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The National Insurance Number (NINo) is a number that proves you have the right to work in the UK when you’re looking for a job or starting as self-employed.
If you have a National Insurance Number, you must check that the contributions and tax are recorded against your name only. It’s made of two letters, six digits, and one letter at the end (for example, AB123456C). This combination of letters and numbers never changes.
Unsure where you can find your National Insurance Number? You can find it:
Due to the purpose of a NINo, there are some organisations that will need to know what your number is. These include:
If you were born in the UK, you will have received it when you turned 16. If you recently moved to the UK and don’t have a National Insurance Number already, you need to apply for one if you’re planning to work. You can do this online here.
If you can’t remember your National Insurance Number, the quickest and easiest way to find it is either online through your personal tax account, or on a document, such as your payslip or P60.
If you still can’t find it after this, you can fill in form CA5403 and send it to the corresponding address. Or, alternatively, you can contact the National Insurance numbers helpline and answer some security questions. HMRC will then post it to you.
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