Sooner or later a Swedish form will ask for a number you don’t have. Here is what the personnummer is, why the whole country is built around it, who actually gets one, and the workaround for each wall a visitor runs into.
When you need this
A Swedish website has a mandatory personnummer field and won’t let you continue. A gym, a supermarket loyalty club or a library asks for your “Swedish ID number”. You’re moving to Sweden for a year or more and want to know when you’ll get one. Or you have a coordination number and can’t work out why BankID still says no.
What the number is
The personnummer (personal identity number) is set by Skatteverket, the Swedish Tax Agency, for everyone in the population register. The law defines it precisely:
| Part | Digits | What it means |
|---|---|---|
| Birth date | YYMMDD | Year, month and day of birth |
| Separator | - or + | A hyphen, which becomes a plus sign in the year you turn 100 |
| Birth number | three digits | The last of the three is odd for men and even for women, by legal gender |
| Check digit | one digit | Calculated by machine from the other nine, so typing errors are caught |
Forms often ask for twelve digits instead, with the year in full (YYYYMMDD-NNNN), because computer registers store the year with four digits where needed. One surprise: the birth date in a personnummer isn’t always the real birthday. If a date runs out of birth numbers, Skatteverket uses a nearby day of the month.
Sweden introduced the number in 1947 and added the check digit in 1967.
Why everything asks for it
One stable number per person links every register: tax, healthcare, schools, passports, driving licences, and company customer databases too. Statistics Sweden describes it as an unambiguous, easy-to-handle way to identify a person. Once the state ran on it, private systems were built on the same assumption.
The most important of these is BankID, the e-ID Swedes use to log in almost everywhere. Banks issue it only against a personnummer, and BankID in turn powers Swish, the payment app. That chain is why one missing number closes so many doors at once (see BankID for visitors).
There is one legal brake. Under Swedish data-protection law, a personnummer may be processed without consent only when that is clearly justified by the purpose, the importance of secure identification or another legitimate reason. In practice, if a shop asks for your number on a form where it plainly isn’t needed, it’s fair to ask for another option.
Who gets one, and who doesn’t
A personnummer comes with folkbokföring, population registration. The test is forward-looking:
- The one-year rule: you are registered if you can be expected to spend your nights in Sweden regularly for at least a year. “Regularly” means at least once a week in normal life.
- Permit first: a foreigner who needs a right of residence or a residence permit is registered only once they have it.
- Report on time: if you have moved in and should be registered, you must report it to Skatteverket within one week after you have been in Sweden for three months. Not reporting is a crime (folkbokföringsbrott), though minor cases go unpunished.
- In person: you appear at Skatteverket for an identity check with your passport or ID card, plus your residence permit card if you have one.
So a holiday, a long trip or a summer house doesn’t earn you a number, however many weeks you’ve spent here. A working holiday rarely does either, because the permit lasts at most a year (see working holiday visa). Diplomats are generally outside the register, and people on temporary protection are not registered if they’re expected to stay under three years on that permit, with exceptions.
Personnummer vs samordningsnummer
People who aren’t registered but still deal with Swedish authorities get a samordningsnummer (coordination number) instead. It looks exactly like a personnummer, except that 60 is added to the day of birth.
| Personnummer | Samordningsnummer | |
|---|---|---|
| Who | People registered as living in Sweden | People who are not and have never been registered |
| How it looks | YYMMDD-NNNC | Same, day of birth + 60 |
| BankID | Yes, from a Swedish bank | No |
| 1177 login | Yes, with BankID or Freja+ | No |
| Online police report | Yes | Yes |
How to apply for a coordination number, and what it does for a bank account, is covered in coordination numbers and Swedish bank accounts.
Where visitors hit the wall, and the workaround
| The wall | Why | The workaround |
|---|---|---|
| BankID and Swish | Need a personnummer and a Swedish bank | Pay by card; see Swish for tourists |
| 1177.se login | Needs a personnummer plus BankID or Freja+ | Phone 1177 instead; see healthcare as a tourist |
| Seeing a doctor | It isn’t a wall | Clinics register you under a reservnummer, a substitute patient number |
| Monthly gym membership | Direct debit can require a personnummer, Swedish account and Swedish ID card | Single visit or trial at a staffed reception; see gyms in Sweden |
| Supermarket loyalty clubs | ICA’s Stammis is built around a personnummer | Coop lets you join in store without one, and ICA accepts a Swedish, Norwegian, Danish or Finnish address with limited benefits; see Swedish supermarkets |
| Library card online | Stockholm’s form asks for a personnummer | Ask at a library desk |
| Invoice checkout online | Klarna requires Swedish residence, a bank account and good credit history | Choose card payment |
| Prepaid SIM card | It isn’t a wall | Registration accepts a foreign passport or ID card |
Two rules cover everything else. First, look for a “no Swedish personal number”, “foreign customer” or date-of-birth option, and if there isn’t one, go to a staffed desk or phone. Your passport does the job the personnummer does for Swedes (see carrying ID in Sweden).
Second, never type in an invented or borrowed number. The check digit rejects most made-up numbers, and one that passes may belong to a real person.
Warning: Sites and sellers offering “BankID for foreigners” are not real. BankID needs a personnummer and a Swedish bank, and there is no other legitimate route.
What changes on 1 December 2026
The format isn’t changing. The provision that defines the number was last amended in 2009, and nothing in the act as amended through 2026 introduces a new format. What changes is the identity check:
- Registration: anyone registering after moving to Sweden must, on request, let Skatteverket take fingerprints and a facial image. Skatteverket may compare them with the passport, with its own register and, for people believed to be 14 or older, with Migrationsverket’s fingerprint and photo registers. From that date they are also kept in the population register, presumed secret. Until 1 December 2026 they are only compared with the passport chip and destroyed immediately.
- Coordination numbers: the same kind of biometric check applies to them from the same date.
- Sverige-id: the new state e-ID opens to Swedish citizens and to registered foreigners, giving new residents an alternative to BankID that doesn’t go through a bank.
Good to know: the biometric check at registration comes from Lag (2026:1450). Older pages may still describe the previous rule.
Practical information
| Item | What to know | Checked |
|---|---|---|
| Personnummer (via registration) | No fee mentioned in the law or on Skatteverket’s page | 2026-10-05 |
| Coordination number | No fee stated on Skatteverket’s pages | 2026-10-05 |
| Reservnummer for healthcare | Free; you pay only the region’s patient fee | 2026-10-05 |
| Sverige-id (from 1 December 2026) | The issuing agency may charge a fee; check Polisen | 2026-10-05 |
| Reporting a move to Sweden | Within one week after three months’ stay, then an identity check in person | 2026-10-05 |
FAQ
What is a Swedish personnummer?
It is Sweden’s personal identity number: your birth date as YYMMDD, a hyphen, a three-digit birth number and a check digit, ten digits in all. Skatteverket sets one for everyone registered as living in Sweden. Forms often want twelve digits with the full year. Authorities, banks, healthcare and many companies use it as the key to your records.
Can a tourist get a personnummer?
No. A personnummer comes with population registration, which requires that you can be expected to sleep in Sweden regularly for at least a year, and non-EU citizens also need a residence permit. A holiday, a summer house or a long trip does not qualify. Non-residents who deal with authorities can get a coordination number instead.
What is the difference between a personnummer and a samordningsnummer?
A personnummer is for people registered as living in Sweden. A samordningsnummer (coordination number) is for people who are not and have never been registered, such as short-term workers or property owners abroad. It looks the same, but 60 is added to the day of birth. Only a personnummer gets you BankID.
What do I do when a Swedish form asks for my personnummer?
Look for a foreign-customer or date-of-birth option first. If there is none, ask a staffed desk or phone the business. Never invent a number: the check digit rejects most made-up ones, and one that passes may belong to someone else. For healthcare, say you have no personnummer and you will get a substitute number.
Why do Swedish gyms and shops ask for a personnummer?
Because their memberships run on Swedish direct debit, BankID or credit checks, all built around the number. Some gym chains require a personnummer, a Swedish bank account and a Swedish ID card for monthly memberships. Single visits paid at reception, and in-store sign-ups at chains such as Coop, are the practical routes for visitors.
Is the Swedish personnummer format changing?
Not under current law. The format rule in the population-registration act was last changed in 2009, and the 2026 amendments add fingerprint and facial-image checks at registration from 1 December 2026, not a new number. The act, as amended through SFS 2026:1613, contains no new format, so any change would need new legislation.
Related guides
- Coordination numbers and Swedish bank accounts — the non-resident’s number, step by step
- BankID for visitors — the login wall the personnummer builds, and how to live without it
- Healthcare as a tourist — care on a reservnummer and what you pay
- Carrying ID in Sweden — why your passport does the personnummer’s job
- Long-stay rentals — landlords who expect BankID, and how to get around it
Facts verified 2026-10-05. Sources: Sveriges riksdag (Folkbokföringslag 1991:481, Lag 2022:1697, Lag 2018:218, Lag 2026:1358), Skatteverket, SCB, 1177, Västra Götalandsregionen, Polismyndigheten and the operators named — full register in this topic’s source file. This is general information, not legal advice. Found something outdated? Tell us and we’ll fix it.