Becoming a British citizen: naturalisation

Naturalisation is the process by which most people who were not born British can become British citizens. For Nepalis who have been in the UK for a number of years, it is often the final step in a long immigration journey. However, before you apply, there is one critical issue specific to Nepali nationals that you must research carefully: Nepal does not generally allow dual citizenship. Under Nepali law, a Nepali citizen who voluntarily takes another country’s citizenship automatically loses Nepali citizenship. The rules and any future changes are a matter of Nepali law, not UK law - you should verify the current position with the Embassy of Nepal or a legal adviser before you proceed.

Basic eligibility

To apply for naturalisation as a British citizen you will generally need to:

• Be aged 18 or over.
• Hold Indefinite Leave to Remain (ILR) or another form of settled status, and have held it for at least twelve months at the time you apply (the waiting period does not apply if your spouse or civil partner is a British citizen).
• Have been resident in the UK for a qualifying period - usually five years immediately before the date of application, with the last twelve months spent with settled status.
• Not have spent more than a set number of days outside the UK during the qualifying period. As a guide, around 450 days in the five-year period and no more than around 90 days in the final twelve months have been the limits - but check the exact figures at gov.uk/apply-citizenship-indefinite-leave-to-remain as these can change.
• Pass the Life in the UK test.
• Meet the English language requirement.
• Be of good character.

The Life in the UK test

If you have not already passed the Life in the UK test for your ILR application, you will need to pass it before you can naturalise. The test covers British history, culture, values, and everyday life. You book and sit the test at an approved test centre and receive your result immediately. A pass certificate does not expire. Official study materials and booking are available at gov.uk/life-in-the-uk-test.

English language requirement

You need to show you speak and understand English at B1 level or above on the Common European Framework of Reference. If you already demonstrated this for an earlier visa application, you may not need to provide new evidence - check the current guidance for your situation.

Good character requirement

The Home Office assesses whether you meet the “good character” standard. This considers factors such as criminal convictions, immigration history (including any previous overstaying or refusals), and financial conduct. If you have any concerns in this area, seek advice from a qualified immigration adviser before applying.

The citizenship ceremony

If your application is approved, you will be invited to attend a citizenship ceremony - usually organised by your local council. At the ceremony you take the Oath (or Affirmation) of Allegiance and the Pledge to uphold the rights and freedoms of the UK. After the ceremony you receive your naturalisation certificate, which you can use to apply for a British passport.

Dual nationality and Nepali citizens - a critical note

Nepal does not generally allow dual citizenship. Under the Nepal Citizenship Act 2063 (2006), a Nepali citizen who voluntarily acquires the citizenship of a foreign country automatically loses Nepali citizenship - so becoming a British citizen will normally end your Nepali citizenship. This is a serious and personal decision.

What the Act does offer is Non-Resident Nepali (NRN) citizenship, under section 7(ka) of the Act, which was amended in 2082 (2025) by the Nepal Citizenship (Second Amendment) Act. It is open to someone who has taken the citizenship of a country outside SAARC, such as the UK, and who - or whose parent or grandparent - was a Nepali citizen by descent or birth. It lets the holder enjoy economic, social and cultural rights in Nepal; it is not full Nepali citizenship. NRN citizenship is issued by a District Administration Office in Nepal; ask the Embassy how to apply from the UK. It is separate from the NRN ID card, which has its own rules.

This is general information, not advice. This guide cannot advise you on Nepali law. Before you apply for British citizenship, contact the Embassy of Nepal in London and consider taking independent legal advice. Nepal’s laws can change, so always check the current position.

Application fees and processing time

There is a fee to apply for naturalisation. The Home Office updates fees periodically - the current fee is shown during the online application. Processing times vary; check the current expected timescales on GOV.UK before you plan around a specific date.

Rules change - always check GOV.UK

UK citizenship rules and requirements can change. The official guidance at gov.uk/becoming-a-british-citizen is the only reliable source. If your case is complex - gaps in residence, criminal history, or any immigration complications - consider consulting an OISC-regulated adviser or solicitor.

Official application guidance: gov.uk/apply-citizenship-indefinite-leave-to-remain.