Naturalisation and registration as a British citizen
Naturalisation and registration fees change from 1 August 2026
From 1 August 2026, naturalisation and registration fees will change in line with the UK.
The full list of the changes for each application is set out below:
- Naturalisation: increasing from £1754.20 to £1858.20
- Registration (Children): decreasing from £1233.20 to £1019.20
New easier British citizenship route for Irish citizens launched
The British Nationality (Irish Citizens) Act 2024 came into force on 22 July 2025, providing a simplified process for Irish people living in the UK and Islands to apply for British citizenship.
As of 24 September 2025 applications can be made via the Isle of Man Nationality Service.
Irish citizens already have the right to live and work in Britain under the Common Travel Area arrangement, regardless of British citizenship.
Our Vision
To protect our borders and maximise revenue collection leading to a safer and more prosperous Island community.
Our Values
Professionalism, Accountability, Teamwork, Honesty, Integrity and Respect.
Our values are crucial because they define who we are as a division and shape how we serve the Island community.
Check if you’re already a British citizen
There are many ways that an individual can claim British citizenship automatically. These are set out in the British Nationality Act 1981. Some of the factors that go in to determining automatic citizenship depend on:
- Where you were born
- When you were born
- Your parents' circumstances
Citizenship cannot always be acquired by residence only, and so it is important to check if you need to apply for naturalisation/registration first.
You can check to see if you already qualify as a British citizen by visiting the Home Office website.
Naturalisation
For those aged 18 years and over and who have been granted Indefinite Leave to Enter/Remain and wish to become a British Citizen.
Go to the Naturalisation page for the application form, guidance and process.
Current Fee: £1754.20
Registration (Children)
For those aged 17 years and younger who have either been granted Indefinite Leave to Enter/ Remain or have a right to Register.
Go to the Registration (Children) page for the application form, guidance and process.
Current Fee: £1233.20 or £626.20 (under provisions for Irish citizens)
Registration (Adults)
For those aged 18 years and over who have a right to Register due to unfair legislation at the time of their birth.
Go to the Registration (Adults) page for the application forms, guidance and process.
Current Fee: £149.20 or £872.20 (under provisions for Irish citizens)
Naturalisation and registration as a British citizen
The British Government is responsible for the laws covering British citizenship through the British Nationality Act 1981 (an Act of Parliament of the United Kingdom) which extends to the Isle of Man.
Arrangements have been made for the functions of the Secretary of State under the Act to be exercised in the Isle of Man by the Lieutenant Governor in relation to cases concerning British citizens and British citizenship (including naturalisation). The Treasury provides processing services to support the Lieutenant Governor in the exercise of those functions.
Important information
Applicants should not be reliant on having a British passport within a set time frame and therefore should not allow the validity on their foreign passport to run down to such a position that they cannot continue to use it for travel. Applying for a British passport is a separate process, and you will not be able to submit your application until after you have attended a citizenship ceremony.
The Nationality Service do not accept any responsibility for travel booked by an applicant in anticipation of having a British passport.
The information provided on our website is not intended to be comprehensive nor is it a complete statement of immigration and nationality law or policy.
Applicants should not be reliant on having a British passport within a set time frame and therefore should not allow the validity on their foreign passport to run down to such a position that they cannot continue to use it for travel.
Applying for a British passport is a separate process. You will not be able to submit your application until after you have attended a citizenship ceremony.
