Form

Apply to become a British citizen by naturalisation (form AN)

Use form AN to apply for citizenship by naturalisation if you are living in the UK.

Documents

Application for naturalisation as a British citizen (form AN)

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If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email alternativeformats@homeoffice.gsi.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Naturalisation as a British citizen - a guide for applicants (guide AN)

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Naturalisation booklet - the requirements (booklet AN)

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Details

You can now apply online.

If you are eligible you can apply for British citizenship by naturalisation.

You should read both:

  • guide AN which helps you fill in the form
  • booklet AN which summarises the legal requirements for applying
Published 1 October 2013
Last updated 13 June 2017 + show all updates
  1. Updated AN booklet.
  2. Updated AN form.
  3. Updated AN guide and booklet.
  4. Updated 'Booklet AN'.
  5. We would like to remind applicants that the current version of the AN form is January 2016.
  6. Updated AN Form.
  7. Updated AN booklet and guide.
  8. Updated form.
  9. Updated guidance, December 2015.
  10. Updated booklet, November 2015.
  11. Updated AN form.
  12. Updated AN guide and AN booklet.
  13. Updated guidance
  14. Updated guidance
  15. Updated AN booklet.
  16. Updated documents.
  17. Updated document.
  18. Updated documents
  19. Updated AN booklet
  20. Updated booklet on naturalisation
  21. A new version of this form and guidance have been published for use on or after 2 June 2014. You can now tell us your email address to receive an update on the progress of your application.
  22. Additional information on the Citizenship (Armed Forces) Act.
  23. First published.