8. National Insurance Number
You should receive a letter with your National Insurance Number on it just before you turn 16 years old.
This is a really important piece of information so it is important to keep it safe.
It’s unique to you and you will keep the same number all your life. It makes sure that the national insurance contributions and tax that you pay are properly recorded against your name so you will need this number when you start work or if you need to claim benefits.
Call the National Insurance Numbers helpline if you didn’t get one on 0300 200 3502.