Updated on 01 February 2026
A naturalisation or registration certificate is one of the most important documents issued after becoming a British citizen. It is your official legal proof of British nationality and is required when applying for a British passport or proving your citizenship status.
If your certificate has been lost, damaged, or stolen, you must apply for a replacement. This post provides an overview on how to replace or correct a British naturalisation certificate, including fees, application steps, and important considerations.
What Is a Naturalisation or Registration Certificate?
A naturalisation or registration certificate is the official document issued by the Home Office confirming that you have become a British citizen under the British Nationality Act 1981.
You will receive this certificate after attending your citizenship ceremony.
Your certificate contains important personal and legal information, including:
- Your full name and any previous names
- Date and place of birth
- Certificate number
- Home Office reference number
- Date of naturalisation or registration
- Nationality law and legal provision under which citizenship was granted
This document is essential evidence of your British citizenship and must be kept safe.
If you apply for a British passport, you must send your original naturalisation or registration certificate as proof of citizenship.
Naturalisation certificates must not be laminated or altered. Damaged or defaced certificates may not be accepted for passport applications.
What Should I Do If My Naturalisation Certificate Is Lost, Damaged, or Stolen?
If your certificate is lost, damaged, or stolen, you must apply through Form NC for a replacement through UK Visas and Immigration (UKVI). If your certificate was stolen, you must also report the theft to the police before applying for a replacement. The process depends on when you became a British citizen.
Can I Replace My Certificate If I Became a British Citizen After 30 September 1986?
Yes. If you became a British citizen after 30 September 1986, you can apply for a replacement certificate using Form NC (Application for Duplicate Citizenship Certificate).
How to apply
If you live in the UK, you must apply online through the Home Office duplicate certificate application system.
If you live in:
- Channel Islands
- Isle of Man
- British Overseas Territories
- Outside the UK
You must apply by post or in person through the appropriate governor’s office.
Postal applications are sent to:
Department 102, UKVI, The Capital, New Hall Place, Liverpool, L3 9PP.
How Much Does It Cost to Replace a Naturalisation Certificate?
As of 2026, the Home Office fee to replace a lost or damaged naturalisation or registration certificate is £428.
This fee applies to:
- Lost certificates
- Damaged certificates
- Stolen certificates
- Requests for duplicate certificates
Processing times vary, but online applications are usually faster than postal applications.
Can I Replace My Certificate If I Became a British Citizen Before October 1986?
No. UKVI cannot issue replacement certificates for citizenship granted before October 1986.
This is because records from before this date are held by the National Archives, not UKVI.
Instead, you must search the National Archives and request a certified copy.
You can request copies of:
- Registration certificates issued between 1 January 1949 and 30 September 1986
- Naturalisation certificates issued between 1 January 1844 and 30 September 1986
Fees and processing times
- Initial archive search: Free
- Certified copy: approximately £27.15 plus postage
- Dispatch time:
- Certified copies: up to 16 working days
- Standard copies: up to 24 working days
You will normally receive search results within 10 working days.
What Information Do I Need to Apply for a Replacement Certificate?
You will need to provide:
- Full name and any previous names
- Date of birth
- Address details
- Date of naturalisation or registration
- Home Office reference number (if available)
- Certificate number (if known)
If you have changed address since becoming a British citizen, you must update your address with UKVI before submitting your application. Failure to do so may delay processing.
How Do I Correct an Error on My Naturalisation Certificate?
If your certificate contains incorrect information, you must apply for a correction using Form RR (Application for Correction of Registration or Naturalisation Certificate).
You must send:
- Completed Form RR
- Your original certificate
- Supporting evidence showing the correct information
Applications should be sent to:
Department 201, UKVI, The Capital, New Hall Place, Liverpool, L3 9PP.
The correction fee is currently £428, if the error was your fault.
UKVI will notify you if a fee applies.
Why Is My Naturalisation Certificate Important?
Your naturalisation certificate is required for:
- Applying for your first British passport
- Proving your British citizenship
- Applying for certain government services
- Confirming your right of abode in the UK
Without this certificate, you cannot normally apply for a British passport.
Can I Apply for a British Passport Without a Naturalisation Certificate?
No. The Home Office requires your original naturalisation or registration certificate when applying for your first British passport.
If your certificate is lost or damaged, you must replace it before applying for a passport.
How Whytecroft Ford Can Help
Replacing or correcting a British naturalisation certificate can be confusing, particularly where records are old, incomplete, or errors exist.
At Whytecroft Ford, we assist clients with:
- Replacement naturalisation certificate applications
- Correction of certificate errors
- British passport applications after naturalisation
- British citizenship and nationality matters
We ensure your application is correctly prepared and submitted to avoid delays or refusal.
Call us on 0208 757 5751 or use our Contact Form to receive expert advice from our immigration team.
