If you're moving to Denmark, the CPR number is the first piece of bureaucracy you'll encounter — and arguably the most important. Without it, you can't see a doctor, open a full bank account, get paid properly, or access any public service. This guide explains what it is, who needs one, and exactly how to get it.

What is a CPR number?

CPR stands for Det Centrale Personregister — the Central Person Register. It's a national database that has tracked every resident of Denmark since 1968. When you register as a resident, you're assigned a unique 10-digit personal ID number: your CPR number.

The format is DDMMYY-XXXX — the first six digits are your date of birth, and the last four are a unique identifier. The final digit indicates gender: odd numbers for men, even numbers for women. You'll use this number constantly — for your doctor, your bank, your employer, the tax authority, and essentially any interaction with Danish institutions, public or private.

Who needs a CPR number?

You need to register for a CPR number if you plan to stay in Denmark for more than three consecutive months and have a place to live. The specific rules depend on where you're from:

EU/EEA/Swiss citizens must register once they've been in Denmark for three months. You'll need an EU residence document (EU-opholdsdokument) from SIRI before you can get your CPR number.

Non-EU citizens need a valid residence permit or approval letter from SIRI or the Danish Immigration Service before registering. You must register within five days of taking up a Danish address.

Nordic citizens (Norway, Sweden, Finland, Iceland, Faroe Islands) can stay up to six months before needing to notify authorities, but should register promptly after arrival. Bring your Nordic civil registration number if you have one.

Short-stay workers staying fewer than three months don't get a full CPR number — they get a personal tax number (personligt skattenummer) instead, issued by SKAT. This uses the same 10-digit format but is for tax purposes only. If you later move to Denmark permanently, it converts automatically to a full CPR number.

Important: You can only apply for a CPR number after you've arrived in Denmark and have an actual address. Applications before arrival are not accepted.

What does a CPR number unlock?

The CPR number is the key to almost every Danish service:

What documents do you need?

Gather these before you apply. Requirements vary slightly by your nationality, but for most people:

How to register — step by step

Step 1: Make sure your EU residence document or permit is ready EU citizens must have their EU-opholdsdokument from SIRI before applying. Non-EU citizens need their residence permit. Don't book a CPR appointment before this document is in hand.

Step 2: Submit an online application In Copenhagen and 37 partner municipalities, apply through International House Copenhagen (IHC). Outside the capital, apply through your local Borgerservice (Citizen Service Centre). Upload all required documents and make sure your email address is correct — appointment invitations are sent by email only.

Step 3: Wait for your appointment invitation Processing typically takes 2–3 weeks. You'll receive a personalised booking link by email. This link is unique to your case — don't share it.

Step 4: Attend your in-person appointment Bring all original documents. At most locations outside Copenhagen, your CPR number is issued the same day as your appointment. In Copenhagen, IHC handles online pre-processing — the number is usually issued at the appointment itself.

Tip: If you're in the Copenhagen area, International House Copenhagen is the most efficient route — SIRI, CPR registration, MitID setup, and your tax card can all be handled in a coordinated sequence at the same location. The service is free.

Step 5: Receive your yellow health card Your sundhedskort arrives by post about 2–4 weeks after registration, with your assigned GP's name and address. Carry it with you whenever you see a doctor or dentist.

What comes after your CPR number?

Once registered, do these in order:

  1. Set up MitID — you can do this at your CPR appointment or at Borgerservice. You'll need it for everything else.
  2. Activate Digital Post (e-Boks) — official correspondence will start arriving here. Don't ignore it.
  3. Open a bank account and register your NemKonto — so your salary and any benefits can be paid correctly.
  4. Get your tax card — your employer needs this to apply the right tax rate. Apply via skat.dk.

A note on privacy

Your CPR number is sensitive personal information. Never share it with anyone who doesn't have a clear, legitimate reason to need it. Danish GDPR rules (based on Databeskyttelsesloven, LBK 289/2024) give you rights to access, correct, and request deletion of personal data held about you. If you have concerns about how your data is being used, contact the relevant organisation directly first; if unresolved, you can file a complaint with Datatilsynet (datatilsynet.dk).

Still have a document you don't understand?

Letters from SIRI, official registration documents, and residency permits can be dense. If you've received a document you're not sure about, upload it to Elify and get a plain-language summary of what it says, what it's asking of you, and what you need to do next.

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