United Kingdom
The path to British citizenship usually runs through indefinite leave to remain, the Life in the UK test and a naturalisation application. These guides explain each stage and the costs involved.
All figures are taken from GOV.UK and NHS pages, linked at the end of each guide.
Key figures for United Kingdom
| Life in the UK test | 24 questions in 45 minutes, pass with 18 (source) |
|---|---|
| Test booking fee | £50 (source) |
| Personal Allowance | £12,570 a year (2026/27) (source) |
Tools
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UK citizenship absences
450 days in 5 years, 90 in the last year
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UK take-home pay calculator
Salary after Income Tax and National Insurance
Guides
- The route to British citizenship: from indefinite leave to remain (ILR) to naturalisation
The stages of becoming a British citizen: limited leave, then indefinite leave to remain, then naturalisation, with the absence, language and Life in the UK test requirements.
- The Life in the UK test: booking, format and how to prepare
A guide to the Life in the UK test: 24 questions in 45 minutes, 18 correct to pass, booking only through the official site, and what to bring on the day.
- National Insurance numbers in the UK: how they work and why they matter
What a National Insurance number is, when you need it, how contributions are linked to the State Pension, and how to check your record on GOV.UK.