O'Kelly Solicitors Website

Commissioner for Oaths


Commissioner for Oaths Dublin

We are often approached by clients and potential clients asking whether we can witness various forms and affidavits which require the signature to be witnessed by a Commissioner for Oaths.

What is a Commissioner for Oaths?

In brief, a Commissioner for Oaths is a person who is authorised to verify Affidavits and Declarations (as well as other legal documents). They witness the signature of the Deponent  (the person swearing the Affidavit/Statutory Declaration) and make sure that the document is read and understood by the person signing the document.

The Chief Justice appoints such Commissioners for Oaths once they have gone through the necessary application to the Court. They are usually solicitors, but do not have to be.

Who else can be a Commissioner for Oaths?

In any event, every solicitor within the Sate who holds a a current practising certificate is also entitled to administer oaths (see Section 72 of the Solicitors (Amendment) Act, 1994) and to use the title “Commissioner for Oaths”.

For solicitors, they cannot swear Affidavits/Declarations for matters they are involved in (or have an interest in) and the standard practise is for a solicitor to have an arrangement with another local solicitor regarding the swearing of Affidavits/Declarations.

We at O’Kelly Solicitors can swear Affidavits, Declarations and other legal documents which require the signature of a “Commissioner for Oaths” for anyone in the Dublin as well as the Killiney / Dun Laoghaire /Dalkey area.

Commissioner for Oaths Fees.

The fees charged are set by the Courts service (SI 616 of 2003) and currently stand at €10.00 per signature as well as €2.00 per signature for each exhibit (up to a maximum of €30 for exhibits i.e 15 exhibits).

If you need a Commissioner for Oaths to swear your document, please contact Mark O’Kelly, the principal of the Firm, on 086 788 9753 or contact the office at We are available both inside and out of hours and are happy to help.

Our contact details can be found here.


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