What is a National Insurance number?

Your National Insurance number (NINO) is unique to you and remains the same throughout your life. It ensures that the National Insurance contributions and Income Tax you pay are correctly recorded under your name. It also serves as a reference number when dealing with the Department for Work and Pensions (DWP) and HM Revenue and Customs (HMRC).

UK citizens who have always lived in the UK should automatically receive a National Insurance number just before their 16th birthday.

How do I apply for one, if I don't already have one?

The easiest way to apply for a National Insurance number is online. Visit the gov.uk website, follow the instructions, and click the green 'Apply' button at the bottom of the page.