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Apply for British citizenship if you have indefinite leave to remain (ILR) - form AN, who's eligible, fees and how to apply.

• Eligibility and fees

  You can apply for citizenship if you’ve lived in the UK for 5 years and…

• How to apply

  There are 2 ways to apply for British citizenship by naturalisation. You…

• Apply for your children

  You must apply separately for your children. You can apply to ‘register’…

• After you’ve applied

  You’ll usually get a decision within 6 months - some applications can take…

• After you get your certificate

  You must send your biometric residence permit (BRP) back to the Home…

There are different ways to apply for British citizenship, including ‘naturalisation’. Check your eligibility to apply.

A collection of guidance documents used by UK Visas and Immigration when deciding applications for British nationality.

• Updated: 23 November 2022

How you can show you know English when you apply for citizenship and to settle in the UK, and when you do not have to.

Get a fee waiver if you’re under 18 and cannot afford your citizenship application fee. You can apply if you’re eligible for British citizenship.

Apply for British citizenship if you have a British parent - who's eligible, fees and how to apply

Apply for British citizenship if you were born in the UK - who's eligible, fees and how to apply

Apply for indefinite leave to remain ('settlement') if you have permission to stay as a refugee, humanitarian protection or discretionary leave - fees, who's eligible, family members, how to apply.

Apply for citizenship by naturalisation if you live in the Channel Islands, Isle of Man, a British Overseas Territory or if you live elsewhere and want to apply by post.

Where to get official UK documents when you’re abroad. Sometimes called notarial and document services.

• Updated: 31 July 2025