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National insurance contributions (NIC) - How do I get a national insurance (NI) number?

National insurance is a tax on your earnings. This guide covers some basic information about NIC.

How do I get a national insurance (NI) number?

If you are looking for work, starting work or setting up as a self-employed person, you will need a . You can apply online for a national insurance number.

Once your application is successful, you will receive a letter confirming your NI number. Take good care of this as it is your reminder of your NI number and you will need to use it when you contact HM Revenue and Customs (HMRC) or the Department for Work and Pensions (DWP). As soon as you have your NI number, you should tell your employer.

Reviewed: January 2022

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