What Makes a Translation “Certified” in the UK?
In the UK, there is no single statutory licence that turns a translator into a nationally “certified translator”. Instead, a translation is commonly described as certified when the translator or translation company provides a written statement confirming the translation is true and accurate and identifies who is responsible for it.
GOV.UK guidance on certifying translations says the translator should confirm in writing that the translation is a “true and accurate translation of the original document”, give the date of translation, and provide their full name and contact details. The organisation receiving the document may ask for additional information, so its own instructions should always be checked.
Core Information in a UK Certified Translation
- A complete translation: the translated text should accurately reflect the source document without deliberate omissions or additions.
- An accuracy statement: the certification should state that the translation is a true and accurate translation of the original.
- Date: the date of the translation or certification should be shown.
- Translator or company identity: the person or organisation responsible for the translation should be identifiable.
- Contact details: the receiving organisation should be able to contact the translator or translation company if verification is needed.
Some organisations may request a signature, credentials, membership details, a stamp, letterhead, or a particular declaration. Those are additional receiving-body requirements rather than one universal UK rule for every certified translation.
Does the Translator Have to Be a CIOL or ITI Member?
Not as a universal rule. The Chartered Institute of Linguists (CIOL) states that language work in the UK is not regulated and that the UK does not have a national system of sworn or certified translators accredited by one particular body. Professional membership can provide useful evidence of a translator’s credentials, but the receiving organisation decides what it will accept.
CIOL, the Institute of Translation and Interpreting (ITI), and the Association of Translation Companies maintain professional directories or membership schemes. If a receiving body specifically asks for a member of a professional organisation, that requirement should be followed. For more detail about professional bodies, see our guides to CIOL and certified translation and ITI and translation in the UK.
Is a Stamp Required?
A stamp is not part of the minimum information listed in the general GOV.UK guidance for certifying a translation. However, a particular university, court, solicitor, overseas authority or other organisation may ask for a stamp, seal or specific presentation. Check the receiving body’s instructions before assuming that a stamp is either required or sufficient.
Our separate guide explains certified translation stamps in the UK in more detail.
Certified Translation vs Notarisation and Apostille
Certification, notarisation and legalisation are different processes. A certified translation normally contains a statement from the translator or translation company about the translation. Notarisation involves a notary and may be requested for a particular legal or overseas use. An apostille is a separate legalisation process used to authenticate certain public documents or notarised acts for use abroad.
Do not add notarisation or an apostille unless the receiving organisation or relevant procedure requires it. See our guide to legalised vs certified translations for the distinction.
How to Arrange a Certified Translation
- Check the receiving body’s instructions. Confirm whether it asks for certification, a professional-body member, notarisation, a hard copy or any specific wording.
- Send a clear, complete source document. Cropped or illegible pages can create avoidable uncertainty.
- Explain the intended use. Tell the translation provider which organisation, application or procedure the translation is for.
- Confirm the required format. Digital and hard-copy requirements vary between organisations.
- Review names, dates and figures. Check the completed translation against the source before submission.
If you need a document translated for official use, our certified translation service can review the document and intended use before confirming the appropriate format. You can also send the document for review.
Frequently Asked Questions
What does GOV.UK say a certified translation should include?
General GOV.UK guidance says the translator should confirm that the translation is true and accurate, give the date of translation, and provide their full name and contact details.
Is there a government register of certified translators in the UK?
No single national system of sworn or certified translators applies across the UK. Professional bodies such as CIOL and ITI maintain directories or membership schemes, but the receiving organisation’s requirements remain important.
Does every official document need a certified translation?
No. The requirement depends on the organisation and procedure. Check what has actually been requested before ordering certification or additional formalities.
Sources and Review
Last reviewed: 17 September 2026. Primary guidance checked: GOV.UK — Certifying a document and CIOL — Guidance on Certified Translations. Receiving organisations can impose additional requirements, so their current instructions should be checked for the specific use.
