The National Insurance Number

What is a National Insurance Number?

How to apply?

Documents needed



What is a National Insurance Number?

The National Insurance Number (NI) is a number used to:
- apply for benefits
- record contributions

The National Insurance Number is personal and can be used by one person only.

Who needs to apply?

You need to apply if:
- you are looking for work
- you have recently started work
- you are starting work in a short time
- you are self-employed
- you want to apply for benefits
- your partner is applying for benefits for you
- you want to pay voluntary NI contributions and would benefit from paying them


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How to apply

- You will have to do an interview to check your identity and right to work in the UK
- You will have to prove your identity and explain why you want a National Insurance Number
- You will probably have to complete an application form
- You will be told what documents you need to bring with you at the interview
- You can ask for an interpreter to be with you at the interview
- It is possible that your documents will be kept for a short time

Where to apply

You can go to:
- a Jobcentre Plus office
- a Jobcentre
- the social security office

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What documents you need at the interview


Depending on why you want an NI number, you will have to bring different documents. Here you have some examples. Remember you cannot bring photocopies.

General documents:
- passport
- National Identity card
- birth certificate
- marriage or civil partnership certificate
- driving licence
- Home Office documents
- 2 or more passports if you have different nationalities
- student-loan documents
- student identity card
- letter from your college, including course details
- mortgage or rental contract
- residence or naturalisation documents
- adoption certificate

Employment documents:
- record of payments
- work permit
- your contract
- details of employment agencies you are registered with
- evidence that you are looking for work
If you own your own business/company:
- certificate of incorporation
- memorandum of association
- articles of association
- services contract

If you are self-employed:
- invoices
- letters from your accountant
- letters from your clients
- your Schedule D tax form
- stock transfer form

If you have recently arrived in the UK from a non-European country, you must bring any travel documents you have - like your passport, National Identity card or NASS 35 form.

If you have any document that can help prove your identity or your right to work, bring them with you.

If you do not have documents you must go to the interview in any case.


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This project has been carried out with the support of the European Union.
The content of this project does not necessarily reflect the position of the
European Community or the NAG, nor does it involve
any responsibility on their part.