Guidance

Form AN: guidance

How to apply for citizenship by naturalisation if you are living in the UK.

• From: UK Visas and Immigration
• Published: 22 March 2019
• Last updated: 27 March 2025 — See all updates

Documents

Form AN: guidance (accessible)

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Form AN: guidance

PDF, 477 KB, 46 pages

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Details

Read the AN guidance to find out if you can apply for British citizenship by naturalisation.

Published 22 March 2019

Last updated 27 March 2025 + show all updates

1. 27 March 2025

   Amended to reflect that a biometric residence permit can be used for 18 months from the date of expiry.

2. 24 July 2024

   Updated Form AN: guidance to update the section on 'Citizenship ban' to reflect changes as a result of the Illegal Migration Act 2023.

3. 4 October 2023

   Updated guidance published with updated formatting and links throughout.

4. 1 August 2023

   Accessible version added.

5. 21 July 2023

   Clarified the requirements for lawful residence and for demonstrating freedom from immigration time restrictions.

6. 21 July 2023

   Updated the guidance to reflect revisions to the good character policy, Royal Assent of the Illegal Migration Act on 20 July and clarification of the English language requirement.

7. 4 November 2022

   Accessible version added.

8. 2 November 2022

   Updated to reflect guidance on the Life in the UK test.

9. 29 September 2022

   Updated the guidance.

10. 5 July 2022

    Fixed broken links.

11. 28 June 2022

    Guidance updated to reflect Nationality and Borders Act changes coming into effect on 28 June 2022.

12. 1 February 2022

    Added accessible version of form.

13. 1 July 2021

    Updated guidance.

14. 6 April 2021

    Updated guidance: all references to UK NARIC, which is an EU initiative, changed to ‘Ecctis (formerly UK NARIC)’ as a result of the UK leaving the EU.

15. 31 December 2020

    Removed outdated form.

16. 18 December 2020

    Uploaded guidance for December 2020.

17. 17 June 2020

    Updated guidance.

18. 22 March 2019

    First published.