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Swearing affidavits

An affidavit is a signed declaration that certain information is true. They are generally used to establish legal rights. Common uses include confirming a person's identity, motor vehicle ownership or common-law partnership status.

A Commissioner for Taking Affidavits is a person authorized to witness your signature and administer your oath or solemn affirmation. They certify that the oath was properly taken — not that the statements in the document are true.

Commissioning services

The Office of the Regional Clerk can commission affidavits and statutory declarations for documents required by Niagara Region. For all other documents, contact your local city or town hall.

  • Hours: Monday to Friday, 8:30 a.m. – 4:30 p.m.
  • Appointment recommended: Call 905-980-6000 ext. 3221

Services are subject to the availability of a Commissioner for Taking Affidavits.

What to bring

  • The completed form filled out, but not yet signed
  • Photo identification, such as a driver's licence, passport or photo health card

Notary services

We don't offer notary services.

If your document must be signed by a Notary Public, contact a local notary or lawyer. Notaries have broader authority than Commissioners as they can certify copies of documents and notarize documents for international use.

Have a question?

Contact the Regional Clerk