British citizenship services

We offer two services relating to British citizenship:

1. Request a search for a certificate of British citizenship

Use this service if you want us to search for the following:

  • registration certificates issued in the UK between 1 January 1949 and 30 September 1986
  • naturalisation certificates issued in the UK between 1 January 1981 and 30 September 1986

Request certificate search

2. Request confirmation of no evidence of British naturalisation

Use this service if:

  • you want us to confirm that we can find no evidence that you or someone else acquired British citizenship through naturalisation. We can confirm this up to October 1986 – for confirmation from October 1986 onwards apply through UK Visas and Immigration
  • you want a headed letter from us confirming this, for legal reasons

Confirm non-naturalisation