National Insurance Number Change of Details

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Do not fill in this form if you’ve never had a National Insurance number before. Instead you should apply for a new number.

Use this form to:

  • report a change of details
  • get a replacement for a lost number
  • get a written confirmation of your number

You must answer all the questions except those marked 'optional'.

What happens next?

An application pack will arrive in the post in the next few days which will include your completed application form and a document that you must sign and return to the HMRC in the prepaid envelope.

Need help?

Call us on +44 (0) 1254 951 083 to speak to a friendly member of our team.

Part 1. Your details

What would you like to do?

Do you have a previous last name?

Do you have a previous first name?

Are you male or female?

Example: dd-mm-yyyy

Part 2. Your details (continued)

Is your current address in the UK?

Current address

Are you returning to the UK from living abroad?

Do you know your National Insurance number?

Example: AB123456C

Part 3. Your previous address

Have you had any previous addresses?

Is this address in the UK?

Previous address

When did you live at this address?

Example: dd-mm-yyyy
Example: dd-mm-yyyy

Part 4. Marriage or civil partnership details

Are you married?

Example: dd-mm-yyyy

Are you in a civil partnership?

Example: dd-mm-yyyy

Have you ever been married or in a civil partnership in the past?

Example: dd-mm-yyyy
Example: dd-mm-yyyy

Part 5. Your UK Benefit Details

Have you ever claimed child benefit?

A Child Benefit Number starts with 'CHB' and is made up of 8 numbers and 2 letters, e.g. CHB12345678AB.

Have you ever claimed any other UK benefits?

Part 6. Your employment details

Have you ever worked in the UK?

Address of your most recent UK employer

Example: dd-mm-yyyy

Are you still employed by this employer?

Example: dd-mm-yyyy

We are not affiliated, associated, authorized, endorsed by, or in any way officially connected with HMRC, Jobcentre Plus or any other government body.

You can apply for a National Insurance number for free by contacting Jobcentre Plus directly, however, you will not receive any of the benefits provided by our services.

Feel free to contact us if you have any questions.

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