National ID number and D number

Most people who are in contact with Norwegian authorities will sooner or later need a national ID number or a D number.

Let us take a closer look at what the numbers are composed of, to whom they are assigned and the procedure for being assigned one of these numbers.

National ID number

Everybody registered as resident in Norway has an 11-digit national ID number that identifies them. The national ID number is assigned by the National Registry. The composition of the national ID number is as follows: The first six digits consist of the person’s birth date in this order: day, month, year. This is followed by three digits which comprise an individual number, where the third digit indicates the sex. An even numbers indicates female and an odd number indicates male. The last two digits are check digits.

To whom will a national ID number be assigned?

    • Everybody who is born in Norway, even if the child’s parents are not registered as resident in Norway.
    • All immigrants to Norway who plan to stay in the country for at least six months. For this a residence permit is required.
    • Norwegian citizens born abroad

D number

In some cases the requirements for assignment of national ID number have not been met, but the person may still need a number which can identify him or her to Norwegian authorities. Examples of this may be purchase of real estate or taxable work. In such cases the person will be assigned a D number.

A person, employer or organization may not themselves request a D number. This has to be done through an approved applicant of D number, depending on what the D number is needed for. If it is for somebody who will work in Norway, the Tax administration will request the D number as part of assigning a tax deduction card. The person who needs the D number must meet at a Tax Administration office to present his or her passport and work contract. If the need is linked to opening a Norwegian bank account, however, it is the bank that will request a D number. It is therefore the purpose of acquiring the D number that determines who will request it.

A D number can be assigned to people who do not reside in Norway, but will stay in Norway for less than six months and have a defined need like:

  • A direct link to Norway, like being taxable to Norway
  • Being a customer in a Norwegian bank
  • Having an account in the Norwegian CSD
  • Receiving Social Security benefits from Norway
  • Being the owner of real estate in Norway
  • Holding positions in Norwegian entities or for other reasons being registered in The Register of Business Enterprises or the Register of Mortgaged Moveable Property         

D number and falsified ID

In recent years it has been discovered that falsified ID documents from several EU countries have been used in connection with the requisition of D number. This has mostly been seen in banks and in dealings with the Tax Administration, but also with other applicants.

In Region East of the Tax Administration alone around 500 cases of assignment of D number based on falsified ID documents have been discovered in recent years. There is reason to believe that the real number is substantially higher, but since only D number applications as far back as 2008 have been archived, investigation of older cases is challenging.

Often passport and ID documents will be checked as part of requesting D number by personnel who have not been trained in document check. In most cases where a D number has been assigned on the basis of falsified documents, the holder of the document has stated that he or she intended to stay in Norway for less than three months. In such cases EEA regulations do not require that the applicant be in any form of direct contact with immigration authorities like the police or the Directorate of Immigration. Typically the person has opened an account in a Norwegian bank and then acquired a bank ID card with photo. This card has then been used whenever the holder has needed to document his identity. In this way the holder has laundered his identity and been able to acquire a genuine ID document. In such cases the chances are small that the authorities discover that the D number has been obtained on the basis of falsified information.