Citizen service number

The citizen service number (burgerservicenummer, BSN) was introduced on 26 November 2007. The BSN will, in many cases, replace the tax and social security number (sofinummer). The BSN consists of the same digits as the tax and social security number.

Applying for a citizen service number

With effect from 6 January 2014, you can no longer apply to us for a tax and social security number. From now on, you will receive a citizen service number if you register with a municipality.

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What is a citizen service number (BSN)?

The citizen service number (BSN) is a unique number for everyone who has dealings with the Dutch government.

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Living abroad

If you were registered with a Dutch municipality on 26 November 2007, your tax and social security number was automatically converted into your citizen service number (BSN).

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You move to the Netherlands temporarily or permanently

If you come to the Netherlands for work or study purposes, you must register with a municipality.

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Have you lost your citizen service number (BSN)?

Have you lost your citizen service number (BSN)? You can find your BSN in a number of documents.

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