Commissioner of Oaths

Book an appointment

Appointments with the Commissioner of Oaths are available weekly on Tuesdays, Wednesdays, and Thursdays.  All appointments are in person only at City Hall, 1 Carden Street, Guelph.

Book an appointment

Prepare for your appointment

  • Person(s) signing the document must be present at the appointment and show current, government-issued photo identification that matches their name on the document being commissioned
  • Documents must be filled out prior to the appointment and be unsigned
  • The Commissioner of Oaths has the sole discretion to commission a document or not


  • The fee for the City’s Commissioner of Oaths service is $39.55. (A different fee may apply depending on the quantity or type of documents being commissioned.)

What is a Commissioner of Oaths?

The City’s Commissioner of Oaths is a person designated to take oaths or declarations when you sign an affidavit or statutory declaration on a document. The City of Guelph does not have a Notary Public. Examples of documents the Commissioner of Oaths may sign are listed below.

For more information about Commissioner of Oaths and Notary Public services, visit the Province of Ontario’s website.

Documents the City can commission

The Commissioner of Oaths will sign affidavit or statutory declaration documents including but not limited to the following:

  • Sworn statement for family gift of a used motor vehicle
  • Foreign pension document (or proof of life)
  • Application to change a name
  • Declaration for a change of sex designation
  • Declaration of common law or single status
  • Statement of conscience or religious belief
  • Consent to travel with child (travel letter)
  • Application for authorization and statutory declaration for the purposes of entry into Canada
  • Statutory declaration of lost identification
  • Declaration of unregistered vehicle
  • Construction completion form
  • Declaration of a true copy
  • Court affidavits
  • Ontario Land Transfer Tax Refund Affidavit
  • Statutory Declaration in Lieu of a Guarantor

Documents the City may not commission

The City’s Commissioner of Oaths only completes documents that indicate the need for Commissioner of Oaths’ signature. Due to their complex or legal nature of some documents, the Commissioner of Oaths will not sign, or witness documents related to:

  • Wills, living wills, codicils to wills, or estate settlement
  • Powers of attorney
  • Divorce, separation, or marriage agreements
  • Custody
  • Real estate matters (include sale, purchase, and mortgages)
  • Debt
  • Documents that are not in English or that do not have English descriptors
  • Certified true copies

Documents requiring the signature of a Notary Public

Need help?

If you have questions about documents that you need commissioned or the Commissioner of Oaths service, please contact us.


519-822-1260 extension 2117

[email protected]