Becoming a British citizen is the final milestone for many migrants who have lived, worked, and built a life in the United Kingdom. In 2026, the rules remain grounded in long‑standing UK nationality law, but the Home Office has tightened documentation checks and clarified residency requirements. There are still two main pathways: registration and naturalisation, each with its own eligibility rules.
Two main pathways to British citizenship
Registration
Registration is generally for people who already have a claim to British nationality. You may be eligible to register if you fall under any of these categories:
- You hold another form of British nationality (e.g., British Overseas Citizen, British Overseas Territories Citizen).
- You were born in the UK before 1 January 1983.
- You were born before 1 January 1983 to a British mother (previously excluded before law reforms).
- You were born before 1 July 2006 to a British father who was not married to your mother.
- You are stateless and meet specific residency rules.
- You are under 18 and meet the criteria for child registration.
Naturalisation
Naturalisation is the most common route for adult migrants. To qualify, you must meet all of the following:
- Be 18 years old or older.
- Be of good character.
- Meet the English language requirement.
- Pass the Life in the UK Test.
- Meet the residency requirement.
- Intend to continue living in the UK.
- Hold Indefinite Leave to Remain (ILR) or Settled Status.
Naturalisation requirements (standard route)
Residency requirement
- Five years of lawful residence in the UK before your application date.
- No more than 450 days spent outside the UK during those five years.
- No more than 90 days outside the UK in the last 12 months.
- ILR or Settled Status held for at least 12 months (unless married to a British citizen).
Good character requirement
The Home Office checks criminal convictions, immigration history, financial behaviour, and any deception in previous applications.
English language requirement
You must meet the English requirement through an approved English test, a degree taught in English, or being from an English‑speaking country (not applicable to Filipinos).
Life in the UK Test
A mandatory exam covering British history, culture, and laws.
Naturalisation if you are married to a British citizen
If you are married to or in a civil partnership with a British citizen, the rules are slightly different.
Eligibility requirements
- You must be 18 or older.
- You must be of sound mind and able to make your own decisions.
- You must be of good character.
- You must pass the Life in the UK Test.
- You must meet the three‑year residency requirement.
- You must hold ILR or Settled Status at the time of application.
Residency rules for spouses
- Lived in the UK for at least three years before applying.
- No more than 270 days outside the UK in those three years.
- No more than 90 days outside the UK in the last 12 months.
- No immigration law breaches.
How to apply for British citizenship (2026 process)
Online individual application (recommended)
The UK government now encourages online applications through the official GOV.UK portal. You will need to upload:
- Your passport
- Your BRP (Biometric Residence Permit)
- Proof of residency
- English test certificate
- Life in the UK Test pass notification
- Evidence of ILR or Settled Status
Local authority services
Some local councils still offer document checking or support services. They review your documents and forward them to UKVI.
Hiring an immigration adviser
You may hire a private immigration lawyer or adviser. They must be registered with the Office of the Immigration Services Commissioner (OISC).
Biometrics requirement
All applicants must submit biometrics (fingerprints and photo). The current fee is £19.20.
Updated fees for 2026
- Naturalisation (adult): £1,500+
- Registration (adult): £1,200+
- Citizenship ceremony: £80
Fees change annually, so always check the latest GOV.UK fee table.
Where to send documents
Most applications are now digital. If physical documents are required, UKVI will direct you to a secure scanning centre. The older Liverpool addresses are no longer standard for most applicants.
Processing times
Most applications take up to six months, but some may take longer depending on background checks. You may be asked to provide additional documents, attend an interview, or clarify changes in your circumstances.
Citizenship ceremony
Once approved, you will receive an invitation to attend a citizenship ceremony. During the ceremony:
- You make an Oath of Allegiance or Affirmation.
- You pledge to respect the rights, freedoms, and laws of the UK.
- You receive your Certificate of British Citizenship.
- You may bring up to two guests.
You must attend the ceremony within three months of approval.