Overview
Naturalisation is the legal process by which a settled non-British national becomes a British citizen. Under the British Nationality Act 1981, the two most common adult routes are section 6(2), for applicants married to or in a civil partnership with a British citizen, and section 6(1), for all other adults who hold Indefinite Leave to Remain or settled status.
Once granted, British citizenship is permanent. You can apply for a UK passport, vote in UK general elections, leave and re-enter the UK without restriction, and pass citizenship to children born outside the UK. There is no renewal, no further immigration application, and no time limit.
Updated for 2026: The Form AN fee rose by 6-7% on 8 April 2026, bringing the total Home Office cost (application plus ceremony) to approximately £1,839 per applicant. The English language standard for naturalisation rises from B1 to B2 from 26 March 2027, in line with the wider settlement-route changes. If you hold a B1 certificate used for ILR before that date, it will be accepted for a naturalisation application made before the cut-off.
The application is made on Form AN and submitted online. Decisions take around six months. If approved, you attend a citizenship ceremony at your local register office. In Glasgow, ceremonies are held at the City Chambers on George Square. You become a British citizen at the moment of taking the oath, not at the date of the Home Office decision. Our Glasgow office handles applications for clients across Glasgow, Paisley, and the wider west of Scotland.
Key Benefits
Right route, right timing
We confirm whether you qualify under section 6(1) or 6(2), audit your full residence and absence record against the qualifying-period rules, and time the submission to avoid borderline positions that invite unnecessary scrutiny.
Good character audit before you pay
Good-character refusals are the most common reason naturalisation fails, and the £1,709 fee is non-refundable. We audit your criminal record, immigration history, tax compliance, and any civil judgments before we recommend you apply.
Absence reconciliation done properly
Form AN demands a day-by-day trip schedule across five years (or three for spouses). We work back through your passport stamps and travel records, apply any available discretion for borderline cases, and present the count in the format the Home Office expects.
Glasgow ceremony coordinated
Once your application is approved, you have 90 days to attend a citizenship ceremony. We help you book promptly with Glasgow Register Office so you receive your certificate at the City Chambers without delay.
Our Service Packages
Advice Package
A one-to-one consultation with a Glasgow immigration adviser. We confirm the correct naturalisation route, audit your residence, absences, and good-character position, and give you a written action plan to the submission date.
From £150 + VAT
Application Package
Full end-to-end Form AN preparation. We build every document category, draft the cover letter, complete the online form, and submit on your behalf. Includes absence reconciliation, referee coordination, and ceremony booking support.
From £700 + VAT
Document Check
Already prepared your own application? Our advisers review the completed Form AN and every document before you submit, with a written checklist of any gaps in residence, language, or good-character evidence.
From £300 + VAT
Refusal Review
If your naturalisation was refused, we review the refusal letter against the British Nationality Act and Home Office policy, advise on whether reconsideration or a fresh application is the stronger route, and rebuild the file. Where the grounds suggest only a legal challenge will succeed, we refer you to a specialist representative.
From £500 + VAT
What is British citizenship by naturalisation?
Naturalisation is the formal legal process through which a non-British national who has lived and settled in the UK becomes a British citizen. It is governed by the British Nationality Act 1981. Once granted, British citizenship is permanent: there is no renewal, no further immigration leave to maintain, and no expiry. You receive a British passport, the right to vote in UK general elections, and the right to leave and re-enter the UK without restriction for the rest of your life.
Naturalisation is available to adults who hold Indefinite Leave to Remain or settled status. It is the final step in the UK immigration journey for most people, and for the vast majority of applicants at our Glasgow office, it comes after the spouse or partner route, a work visa, or the skilled-worker route to ILR.
The two main naturalisation routes
The British Nationality Act creates two routes to naturalisation for adults. Both use Form AN, but the qualifying period and some of the conditions differ.
Section 6(1) is the standard route for ILR holders who are not married to a British citizen. You need five years of continuous lawful residence in the UK, of which at least the final 12 months must have been spent free of any time restriction on leave (that is, on ILR or settled status). You must also meet the absence, English language, Life in the UK Test, and good-character requirements.
Section 6(2) is the route for people who are married to or in a civil partnership with a British citizen. The qualifying period is three years, not five, and there is no separate 12-month post-ILR wait: you can apply as soon as ILR is granted provided you have three years of lawful UK residence and your partner is a British citizen at the date of application. The absence limit is tighter (270 days across three years rather than 450 days across five), but the shorter overall window makes this a significantly faster path to citizenship for eligible couples.
Naturalisation requirements in full
Five tests apply to both routes, with the figures differing where noted.
Residence requirement
You must have been lawfully resident in the UK throughout the qualifying period: five years immediately before the date of application under section 6(1), or three years under section 6(2). Lawful residence means you held valid leave for every day of that period, or were exempt from immigration control. Any period of overstay, unlawful entry, or leave obtained by deception disqualifies those days and may affect the whole application.
Absence limits
Section 6(1): no more than 450 days outside the UK across the five-year period, and no more than 90 days in the final 12 months. Section 6(2): no more than 270 days across the three-year period, and no more than 90 days in the final 12 months. The Home Office can exercise discretion for modest excess absences where there are compelling reasons, such as employment overseas for a UK-based employer or a family emergency, but discretion is not routine and is never guaranteed. We map your full travel record before you commit to a submission date.
Immigration status requirement
Section 6(1) applicants must hold ILR or settled status at the date of application, and must have held it for at least 12 months. Section 6(2) applicants must hold ILR or settled status at the date of application, but there is no separate 12-month wait. In both cases, you must not have been in breach of immigration rules at any point during the qualifying period.
English language requirement
Naturalisation requires English at CEFR B1 level in speaking and listening. From 26 March 2027 this will rise to B2, in line with the wider changes to the settlement route. Acceptable evidence includes a Secure English Language Test certificate at B1 or higher, a degree taught in English with Ecctis confirmation for non-UK qualifications, or nationality of a majority English-speaking country. If you used an English test certificate for your ILR application, the same certificate is accepted for naturalisation provided it was valid at the ILR application date and remains acceptable under current policy. You do not need to retake the test.
Life in the UK Test
You must have passed the Life in the UK Test. The pass certificate does not expire once issued, so the same certificate accepted for ILR is accepted for naturalisation. Applicants aged 65 or over, and those with a qualifying disability, are exempt from the test.
Good character requirement
The Home Office must be satisfied that you are a person of good character. There is no statutory definition; it is assessed through detailed policy guidance against several categories: criminal record in the UK and overseas, compliance with UK immigration rules throughout your residence, tax compliance with HMRC, county court and civil judgments, and insolvency or company-director history. Common refusal grounds include unspent convictions, cautions in certain categories, periods of overstay or leave obtained by deception, and significant HMRC debt. The Home Office also considers overseas criminal records, so previous cautions or convictions in your country of origin can be relevant.
⚠️ Important: Good-character refusals are the most common reason naturalisation applications fail, and the £1,709 application fee is non-refundable. We audit the full good-character picture before recommending an application. If you have any concern about your record, call 0141 496 0321 before you pay anything to the Home Office.
Intention to reside in the UK (section 6(1) only)
Section 6(1) applicants must demonstrate that their principal home will continue to be in the UK, or that they have a close association with the UK if their work requires them to travel. Section 6(2) applicants married to a British citizen are exempt from this specific requirement, though you must still be physically present in the UK on the date of application under both routes.
Counting and reconciling absences
The absence calculation is the part of Form AN that most applicants get wrong, and errors in either direction are a problem. Understating absences can suggest a lack of candour, which feeds into the good-character assessment. Overstating them can push you over the limit and trigger a refusal on residence grounds.
Form AN requires you to list every single trip outside the UK during the qualifying period, with exact departure and return dates, destinations, and the reason for each trip. The Home Office counts the number of days you were absent, not the number of trips. A five-day holiday to Spain counts as five days out. A six-month assignment to the US counts as roughly 180 days.
Our Glasgow advisers work back through your passports, boarding passes, and any other travel records to build an accurate day-count. We apply the available discretion for borderline cases, identify whether any excess is likely to attract a favourable exercise of judgment, and advise you clearly before submission. If your absences put you close to the limit, we may recommend delaying the application until the earliest days of the qualifying window have rolled off.
The good character requirement in practice
The good-character requirement is the most unpredictable part of a naturalisation application, because it combines objective fact (criminal records, tax data) with Home Office judgment. Convictions must be disclosed regardless of whether they are spent under the Rehabilitation of Offenders Act, because the Rehabilitation of Offenders Act does not apply to immigration decisions.
Minor traffic offences and fixed-penalty notices do not generally raise a good-character issue. Cautions, conditional discharges, and criminal convictions do, and their impact depends on how long ago they occurred, the nature of the offence, and the sentence imposed. A serious conviction from many years ago may still matter. A minor caution from last year may matter more than you expect. Tax debts, CCJs, and periods of unlawful employment are also checked.
We audit the full picture at the advice stage and give you a clear assessment of risk before you apply. Where a disclosure is needed, we draft the supporting letter that puts it in the most accurate and considered context. We do not advise applicants to conceal anything: non-disclosure on a naturalisation form is a separate ground for refusal and can lead to deprivation of citizenship after it is granted.
Document checklist for Form AN
The Home Office requires a complete bundle covering identity, residence, travel, language, and good character. An incomplete bundle is one of the most common reasons for unnecessary delays. We issue every client a tailored checklist rather than a generic one, because what you need depends on your route, how you meet the English requirement, your employment type, and your travel pattern.
Identity
Your current passport plus all passports covering the qualifying period. Your Biometric Residence Permit, or eVisa screenshots if your BRP has expired. Your birth certificate. If applying under section 6(2), your marriage or civil partnership certificate and evidence that your partner is a British citizen.
Residence and absences
A complete trip schedule listing every departure and return during the qualifying period, with destinations and reasons. Supporting travel evidence (boarding passes, itineraries, passport stamps). Evidence of continuous UK address across the qualifying period: council tax bills, tenancy agreements or property deeds, utility bills.
English language and Life in the UK Test
Your SELT certificate at B1 or higher, or your qualifying degree certificate with Ecctis confirmation, or your passport if you are a national of a majority English-speaking country. Your Life in the UK Test pass certificate.
Referees
Two referees complete sections of Form AN. One must be a person of professional standing (doctor, solicitor, accountant, teacher, engineer, or similar) who is a British citizen or settled in the UK. The second must be a British citizen who has known you for at least three years and is not a relative. Both complete their sections of the form directly; you do not need a separate letter. We advise on which referees will meet the requirement and what information they need to provide.
Good character supporting evidence
For employed applicants: P60s for each tax year in the qualifying period. For self-employed applicants: HMRC self-assessment statements across the qualifying period. If you have lived in another country for 12 months or more in the last ten years, an overseas police certificate may be required. Any cautions, convictions, civil judgments, or tribunal decisions must be disclosed in the form itself, with a supporting explanation where relevant.
How the Form AN application works
Form AN is submitted online through the gov.uk service. We work through five stages with every Glasgow client.
Stage 1: Eligibility audit and timing
We confirm the correct route, calculate the earliest eligible date, audit absences and good-character risk, and agree a target submission date. If we identify a borderline absence position or a good-character issue that needs addressing, we resolve it before moving to document collection.
Stage 2: Evidence build
We send a personalised document checklist by category. You gather identity, travel, and language evidence. Your referees are briefed on what they need to complete. We chase anything outstanding and flag gaps early.
Stage 3: Form AN preparation
We complete the online Form AN, enter every trip in the travel schedule, and draft a covering letter where one adds value, particularly where good-character discretion is being sought or where an absence position needs explanation.
Stage 4: Submission and biometrics
We submit the form and pay the Home Office fee on your behalf. You attend a biometric appointment at UKVCAS in Glasgow (Bath Street) to enrol your fingerprints and photograph. Documents are uploaded in advance or at the UKVCAS appointment.
Stage 5: Decision and ceremony
The Home Office issues a decision, usually within six months. If your application is approved, you receive an invitation to attend a citizenship ceremony within 90 days. Glasgow ceremonies are held at the City Chambers on George Square. You take the oath of allegiance and the pledge, receive your certificate, and become a British citizen at that moment. We help you book your ceremony appointment promptly so you use the full 90-day window efficiently.
Naturalisation costs and processing times in 2026
Naturalisation involves two Home Office charges, and there is no priority service to reduce waiting times.
| Cost | Amount | Notes |
|---|---|---|
| Form AN application fee | £1,630 | Per adult applicant; non-refundable |
| Citizenship ceremony fee | ~£80 | Paid to Glasgow Register Office; confirm current rate |
| Biometric enrolment | Included | Captured at UKVCAS appointment |
| UK passport (after ceremony) | ~£88.50 – £100.50 | Online standard; subject to change |
Total Home Office cost (excluding passport): approximately £1,710 per adult applicant. Children registering separately under the British Nationality Act pay different fees on Form MN1. Fee waivers are not generally available for naturalisation.
Standard processing is up to six months from submission. There is no priority or super-priority service. Cases referred for additional checks on good character, residence, or tax compliance can take twelve months or longer. We advise you of anything in your file that is likely to cause a referral before we submit, so you can plan around the realistic timeline.
Dual nationality and your existing citizenship
The UK does not require you to renounce your existing nationality in order to naturalise as a British citizen. You can hold a British passport alongside your original one. Whether you can legally retain your other citizenship depends on the rules of your other country, not the UK’s.
Some countries withdraw citizenship automatically when you naturalise elsewhere. India and Singapore are well-known examples. Others, including Pakistan, Australia, Canada, and most EU member states, permit dual nationality. The rules vary and can change without notice. We recommend you check your position with the relevant consulate or high commission before your citizenship ceremony, because the ceremony cannot be undone.
If your other country does not permit dual nationality and you choose to naturalise as British, we can help you understand the practical steps, but the decision and any communication with your other country’s authorities is yours to manage.
Children registering as British citizens
Children do not apply for naturalisation under section 6 of the British Nationality Act. Their route depends on how and where they were born, and the citizenship status of their parents. The most common routes are registration under section 3(1) (a minor born outside the UK) or section 1(3) (a minor born in the UK who is not automatically British). Form MN1 covers most child registration cases. Form T applies to children born in the UK who have lived here for the first ten years of their life.
We assess each child’s eligibility alongside the parent’s Form AN application, so that both are filed at the same time where possible. Children’s registration fees differ from the adult naturalisation fee; we confirm the current amounts at the advice stage.
The citizenship ceremony in Glasgow
Once the Home Office approves your application, you have 90 days to attend a citizenship ceremony. Missing the 90-day window is a serious problem, as your naturalisation lapses and you would need to reapply. Glasgow ceremonies are held at the City Chambers on George Square, organised by Glasgow Register Office. Ceremonies typically run on a weekly basis.
At the ceremony you take an oath of allegiance (or an affirmation if you prefer not to swear on a religious text), make a citizenship pledge, and receive your certificate of naturalisation. You become a British citizen at the moment of taking the oath. Your friends and family are welcome to attend. Shortly after the ceremony you can apply for a British passport, typically processed in three to six weeks on the standard service.
What changes after citizenship
British citizenship removes all immigration conditions on your life in the UK. You no longer need to renew leave, maintain a visa, or worry about absence limits affecting your status. You can live and work in the UK indefinitely, vote in UK general elections and local elections, stand for public office, and apply for a British passport that you can use to travel visa-free to a wide range of countries. You can pass British citizenship to children born outside the UK in certain circumstances. And you will never need to make another immigration application in the UK.
Your first practical step after the ceremony is applying for a British passport. We can help you gather the references and documents needed so the application goes in within days of receiving your certificate.
If your naturalisation application is refused
Naturalisation has no statutory right of appeal. Unlike most immigration decisions, a refusal cannot be taken to the First-tier Tribunal. The options available depend on the reasons for refusal.
Where the refusal contains a factual error or a misapplication of Home Office policy, you can request reconsideration by writing formally to the Home Office and setting out the error. Where the good-character or residence position has improved since the application was submitted, a fresh application once you are in a stronger position is often the cleanest route. Where the decision is alleged to be unlawful on public law grounds, judicial review in the Administrative Court is available, but it is complex, time-limited, and requires specialist legal representation.
If your application is refused, we review the refusal letter in detail against the British Nationality Act and the published guidance, and advise you honestly on which route carries the best prospect. We prepare reconsideration correspondence and fresh applications. Where judicial review is the only realistic path forward, we refer you to a specialist public law representative who can advise on merits and take the matter forward. We do not conduct judicial review proceedings ourselves.
The full route from ILR to citizenship
For most clients at our Glasgow office, naturalisation is the final chapter of a longer journey. A skilled worker who arrived in 2019 on a work visa might have extended that visa, reached ILR in 2024, and become eligible for citizenship in 2025. A spouse who arrived in 2021 on a partner visa might have extended to FLR(M), reached ILR in 2024, and become eligible for citizenship immediately on receiving ILR. The route varies, but the goal is the same.
We work on ILR applications and citizenship applications in the same office, so the file built for ILR is not thrown away. The residence evidence, the English certificate, the Life in the UK Test, the good-character picture: all of it carries forward. The citizenship application becomes a planned next step rather than a new process from scratch. Our ILR service sets clients up for naturalisation from the day ILR is granted.
British citizenship applications from Glasgow
Our office is in Glasgow. We meet clients in person, and we work with clients across Paisley, Renfrew, Hamilton, and the wider west of Scotland by phone, video call, and secure document exchange. Most of the work for a naturalisation application is done remotely: document collection, form completion, and submission are all handled online. The UKVCAS biometric appointment is at Bath Street in Glasgow city centre.
Glasgow is home to one of Scotland’s most diverse communities, and naturalisation applications here cover applicants from Pakistan, India, Nigeria, China, Poland, and dozens of other countries. The questions around dual nationality, overseas criminal records, and overseas English qualifications come up regularly, and we deal with them as standard. If you are ready to apply, or just want to know whether you qualify, call 0141 496 0321 or request a callback for a free initial assessment.
How UK Visa Assistance helps
UK Visa Assistance is a Glasgow immigration practice. We prepare Form AN applications end to end: confirming the right route, reconciling your absence record, auditing good-character risk before you pay the Home Office fee, completing the form, and submitting on your behalf. We also assess children’s registration alongside the parent application and coordinate your Glasgow citizenship ceremony. Our fees are fixed and agreed in advance. To start, call 0141 496 0321 or request a callback for a free initial assessment of your naturalisation application.
Frequently asked questions
Most ILR holders must wait 12 months after ILR is granted before applying under section 6(1). If you are married to or in a civil partnership with a British citizen, you can apply immediately after receiving ILR under section 6(2), because the three-year residence test and the ILR grant run in parallel. We diary every Glasgow client's earliest eligible date and start preparation around three months before.
Section 6(1) is the standard route for adults with ILR who are not married to a British citizen: five years of lawful UK residence, at least 12 months of those on ILR or settled status, and the absence, language, knowledge-of-life, and good-character tests. Section 6(2) is the spouse or civil-partner route: three years of lawful UK residence including the ILR grant (no separate 12-month post-ILR wait). Both use Form AN and cost the same.
For section 6(1): no more than 450 days outside the UK across the five-year qualifying period, and no more than 90 days in the final 12 months. For section 6(2): no more than 270 days across the three-year period, and no more than 90 days in the final 12 months. The Home Office may exercise discretion for limited excess absences where compelling reasons exist, but discretion is not guaranteed. We reconcile your full travel record before recommending a submission date.
The Home Office checks your criminal record in the UK and overseas, your compliance with immigration rules throughout your time in the UK, your tax record with HMRC, any county court or civil judgments against you, and any adverse insolvency or company-director history. Recent unspent convictions and immigration compliance failures are the most common refusal grounds. We audit the full picture at the advice stage, before you pay the non-refundable fee.
You need English at CEFR B1 level in speaking and listening, rising to B2 from 26 March 2027. If you passed a B1 Secure English Language Test for your ILR application, that certificate is accepted for naturalisation provided it was still in validity at the ILR application date and remains acceptable under current policy. You may also qualify through a degree taught in English, nationality of a majority English-speaking country, or a qualifying disability. We confirm which applies to you.
No. Your Life in the UK Test pass certificate does not expire once issued. If you passed the test for your ILR application, the same certificate is accepted for naturalisation. Applicants aged 65 or over are exempt from the test entirely. We confirm exemption eligibility at the advice stage.
The UK does not require you to renounce your existing nationality in order to naturalise as a British citizen. Whether you can hold dual nationality depends on the rules of your other country. Some countries, including India and Singapore, automatically withdraw citizenship when you naturalise elsewhere. Others, including Pakistan, Australia, and Canada, permit it. We advise you to confirm your position with the relevant consulate or high commission before the ceremony, as the decision cannot be reversed.
Children do not naturalise on Form AN. They may register as British citizens under separate provisions of the British Nationality Act, most commonly on Form MN1 for children born outside the UK, or Form T for those born in the UK. Eligibility depends on whether the child is settled, where they were born, and the parent's citizenship status at the time. We assess each child's route alongside the parent's Form AN so both applications are filed at the same time where possible.
You need two referees. One must be a person of professional standing (a doctor, solicitor, teacher, accountant, engineer, or similar) who is either a British citizen or settled in the UK. The second must be a British citizen who has known you personally for at least three years and is not a relative. Each referee completes a section of Form AN, confirming your identity and that they know of no reason you should not be granted citizenship. We advise on which referees will satisfy the requirement.
The standard Home Office processing time is around six months from submission. There is no priority service for naturalisation, unlike most other immigration categories. Cases referred for additional checks, typically on good character, residence, or tax compliance, can take twelve months or longer. We flag anything in your file likely to trigger a referral before we submit, so you are not surprised by the delay.
Once your application is approved, you receive an invitation to attend a citizenship ceremony within 90 days. Glasgow ceremonies are held at the City Chambers on George Square, typically weekly. You take an oath of allegiance (or affirmation if you prefer), make a pledge, and receive your certificate of naturalisation. You become a British citizen at the moment of taking the oath, not at the date of the Home Office decision. From that moment, you can apply for a British passport.
There is no statutory right of appeal against a naturalisation refusal. The available options are: a formal reconsideration request to the Home Office (setting out factual errors or policy misapplication in the decision), a fresh application once you have addressed the reasons for refusal, or judicial review in cases where the decision is unlawful on public law grounds. We review the refusal letter in detail, advise honestly on which route has the strongest prospects, and where judicial review is the only viable path, we refer you to a specialist representative. We do not conduct judicial review proceedings ourselves.