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★ KEY TAKEAWAY
UK naturalisation as a British citizen costs £1,605 plus an £80 ceremony fee in 2026. Section 6(1) requires 5 years lawful residence plus 1 full year holding ILR; Section 6(2) for spouses requires 3 years residence with ILR at the time of application. B1 English, the Life in the UK test, and good character apply throughout. |
Naturalisation as a British citizen is the legal route by which a settled foreign national becomes a British national under section 6 of the British Nationality Act 1981, with the application processed by United Kingdom Visas and Immigration (UKVI) at a fee of £1,605 from 9 April 2025, plus a separate £80 citizenship ceremony fee paid to the local council on grant. Two principal pathways apply. Under section 6(1), the standard adult route, the applicant must have been lawfully resident in the UK for 5 years and must have held Indefinite Leave to Remain (ILR) for at least 12 months before applying. Under section 6(2), the spouse or civil partner of a British citizen route, the residence requirement is 3 years and the applicant must hold ILR at the time of application without the additional 12-month wait. The application is made online via gov.uk/apply-citizenship-indefinite-leave-to-remain and requires the applicant to demonstrate B1 CEFR English (or equivalent qualification), to pass the Life in the UK test, to satisfy the good character requirement, and to keep within the 450 days absent over 5 years and 90 days absent in the final 12-month period. British nationality permits dual citizenship, so applicants do not have to renounce their original nationality unless their home country requires it.
Who qualifies under section 6(1)?
Section 6(1) of the British Nationality Act 1981 sets the standard adult route, requiring 5 years of continuous lawful residence in the UK and a further 12 months holding Indefinite Leave to Remain or settled status before applying, per gov.uk/apply-citizenship-indefinite-leave-to-remain. Lawful residence covers time on most work, study, family, and EU Settlement Scheme routes, but does not include time spent on visitor visas or while overstaying.
Total absences from the UK across the 5-year period must not exceed 450 days, and absences in the final 12 months must not exceed 90 days, per the Nationality Policy Guidance on gov.uk. The Home Office can exercise discretion to overlook small breaches, but applicants close to the limits should plan carefully and document any absences linked to work, family emergencies, or research.
How does the spouse route under section 6(2) differ?
Section 6(2) is the route for spouses or civil partners of British citizens, requiring 3 years of residence in the UK and ILR or settled status at the time of application without the additional 12-month wait that applies to standard applicants, per gov.uk. Total absences over the 3-year period must not exceed 270 days, and the final 12 months retain the 90-day cap.
The relationship must be subsisting at the date of application; separation or divorce can disqualify the applicant from the section 6(2) route, in which case they revert to the section 6(1) standard pathway with its longer wait. Death of the British spouse during the qualifying period does not automatically disqualify; applicants in this situation should consult the Nationality Policy Guidance and consider regulated immigration advice.
What does the good character test cover?
The good character requirement is set out in Schedule 1 of the British Nationality Act 1981 and the Home Office Good Character Nationality Policy Guidance on gov.uk, applying to all applicants aged 10 or over. Caseworkers consider criminal record (UK and overseas), tax compliance, NHS debt over £500, immigration history including any breaches of conditions, and financial soundness including bankruptcy.
Sentence-based bars apply: a custodial sentence of 4 years or more triggers an automatic refusal, sentences between 12 months and 4 years carry a 15-year bar, and sentences below 12 months a 3-year bar. Spent convictions remain disclosable for nationality purposes, departing from the standard Rehabilitation of Offenders Act position. Caseworkers also assess unspent civil judgments, deception in applications, and association with serious criminality.
What English language and Life in the UK requirements apply?
Applicants must demonstrate English at B1 CEFR level or equivalent, satisfied by a Secure English Language Test (SELT) from an approved provider, a degree taught in English (with UK NARIC verification for overseas degrees), or evidence that the applicant is a national of a majority English-speaking country, per gov.uk/english-language. Approved SELT providers in 2026 include IELTS UKVI, Trinity College London, LanguageCert International ESOL, and Pearson PTE Academic UKVI.
The Life in the UK test consists of 24 multiple-choice questions, requires 18 correct answers (75 per cent) to pass, costs £50 per sitting, and is booked online at gov.uk/life-in-the-uk-test, per the Home Office. Both the SELT certificate and Life in the UK pass certificate are valid indefinitely, so applicants who completed them at the ILR stage do not need to retake for citizenship.
How do the section 6(1) and 6(2) routes compare?
The fee, English, Life in the UK, and good character requirements are identical across both routes. The differentiator is the residence and ILR-holding rule, which favours spouses of British citizens by 2 years on the residence count and removes the 12-month ILR wait, recognising the established family link.
What does the citizenship ceremony involve?
Following grant of naturalisation, the applicant receives an invitation to attend a citizenship ceremony at their local council within 90 days of the grant letter, per gov.uk/citizenship-ceremonies. The ceremony fee is £80 paid to the council and includes the Oath of Allegiance and Pledge of loyalty to the UK, after which the certificate of naturalisation is presented and British citizenship takes effect.
Failure to attend within 90 days without good reason can void the grant, requiring a fresh application and fee. Some councils offer private ceremonies at additional cost (typically £100 to £200) for applicants who prefer not to attend a group session. After the ceremony, the new British citizen can apply for a UK passport via HM Passport Office, currently £88.50 online for adults.
What naturalisation data does the Home Office publish?
The Home Office publishes Citizenship Statistics quarterly on gov.uk/government/collections/immigration-statistics-quarterly-release, with detailed tables showing applications received, grants, refusals, and the previous nationality of new British citizens. Annual grants typically run between 150,000 and 200,000, with the largest cohorts of new citizens originating from India, Pakistan, Nigeria, and Romania in the most recent published quarters.
Refusal rates are published as part of the same statistical release, with good character grounds and residence requirement breaches being the two largest refusal categories. Applicants seeking the live picture should consult the most recent quarterly release for current grant volumes, refusal patterns, and typical processing times by application centre.
| ★ EDITOR'S VERDICT UK naturalisation is a settled administrative process at £1,605 plus £80 ceremony, with the section 6(1) standard route requiring 5 years residence plus 12 months ILR and the section 6(2) spouse route compressing this to 3 years with ILR at apply date. The B1 English and Life in the UK requirements are usually already satisfied at the ILR stage and do not require retesting. Good character remains the single most common refusal ground, so applicants with any criminal history, tax irregularity, or NHS debt should review the policy guidance and consider regulated advice before applying. |
| This article is for informational purposes only and does not constitute financial, legal, or immigration advice. Always verify with official sources before making decisions. |
Frequently asked questions
How long does naturalisation take?
Up to 6 months is the UKVI service standard. Many applications complete within 3 to 4 months, with complex cases involving overseas police checks or good character review taking longer.
Can I keep my original nationality?
Yes. UK law permits dual nationality. Whether you can keep your other citizenship depends on the laws of your home country; some require renunciation when acquiring another nationality.
Do I need to retake the Life in the UK test?
No. The Life in the UK test certificate is valid indefinitely. If you passed it for ILR, the same certificate is accepted at the citizenship application stage.
What if I exceed the absence limits?
Caseworkers can exercise discretion for modest breaches with good reasons (work, family emergency). Applicants well over the limits should wait until they fall back within range or take regulated advice.
Are children naturalised separately?
Children apply for registration as British citizens rather than naturalisation. The fee is £1,214 from 9 April 2025, plus the £80 ceremony fee for children aged 10 or over.
Does NHS debt affect my application?
NHS debts of £500 or more reported by NHS Trusts to UKVI count against good character. Settle the debt and obtain confirmation from the Trust before applying to avoid refusal.
Can I apply on the day I get ILR?
Only spouses of British citizens under section 6(2). Standard applicants under section 6(1) must wait 12 months from the ILR grant date before submitting.
Sources
- Home Office, Apply for citizenship if you have ILR, gov.uk/apply-citizenship-indefinite-leave-to-remain — accessed April 2026.
- British Nationality Act 1981, sections 6(1), 6(2), and Schedule 1, legislation.gov.uk — statutory basis.
- UKVI, Visa fees revised table, gov.uk/government/publications/visa-regulations-revised-table — effective 9 April 2025.
- Home Office, Good character nationality policy guidance, gov.uk — accessed April 2026.
- Home Office, Life in the UK test, gov.uk/life-in-the-uk-test — accessed April 2026.
- Home Office, Citizenship ceremonies, gov.uk/citizenship-ceremonies — accessed April 2026.
- Home Office, Citizenship Statistics, gov.uk/government/collections/immigration-statistics-quarterly-release — accessed April 2026.
Related reading on kaeltripton.com: UK ILR requirements 2026, UK spouse visa income 2026, UK immigration visa application 2026.
