Moving to Copenhagen to study is one of the best decisions you'll ever make. But somewhere between the acceptance letter and your first lecture, you'll run into a small string of ten digits that quietly controls your entire life in Denmark: your CPR number.
Without it, you can't open a Danish bank account, get a health card, set up MitID, sign a phone contract, or receive a salary from a student job. With it, the country suddenly works. So before you arrive, it's worth understanding exactly what a CPR number is, how to get one in Copenhagen, and, most importantly, the one detail about your housing that catches thousands of students off guard every single year.
This is your plain-English guide. No jargon, no assumptions, just the path from "newly arrived student" to "registered resident of Copenhagen."
6 min read · Updated 2026
In this guide
What is a CPR number?
CPR stands for Det Centrale Personregister, the Danish Civil Registration System. Your CPR number is a unique ten-digit personal identification number given to everyone who lives in Denmark. The first six digits are your date of birth, and the last four are a unique identifier.
Think of it as the master key to Danish society. Almost every official interaction, from healthcare and banking to taxes, your library card, and even your salary, runs through it.
By law, anyone planning to stay in Denmark for more than three consecutive months is required to have one. For most exchange and degree students, that means you.
Why every student needs one (and needs it quickly)
The CPR number isn't bureaucratic box-ticking. It unlocks the things you'll need in your first weeks:
- ✓ A Danish bank account, which you'll need to receive money, pay rent locally, and avoid foreign-transaction fees.
- ✓ The yellow health card (sundhedskort), your access to Denmark's public healthcare and your own GP. It arrives by post around four weeks after you're registered.
- ✓ MitID, Denmark's national digital ID. You'll use it to log into virtually every public service, your bank, and your university systems. You can apply for it at the same time as your CPR registration.
- ✓ A SIM card, gym membership, student job, public transport subscriptions. Most of these quietly ask for your CPR number too.
The sooner you're registered, the sooner Denmark stops feeling like an obstacle course.
The catch nobody tells you: your CPR is tied to your address
Here's the part that trips up more international students than anything else, so read it twice.
Read this before you sign anything
You can only get a CPR number if you have a legal Danish address where your landlord permits you to register.
When you apply, you have to prove where you live, normally with your rental contract or a signed housing confirmation. But not every address can be used for registration. The landlord has to allow you to register your address there with the authorities. Some landlords do. Some don't. Many short-term and holiday rentals, including a lot of Airbnb listings, do not allow it at all.
This isn't a technicality you can work around. Using an address you're not actually registered to live at is illegal in Denmark. If the place you're renting won't let you register, that place simply cannot give you a CPR number, no matter how perfect the apartment looks.
The consequences are real. There are well-documented cases of newcomers who signed for a room, discovered too late that it couldn't be used for CPR registration, and ended up losing bank access, job offers, and thousands of kroner in the process.
So the golden rule is simple: confirm CPR/address registration is allowed before you sign anything.
WHERE FLATTA FITS IN, HONESTLY
Flatta is a marketplace for furnished, medium-term apartments in Copenhagen, and you can message landlords directly through the platform. That means you can ask the one question that matters, "Can I register my address (CPR) here?", and get a clear answer from the landlord before you commit. We want to be completely straight with you: registration depends on the individual landlord, and Flatta can't guarantee that any specific listing allows it. What we can do is give you a place to search real, verified listings and a direct line to ask. Always get the landlord's confirmation in writing before signing.
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Once you've got an address that allows registration, here's the actual process.
Sort your residence basis first
Before you can register, you need the legal right to be in Denmark:
- EU/EEA/Swiss citizens apply for an EU residence document from SIRI (the Danish Agency for International Recruitment and Integration) at newtodenmark.dk.
- Non-EU citizens must first have a residence and/or work or study permit from SIRI.
Sort this out as early as you can. It's the prerequisite for everything that follows.
Book an appointment at International House Copenhagen
International students in Copenhagen register through the International Citizen Service (ICS East), located in International House Copenhagen at Nyropsgade 1, 1602 København V. The ICS also serves dozens of partner municipalities around the capital region, so it covers most students even if you live just outside the city.
You apply online and book an in-person appointment. One important note: you can only complete CPR registration after you've physically arrived in Denmark.
Bring the right documents
For your appointment, you'll generally need:
- ✓ A valid passport (or national ID for EU citizens)
- ✓ Your SIRI permit or EU residence document
- ✓ Proof of your Danish address, meaning your rental contract or a signed, dated housing confirmation with the full address
- ✓ Any marriage or birth certificates (with certified translations) if they're relevant to your situation
- ✓ For Nordic citizens, your home-country personal or social-security number
Make sure your proof-of-address document is filled in completely, dated, and signed. Incomplete paperwork is one of the most common reasons registrations get delayed, and you don't want to have to rebook.
Set up MitID and wait for your health card
At your appointment, you can usually apply for MitID at the same time. Do it, because you'll need it almost immediately. After you're registered, your yellow health card arrives by post in roughly four weeks, with your assigned GP printed on it. Once those ten digits are yours, the rest of Danish life starts clicking into place.
Before you sign anything: the one question to ask
If you take just one thing from this guide, make it this. Before you commit to any apartment, room, or studio in Copenhagen, ask the landlord directly:
"Will you allow me to register my address here for my CPR number?"
If the answer is anything other than a clear yes, keep looking. A beautiful apartment that can't give you a CPR number will cost you far more in stress, lost time, and missed opportunities than a plainer one that can.
This single question protects you from the most expensive mistake international students make in Denmark. It costs nothing to ask and it could save you everything.
Are you a landlord in Copenhagen? Help an arriving student land somewhere reliable. List your room, flat, or studio securely on Flatta.
List your apartment on FlattaKey takeaways
- ✓ A CPR number is the ten-digit key to living in Denmark. Banking, healthcare, MitID, salary, and more all depend on it.
- ✓ Anyone staying more than three months is required to have one, which includes almost all students.
- ✓ You can only register with a legal Danish address where your landlord permits registration. This is the single biggest pitfall, so confirm it before you sign.
- ✓ Register through International Citizen Service (ICS East) at International House Copenhagen, after sorting your SIRI residence document and arriving in Denmark.
- ✓ Bring your passport, residence document, and proof of address, apply for MitID on the spot, and expect your yellow health card within about four weeks.
Get the housing right, and the rest is genuinely straightforward.
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Rules and procedures can change, and your exact situation matters. Always confirm the current requirements with the City of Copenhagen's official CPR registration page before you act.
Sources: City of Copenhagen · International House Copenhagen · Copenhagen Business School · Life in Denmark (borger.dk) · SIRI / New to Denmark