SOFI/BSN identification number

The BSN citizen service number “burgerservicenummer” (equivalent to the Polish PESEL) is a unique personal number allocated to every individual by local Gemeente Office. As it is assigned to a person permanently, any changes reported to the Gemeente will be automatically updated.

BSN was introduced on November 26, 2007 as a replacement for SOFI number. The BSN consists of the same digits: the only change is the name.

You can obtain BSN number:

  • with the help of your employer – in case you came to work in the Netherlands or
  • upon personal registration in Gemeente Office.

If you are a Polish citizen who has worked in the Netherlands, you are married or in a registered partnership and you want to claim your tax relief or settle taxes jointly with your fiscal partner, you are required to request BSN/SOFI number for your partner as well.* In such case the procedure of obtaining the number might take longer, but registration in person is not required.

* According to the Dutch law, fiscal partners are people who:

  • are married or have a registered partnership or
  • are registered at the same address and:
  1. have a common child or
  2. have a combined pension scheme or
  3. are the joint owners of the property or
  • were fiscal partners in the previous year.

Please provide us with the following information to request BSN number for your fiscal partner:

  • Personal data – on a special form;
  • Color copies of your IDs;
  • Marriage certificate on EU form or notary act of joint property ownership;
  • Certificate of registered residence at the same address.

Please feel free to contact us for further information.


Dutch Tacx Claim
Responsive Menu Clicked Image