Becoming a British citizen is a major life step that gives you the right to live and work in the UK indefinitely, vote in most elections, access public services, and travel on a British passport. The rules are precise and occasionally change, so it’s important to check official guidance before you apply. Below is a practical, up-to-step explanation of who can apply, what documents and tests you’ll need, how to submit your application, typical costs and timings, and common pitfalls to avoid.
To apply for British citizenship by naturalisation you typically need 5 years’ lawful UK residence (3 years if married to a British citizen), to be free of immigration restrictions on the application date, to pass the Life in the UK test and meet language requirements, and to satisfy the Home Office that you are of good character. Gather passport and status documents, pay the application and ceremony fees (recently around £1,700+), submit the application online or by form AN, attend biometrics, and—if approved—attend a citizenship ceremony to receive your certificate. Always check official GOV.UK guidance for the most up-to-date details before applying.
Before applying for British citizenship, it is important to understand how dual citizenship may affect your legal status, rights, and obligations. The UK fully permits dual citizenship, meaning you can become a British citizen without giving up your existing nationality. However, not all countries allow dual nationality, and some may automatically revoke your current citizenship once you acquire another.
Because of this, applicants should thoroughly check their home country’s nationality laws to understand the consequences. In some cases, you may need to formally notify your current country of your intention to obtain British citizenship, apply for permission to retain your original nationality, or prepare for the possibility of losing it.
There are several pathways through which an individual can become a British citizen. The appropriate route depends on your personal circumstances, immigration history, and family background. The main routes include:
This is the most common route for adults who have made the UK their long-term home. You may be eligible to apply for naturalisation if:
Naturalisation requires meeting additional criteria, such as the English language requirement, the Life in the UK test, good character, and residence rules.
This route is often simpler than naturalisation and varies greatly depending on the applicant’s circumstances.
Some individuals automatically acquire British citizenship by descent if they were born outside the UK to a parent who is a British citizen. In most cases, this applies to children whose parent was a British citizen “otherwise than by descent” at the time of their birth.
To qualify for British citizenship, applicants must meet strict residency rules.
Before applying, you must hold a form of permanent immigration status:
Applicants must demonstrate sufficient knowledge of English (or Welsh or Scottish Gaelic). This can be done by:
All applicants must pass the Life in the UK Test, a multiple-choice exam covering British history, culture, values, and traditions.
Applicants must meet the Home Office’s good character standard. This includes:
Applying for British citizenship involves several structured steps, each designed to verify your eligibility and ensure you meet the legal requirements. Below is a detailed breakdown of the full process:
Before beginning your application, you must collect all necessary documents to prove your identity, immigration status, and residence history. These commonly include:
Applications for British citizenship are completed online through the official UK Government portal. The online form requires you to:
This stage must be completed carefully, as incorrect or incomplete information can lead to delays or refusal.
Citizenship application fees must be paid online at the time of submission.
Fees typically include:
The cost of applying may change periodically, so applicants should always check the latest fees on the UK Government website before proceeding. These fees are generally non-refundable, even if the application is rejected.
Most applicants must pass the Life in the UK Test, which assesses knowledge of:
If your application is approved, the final step is attending a citizenship ceremony, which is a legal requirement for adults.
At the ceremony, you will:
You may be eligible to apply if you have lived in the UK for at least five years (or three years if married to a British citizen) and hold Indefinite Leave to Remain (ILR) or Settled Status. You must also meet requirements relating to good character, residency, English language ability, and the Life in the UK test.
Yes. All adult applicants must pass the Life in the UK Test, which assesses your knowledge of British history, traditions, values, and laws. It is a mandatory requirement unless you qualify for an exemption due to age or medical condition.
Not usually. You must hold ILR or Settled Status for at least 12 months before applying—unless you are married to a British citizen, in which case you can apply as soon as you receive ILR or Settled Status, provided you meet the three-year residency requirement.
Processing times vary, but most applications take several months. Delays can occur if the Home Office needs more information, if documents are missing, or during periods of high demand. It’s important to submit a complete and accurate application to avoid additional delays.
Yes, the UK permits dual citizenship, meaning you can hold British citizenship alongside another nationality. However, some countries do not allow dual nationality, so it is important to check your home country’s rules before applying to avoid losing your current citizenship or facing legal/tax implications.