What it is:
A certificate of naturalisation is a document issued by the UK government to an individual who gains British citizenship through naturalisation or registration. 
Frequently used for:
You can use your apostille certificate of naturalisation for the following:
- Applying for a British passport
- Staying and working in the UK without immigration restrictions
- Registering your children’s British passports
- Marrying overseas
Original or copy:
Only a certified copy of the original is required for the apostille service. You cannot issue an apostille on your original certificate of naturalisation, as altering the document in any way whatsoever will invalidate it.
As mentioned above, you can only use a solicitor certified copy as the original certificate cannot be modified in any way.
If you lose your naturalisation certificate or believe it has been stolen, please inform the Home Office as soon as possible. You should also notify the police about it and apply for a new one. 
How much does it cost?
A standard FCDO apostille for a certificate of naturalisation starts from £79.
However, our apostille services will vary depending on the services you select, such as:
- Same-day service
- The cost of notary and solicitor certification.
- Whether you will require embassy attestation.
- The delivery mode you have chosen, e.g., international shipping to certain countries, can be more costly.
These extra services will lead to additional costs. Also, the price will go up depending on how many other documents you would wish to have apostilled.
How to order:
A straightforward apostille for a UK naturalisation certificate can be ordered via the online order form. You can choose additional options on the order page. If you are unsure, please call our office and speak to one of our experts.