What Documents Do You Need to Apply for British Citizenship?

Applying for British citizenship through naturalisation (Form AN) requires careful document preparation. Missing or incorrect documents is one of the most common reasons applications are delayed. Here's a comprehensive guide to what you'll need.

Identity Documents

• Current valid passport (or travel document if you don't have a passport)
• All previous passports held during the qualifying period if possible, as these may contain entry/exit stamps

Immigration Status

• Proof of ILR or settled status — this could be your BRP card, a share code from your eVisa, or a previous passport with an ILR vignette
• Previous BRP cards if applicable

Residence Evidence

• Travel history for the full 3 or 5-year qualifying period showing you have not exceeded absence limits
• This can be demonstrated through passport stamps, a Subject Access Request from the Home Office, or airline records

Life in the UK Test

• Life in the UK test pass certificate — you must have passed the test before applying. The certificate must be in your name and is required for most applicants aged 18-64

English Language

• Evidence of English language ability, which can be:
  • A recognised English language test certificate (B1 level or above)
  • A degree taught in English
  • Being a national of a majority English-speaking country

Supporting Documents

• Two referees who are British citizens and have known you for at least 3 years — one must countersign your application form and photographs
• Biometric photographs meeting Home Office specifications

Fees

The current naturalisation fee is £1,630 for adults. This is non-refundable even if your application is refused, so ensuring your application is complete and correct before submitting is essential.

Key Takeaways

• Gather all passports, BRP cards, and immigration documents covering your full qualifying period
• Book and pass the Life in the UK test before applying — you cannot submit without it
• Arrange two suitable referees in advance
• Double-check absence limits before submitting — exceeding them is a common reason for refusal

BritPass helps you prepare for the Life in the UK test with full practice mock exams and detailed question breakdowns. Start practising today.