A certificate of naturalisation confirms that an individual has become a citizen of a particular country. This is usually after residing there for a specified length of time.

In the UK, foreign residents can apply for citizenship by naturalisation via the Home Office. 

When submitting your British naturalisation certificate to businesses, governments, or legal organisations abroad, you may need to have your certificate notarised. We offer fast and professional legalisation of your documents.


What is a Naturalisation Certificate (UK)?

When you become a citizen of a country, you will receive a naturalisation certificate. This can act as proof of your citizenship. 

You may be eligible to apply for British citizenship if you meet any of the following criteria:

  • You have secured indefinite leave to remain (ILR) after living in the UK for five years. You will need to reside in the UK for at least twelve further months before applying.
  • You were born in the UK.
  • You are married to/in a civil partnership with a British citizen. You will need to live in the UK for three years before applying.
  • You have had ‘settled status’ under the EU Settlement Scheme for at least twelve months.
  • You’re the child of a British citizen or a parent with British overseas territories citizenship.
  • You are stateless.


When Do You Need to Show a Naturalisation Certificate?

You will need your UK naturalisation certificate when making a passport application. You might also need to share it in the following situations:

  • Applying for dual citizenship or a visa
  • Marrying abroad
  • Adopting a child
  • Seeking business/employment opportunities overseas.


Notarising a British Certificate of Naturalisation

A qualified notary public can authenticate and certify your document to guarantee it will be recognised abroad. After verifying the authenticity of the certificate, we will attach a certificate of notarisation and apply an apostille if required. 

Notarisation adds an additional level of credibility to a naturalisation certificate. This ensures it is acceptable for use in various legal and administrative processes.

Notary.co.uk aims to simplify the notarial and legalisation process. If you have questions about your documents, don’t hesitate to get in touch. We will get back to you promptly with a clear breakdown of the services required and costs involved. 


Do You Need an Apostille for a UK Naturalisation Certificate?

You do not need an apostilled certificate of naturalisation to apply for a British passport. In the UK, your original document will be sufficient. Some international entities, however, will request an apostille in addition to notarisation. 

It is advisable to check with the organisation requesting your certificate what form of verification they require. If you need an apostille, our notaries will handle the entire process for you.


Process for Obtaining and Notarising a Certificate of Naturalisation

  1. Apply for citizenship with UK Visas and Immigration by visiting the gov.uk citizenship application page and selecting the relevant circumstantial option. You will need to pay a fee.
  2. Once your application is approved, you will receive the certificate directly from the Home Office. This can take up to six months.
  3. Contact us via the form below. Let us know which organisation has requested your certificate and in which country it is based. We will get back to you to request more details or to send a quote.
  4. Send us your original certificate of naturalisation by secure mail or visit our London Victoria office.
  5. We will produce a certified copy of your original certificate and attach a notarial certificate. We offer same-day service for all notarisation.
  6. If you require an apostille, we will request this from the FCDO and return the document within 3-5 days. (Premium same-day/next-day return available).
  7. Submit your notarised naturalisation certificate with confidence.


Our notaries are experienced in verifying certificates of naturalisation for use across the world. Visit us, give us a call on 020 7630 1777, or get in touch below.

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