Form CA5403 Your National Insurance Number - United Kingdom

What Is Form CA5403?

Form CA5403, Your National Insurance Number , is an official statement completed by residents of the United Kingdom who wish to geta confirmation of their National Insurance Number or to inform the government about a change to their personal information. It is allowed to request this information for personal use or obtain confirmation if a third party asks you to verify the number.

This form was issued by United Kingdom HM Revenue & Customs and was last revised on February 1, 2013 . A printable CA5403 Form can be downloaded through the link below for reference. The request for the National Insurance number can only be filed online on the official website of the government of the United Kingdom.

Enter the following details on Form CA5403:

1. Your personal information (your current and previous names, gender, date of birth, and contact details). If you are completing this document to inform the government about the change to your name, check the appropriate box.
2. All previous addresses and length of residence.
3. Details of your marriage or civil partnership. Record the date of divorce or dissolution of the partnership if you have ended your relationship.