National Insurance numbers

1. register for or log in to your personal tax account to view or download, print, save or share a letter with it on.
2. fill in the online form and post it to us, if you’re unable to register for a personal tax account.

When was my NI number issued?

You usually get sent a National Insurance number (NINO) just before your 16th birthday. The government uses records for child benefit claims in order to identify children approaching their 16th birthday.

Can you work without National Insurance Number?

Is it illegal to work without an NI number? The NI number is not technically an HMRC requirement so therefore it is not illegal. Having an NI number will ensure you are on the correct tax code, pay the right tax and are able to apply for a tax refund at the year end, should you be owed one.

Where can I Find my National Insurance number?

You can find your National Insurance number on your payslip, P60, or letters about tax, pensions and benefits. You can also find it through your personal tax account and download a confirmation letter. If you still cannot find it, you can either: fill in form CA5403 and send it to the address on the form.

How is the National Insurance number used in the UK?

The National Insurance Number used in the UK is for the administration of the National Insurance system or social security system. It’s also used when calculating and administrating tax. The UK Government refer to the NI number as a “personal account number.”

How old do you have to be to get British National Insurance number?

All British citizens who are in the UK on their sixteenth birthday are issued with an NI number. If you are British and you have lost your National Insurance number or can’t remember it there are a three ways to retrieve it.

When do I get my NI number from HMRC?

It’s important to remember that HM Revenue and Customs (HMRC) will not tell you your National Insurance number over the phone. You can only receive your NI number through them by the post. A letter from HMRC should arrive within 15 working days. What is a National Insurance Number and why do I need it?