Applying for British citizenship through naturalisation is a major milestone. Once you’ve submitted your application, one of the first questions that comes to mind is – how long will it take? The answer is not always straightforward. Processing times can vary depending on the Home Office’s workload, the completeness of your application and even your personal circumstances.
Knowing the average timelines and the factors that can cause delays can help you plan ahead – whether that means arranging travel, renewing your passport or preparing for a citizenship ceremony.
How long does naturalisation take?
The Home Office aims to process naturalisation applications within six months from the date you provide your biometric information. In many straightforward cases, decisions are issued within three to six months, but applicants are advised to allow up to twelve months to account for possible delays.
It’s important to note that the official processing period does not begin on the day you submit the online form. The six-month clock starts after your biometric appointment, when your identity and documents are confirmed.
Related: J.T – Success Story of Permanent Residence & British Citizenship
Stages of the process
To understand where time is spent, it helps to break the process into stages:
- Application submission – You complete Form AN online and pay the relevant fee.
- Biometric appointment – Usually booked within a few weeks of applying.
- Home Office checks – Covering residence requirements, “good character,” identity and security.
- Decision issued – Either an approval letter or a request for more information.
- Citizenship ceremony invitation – Typically arrives within a few weeks of approval.
- Ceremony attendance – Usually scheduled within one to three months, depending on local council availability.
From start to finish, the entire journey often takes between six and nine months, though longer waits are possible.
What can delay processing
Although many naturalisation applications are decided within six months, several factors can extend the timeline. Incomplete or inconsistent documentation is one of the most common issues. If there are gaps in your travel history, missing proof of residence or unclear employment records, the Home Office may request additional evidence. Each request adds extra time.
Complex immigration histories can also slow things down. Previous visa refusals, criminal convictions, overstays or time spent living abroad may trigger more detailed checks. Similarly, applicants who have changed names or lived in multiple countries often face longer security and background reviews.
Another common cause is demand. When there is a surge in applications – such as after fee changes or immigration policy updates – the Home Office can develop a backlog, meaning some applicants wait closer to a year.
What to do if your application is delayed
If your application goes beyond six months without a decision, you can contact the Home Office to request an update. While this does not guarantee a faster outcome, it can sometimes highlight issues that need attention. Keeping records of your application reference number, biometric appointment confirmation and correspondence will help if you need to chase progress.
It is also worth remembering that delays do not necessarily mean your application is at risk. Often, it simply reflects workload pressures or the need for additional checks. Patience is important, but professional legal advice may help if your case is particularly complex or if you need reassurance about your eligibility.
Need help applying for naturalisation?
The naturalisation process is rarely instant, but knowing what to expect can make it less stressful. Most applicants receive a decision within three to six months of providing biometrics, though the Home Office advises allowing up to twelve months in case of delays.
Planning around this timeframe – whether for travel, employment or family matters – can help you avoid disruption. If your case is taking longer than expected, do not panic. Instead, keep records, follow up appropriately and seek legal advice if needed.
Osbourne Pinner’s UK immigration solicitors can guide you through the application, monitor progress and help you achieve British citizenship with confidence. Start with a free 30-minute consultation via video call or in person at our offices in Harrow, Canary Wharf, Piccadilly Circus or Manchester.
To get the ball rolling, call 0203 983 5080, email [email protected] or book your consultation using the form below.
