Commissioner of Oaths Toronto & GTA

Commissioner of OathsRaised hand for oath and documentCommissioner of OathsToronto & the GTA“I solemnly affirm…”N

A commissioner for taking affidavits (commonly called a “commissioner of oaths”) is a person authorized under the Commissioners for Taking Affidavits Act, RSO 1990, c C.17 to administer oaths or solemn declarations on affidavits and statutory declarations. Notaries public in Ontario can also commission oaths.

Available Notaries Public

Frequently Asked Questions

What’s the difference between a notary and a commissioner of oaths?

All Ontario notaries are commissioners, but not all commissioners are notaries. Notaries can also certify copies, certify signatures, and notarize documents for international use.

Do I need a notary or a commissioner?

If you only need an oath on a Canadian affidavit, a commissioner is enough. If your document is going outside Ontario, or you need certified copies, you need a notary.

General information only. This article describes how notarial and commissioning practice works in Ontario as of 2026. It is not legal advice. Statutes and regulations change. For advice on a specific situation, consult a lawyer.

Featured Notaries Public


Thornhill Notary Public

Yonge & Clark

Benzaquen Law Chambers
7398 Yonge Street
Suite 29D
Thornhill, Ontario L4J 8J2
Canada

Close to Public Transit, Free Parking, Open Late, Open Weekends.

Toronto Notary Public

Located at Cityplace District

Amna Husain
10 Capreol Crt
Toronto, Ontario M5V 4B3
Canada
Phone: 4372464599

Close to Public Transit, Free Parking, Open Daytime, Open Evenings, Open Weekends, Street Parking, Virtual Notarizations.

Vaughan Notary Public

HWY 400 & Steeles Avenue West

Varinder Gaur
3800 Steeles Ave W
Suite 310
Vaughan, Ontario L4L 4G9
Canada

Close to Public Transit, Close to Subway, Free Parking, Open Daytime, Open Weekends.