Overview
British Citizenship by Naturalisation is for eligible applicants who want to become a British citizen after completing the required period of lawful residence in the UK and meeting the legal and character requirements. This is one of the most common routes to citizenship for adults.
Who this route is for
You may be eligible to apply for naturalisation if you:
- Have held Indefinite Leave to Remain (ILR), Settled Status, or equivalent status for the required period
- Have completed the qualifying residency period in the UK
- Have complied with UK immigration laws throughout your stay
- Meet the good character requirement
Key requirements your application must meet
A successful application normally shows:
- Lawful residence for the required qualifying period
- Absence limits within the permitted range
- Valid immigration status at the time of application
- Knowledge of Life in the UK (where required)
- Accurate and consistent personal history
Typical supporting documents
Depending on your circumstances, documents may include:
- Current and previous passports
- Evidence of settled status or ILR
- Residence and address history
- Employment or activity history
- Life in the UK Test pass notification (if applicable)
- Referees’ details and declarations
How we support your application
We help you check eligibility, review your residence timeline, confirm absence calculations, and prepare a clear, well-organised citizenship application file.