Call Jobcentre Plus to apply for a National Insurance number.
You must have the right to work or study in the UK to get a National Insurance number.
Jobcentre Plus - National Insurance number allocation service
Telephone: 0345 600 0643
Monday to Friday, 8am to 6pm
Welsh language: 0345 602 1491
Monday to Friday, 8:30am to 5pm
Find out about call charges
If you’re moving to the UK you can only apply once you’re here.
If you’ve lost your National Insurance number
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, eg:
- 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.
If you turned 16 and didn’t get a number
You should be sent a National Insurance number automatically just before your 16th birthday if you live in the UK.
Call the National Insurance numbers helpline if you didn’t get one and you’re under 20.
If you’re over 20 and haven’t been sent one, call the Jobcentre Plus application line.