Your National Insurance Number: What It Is For, How to Apply and Finding a Lost Number

Your National Insurance number makes sure the tax and National Insurance you pay, and the credits you get, are recorded against your name. This course explains what the number is used for, who gets one automatically at 16, how to apply online if you need one, how to find a lost number, and how to keep it safe.

Tutwoo is an independent learning provider. This course gives general information about National Insurance numbers and is not tax advice. Always use the official GOV.UK services.

© 2026 Tutwoo UK Limited. This course was created in-house by Tutwoo and is our original work. It is for your own learning only: please do not copy, share, record or resell it.