British Citizenship Requirements: Who Is Eligible

This page covers the requirements to become a British citizen, which is a wider set of rules than just passing one test. The most common route is naturalisation, for adults who already hold settlement. If you are ready to act once you have checked you qualify, our guide on how to apply for British citizenship walks through the process. These rules are current as at July 2026, and you should confirm the detail for your situation on GOV.UK.

The two-step path: settlement, then naturalisation

Unlike a single application, British citizenship normally sits at the end of an immigration journey. You first reach settlement, then you apply for citizenship. Getting the order and the timing right matters, because most refusals come down to residence and timing rather than the test.

1. The residence requirement

This is the rule that trips most people up, so check your dates carefully before you do anything else. There are two common routes:

• Standard route: you have lived lawfully in the UK for around 5 years, and you have held indefinite leave to remain (or settled status) for at least the last 12 months before you apply.
• Spouse or civil partner of a British citizen: the residence period is usually around 3 years, and you generally need to already hold settlement, without the extra 12-month wait that applies on the standard route.

There are also limits on how much time you can spend outside the UK during the qualifying period, with a separate, tighter limit on absences in the final 12 months before you apply. The exact day allowances can change and some can be exercised with discretion, so check the current figures on GOV.UK rather than relying on a number you read elsewhere. Add up every day spent abroad across the whole period, not just your longest single trip.

2. Good character

If you are 18 or over you must be of good character. The Home Office reviews your immigration history, any criminal record, your financial affairs (including tax and any bankruptcy), and whether you have been honest in your dealings with the Home Office.

A criminal record does not automatically rule you out, but recent or serious matters can lead to refusal, and breaches of immigration law are taken seriously. Be upfront: undisclosed history causes far more refusals than the history itself.

3. The English language requirement (B1)

This is a separate requirement from the Life in the UK test, and passing the test does not satisfy it. You must show English at CEFR level B1 or above in speaking and listening. You can usually meet it in one of these ways:

• an approved B1 (or higher) speaking and listening qualification from an approved provider
• a degree that was taught or researched in English (with the right confirmation)
• being a national of a country GOV.UK treats as majority English speaking

Together, the B1 English requirement and the Life in the UK test make up the knowledge of language and life in the UK requirement. Check GOV.UK for the list of approved qualifications and how to prove you meet this.

4. The Life in the UK test

Alongside the English requirement, you must pass the Life in the UK test: 24 multiple-choice questions in 45 minutes, with a pass mark of 75% (at least 18 of 24 correct). There is no per-section rule: you simply need 18 correct answers overall. The same pass is used for both settlement (ILR) and naturalisation, and it does not expire, so you do not sit it twice.

Who is exempt from the test

You are exempt from the knowledge of language and life requirement (both the B1 English and the Life in the UK test) if you are:

• under 18
• 65 or over
• unable to meet it because of a long-term physical or mental condition (with evidence)

Being exempt does not mean skipping the application itself. Check GOV.UK for how each exemption is evidenced.

5. Intention to live in the UK

On the standard 5-year route you must intend to make the UK your main home. The Home Office considers where you live, your work, and your ties to the UK. Some applicants, such as spouses and civil partners of British citizens, are not required to meet this in the same way, so check GOV.UK for how it applies to you.

Special situations, kept brief

A few groups have questions worth answering directly, though the core requirements above still apply:

• Spouses and civil partners of British citizens use the shorter, roughly 3-year residence route, generally apply once they hold settlement, and have different rules on the intention requirement.
• EU Settlement Scheme settled status counts as settlement for these purposes, so the same naturalisation requirements apply.
• Children under 18 usually become British by registration rather than naturalisation, which has its own rules and a different fee. Check GOV.UK for the child routes.
• If you already hold ILR or settled status, you may be partway there. You still meet good character, the English requirement, the Life in the UK test, and (on the standard route) the 12-month holding period and intention.

Once you meet the requirements

Checking eligibility is step one. From there you gather documents, apply for naturalisation on GOV.UK, give your biometrics, and attend a citizenship ceremony once you are approved. Naturalisation has a Home Office fee of 1,709 pounds plus a 130 pounds citizenship ceremony fee (1,839 pounds in total) as of the 8 April 2026 fee uprating, so always check GOV.UK for the current fee. Two pages take it from here:

• how to apply for British citizenship walks through the process step by step
• the Life in the UK test cost breaks down the 50 pound test fee and the wider cost of becoming British