The UK allows dual citizenship. You do not have to give up your current nationality to become British. But many countries — including India, China, and the Philippines — do not allow their citizens to hold a second passport. Pakistan does allow dual citizenship with the UK specifically, though rules vary. If your home country is on that list, becoming British may mean losing your original citizenship automatically.
Check your own country's rules before you apply for British citizenship. This decision is often irreversible.
Key Facts at a Glance
| Detail | Information |
|---|---|
| UK position on dual nationality | Allowed — no restriction |
| Requirement to renounce original citizenship | Never required by the UK |
| Automatic loss of original citizenship | Depends on YOUR country's law |
| Indian dual citizenship | Not permitted — Indians lose Indian citizenship on naturalisation |
| Pakistani dual citizenship with UK | Permitted — UK is on Pakistan's bilateral agreement list |
| Nigerian dual citizenship | Permitted |
| Chinese dual citizenship | Not permitted |
| Filipino dual citizenship | Not permitted (RA 9225 allows re-acquisition only in specific circumstances) |
| EU countries (general) | Most permit dual citizenship — check country-by-country |
| USA dual citizenship | Permitted |
| Canadian dual citizenship | Permitted |
Quick Overview
✅ The UK places no restriction on dual nationality — you keep your British passport regardless of what your home country decides
✅ USA, Canada, Australia, most EU countries, and Nigeria allow dual citizenship with the UK
⚠️ India, China, and the Philippines do not permit dual citizenship — becoming British means losing your original passport
⚠️ Loss of original citizenship in your home country can happen automatically — you may not receive a formal notice
📌 Pakistan allows dual citizenship with the UK specifically — both governments permit it
📌 Philippines has a re-acquisition law (RA 9225) but this primarily helps Filipinos born abroad or those who naturalised before 2003 — check carefully
💡 Consult your home country's embassy in the UK before naturalising — they can confirm exactly what you will lose
💡 Some countries (like India) offer an Overseas Citizen of India (OCI) card — this is not a passport but gives significant rights
The UK Position — Dual Nationality Is Allowed
The UK has no law requiring you to renounce your existing citizenship when you become British. You can hold a British passport alongside another passport if your other country permits it.
The UK's position has been the same for decades. When you naturalise as British, the Home Office does not require proof that you have given up your previous citizenship. The ceremony, the oath, and the certificate do not legally terminate any other citizenship.
What happens to your original citizenship is entirely determined by your home country's law — not UK law.
Countries That Allow Dual Citizenship With the UK
The following countries are generally recognised as permitting dual citizenship. This list is not exhaustive — always verify with the country's embassy.
| Country | Dual Citizenship Allowed? |
|---|---|
| Australia | Yes |
| Canada | Yes |
| USA | Yes |
| Ireland | Yes |
| Nigeria | Yes |
| Ghana | Yes |
| Jamaica | Yes |
| South Africa | Yes (with conditions for some categories) |
| France | Yes |
| Germany | Yes (since 2024) |
| Italy | Yes |
| Spain | Yes (with conditions) |
| Portugal | Yes |
| Poland | Yes |
| Romania | Yes |
| Bangladesh | Yes |
| Sri Lanka | Yes (with conditions) |
Countries That Do Not Allow Dual Citizenship With the UK
These countries generally require citizens to give up their original nationality when acquiring another:
| Country | Position on Dual Citizenship |
|---|---|
| India | Not permitted — Indian citizenship is lost automatically on becoming British |
| China | Not permitted — PRC does not recognise dual nationality |
| Pakistan | Permitted with the UK — bilateral agreement in place |
| Philippines | Not generally permitted — RA 9225 provides limited re-acquisition for former Filipinos |
| Japan | Not permitted — Japanese nationals must choose by age 22 |
| Malaysia | Not permitted |
| Singapore | Not permitted |
| South Korea | Not permitted (with limited exceptions) |
| Saudi Arabia | Not permitted |
| UAE | Not permitted |
| Kuwait | Not permitted |
| Egypt | Not permitted in most circumstances |
India — The Most Common Question
India does not allow dual citizenship. This is confirmed in the Indian Citizenship Act 1955.
When you become a British citizen, you automatically lose Indian citizenship. You are required to surrender your Indian passport to the Indian High Commission after naturalisation. Keeping and using an Indian passport after becoming British is an offence under Indian law.
What India offers instead: The Overseas Citizen of India (OCI) card. This is not citizenship and does not give you an Indian passport. But it gives lifelong visa-free entry to India, the right to live and work there, and most rights of a resident except voting rights, holding public office, and buying certain agricultural land. Many British-Indians find OCI sufficient.
Apply for OCI through the Indian High Commission after naturalising.
Pakistan — Dual Citizenship Is Permitted With the UK
Pakistan allows dual citizenship with the UK. The UK is on Pakistan's approved bilateral list, meaning Pakistani nationals who become British citizens do not automatically lose their Pakistani citizenship.
Pakistani nationals who naturalise as British can keep their Pakistani passport. The NICOP (National Identity Card for Overseas Pakistanis) is the identity document used by dual nationals when in Pakistan.
Always confirm your specific situation with the Pakistani High Commission in London before naturalising — individual circumstances can vary.
Philippines — The RA 9225 Question
The Philippines passed Republic Act 9225 (the Citizenship Retention and Re-acquisition Act of 2003). This allows former Filipino citizens who naturalised abroad to re-acquire Filipino citizenship.
However, this is not full dual citizenship in the traditional sense. It primarily helps:
- Filipinos born abroad who never held a Philippine passport
- Filipinos who naturalised in another country before 2003
If you are a Filipino national applying for British citizenship for the first time, your Philippine citizenship is likely to be lost under Philippine law. RA 9225 re-acquisition is a separate process you would need to pursue afterwards. Consult the Philippine Embassy before naturalising.
Germany — A Recent Change
Germany changed its law in 2024. German nationals can now hold a second citizenship without losing their German passport. This means German-British dual citizenship is now possible without giving up either.
If you are German and were previously hesitant to naturalise as British for fear of losing German citizenship, this barrier no longer applies as of 2024.
What "Automatic Loss" Means in Practice
Some countries terminate citizenship automatically when you acquire another nationality. You may not receive a letter telling you this has happened.
In practice this means:
- Your home country passport becomes invalid even if it has not physically expired
- Using the passport of a country whose citizenship you have lost can cause legal problems in that country
- Some countries have criminal penalties for continuing to use a cancelled passport
This is not theoretical. Indian and Chinese nationals who continued to use their original passports after naturalising as British have faced issues at the border of their home country.
Surrender your original passport to the relevant embassy promptly after naturalising if your home country requires it.
Common Mistakes
❌ Assuming the UK requires you to renounce your original citizenship It does not. The UK has no such requirement. You can hold dual nationality if your home country allows it. The oath of allegiance at the citizenship ceremony does not legally terminate any other citizenship.
❌ Assuming dual citizenship is automatically allowed everywhere Each country sets its own rules. The fact that the UK allows it does not mean your home country does. Always check both sides.
❌ Continuing to use an original passport after it becomes invalid If your home country cancels your citizenship when you naturalise as British, your original passport becomes invalid even if the physical document has not expired. Using it can cause legal problems.
❌ Not applying for OCI (if Indian) before or promptly after naturalising The OCI card is a valuable document for British nationals of Indian origin. Apply for it promptly after naturalisation — it takes time to process and you will want it before travelling to India.
❌ Assuming Pakistani NICOP means full dual citizenship It does not. Having a NICOP card and having dual Pakistani-British citizenship are different things. Pakistani law generally does not permit dual citizenship even if bilateral ties exist.
Expert Tips
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Contact your home country's embassy before naturalising. They can confirm exactly what happens to your original citizenship when you become British. This is free advice and can prevent an irreversible mistake.
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Apply for OCI (India) or equivalent early. If you are losing Indian citizenship, apply for OCI as soon as possible after naturalising — ideally prepare the application in advance so you can submit it promptly.
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Check bilateral agreements. Some countries have agreements with the UK that affect citizenship rules. Pakistan, for example, has a complex relationship with the UK on this. Always go to the primary source — the embassy — not online forums.
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Germany changed its rules in 2024. If you are German and this was a barrier before, it no longer is. German nationals can now hold British and German citizenship simultaneously.
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Keep evidence of when you naturalised. If there are ever questions about the validity of your original passport or when your original citizenship ended, your certificate of naturalisation and the date of your citizenship ceremony are the key documents.
Frequently Asked Questions
Does the UK allow dual citizenship?
Yes. The UK places no restriction on dual nationality. You can become British and keep another citizenship if your home country permits it. The UK government does not require you to renounce your previous nationality.
Will I lose my original citizenship if I become British?
It depends entirely on your home country's law. The UK will not take away your original citizenship — but your home country may do so automatically. India, China, Pakistan, and the Philippines are among countries that do not permit dual citizenship.
Can I hold a British and Indian passport?
No. India does not allow dual citizenship. When you become a British citizen, you automatically lose Indian citizenship and must surrender your Indian passport. India offers the Overseas Citizen of India (OCI) card as an alternative — it gives lifelong visa-free access to India but is not a passport.
What countries do not allow dual citizenship?
Major countries that do not permit dual citizenship include India, China, Japan, Pakistan (general rule), the Philippines (general rule), Malaysia, Singapore, South Korea, and several Gulf states including Saudi Arabia, UAE, and Kuwait. This list is not exhaustive — check your country's rules directly.
Do I have to give up my citizenship to become British?
The UK never requires you to give up your original citizenship. But your home country may cancel your citizenship automatically when you acquire another. This is the more common scenario. Always check your home country's rules before naturalising.
Does Germany allow dual citizenship with the UK?
Yes, since 2024. Germany changed its law and now permits German nationals to hold a second citizenship without losing their German passport. German-British dual citizenship is now possible.
How This Aligns With Official Guidance
The UK's position on dual nationality is set out in the British Nationality Act 1981. The UK does not require renunciation of any other citizenship. The rules on what happens to your original citizenship are governed entirely by your home country's domestic law. Each country's embassy in the UK can confirm the exact position for their nationals. GOV.UK also provides guidance on dual nationality for British citizens.
Official Resources
- Dual nationality — GOV.UK
- British citizenship — GOV.UK
- OCI Card — Indian High Commission in the UK
- Pakistani High Commission London
- Philippine Embassy London
Our Free Tools
While you prepare for citizenship, use these tools to pass the Life in the UK test:
- 570 practice questions — free, adaptive
- 45 free mock tests — full timed tests
- Cheat sheet — key facts to memorise before test day
- FAQ — common questions answered
Before You Naturalise
Speak to your home country's embassy first. Confirm exactly what you will gain and what you will lose. If you are Indian, prepare your OCI application in advance. If you are in any doubt, regulated immigration advice can help you understand the full picture before you make an irreversible decision. Then prepare for the Life in the UK test — it is a required step on the path to citizenship.
Last reviewed: May 2026 — figures correct at time of publication. Always verify with your home country's embassy.