By the time someone applies for naturalisation, they may already have spent years living in the UK, renewing visas, paying immigration fees and eventually securing Indefinite Leave to Remain. There is also a significant cost attached to the citizenship application itself.
In 2026, the fee for an adult applying to naturalise as a British citizen is £1,839, including the £130 citizenship ceremony fee. A recent House of Commons Library analysis puts that figure into perspective by looking at how naturalisation fees have changed over the past 50 years.
The difference is striking. In 1975, naturalisation cost £40. Fees rose steadily over the following decades, with some of the sharpest increases coming from the early 2000s onwards.
Once inflation is taken into account, though, the picture becomes more complicated. The parliamentary data suggests that the real cost of naturalisation has been relatively stable over the past decade, despite the much higher headline figure.
For applicants, however, the practical question is much simpler: how much should you actually set aside for British citizenship, and how early should you start preparing?
How much does British citizenship cost in 2026?
The current fee for an adult naturalisation application is £1,839. That includes the application itself and the £130 citizenship ceremony fee. There is currently no separate charge for biometric enrolment.
Different parts of the fee are treated differently when it comes to refunds. If an application is refused or withdrawn, the Home Office will not usually refund the processing fee. The ceremony fee may be returned, as no ceremony will take place.
This is one reason it is worth checking eligibility carefully before applying, particularly if there are any concerns about residence, time spent outside the UK or the good character requirement. It is also worth remembering that £1,839 is not the full cost of becoming a British citizen.
The House of Commons Library notes that its historical comparison does not include other expenses, such as the Life in the UK Test or an English language test where required. It also leaves out the much larger sums many applicants will already have paid along the way for visas, extensions and permanent residence applications. So the naturalisation fee is really the cost of the final step. For most people, it comes at the end of an immigration process that has already involved several years of applications and fees.
How has the UK naturalisation fee changed?
The historical figures make the scale of the change much easier to see. In 1975, the naturalisation fee was £40. By 1983, the standard fee under section 6(1) of the British Nationality Act had risen to £200, although people married to British citizens paid considerably less at the time.
In 2000, naturalisation cost £150. By 2010, the fee had increased to as much as £700, depending on when in the year the application was made. The standard fee reached £925 in 2015 and £1,330 in 2019. Today, the total cost is £1,839.
Of course, comparing £40 in 1975 with £1,839 today does not tell the whole story, which is why the House of Commons Library has also adjusted its 50-year dataset for inflation. Even on that basis, though, the long-term trend is clear: becoming a British citizen is considerably more expensive than it was a few decades ago.
The picture over the past ten years is a little different. In real terms, the Library notes that naturalisation fees have been relatively stable during that period. That matters because most of the increase reflects a much longer-term shift in how immigration fees are set. The system has gradually moved away from charging primarily to cover the administrative cost of processing applications.
Why is the naturalisation fee much higher than the Home Office processing cost?
One of the most striking figures in the new parliamentary briefing is the gap between what applicants pay and what the Home Office estimates the service actually costs. The naturalisation fee is £1,839, while the estimated Home Office “unit cost” is £324. That difference is not simply the result of citizenship applications being particularly expensive to process. It reflects how immigration and nationality fees are deliberately set.
Under the Immigration Act 2014, the government can consider more than the administrative cost of processing an application when deciding what to charge. It can also take into account the benefits and rights a successful applicant will receive, as well as the wider cost of running the UK’s immigration and border system. Revenue raised above the cost of processing applications helps fund other parts of that system.
Citizenship is not unusual in this respect. Over the past two decades, applicants and employers have increasingly contributed to the cost of the immigration system through visa fees, the Immigration Health Surcharge and employer charges.
For anyone planning to settle in Britain long term, it therefore makes sense to think about immigration costs as part of the whole journey. They do not begin and end with the application currently in front of you.
When can you apply for British citizenship?
Naturalisation is primarily available to adults who already have permanent residence in the UK, usually Indefinite Leave to Remain (ILR) or another qualifying permanent status.
For most applicants, the standard route involves living in the UK for at least five years and normally holding ILR for at least 12 months before applying for citizenship. Applicants must also meet other requirements, including the English language requirement where applicable, the Life in the UK Test and the good character requirement.
The position is different for someone married to a British citizen. They generally need to demonstrate three years of UK residence rather than five and may be able to apply for naturalisation as soon as they obtain ILR, provided the remaining requirements are met. Naturalisation is therefore not automatic once permanent residence has been granted. The timing of the application still needs to be checked carefully.
Not sure when you will become eligible for British citizenship? We can review your current status and immigration history and help you understand the earliest realistic application date.
Why citizenship planning should start before the application
It is tempting to think of British citizenship as something to deal with only once ILR is secured. In reality, some of the issues that can affect a naturalisation application arise much earlier.
Residence history is a good example. The Home Office looks at whether an applicant meets the relevant residence requirements, including where they were at particular points during the qualifying period. On the standard five-year route, GOV.UK specifically warns that being outside the UK exactly five years before the application is received can cause an eligibility issue unless discretion applies.
A person’s wider immigration history and the good character requirement may also become relevant. For that reason, it can be sensible to review citizenship eligibility while preparing for ILR, rather than waiting until the first day someone is technically able to apply for naturalisation.
There is also a wider policy question. The House of Commons Library notes that the basic naturalisation rules have not changed significantly in recent years. However, proposed reforms to settlement could change how quickly future migrants reach the stage where citizenship becomes an option. Naturalisation may be the final application in the process, but decisions made years earlier can matter just as much.
If you are already planning for ILR, this can also be a good time to check your future citizenship position. Our team can review your residence history and flag any issues that may matter later.
What applicants should budget for
The current headline figure is £1,839 for an adult naturalisation application, but someone planning to apply for British citizenship should consider several separate costs.
These can include the citizenship application fee, the Life in the UK Test, an approved English language qualification where one is required, and professional advice or document support if the circumstances are more complex. And, of course, these costs come after any visa, extension and ILR fees paid during the preceding years.
The parliamentary briefing makes this distinction particularly clear: its £1,839 figure represents the naturalisation process itself and does not attempt to calculate the full financial cost of progressing through the UK immigration system before reaching citizenship. For families, each person’s position needs to be considered separately. Children do not necessarily apply through the same naturalisation process as adults and may instead qualify for registration as British citizens. The current standard fee for a child registration application is £1,000, subject to the specific route and circumstances.
British citizenship as part of a long-term immigration strategy
The £1,839 naturalisation fee is a substantial cost, especially when set against the Home Office’s estimated processing cost of £324. For most applicants, though, the fee is only one part of the decision.
British citizenship provides a permanent status that is no longer tied to maintaining ILR. It also comes with the rights of citizenship and the ability to apply for a British passport. People who naturalise as British citizens have the same citizenship rights as people who are British by birth.
The UK also allows dual nationality, although applicants should always check the rules in their other country of citizenship before applying. For that reason, citizenship is better viewed as part of a longer immigration journey rather than a standalone application at the very end.
If British citizenship is your long-term goal, the more useful question is often not simply, “When can I apply?” It is whether your residence history, current status and future plans are already putting you in the right position well before that date arrives.
Planning to apply for British citizenship?
Goldman Solutions supports clients with long-term UK immigration planning, including ILR and British citizenship applications.
If you are approaching settlement, already hold ILR or would like to understand when you may become eligible for naturalisation, we can review your immigration history, identify potential issues before submission and help you plan the next stage.
FAQ
How much is the British citizenship application fee in 2026?
The current fee for an adult applying for naturalisation is £1,839, including the £130 citizenship ceremony fee.
Does the £1,839 naturalisation fee include the Life in the UK Test?
No. The parliamentary cost comparison does not include the Life in the UK Test or an English language test where one is required.
Can I apply for British citizenship immediately after getting ILR?
Applicants normally need to hold ILR for 12 months before applying. Different rules apply if you are married to a British citizen, in which case you may be able to apply as soon as you have ILR if the other requirements are met.
Why is the British citizenship fee higher than the Home Office processing cost?
The estimated cost of processing a naturalisation application is £324. However, the government is allowed to charge more than this and use the additional revenue to help fund the wider immigration and border system.
