To apply for British citizenship in 2026 you usually need to have lived in the UK for 5 years, held ILR or settled status for 12 months (unless you're married to a British citizen), spent no more than 450 days outside the UK in those 5 years, passed the Life in the UK Test, met the English requirement and be of good character (GOV.UK, checked 14 October 2026).

Those are the core UK citizenship requirements for naturalisation. This checklist explains each one, what the Home Office looks for and what proof you need. It is general guidance only. Eligibility is individual, so check your own route before you apply.

British citizenship requirements at a glance

RequirementWhat it meansProof
AgeYou must be 18 or overPassport or identity document
ResidenceLived in the UK for at least 5 years (3 years if married to a British citizen)Your travel history and residence evidence
Physical presenceIn the UK exactly 5 years (or 3 years) before the Home Office receives your applicationTravel records
AbsencesNo more than 450 days outside the UK in 5 years and 90 days in the last 12 months (270 days in 3 years for spouses)Travel history, Home Office records
Immigration statusILR, settled status or indefinite leave to enter, usually held for 12 monthseVisa or status record
EnglishEnglish, Welsh or Scottish Gaelic, unless exemptAccepted qualification or degree
Life in the UK TestPassed, unless exemptTest pass reference
Good characterAssessed against Home Office guidanceFull and honest disclosure
IntentionYou intend to continue living in the UKYour application

Source: GOV.UK, Apply for citizenship if you have indefinite leave to remain or settled status and Apply for citizenship if your spouse is a British citizen, both checked 14 October 2026.

Residence requirements

You must have lived in the UK for at least 5 years before the date of your application. You should not have broken any UK immigration laws during that time. If you have indefinite leave to enter or remain, GOV.UK says the Home Office will not usually check whether you broke immigration laws before then.

The "exactly 5 years" rule

You must have been physically in the UK exactly 5 years before the day the Home Office receives your application. If you were abroad on that date, your application may be rejected, depending on why you were away. GOV.UK says the Home Office will consider special circumstances, for example health reasons or travel restrictions that stopped you living in the UK at the start of the period. If you apply online, the application is received on the same day.

Absences: the 450 and 90 day limits

You should not have spent more than 450 days outside the UK during the 5 years before your application, or more than 90 days outside the UK in the last 12 months. When you apply you give details of your trips using your own records, such as emails or boarding passes, and the Home Office checks them against its records.

If you are over either limit, get advice before you apply. Do not assume an application will be refused or accepted.

Time spent in the UK while exempt from immigration control, for example as a diplomat or a member of visiting armed forces, does not count towards residence.

Immigration status

You can usually apply for citizenship once you have held indefinite leave to remain, settled status under the EU Settlement Scheme or indefinite leave to enter for 12 months. To work out the exact date you become eligible, see when you can apply after ILR. If you do not have ILR yet, our guide to ILR requirements explains how to get there first.

If you're married to a British citizen

If you are married to, or in a civil partnership with, a British citizen, you can apply as soon as you have ILR, settled status or indefinite leave to enter. You need to have lived in the UK for at least 3 years, been in the UK exactly 3 years before the Home Office receives your application, and spent no more than 270 days outside the UK in those 3 years and 90 days in the last 12 months. The English, Life in the UK Test and good character requirements still apply. Our British citizenship by marriage service covers this route in detail.

EU citizens with pre-settled status

You may be able to apply with pre-settled status if you are from the EU, Norway, Iceland or Liechtenstein, started living in the UK by 31 December 2020 (or are their family member), and have lived in the UK for 5 years in a row while working (or looking for work for up to 3 months), studying or being self-sufficient. GOV.UK sets this out on the citizenship with settled status page.

English language requirement

You must prove your knowledge of English, Welsh or Scottish Gaelic. For English, GOV.UK accepts an English qualification at B1, B2, C1 or C2 level, or a degree taught or researched in English (GOV.UK, prove your knowledge of English). GOV.UK warns that an application will be refused if you send the wrong qualification.

You do not need to prove your English if you are 65 or over, if a long-term physical or mental condition prevents you (with a completed exemption form from a doctor), or if you are a national of a country on the GOV.UK exempt list, such as Australia, Canada, New Zealand or the USA. If you were exempt when you got settlement, you need to submit an exemption form again for citizenship.

Life in the UK Test

You must have passed the Life in the UK Test. It costs £50 and you book it online at least 3 days in advance (GOV.UK). If you passed it for your settlement application, you do not take it again. Our guide on how to pass the Life in the UK Test has preparation tips.

Good character requirement

You must be of good character. The Home Office assesses this using its good character caseworker guidance (updated 30 April 2026). The guidance looks at areas including:

  • criminal convictions, pending charges and other criminal activity
  • financial soundness, such as bankruptcy, debt, fraud involving public funds and unpaid council tax
  • deception and dishonesty, including failing to disclose information on a nationality application
  • immigration breaches, such as overstaying and illegal entry
  • national security, extremism and international crimes

The guidance says applications made after 10 February 2025 that include illegal entry will normally be refused, whenever the illegal entry happened. Be open about anything in your history. Failing to disclose something can itself count against you.

Intention to live in the UK

You must intend to continue living in the UK if your application is granted. This applies to the ILR route described on GOV.UK.

What it costs

The fee for adult naturalisation is £1,839, made up of £1,709 for the application and £130 for the citizenship ceremony (Home Office fees table, 8 October 2026, checked on GOV.UK on 14 October 2026).

Frequently asked questions

What are the requirements for British citizenship?

You usually need to be 18 or over, have lived in the UK for 5 years, have held ILR or settled status for 12 months (unless married to a British citizen), have spent no more than 450 days outside the UK in 5 years and 90 days in the last 12 months, meet the English requirement, have passed the Life in the UK Test, be of good character and intend to keep living in the UK.

Can I apply if I've spent more than 450 days outside the UK?

GOV.UK says you should not have spent more than 450 days outside the UK in the 5 years before you apply. If you are over the limit, take advice on your circumstances before applying, because a wrong decision can cost you the fee.

Do I need the Life in the UK Test if I'm married to a British citizen?

Yes. GOV.UK lists passing the Life in the UK Test as a requirement for spouses and civil partners of British citizens, unless an exemption applies, for example being 65 or over.

What counts as good character?

The Home Office looks at criminality, financial soundness, deception and dishonesty, immigration breaches and national security, using its good character caseworker guidance (updated 30 April 2026). Disclose everything the form asks for.

Can EU citizens with pre-settled status apply?

Some can. You must be from the EU, Norway, Iceland or Liechtenstein, have started living in the UK by 31 December 2020 (or be their family member) and have lived in the UK for 5 years in a row while working, studying or self-sufficient.

How Worldwide Immigration can help

Check your eligibility with our IAA-regulated immigration advisers. We review your residence, absences, English evidence and character disclosures before you apply. Find out about our British citizenship application support. Book a consultation online https://worldwideimmigration.eu.cliogrow.com/book, call 0203 488 2308, WhatsApp 07360 271841 or email info@worldwideimmigration.co.uk.

Worldwide Immigration advisers are regulated by the Immigration Advice Authority (IAA), reference F201900032. This article is general guidance, not advice on your case. Eligibility is individual, and rules and fees can change.

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