GOV.UK
Form
Application to register as a British citizen: form B(OS)
- From:
- UK Visas and Immigration
- Part of:
- UK visa, immigration and citizenship application forms and Immigration and borders
- Published:
- 1 June 2010
- Last updated:
- 4 December 2015, see all updates
Form to apply to register as a British citizen if you have certain other types of British nationality.
Documents
Application for registration as a British citizen by a British overseas citizen: form B(OS)
PDF, 126KB, 10 pages
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Guidance on registering as a British citizen by a British Overseas citizen, British subject, British protected person, British National (Overseas) who has no other citizenship or nationality using form B(OS)
PDF, 338KB, 16 pages
This file may not be suitable for users of assistive technology. Request an accessible format.
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.
Details
Use this form if you are a British Overseas citizen, British subject, British protected person, or British National (Overseas) and have no other citizenship or nationality. You should also read the guidance notes.
Document information
Published: 1 June 2010
Updated: 4 December 2015
- Updated guidance.
- Revised guide with biometric details and where to send applications
- Updated guidance and form
- First published.