow you to obtain a CPR number include:

As a non-EU citizen, you usually apply for your residence permit through the Danish Agency for International Recruitment and Integration (SIRI) or the Danish Immigration Service, often before arriving in Denmark. After arrival, you must:

Without a valid residence permit that allows residence in Denmark for more than a short period, you normally cannot be registered in the Civil Registration System and will not receive a CPR number.

Length of stay and access to a CPR number

The length of your intended stay is crucial for both EU/EEA and non-EU citizens:

EU/EEA citizens can stay in Denmark for up to 3 months without registering their residence (up to 6 months when actively seeking work), but they will not receive a CPR number until they register their EU right of residence and Danish address. Non-EU citizens are bound by the validity and conditions of their visa or residence permit and cannot obtain a CPR number for purely short-term or tourist stays.

Key differences between EU/EEA and non-EU applicants

While the CPR number itself has the same structure and legal function for everyone, the path to obtaining it differs:

Despite these differences, once you are registered and have a CPR number, your access to core public services such as healthcare, taxation, digital self-service and many private services is largely the same, provided you meet the specific conditions attached to your residence status.

CPR Number for Cross-Border Workers and Commuters

Cross-border workers and commuters who live in another country but work in Denmark often need a Danish CPR number to handle tax, salary, social security and access to certain public services. Whether you can obtain a CPR number depends mainly on the length and nature of your employment and on where you are resident for tax and social security purposes.

Who is considered a cross-border worker?

You are typically considered a cross-border worker or commuter if you:

You can be either an employee or self-employed. What matters is that your work is physically carried out in Denmark and that you have a valid employment contract or business activity here.

Do cross-border workers need a CPR number?

In many cases you can work in Denmark and pay Danish tax without a CPR number, using only a Danish tax number (also called a skattekortnummer or temporary number). However, a CPR number is strongly recommended or required if you:

For very short assignments, seasonal work or occasional consultancy work, you will often only receive a tax number from the Danish Tax Agency (Skattestyrelsen) and not be registered in the Civil Registration System (CPR).

Conditions for obtaining a CPR number as a commuter

To obtain a CPR number as a cross-border worker, you generally need to meet one of the following conditions:

In practice, the authorities will look at:

If you are socially insured in another EU/EEA country and hold an A1 certificate, you may not be covered by Danish social security, but you can still in some cases obtain a CPR number for tax and administrative purposes if your work in Denmark is sufficiently stable and regular.

Registration procedure for cross-border workers

Cross-border workers usually register either at an International Citizen Service (ICS) centre or at the local municipality (kommune) where their workplace is located. The exact procedure depends on your nationality and the type of permit you hold.

In general, you should bring:

After registration, your CPR number is issued by the Danish Civil Registration System. If you are also covered by Danish health insurance, you will receive a yellow health card by post at your registered address.

CPR number, tax and the cross-border tax scheme

As a cross-border worker, you are generally subject to Danish tax on income earned from work performed in Denmark. A CPR number makes it easier to:

Denmark offers a specific cross-border tax scheme for individuals who live in another EU/EEA country but are fully or almost fully taxable in Denmark. To qualify for the cross-border tax scheme, you must generally:

If you meet these conditions, you can in many cases claim the same personal allowances and deductions as Danish residents, such as the personal allowance, interest deductions and certain work-related deductions. The personal allowance is applied through your tax card and reduces the income on which you pay tax.

Without a CPR number, it is more difficult to manage your tax situation digitally, and you may have to communicate with the tax authorities by post or through your employer or tax representative.

CPR number and access to Danish banking and salary payments

Most Danish employers prefer or require that salary is paid to a Danish bank account. To open a Danish bank account, banks normally require a CPR number and documentation of your identity and employment. With a CPR number you can:

Without a CPR number, some banks may still open an account, but the process is usually more complicated and not all banks offer this option. In practice, having a CPR number significantly simplifies salary payments and refunds from the tax authorities.

Healthcare and social security for commuters

Whether you are entitled to Danish public healthcare and a yellow health card as a cross-border worker depends on where you are socially insured. Under EU rules, you are normally insured in only one country at a time:

In some border regions, there are special agreements that allow commuters to access healthcare in both countries, but the details depend on bilateral arrangements and your specific situation. It is important to clarify your social security status with the relevant authorities before starting work.

Digital services: MitID, e-Boks and communication with authorities

With a CPR number, cross-border workers can usually obtain MitID, which is the digital ID used in Denmark. MitID allows you to:

Without a CPR number, access to these services is very limited, and you may have to rely on paper correspondence or direct contact with authorities and banks.

When cross-border workers are not entitled to a CPR number

You will usually not be granted a CPR number if:

In such cases, you can still obtain a tax number from the Danish Tax Agency so that your employer can withhold Danish tax correctly. You will then be identified in the tax system by this number instead of a CPR number.

Practical tips for commuters

Before starting work in Denmark as a cross-border worker, it is advisable to:

A correctly issued CPR number helps cross-border workers and commuters handle tax, salary, healthcare and communication with Danish authorities efficiently and reduces the risk of administrative problems later on.

Updating Personal Data Linked to Your CPR Number (Address, Marital Status, Name)

Keeping the information linked to your Danish CPR number up to date is mandatory and affects your tax, healthcare, social benefits and official communication with public authorities. Changes to your address, marital status or name must be reported to the Danish Civil Registration System (CPR-registeret) within the deadlines set by law.

Updating your address (move within Denmark or from abroad)

If you move to a new address in Denmark, you must report the move to the CPR register no later than 5 days after you have actually moved in. Registration is done digitally via borger.dk using MitID. In most municipalities you do not need to appear in person if you already have a CPR number and MitID, but some may ask you to upload documentation (for example a rental contract or confirmation from the landlord).

When your new address is registered:

If you move to Denmark from abroad and meet the conditions for registration (typically a stay of at least 3 months for EU/EEA citizens and 6 months for most non-EU citizens with a valid residence permit), you must register your address and obtain or reactivate your CPR number at the local Citizen Service (Borgerservice). You normally need to book an appointment and bring your passport or national ID card, residence permit (if applicable) and documentation of your housing.

Changing your address when leaving Denmark

If you plan to live outside Denmark for more than 6 months, you must deregister from the CPR register and report your new address abroad to your municipality before leaving or no later than the day of departure. Deregistration can usually be done online with MitID. This affects your tax liability, access to public healthcare and entitlement to certain benefits, so it is important to coordinate the move with both the tax authority (Skattestyrelsen) and your municipality.

Updating marital status (marriage, registered partnership, divorce)

Your marital status (single, married, divorced, widowed, registered partner) is stored in the CPR register and is used for tax calculations, inheritance rules and some social benefits. It must always reflect your actual situation.

If you marry in Denmark, the marriage is normally reported directly to the CPR register by the authority that performs the ceremony (the municipality or the church). If you marry abroad, you must actively report the marriage to your Danish municipality and provide official documentation, such as a marriage certificate with an authorised translation if it is not in Danish, English or another widely accepted language. The municipality will then update your CPR record.

Divorce and legal separation granted in Denmark are reported automatically by the Agency of Family Law (Familieretshuset). If you are divorced abroad, you must apply to have the foreign divorce recognised in Denmark if you want your marital status in the CPR register to be changed. This may require additional documentation and processing time.

Not updating your marital status can lead to incorrect tax deductions, wrong calculation of certain benefits and complications in case of inheritance or property division.

Changing your name in Denmark

Name changes in Denmark are regulated by the Danish Name Act and are registered in the CPR system. A change of first name, middle name or surname is usually done digitally via borger.dk or by submitting a form to the parish office (kirkekontor) or your municipality, depending on your affiliation with the Church of Denmark.

In many cases, a fee is charged for a name change. Some changes are free of charge, for example when you take your spouse’s surname in connection with marriage or when a child’s name is registered shortly after birth. For other types of name changes, a state fee applies per application. The fee is adjusted regularly, and you can see the current amount on borger.dk before submitting your request.

When your name change is approved and registered in the CPR:

Who can update your CPR data and how

As a rule, you are responsible for ensuring that your personal data in the CPR register is correct. Most changes can be made digitally with MitID via borger.dk. In some situations, you must appear in person at Borgerservice, for example if you do not yet have MitID, if you are newly arrived in Denmark or if the authority needs to see original documents.

Parents or legal guardians can request updates for children under 18, such as address changes or name registration. Public authorities can also update certain information directly when they make decisions that affect your status, for example in cases of divorce, adoption or death.

Consequences of not updating your CPR information

Incorrect or outdated information in the CPR register can have practical and financial consequences. You may receive wrong tax assessments, lose access to your chosen doctor, miss important Digital Post from authorities or risk having to repay benefits that were paid based on incorrect data. In serious cases, knowingly providing false information can lead to fines or other legal consequences.

For companies and employers, accurate CPR data is essential for correct salary payments, tax withholding (A-tax and AM-contribution) and reporting to the tax authorities. If you change your name or address, inform your employer promptly so that payroll and reporting match the information in the CPR register.

Because the CPR number is the key identifier in almost all Danish public systems, keeping your address, marital status and name up to date ensures that you receive the correct rights, pay the right amount of tax and avoid administrative problems with both authorities and private companies.

CPR Number and Access to Danish Banking Services

In Denmark, having a CPR number is in practice a prerequisite for accessing most banking services. Danish banks are required by law to identify customers through their civil registration number, which is used to verify your identity, report information to the tax authorities and comply with anti–money laundering rules. Without a CPR number, your options are usually limited to very basic or special-purpose accounts, and many banks will not onboard you at all.

Why Danish banks require a CPR number

The CPR number is used by banks to:

Because of these obligations, most banks will ask for your CPR number at the very beginning of the onboarding process and will not open a standard current account until you are registered in the CPR system.

Opening a bank account with a CPR number

Once you have your CPR number, opening a Danish bank account is usually straightforward, although each bank sets its own procedures. In most cases you will need to present:

Many banks require you to book an appointment in advance and may conduct the identification process in person, even if you start the application online. Some banks also offer English-language services specifically for internationals.

CPR number, salary payments and NemKonto

Employers in Denmark normally pay salaries only to Danish bank accounts. To receive your salary efficiently, you will typically need:

NemKonto is a system that designates one of your bank accounts as the default account for payments from public authorities, such as tax refunds, SU (student grants), family benefits and other social benefits. You can assign or change your NemKonto online using your MitID once your CPR number and bank account are active. Without a CPR number, you cannot set up a NemKonto, and you may experience delays or complications in receiving public payments.

Online banking, payment cards and MitID

Your CPR number is also central to accessing digital banking services. Banks use it to create your customer profile and to link your online banking and payment cards to your identity. To log in to most Danish online banking platforms, you must use MitID, the national digital ID solution that is itself tied to your CPR number.

After opening an account, banks typically offer:

Without a CPR number, you generally cannot obtain MitID in the standard way, which makes it difficult to use full-featured online banking services in Denmark.

Bank accounts without a CPR number

Some banks may offer limited banking solutions to customers who do not yet have a CPR number, such as non-resident accounts or special accounts for short-term stays. However, these are exceptions and often come with restrictions, for example:

Because of strict AML rules, banks can refuse to open an account if they cannot adequately verify your identity or understand your financial situation. In practice, obtaining a CPR number first will significantly increase your chances of being accepted as a customer and will give you access to standard Danish banking products.

CPR number, tax reporting and interest income

Danish banks automatically report financial information linked to your CPR number to the Danish Tax Agency. This includes:

Interest income from bank deposits is generally taxed as capital income. For individuals, capital income is included in your total taxable income and is subject to the same progressive tax system as other income, with a basic personal allowance and higher marginal rates for higher income levels. Because all data is reported under your CPR number, your annual tax assessment (årsopgørelse) is usually pre-filled and available in your online tax account.

Security, data protection and your CPR number at the bank

Danish banks must protect your personal data, including your CPR number, under data protection legislation and financial regulation. Your CPR number is used internally for identification and reporting, and banks are not allowed to disclose it to third parties without a legal basis or your explicit consent.

You should never share your CPR number, MitID codes or online banking credentials in response to unsolicited emails, phone calls or text messages. If you suspect that your CPR number or banking details have been misused, contact your bank immediately and consider reporting the incident to the relevant authorities.

In summary, the CPR number is the key to fully functioning banking in Denmark. It enables you to open a standard bank account, receive salary and public payments, use NemKonto and access secure online banking with MitID. For anyone planning to live, work or study in Denmark, obtaining a CPR number early is essential for smooth access to Danish banking services.

Protection of Personal Data and Misuse of the CPR Number

The Danish CPR number is a key to almost all interactions with public authorities and many private companies. Because it is used so widely, protecting your personal data and preventing misuse of your CPR number is crucial. Danish rules on data protection are strict, but you also have an active role in keeping your CPR number safe.

Legal protection of your CPR number in Denmark

In Denmark, the CPR number is protected under the Danish Data Protection Act and the EU General Data Protection Regulation (GDPR). The CPR number is classified as personal data, and in many situations it is treated similarly to sensitive data because it can be used to identify you directly and link information across different systems.

Public authorities and private companies may only process your CPR number when there is a clear legal basis. Typical legal grounds include a statutory obligation (for example for tax, social security or health care), performance of a contract (such as salary payment or banking services) or your explicit consent. Organisations must limit access to your CPR number to staff who genuinely need it and must store it securely, often in encrypted systems with access logs.

When it is legitimate to share your CPR number

In everyday life in Denmark, you will be asked for your CPR number in many situations. It is normally legitimate and expected to provide your CPR number to:

In these cases, the organisation is usually required by law to use your CPR number to identify you correctly and to exchange information with other authorities. They must inform you why they need your CPR number and how it will be used.

When you should be cautious

You should be careful about giving your CPR number in situations where it is not clearly necessary. Be especially cautious if:

In these cases, ask why your CPR number is needed, how it will be stored and whether there is a legal requirement to collect it. If the explanation is unclear or seems unnecessary, you can refuse to provide your CPR number and, if needed, choose another provider.

How organisations must protect your CPR number

Organisations in Denmark that process CPR numbers must implement technical and organisational security measures. This typically includes:

If an organisation fails to protect CPR numbers properly, the Danish Data Protection Agency (Datatilsynet) can issue orders, bans or fines, and in serious cases the police can become involved.

Typical forms of misuse and identity theft

Misuse of a CPR number usually happens together with other personal data, such as your name, address, login details or copies of ID documents. Common forms of misuse include:

On its own, the CPR number is usually not enough to complete these actions, but it is an important piece of information for criminals. This is why you should treat your CPR number as confidential and combine it with good digital security habits.

How to protect your CPR number in daily life

There are several practical steps you can take to reduce the risk of misuse:

Your rights regarding your CPR number and personal data

Under GDPR and Danish law, you have several rights in relation to your CPR number and other personal data. You can:

Organisations must respond to your requests within a reasonable time and normally free of charge. They must also inform you if they suffer a data breach that is likely to result in a high risk to your rights and freedoms, for example if your CPR number and other key data have been exposed.

Public registration and confidentiality

Your CPR number itself is not publicly available, but some information linked to it, such as your name and address, can in certain cases be accessed through public registers. If you have special protection needs, you can apply for address protection (navne- og adressebeskyttelse) through your municipality. This limits how your address is shown in public registers and can provide an extra layer of safety in sensitive situations.

By understanding how the CPR number is used in Denmark, knowing when it is appropriate to share it and taking simple precautions, you can significantly reduce the risk of misuse and protect your personal data while still benefiting from the efficiency of the Danish digital and administrative systems.

What to Do if You Lose Your CPR Card or Suspect Identity Theft

If you lose your CPR card (the yellow health card) or suspect that someone is misusing your CPR number, you should act quickly. The CPR number is a key identifier in Denmark and is used for healthcare, banking, tax, digital services and many other areas. Prompt action can limit the risk of fraud and protect your rights.

1. Losing your CPR card (yellow health card)

If your CPR card is lost, stolen, damaged or never arrived, you should order a new one as soon as possible. The card itself is not an identity document like a passport, but it contains your CPR number and address, so it should be protected.

You can usually order a replacement card in one of the following ways:

When ordering a new card, you normally pay a fee for replacement if the card was lost or damaged. If you have changed address or name, a new card is usually issued without a fee in connection with the registration of the change. The new card is sent to your registered address in Denmark.

If your card was stolen together with other documents (for example passport, residence permit or payment cards), you should also report the theft to the police. This is particularly important if the theft happened together with a burglary or robbery.

2. First steps if you suspect misuse or identity theft

If you believe someone is using your CPR number without your consent, or you notice unusual activity related to your personal data, you should take immediate steps to limit the damage.

  1. Document what has happened
    Save emails, letters, screenshots and any other evidence of suspicious activity, such as:
    • Unexpected letters about loans, subscriptions or purchases in your name
    • Notifications from banks or authorities about changes you did not request
    • Digital post in e-Boks regarding agreements you do not recognise
  2. Contact your bank and payment card providers
    Inform your bank immediately if you suspect that your CPR number has been used to open accounts, apply for credit or access your existing accounts. Ask the bank to:
    • Check for new loans, credit cards or accounts opened in your name
    • Block or limit access to products that may be misused
    • Issue new payment cards if necessary
  3. Change passwords and secure your digital access
    If you suspect that someone has gained access to your MitID, email or other digital accounts, change your passwords immediately. Use strong, unique passwords and enable two-factor authentication where possible. If you think your MitID has been compromised, contact your bank or the MitID support line to get help with blocking or reissuing your MitID.

3. Reporting identity theft and misuse of your CPR number

Suspected identity theft or serious misuse of your CPR number should be reported to the Danish police. You can normally file a report online or at a police station. Provide as much documentation as possible, including copies of contracts, letters, bank statements and screenshots.

In addition to the police, you may need to contact other authorities:

When you dispute contracts or financial products, do so in writing and keep copies of all correspondence. Ask the companies to confirm in writing that the disputed agreements will be investigated and, if confirmed as fraud, cancelled or corrected.

4. Monitoring your CPR-related information

After a suspected misuse of your CPR number, you should monitor your information more closely for a period of time. This includes:

If you discover new irregularities, contact the relevant institution immediately and refer to your previous report of identity theft or misuse.

5. Protecting your CPR number in everyday life

To reduce the risk of future misuse, handle your CPR number carefully:

Remember that many procedures in Denmark can be handled securely via MitID and official digital self-service solutions. Using these channels reduces the need to share your CPR number in less secure ways and helps protect you against identity theft and misuse.

CPR Number and Children Born in Denmark

Children born in Denmark are registered in the Danish Civil Registration System (CPR) shortly after birth. This registration gives the child a CPR number, which is essential for access to healthcare, vaccinations, daycare, schooling, social benefits and later on for banking, NemID/MitID and tax matters. The way the CPR number is assigned and the procedure you must follow depends on whether the birth takes place in a Danish hospital or at home, and whether the parents are registered residents in Denmark.

How and when a newborn receives a CPR number

If the child is born in a Danish hospital or at a registered Danish birth clinic, the birth is reported electronically to the CPR register. In most cases, the CPR number is created automatically within a few days after the birth is registered. The parents do not need to apply separately for the CPR number if:

For home births, the midwife or doctor must report the birth to the authorities. Once the birth is registered, the CPR number is generated in the same way as for hospital births. If the parents are not registered residents in Denmark, or if there is missing information (for example, no valid address), the municipality may ask the parents to submit additional documentation before assigning a CPR number.

Structure of the CPR number for children

The CPR number for a child follows the same format as for adults: 10 digits in the form DDMMYY-SSSS. The first six digits indicate the child’s date of birth (day, month, year), and the last four digits are a sequence number that also determines the child’s legal gender in the CPR system (odd number for males, even number for females). The CPR number is unique and remains the same throughout the person’s life, even if the child later moves abroad or changes citizenship.

Registration of parents, custody and name

When a child is registered in the CPR system, information about the parents and custody is recorded at the same time. If the parents are married to each other and both are registered in Denmark, joint custody is normally registered automatically. If the parents are not married, the father or co-mother must normally acknowledge paternity/parenthood through a separate declaration to obtain joint custody and to be registered as a parent in the CPR system.

The child’s name is also linked to the CPR number. In Denmark, parents must register the child’s name within a fixed deadline set by the authorities. This is usually done digitally via self-service using NemID/MitID, or by contacting the local parish office (church) or the municipality if the parents do not have digital access. If the name is not registered within the deadline, the authorities may send reminders and, in some cases, register a default name based on the parents’ information.

CPR number and the yellow health card for children

Once the CPR number is created, the child is entitled to public healthcare on the same terms as other residents in Denmark, provided that at least one parent is legally resident and covered by the Danish health system. The child is assigned to a general practitioner (GP), and a yellow health insurance card is issued in the child’s name. The card is sent by post to the registered address. The health card is used for doctor visits, hospital treatment, vaccinations and other public health services.

For newborns, the first health card is issued automatically after registration. If the family moves to a new municipality or changes GP later, a new card is issued linked to the same CPR number.

Children born in Denmark to foreign parents

Children born in Denmark to foreign parents do not automatically acquire Danish citizenship solely by being born on Danish territory. Citizenship depends on the parents’ nationality and the rules on Danish nationality. However, the child can still receive a CPR number if the family is legally residing in Denmark or if the child needs to be registered for healthcare and other public services.

If the parents have a valid residence permit or right of residence in Denmark and are registered in the CPR system, the child will normally be registered and receive a CPR number in the same way as children of Danish citizens. If the parents are in Denmark on a short stay (for example, as tourists) and do not have residence in Denmark, the authorities will assess whether the child should be registered in the CPR system or only in health or hospital records. In such cases, the parents may need to contact the municipality or the Danish Agency for International Recruitment and Integration (SIRI) for guidance.

Children born abroad and later registered in Denmark

If your child is born outside Denmark and later moves to Denmark, the child will receive a CPR number when registered as a resident in a Danish municipality. The parents must present documentation such as a birth certificate, passports, residence permits or proof of right of residence. Once the municipality approves the registration, a CPR number is assigned and the child is included in the Danish health and social systems in the same way as children born in Denmark.

CPR number and access to daycare, school and social benefits

The CPR number is required to enrol a child in public daycare (vuggestue, børnehave) and school. Municipal waiting lists, digital applications and communication with institutions are all based on the child’s CPR number. Without it, it is usually not possible to apply for a place or receive municipal subsidies for childcare.

The CPR number is also used to administer family-related benefits, such as child and youth benefits and other social payments that may be available to families residing in Denmark. The authorities use the CPR register to verify the child’s age, residence and family relations when calculating and paying these benefits.

Data protection and use of a child’s CPR number

A child’s CPR number is protected personal data. Parents should only share it when necessary, for example with public authorities, healthcare providers, educational institutions, banks or other trusted entities that are legally entitled to use it. It should not be shared openly on social media, in unsecured emails or on websites. Misuse of a CPR number can lead to identity theft, even for minors, and may have long-term consequences.

What parents should do after birth

After a child is born in Denmark, parents should:

By ensuring that the child is properly registered in the CPR system from birth, parents secure access to healthcare, education and social rights in Denmark and avoid administrative problems later in the child’s life.

CPR Number and Students: Exchange and Full-Degree Programmes

For most international students, obtaining a Danish CPR number is essential to study, live and work legally in Denmark. Whether you come on a short exchange or a full-degree programme, the CPR number gives you access to public healthcare, a Danish bank account, many student jobs and most digital self-service solutions used by universities and public authorities.

Do students need a CPR number?

You generally need a CPR number if you stay in Denmark for more than 3 months (EU/EEA/Swiss citizens) or more than 3 months with a valid residence permit (non-EU citizens). Students on very short stays, such as summer schools or programmes under 3 months, normally do not qualify and must rely on private or home-country insurance and identification.

Universities, student housing providers and employers will often ask for your CPR number for enrolment, rental contracts and salary payments. Without it, your access to many services is limited and administration becomes more complicated.

Exchange students

Exchange students who stay in Denmark for at least one semester and register their residence are usually eligible for a CPR number. The process typically involves:

Many universities organise “International Days” or introduction weeks where representatives from the municipality help students book appointments or submit applications. However, you are personally responsible for ensuring that your residence registration and CPR application are completed correctly and on time.

Full-degree students

Full-degree students admitted to a Danish bachelor’s, professional bachelor’s, academy profession, master’s or PhD programme usually stay in Denmark for several years and are expected to register as residents. After arrival, the typical sequence is:

  1. Receive your residence permit (non-EU) or EU registration certificate (EU/EEA/Swiss)
  2. Sign a housing contract and move into your Danish address
  3. Register your address and apply for a CPR number at Borgerservice

Once registered, you will be included in the Danish Civil Registration System and receive a CPR number and a yellow health card. This number remains the same throughout your life, even if you later leave Denmark and return.

CPR number and access to healthcare for students

Students who obtain a CPR number and register as residents are covered by the Danish public healthcare system on the same terms as other residents. You will be assigned a general practitioner (GP) and receive a yellow health card, which you must bring to medical appointments. Public healthcare is financed through taxes, so you do not pay user fees for GP visits and most hospital treatment.

Students without a CPR number are not automatically covered by Danish public healthcare. EU/EEA students can often use the European Health Insurance Card for medically necessary treatment, while non-EU students usually need comprehensive private health insurance for the entire stay. Universities often require proof of adequate insurance as part of admission or enrolment.

CPR number, student jobs and tax

Many international students work part-time in Denmark. A CPR number is practically mandatory for legal employment, as employers must report salary and withhold tax through the Danish tax system. Without a CPR number, it is very difficult to be hired, receive salary or obtain the correct tax card.

Once you have a CPR number, you can register with the Danish Tax Agency (Skattestyrelsen) to obtain a tax card. Denmark has a progressive income tax system. As a student with a part-time job, you will typically pay:

All residents are entitled to a personal allowance (personfradrag) that is tax-free. For adults, this allowance is around DKK 49,700 per year. If your annual income from student jobs stays below this amount, you will normally not pay income tax, although the labour market contribution may still apply if you exceed certain levels. Correct registration of your expected income is important to avoid under- or overpayment of tax.

CPR number and SU (Danish student grants)

Danish citizens and certain EU/EEA citizens who meet specific work and residence requirements may be eligible for the Danish student grant (SU). A CPR number is required for any SU application and for payment of the grant. Eligibility rules for non-Danish citizens are strict and usually require stable attachment to the Danish labour market, such as working a minimum number of hours per week alongside your studies. The SU Agency checks your CPR-based records, including work and residence, when assessing eligibility.

Digital services for students: MitID, e-Boks and university platforms

With a CPR number, you can obtain MitID, the national digital ID used to log in to public services, tax, banking and many university systems. You will also receive a digital mailbox (e-Boks or Digital Post), where you get official letters from authorities, including the municipality, tax agency and sometimes your educational institution.

Many universities use your CPR number to synchronise data between student administration systems, exam registration, library access and public databases. Keeping your CPR-linked information up to date, especially your address and contact details, helps ensure you receive important messages about exams, residence permits and health coverage.

Housing, bank accounts and mobile subscriptions

Landlords, student housing organisations and utilities often ask for your CPR number when you sign a rental contract or register for electricity, internet or heating. While some student residences accept temporary arrangements before you receive your CPR number, you will usually need to provide it shortly after moving in.

Most Danish banks require a CPR number to open a standard current account (NemKonto) and issue a debit card. This account is needed for salary payments, SU, housing deposits and everyday expenses. Many mobile phone and internet providers also request a CPR number when you sign a subscription, although prepaid solutions may be available without one.

Students on short stays and special cases

Students on short-term programmes under 3 months, some trainees and participants in certain joint or double-degree schemes may not qualify for a CPR number if they do not register as residents. In these cases, you must rely on:

Some universities issue internal student IDs or temporary numbers for administrative purposes, but these are not the same as a CPR number and cannot be used with public authorities.

Updating and deregistering your CPR as a student

If you move to a new address in Denmark, change your name or marital status, you must update your information with the municipality so that your CPR record remains accurate. This is important for receiving post, maintaining healthcare coverage and ensuring correct tax and SU administration.

When you finish your studies and leave Denmark for more than 6 months, you are generally required to deregister from the Civil Registration System. Deregistration stops your public healthcare coverage and informs other authorities, such as the tax agency, that you are no longer resident. If you later return to Denmark for work or further studies, you may be registered again and keep the same CPR number.

CPR Number and Social Benefits (SU, Unemployment Benefits, Family Benefits)

The Danish CPR number is essential for accessing most public benefits and allowances. Without a valid CPR number and registration in the Danish Civil Registration System, you generally cannot receive study grants (SU), unemployment benefits or family-related benefits. Below you will find an overview of how the CPR number is used in practice for these schemes and which basic conditions typically apply.

CPR number and Danish study grant (SU)

The State Educational Grant and Loan Scheme (SU) is administered digitally and is directly linked to your CPR number. You use your CPR number to log in to the SU system, apply for grants and loans, and for all communication with the authorities.

To receive SU as a higher education or vocational student in Denmark, you must normally:

Your CPR number is used to check your income against the annual SU income limit. If your personal income exceeds the applicable SU income threshold for the year, SU may be reduced or you may have to repay part of the grant. The income check is automatic and based on tax information linked to your CPR number, so it is crucial that your tax and address details are correct in the system.

Unemployment benefits and the CPR number

Unemployment benefits in Denmark are mainly paid through unemployment insurance funds (a-kasser) and, in some cases, through municipal social assistance. In both systems, the CPR number is the key identifier used to assess your entitlement, calculate benefit amounts and pay out benefits.

To receive unemployment insurance benefits from an a-kasse, you must typically:

Your CPR number is used to coordinate information between the a-kasse, the Tax Agency (Skattestyrelsen), the job centre and other authorities. Salary income, holiday pay and other taxable income reported under your CPR number can affect the size of your unemployment benefits and the duration of your entitlement. If you move, start work or leave Denmark, you must update your information so that your benefits are calculated correctly and to avoid overpayments that may need to be repaid.

Family benefits and the CPR number

Several family-related benefits in Denmark, such as child and youth benefits and parental leave benefits, are based on data registered under your CPR number and the CPR numbers of your children and partner. The authorities use the CPR register to determine family relationships, residence and custody, which are central for deciding who is entitled to receive the benefits.

For child and youth benefits, the CPR number is used to:

For parental leave benefits, your CPR number is used to link your employment and income history with your leave periods. The authorities use information reported by your employer under your CPR number to calculate the benefit amount. Changes in your employment, salary or address must be reported and updated in the CPR register and relevant systems to ensure correct payment.

Why accurate CPR data matters for social benefits

Because almost all social benefits in Denmark are calculated and paid automatically based on information linked to your CPR number, it is essential that your personal data is up to date. Incorrect address, marital status, employment information or missing deregistration when leaving Denmark can lead to:

If your situation changes – for example, you move, start or stop work, have a child, get married or leave Denmark – you should update your details in the CPR register and inform the relevant authorities or benefit providers. This ensures that your rights to Danish social benefits are assessed correctly and that payments are made without unnecessary complications.

Deregistration from the CPR Register When Leaving Denmark

When you move away from Denmark, you are required to deregister from the Danish Civil Registration System (CPR). Deregistration ensures that your address, tax status and access to public services are correctly updated, and that you are not incorrectly taxed or insured as a Danish resident after you have left.

When you must deregister from the CPR

You must deregister if you intend to live outside Denmark for more than 6 months. If you move to Greenland or the Faroe Islands, this is also treated as moving abroad for CPR purposes. Shorter stays abroad, for example a few months of travel or temporary work while keeping your home in Denmark, normally do not require deregistration, provided Denmark remains your main place of residence.

If you are unsure whether your stay abroad counts as a move, the authorities assess factors such as the length of stay, where your family lives, where you work and where you have your permanent home. In doubtful cases, you should contact your local municipality (kommune) for guidance.

How to deregister before leaving Denmark

Deregistration is handled by the municipality where you are registered. In most cases you can report your move abroad digitally via self-service on borger.dk using MitID. You will be asked to provide your new country of residence and the date you are leaving Denmark. If you do not have digital access, you can contact your municipality’s citizen service (Borgerservice) and complete the move on paper or in person.

You should deregister as close as possible to your actual departure date. If you deregister too early or too late, it can affect your tax assessment, health insurance coverage and access to benefits. The municipality will update the CPR register with your move abroad and, where relevant, share information with other public authorities such as the Danish Tax Agency (Skattestyrelsen).

What happens to your CPR number after deregistration

Your CPR number is not cancelled when you leave Denmark. It remains your personal identification number for life and will be reactivated if you later return and register as a resident again. However, once you are deregistered as living abroad, you are no longer considered resident in Denmark for purposes such as municipal services, public healthcare coverage and most social benefits.

Even while living abroad, your CPR number may still be used in specific situations, for example if you have ongoing tax matters in Denmark, Danish pension payments or certain types of income from Danish sources. It is therefore important to keep relevant authorities informed of your current address abroad.

Impact on healthcare and the yellow health card

When you deregister from the CPR, your entitlement to Danish public healthcare as a resident normally ends on the date of departure. Your yellow health insurance card (sundhedskort) is no longer valid, and you must rely on health coverage in your new country of residence or private insurance. You should not use the Danish health system for non-acute treatment after deregistration, except in limited situations covered by EU rules or specific agreements.

If you move to another EU/EEA country or Switzerland and receive a Danish state pension or certain other benefits, special coordination rules may apply to your health coverage. In such cases, you should contact Udbetaling Danmark or your municipality before leaving to clarify your rights.

Tax consequences of leaving Denmark

Deregistration from the CPR does not automatically mean that all tax obligations in Denmark end. Your tax status depends on whether you are considered fully tax liable (unlimited tax liability) or only tax liable on Danish-source income (limited tax liability). When you move abroad and give up your home in Denmark, you will usually cease to be fully tax liable from the date you no longer have a permanent home here.

If you keep significant ties to Denmark, such as a home available for your use, a spouse or minor children living in Denmark, or substantial business activities, you may remain fully tax liable even after deregistration. It is therefore important to inform the Danish Tax Agency about your move abroad and submit the relevant tax forms, for example when filing your final tax return for the year you leave.

Income from Danish sources, such as salary for work performed in Denmark, rental income from Danish property, certain pensions or dividends, may still be taxed in Denmark under Danish law and applicable tax treaties. In many cases, double taxation agreements between Denmark and your new country of residence determine where and how your income is taxed.

Social benefits, SU and unemployment insurance

Most Danish social benefits are linked to residence in Denmark. When you deregister from the CPR, ongoing benefits such as housing benefits, child benefits, social assistance or SU (state education grant) will normally stop, unless specific cross-border rules apply. You must notify the relevant authorities or institutions about your move abroad to avoid incorrect payments and later claims for repayment.

If you are a member of a Danish unemployment insurance fund (a-kasse), you should contact your a-kasse before leaving Denmark. EU/EEA rules may allow you, under certain conditions, to transfer unemployment benefit rights to another EU/EEA country for a limited period, provided you obtain the necessary documentation before departure.

Practical steps before you leave

Before moving abroad, it is advisable to:

Taking these steps helps ensure that your CPR registration, tax status and access to services reflect your actual situation, reducing the risk of tax issues, loss of rights or demands for repayment later on.

CPR Number and Temporary Stay in Denmark

The CPR number is not issued for temporary stays in Denmark, such as for seasonal work. In these cases, a kildeskattenummer (tax number for withholding income tax) is sufficient. This number is connected to the CPR number of the employer hiring you in Denmark. To obtain this number, you must submit the necessary application to the tax office corresponding to your workplace.

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