Practical guide · updated 27 October 2026

Certified, notarised and legalised: the differences

These terms describe different processes. The correct choice depends on the receiving authority and destination country.

Certified translation

A certified translation comes with a statement, signed by the translator, that it is accurate, with the translator’s name, contact details and the date. It does not mean the document has been notarised or legalised for use abroad.

Notarisation

Notarisation is a separate step. A notary usually confirms who signed a document, or that a signature is genuine. It is not an independent check of the translation. Ask the receiving organisation whether it needs one.

Legalisation or apostille

Legalisation confirms that an official signature or stamp is genuine, so the document can be used in another country. Depending on the country and the type of document, an apostille may be needed. Confirm which process is required before work starts.

Before you send

  • Ask the receiving organisation to name the process it needs, in writing.
  • Say which country the document will be used in, not only where it was issued.
  • Do not ask for notarisation or legalisation unless it is required.
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