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Key takeaways
- 1ILR can lapse after two continuous years outside the UK; British citizenship is not lost by living abroad.
- 2If you are married to a British citizen you can apply to naturalise as soon as you have ILR; otherwise you usually wait 12 months.
- 3Settlement rules are under review, so secure the status you are eligible for while the current rules apply.
Many clients ask whether they should apply for British Citizenship after getting Indefinite Leave to Remain (ILR), or whether permanent residence is enough. Both let you live and work in the UK indefinitely, but there are important differences.
What is Indefinite Leave to Remain (ILR)?
Indefinite Leave to Remain is permanent residence for people who are not British citizens. With ILR:
- You can live, work and study in the UK without time limits.
- You can generally access the NHS and public funds.
- You remain a citizen of your home country and travel on your existing passport.
Key limitation: ILR usually lapses if you spend more than two continuous years outside the UK (five years for settled status under the EU Settlement Scheme). It can also be revoked, for example after serious criminal offending.
What is British Citizenship?
When you naturalise as a British citizen:
- You can hold a British passport and receive British consular help abroad.
- You can vote in all UK elections and stand for public office.
- Your status is permanent: you can live outside the UK for any length of time without losing it.
- Children born to you after you naturalise are usually British by birth.
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Key Differences at a Glance
- Passports: ILR holders keep using a foreign passport; British citizens can hold a British passport.
- Absences: ILR can be lost after long absences abroad; British citizenship is not lost by living overseas.
- Voting: full voting rights apply only to British, qualifying Commonwealth and Irish citizens.
- Dual nationality: the UK allows dual citizenship, but check whether your country of origin does.
When Can You Apply for Citizenship?
- If you are married to a British citizen: you can apply to naturalise as soon as you have ILR, provided you meet the residence, absence and good character requirements.
- If you are not married to a British citizen: you usually need to have held ILR for at least 12 months.
Changes on the Horizon
The government has consulted on an "earned settlement" model that would lengthen the standard qualifying period for ILR on many routes, with knock-on effects for citizenship timelines. As at October 2026 the final rules have not been confirmed. If you are close to qualifying under the current rules, take advice now.
How Temple Gate Solicitors Can Help
We review your immigration history, absences and documents to prepare a careful application for ILR or British citizenship. Contact us for a free 10-minute consultation.
This guide is general information about the law of England and Wales as at 15 October 2026. It is not legal advice, and immigration rules in particular change often. For advice on your own situation, speak to a solicitor.