TL;DR
The differences between UK permanent status (ILR or Settled Status) and British citizenship: rights conferred, voting eligibility, dual citizenship options, and the reasons many residents stop at permanent status without naturalising.
Key facts
- ILR and Settled Status confer indefinite right to live, work, and study in the UK.
- British citizenship confers the right to a British passport and voting in all UK elections.
- The UK permits dual citizenship; the holder's other country may or may not.
- Citizenship by naturalisation typically requires holding ILR for at least 12 months (waived for spouses of British citizens).
- Application fees for citizenship are separate from and additional to ILR application fees.
- British citizenship is held by around 88% of the UK population; the remainder are mostly EU nationals with Settled Status, non-EU nationals with ILR or temporary leave, or short-term visitors.
- Annual naturalisation grants typically run 150,000+ per year per Home Office statistics.
- Some Commonwealth citizens with ILR can vote in UK general elections without naturalising.
- Renunciation of British citizenship requires holding another nationality to avoid statelessness.
- British citizenship cannot lapse through long absence; ILR lapses after 2 continuous years of absence.
- Returning Resident visa is at Home Office discretion and requires evidence of strong continuing UK ties.
UK permanent status (ILR or Settled Status) and British citizenship both provide long-term right to live in the UK, but the additional benefits of citizenship are specific. This article compares the two and explains the typical reasons for choosing one over the other.
What permanent status provides
ILR or Settled Status provides the right to live, work, study, and access most public services in the UK without restriction. It is indefinite and not subject to renewal. Holders can travel in and out of the UK without needing a visa, subject to absence limits.
What citizenship adds
British citizenship adds the right to a British passport, the right to vote in all UK elections including general elections, the right to stand for election to Parliament, and the security that the status cannot lapse through long absence from the UK. Citizens also have specific consular protection rights when abroad.
Dual citizenship
The UK permits dual citizenship. Whether the holder's other country permits dual citizenship is a separate question; some countries require their citizens to renounce other citizenships on naturalising elsewhere. Researching the other country's position is important before naturalising as British.
Tax considerations
UK tax residence is based on the Statutory Residence Test, not on immigration status. Acquiring British citizenship does not automatically change tax residence. Domicile status is separate again and may be affected by long-term UK residence over time.
Reasons to stay at permanent status
Some holders choose to keep ILR rather than naturalise. Reasons include the cost of citizenship, the requirement to renounce the existing citizenship under some other countries' rules, and the absence of a specific need for a British passport.
Detailed comparison of rights
Right to live and work: identical (ILR and citizenship both provide unrestricted right to live, work, study in the UK).
Right to British passport: citizenship only. ILR holders use their original nationality's passport for international travel.
Voting eligibility: citizens can vote in all UK elections (general, local, devolved). Irish, Commonwealth, and some other nationals with ILR can vote in UK general elections without naturalising. EU citizens with Settled Status can vote in some local elections under transitional arrangements; rules vary.
Public funds access: both provide access to means-tested benefits (the no-recourse-to-public-funds condition does not apply to either). Specific benefits have their own residence or contribution requirements.
Immigration status security: citizenship cannot be lost through long absence; ILR can lapse after 2 continuous years of absence. Citizenship can be revoked in limited circumstances (typically serious criminality or fraud); ILR can also be revoked under similar circumstances.
Family sponsorship: both can sponsor family member visas. Citizens can typically sponsor without the same financial requirement as some ILR holders face.
Standing for elected office: most elected positions in UK Parliament require British or qualifying Commonwealth citizenship. Local government positions vary by nationality and residence status.
Voting eligibility in detail
British citizens have full voting rights in all UK elections including UK Parliament general elections, devolved Parliament elections (Scotland, Wales, Northern Ireland), local elections, mayoral elections, and elected police and crime commissioner elections.
Irish citizens resident in the UK can vote in UK general elections, devolved Parliament elections (in some cases), and local elections without naturalising. This reflects the long-standing UK-Ireland relationship.
Commonwealth citizens with leave to remain (including ILR) can vote in UK general elections, devolved Parliament elections, and local elections. The Commonwealth includes 56 member states; specific eligibility is confirmed by the Electoral Commission.
EU citizens with Settled Status can vote in some local elections under transitional arrangements following Brexit. The specific rules vary by election type and the EU country of origin. The Electoral Commission publishes current eligibility.
Other nationalities with ILR but without the above categories cannot typically vote in UK elections. Naturalisation is the route to voting rights for these nationalities.
Dual citizenship considerations in detail
The UK permits dual citizenship without restriction; British citizens can hold any number of other citizenships. Whether the holder's other country permits dual citizenship is a separate question.
Countries that generally do not permit dual citizenship and require renunciation include: China (mostly); India (Indians naturalising elsewhere automatically lose Indian citizenship); Singapore; Japan; South Korea; and several others. Naturalising as British typically triggers loss of the original citizenship in these cases.
Countries that permit dual citizenship without restriction include: most EU member states; USA (with some tax implications); Canada; Australia; New Zealand; and many others. British naturalisation does not affect the original citizenship in these cases.
Countries with conditional or special rules require specific research. Some countries require notification of the dual citizenship; some have tax implications; some permit dual citizenship only after specific approval. The relevant embassy or government website provides the authoritative position.
The decision to naturalise should consider the potential loss of original citizenship. For some, this is a significant concern (such as those with family or property in the original country who need to maintain that citizenship). For others, the gain of British citizenship outweighs the loss.
Tax considerations in detail
UK tax residence is determined by the Statutory Residence Test, which is independent of citizenship or immigration status. A British citizen can be non-UK tax resident if they meet the SRT criteria for non-residence. An ILR holder can be UK tax resident from day one of arrival.
Domicile is a separate concept that affects inheritance tax and (historically) the remittance basis. Acquiring British citizenship can be evidence of UK domicile but is not the only factor. Long-term UK residence leads to deemed UK domicile after 15 of the previous 20 tax years.
Some countries tax citizens regardless of residence. The USA is the most notable example: US citizens are taxed on worldwide income regardless of where they live. UK citizens with US citizenship face complex dual filing obligations; specialist tax advice is typically essential.
The decision to naturalise as British typically does not change UK tax position because tax residence is independent of citizenship. However, the decision to renounce the original citizenship (if required by the original country) can have material tax implications if the original country taxes its citizens.
Reasons to stay at permanent status
Some ILR holders choose to keep ILR rather than naturalise. Reasons include: cost of citizenship (GBP 1,580 from April 2024 for the standard adult application); requirement to renounce existing citizenship under some other countries' rules; absence of specific need for a British passport.
The cost vs benefit analysis varies by household. For those who travel extensively, the British passport may be valuable (UK passport ranks highly in global passport indices for visa-free access). For those who travel less or whose current passport is similarly powerful, the benefit is smaller.
For those whose original country prohibits dual citizenship, the trade-off is significant. Renouncing the original citizenship is irreversible in some cases; the decision should be made carefully.
For those who plan to return to their country of origin eventually, naturalising may be unnecessary. ILR provides indefinite UK residence; if the household plans to leave the UK long-term, even ILR may eventually lapse.
Voting eligibility comparison in detail
Voting eligibility is one of the most material differences between permanent status and British citizenship. For UK Parliament general elections, British citizens vote regardless of where they live (overseas voters have a separate framework). ILR holders typically cannot vote in UK general elections; the exception is Commonwealth citizens and Irish citizens with leave to remain, who can.
For local elections in England, the eligibility is broader. British citizens, Irish citizens, Commonwealth citizens, and EU citizens (with specific bilateral arrangements for Spain, Portugal, Poland, and others) can vote. The Electoral Commission publishes the current list of eligible nationalities.
For Scottish Parliament and Welsh Senedd elections, the devolved frameworks allow broader voting rights including for EU citizens with leave to remain. The specific rules vary by election; the Electoral Commission's guidance is the authoritative reference.
For mayoral elections and elected police and crime commissioner elections, similar eligibility patterns apply with some local variations.
To vote, eligible individuals must register on the electoral roll. Registration is via GOV.UK or by post; registration deadlines before specific elections determine whether the elector can vote in that election. Some elections require photo ID at the polling station; the GOV.UK page confirms current ID requirements.
The practical takeaway: ILR holders' voting rights depend on their nationality; for those wanting full general election voting rights, British citizenship is the path; for those whose nationality already enables voting (Commonwealth, Irish, EU with bilateral arrangements), the additional voting benefit of citizenship is smaller.
Security of status and the lapse risk
One of the most material practical differences is the security of status. British citizenship cannot be lost through long absence; a British citizen can live abroad for decades and remain a citizen. ILR can lapse after 2 continuous years of absence from the UK; Settled Status can lapse after 5 years (4 years for Swiss nationals).
For ILR holders planning long-term overseas relocation (such as for career, retirement, or family reasons), the lapse risk is material. A move abroad of 2+ years without UK visits can result in losing ILR; recovering ILR after lapse typically requires the Returning Resident visa route, which is at Home Office discretion and requires evidence of strong UK ties despite the absence.
For British citizens in the same circumstances, the issue does not arise. The citizenship continues regardless of where the citizen lives. Returning to the UK is at the citizen's discretion; no immigration permission is needed.
Worked example: an ILR holder takes a 3-year posting abroad for an international employer. Without UK visits during the posting, ILR lapses after the 2-year mark. The Returning Resident visa would be needed to re-enter the UK as a resident; the application requires evidence of UK ties (UK property, UK family, UK employment with the same employer). For a British citizen in the same situation, the question does not arise.
For applicants whose long-term plans may involve extended overseas residence, naturalising as British provides protection against this risk. The 12-month wait after ILR is a small investment for the long-term security.
Returning Resident visa: practical use after ILR lapse
The Returning Resident visa is the route to re-enter the UK after ILR has lapsed through 2+ years of continuous absence. The visa is applied for from outside the UK at the British embassy or high commission.
Eligibility requires the applicant to demonstrate strong UK ties despite the absence: UK property ownership; close family in the UK; UK employment; long previous UK residence; reasons for the absence (such as overseas employment or family care).
The application is at Entry Clearance Officer discretion; success depends on the strength of the case. For applicants with weak UK ties or insufficient evidence of intention to resume residence, the application may be refused. Specialist immigration legal advice can assess the case and prepare strong supporting evidence.
Disclaimer
This article provides general information based on rules and figures published by UK government and regulator sources as of May 2026. It is not personal financial, legal, immigration or tax advice. Rules, fees and figures change and individual circumstances vary. Readers should check primary sources or consult a qualified, regulated adviser before acting on any information here.
Frequently asked questions
Can citizenship be lost through long absence?
British citizenship is not lost through long absence. ILR can lapse after 2 years of continuous absence. This is a key difference; for those planning long periods outside the UK, citizenship provides more security than ILR.
Does British citizenship affect inheritance tax?
IHT depends on domicile, not citizenship. Citizenship can be evidence relevant to domicile but is not the only factor. UK-domiciled individuals face IHT on worldwide assets; non-UK-domiciled individuals face IHT on UK assets only. Long-term UK residence (typically 15 of 20 tax years) leads to deemed UK domicile regardless of citizenship.
Is the Life in the UK Test required for both ILR and citizenship?
It is required for most ILR applications and most citizenship applications. Once passed for ILR, it does not need to be retaken for citizenship. The certificate is valid indefinitely once obtained. Exemptions apply for under 18s, over 65s, and certain other categories.
Can citizenship be backdated?
Citizenship is granted from the date the application is approved (typically the date of the ceremony). It is not backdated. For some inherited citizenship situations (such as discovering ancestral entitlement to British citizenship), the citizenship may be effective from birth; this is different from naturalisation.
Are citizenship application fees recoverable on refusal?
The processing fee is generally not refunded if the application is refused. The biometric and ceremony fees may be refunded. The largest portion of the GBP 1,580 fee (around GBP 1,395 is the processing fee) is not refundable. Refusal is expensive; ensuring eligibility before applying is important.
Can ILR holders study in the UK on the same terms as citizens?
Yes for most undergraduate and postgraduate education. Tuition fees for ILR holders are typically at the 'home' rate (currently GBP 9,250 for undergraduates in England). Some specific funding (such as Student Loans for tuition and maintenance) requires ILR or settled status alongside the usual eligibility criteria.
Does ILR affect mortgage applications?
Most UK mortgage lenders treat ILR holders the same as British citizens. Some specific lenders restrict products to British citizens only; the broader lender market is accessible to ILR holders. The mortgage hub articles cover this in more detail.
Frequently asked questions
Can citizenship be lost through long absence?
British citizenship is not lost through long absence. ILR can lapse after 2 years of continuous absence. This is a key difference; for those planning long periods outside the UK, citizenship provides more security than ILR.
Does British citizenship affect inheritance tax?
IHT depends on domicile, not citizenship. Citizenship can be evidence relevant to domicile but is not the only factor. UK-domiciled individuals face IHT on worldwide assets; non-UK-domiciled individuals face IHT on UK assets only. Long-term UK residence (typically 15 of 20 tax years) leads to deemed UK domicile regardless of citizenship.
Is the Life in the UK Test required for both ILR and citizenship?
It is required for most ILR applications and most citizenship applications. Once passed for ILR, it does not need to be retaken for citizenship. The certificate is valid indefinitely once obtained. Exemptions apply for under 18s, over 65s, and certain other categories.
Can citizenship be backdated?
Citizenship is granted from the date the application is approved (typically the date of the ceremony). It is not backdated. For some inherited citizenship situations (such as discovering ancestral entitlement to British citizenship), the citizenship may be effective from birth; this is different from naturalisation.
Are citizenship application fees recoverable on refusal?
The processing fee is generally not refunded if the application is refused. The biometric and ceremony fees may be refunded. The largest portion of the GBP 1,580 fee (around GBP 1,395 is the processing fee) is not refundable. Refusal is expensive; ensuring eligibility before applying is important.
Can ILR holders study in the UK on the same terms as citizens?
Yes for most undergraduate and postgraduate education. Tuition fees for ILR holders are typically at the 'home' rate (currently GBP 9,250 for undergraduates in England). Some specific funding (such as Student Loans for tuition and maintenance) requires ILR or settled status alongside the usual eligibility criteria.
Does ILR affect mortgage applications?
Most UK mortgage lenders treat ILR holders the same as British citizens. Some specific lenders restrict products to British citizens only; the broader lender market is accessible to ILR holders. The mortgage hub articles cover this in more detail.
Sources
- https://www.gov.uk/apply-citizenship-naturalisation
- https://www.gov.uk/indefinite-leave-to-remain
- https://www.gov.uk/settled-status-eu-citizens-families
- https://www.gov.uk/dual-citizenship
- https://www.gov.uk/government/organisations/home-office
- https://www.gov.uk/types-of-british-nationality
- https://www.electoralcommission.org.uk/i-am-a/voter/who-can-vote
- https://www.gov.uk/dual-citizenship