UK’s National Insurance Number

In order to work in the UK, you must apply for a National Insurance number.

To do this, please call Jobcentre Plus. This is the UK’s national insurance number allocation service.

You should only apply for a NI once you are in the UK and looking to work.

Telephone number: 0345 600 0643

Opening times: Monday – Friday, 8am – 6pm

Working without a National Insurance number

You can start work before your National Insurance number arrives if you can prove you can work in the UK. You should tell your employer that you’ve applied for one, and give it to them when you have it.

National Insurance number interview

Jobcentre Plus may write to you and ask you to come to an interview where you’ll be asked about your circumstances and why you need a National Insurance number.

The letter will also tell you which documents to bring to prove your identity, such as:

  • passport/identity card
  • residence permit
  • birth/adoption certificate
  • marriage/civil partnership certificate
  • driving licence

You’ll be told at the interview how long it’ll take to receive your National Insurance number.