Form

Application to register as a British citizen: form B(OS)

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

This file may not be suitable for users of assistive technology. Request an accessible format.

If you use assistive technology (eg 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.

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 (eg 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.

Detail

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.

Published:
Updated:

+ full page history

Updated guidance.
Revised guide with biometric details and where to send applications
Updated guidance and form
First published.
From:
UK Visas and Immigration
Part of:
UK visa, immigration and citizenship application forms
Immigration and borders