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Commissioner for Oaths in the UK

When a document is intended for use within the United Kingdom, it often requires certification by a Commissioner for Oaths. If the document is being sent or relied upon outside the UK, then it will usually require notarisation instead.

The key difference is simple:

  • Commissioner for Oaths certification – the document is signed and stamped.
  • Notarisation – the document is signed, stamped, and also bears the traditional red notarial seal.

In both cases, the document will be signed personally by me, but in different capacities.


Can my solicitor or accountant certify instead?

Yes. If your document states that it may be signed or certified by a solicitor or accountant, that usually means it is intended for use in the UK only. Solicitors and some accountants can act as Commissioners of Oaths for this purpose.

A notary public can also certify UK documents in exactly the same way. The only technical distinction is:

  • A solicitor/accountant is a Commissioner of Oaths.
  • A notary is a Commissioner for Oaths.

For your document, that difference makes no practical impact. The certification will be accepted in the same way.


Which should you choose?

My advice is always to check with the organisation or authority receiving your document before proceeding. Confirm whether they require:

  • A solicitor/accountant certification, or
  • A notarisation by a notary public.

This small step can save you time, money, and unnecessary re-certification later.


Why choose iNotary Public for Commissioner for Oaths?

  • Experienced Notary Public & Commissioner for Oaths in the UK.
  • Trusted to certify documents for both domestic and international use.
  • Clear advice so you only pay for the level of certification you genuinely need.

For expert help with your documents, contact iNotary Public today.