Swedish personal identity number

The personal identity number is obtained when a person is entered in the Swedish population register by the Swedish Tax Agency. It is widely used for everyday purposes in Swedish society such as setting up memberships and subscriptions, establishing a banking relationship with a Swedish bank etc.

What is it and what is it used for?

The personal identity number is a 4-digit number following your date of birth in the format: YYMMDD-XXXX.

It is obtained when you are registered in the Swedish population register. It is widely used for everyday purposes in Swedish society such as setting up memberships and subscriptions, establishing a banking relationship with a Swedish bank, joining an insurance plan and will entitle you to the same patient fees as Swedish citizens for most public health care. You need to have a personal identity number to apply for a Swedish ID-card at the Tax Agency.

Temporary registration number (“T-number”)

The personal identity number issued by the Tax Agency should not be confused with the temporary registration number, a 4-digit number following your date of birth containing the letter ‘T’, given to you by KTH when you were admitted. Format of T-number: YYMMDD-TXXX

Who can apply?

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 identity number from the Swedish Tax Agency, Skatteverket. You need a registration certificate in order to prove that you are enrolled as a student in Sweden. Consequently, you can not apply before you have registered as a student at KTH at the beginning of the semester (end of August).

Students admitted to one or two semesters (= less than 12 months permission on your decision/residence permit) cannot apply for a personal identity number.

How to apply

If you are eligble to apply for a personal identity number we recommend you visit the Swedish Tax Agency website. ,

Read more about the Swedish personal identity number and how to apply

After obtaining your personal identity number

When you have obtained your personal identity number please send an email to studentdata@kth.se  to make sure your temporary registration number is updated in the KTH database of student records (Ladok).

Please state:

  • Your name
  • Current temporary student registration number listed in Ladok (see above)
  • Your new 10-digit Swedish personal identity number
  • Your study programme

Report any changes

If you have obtained a Swedish personal identity number it is your legal duty to report any changes to the Swedish Tax Agency. Changes such as moving to a new address (within Sweden) needs to be notified within a week. Registering your new address is free of charge, and can easily be done on the website using the Tax Agency's e-services. 

Report a change of address at the Swedish Tax Agency website 

It is also your legal duty to inform the Swedish Tax Agency when leaving Sweden/moving abroad again, in order to be de-registered from the population register. This is called civil de-registration. To do this, download the form Notification Moving abroad SKV 7665  from the Swedish Tax Agency’s webpage.

Find out more about civil de-registration at the Swedish Tax Agency website .