Original document : https://www.gov.uk/government/publications/form-bos-guidance

Change description : 2025-04-22 10:26:00: Updated information about biometric enrolment, citizenship ceremonies and citizenship-related queries and added a new section about digital status. [Guidance and regulation]

Showing diff : 2024-07-24 00:00:17.517043586 +00:00..2025-04-22 09:26:36.518407314 +00:00

Guidance

Form B(OS): guidance

Guidance to register as a British citizen if you have certain other types of British nationality.

From:
UK Visas and Immigration
Published
22 March 2019
Last updated
2422 JulyApril 20242025 — See all updates

Documents

Form B(OS): guidance (accessible version)(accessible)

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Form B(OS): guidance

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Details

Read the B(OS) guidance to find out if you can register as a British citizen if you are a British Overseas citizen, British subject, British protected person, or British National (Overseas) and have no other citizenship or nationality.

Updates to this page

Published 22 March 2019
Last updated 2422 JulyApril 2024 + show2025 href="#full-history">+ show all updates

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Update history

2025-04-22 10:26
Updated information about biometric enrolment, citizenship ceremonies and citizenship-related queries and added a new section about digital status.

2024-07-24 01:00
Added a section on application processing times, and added more details to the section on travelling to and from the UK after registering.

2023-10-04 00:01
Document format and style updated. Outdated information removed or updated accordingly. References and links to fees updated.

2022-02-22 09:22
Accessible HTML version added.