Swedish personal identification number and ID card

The personal identity number consists of your date of birth, followed by an assigned 4-digit number in the following format: YYMMDD-XXXX.

On this page you can read about who can apply for a Swedish personal identification number, how to apply, how to get an ID card, how to inform KTH about your new personal identification number as well as your legal duties when you have obtained your personal identification number.

1. Apply for a Swedish personal identification number

International students who have a residence permit for at least 12 months or are admitted to studies for 13 months or more, can apply for a Swedish personal identification number from the Swedish Tax Agency. You cannot apply before you have registered as a student at KTH, since you need to include a registration certificate in your application. Course registration  for new students takes place after arriving to KTH.

Students admitted to one or two semesters, for example students who have a residence permit valid for 12 months or less, cannot apply for a personal identity number.

If you are eligible to apply, please visit the Swedish Tax Agency website for more information.

Documents and how to apply for the Swedish personal identity number (Swedish Tax Agency)

Interim personal identity number (T-number)

The personal identity number issued by the Tax Agency should not be confused with your interim personal identity number, also known as your T-number. The interim personal identity number is your unique number in the student documentation system and is assigned to you by KTH. It consist of your date of birth, followed by the letter T (in some cases, a different letter than T can occur) and three digits (YYMMDD-TXXX). 

Your interim personal identity number is limited to university administrative purposes, and cannot be used in contact with other authorities in Sweden. Upon arrival, after activating your KTH account you can find your interim personal identity number displayed in Ladok , at the bottom of the menu and in your transcripts and certificates.

2. Get your Swedish ID card

When you have received your Swedish personal identification number, you have to apply for a Swedish ID card via the Swedish Tax Agency. The Tax Agency ID card is an approved form of identification in Sweden. Your ID card is used as proof of your age and identity at places such as KTH, banks, pharmacies and health care clinics.

Please note that if you have a Swedish personal identification number, you also must have a Swedish ID card to identify yourself at KTH, for example when taking exams.

Apply for a Swedish ID card (Swedish Tax Agency)

3. Inform KTH about your personal identity number

It is your duty to inform KTH when you have received your Swedish personal identity number. Please report your information via the form below.

Inform us about your Swedish personal identity number

Your legal duties

If you have a Swedish personal identity number and move within Sweden, it is your legal duty to report your new address to the Swedish Tax Agency.

Report a change of address (Swedish Tax Agency)

It is also your legal duty to inform the Swedish Tax Agency when moving out of Sweden, in order to be de-registered from the population register. This is called civil de-registration.

Inform about your departure (Swedish Tax Agency)

Do you have any questions?

If you have any questions about the Swedish personal identity number, please contact The Swedish Tax Agency.

Contact information for the Swedish Tax Agency