Understanding the Roles: Commissioner of Oaths vs. Notary Public in Toronto
Understanding the Basics
In Toronto, legal documentation often requires the expertise of a Commissioner of Oaths or a Notary Public. Despite some similarities, each role has distinct responsibilities and powers. Understanding these differences is crucial for anyone needing their services.
A Commissioner of Oaths is an individual authorized to administer oaths and affirmations in legal documents. They ensure that the person signing a document does so under oath, confirming the truthfulness of the content. This role is vital for affidavits, statutory declarations, and other legal forms requiring sworn statements.

The Role of a Commissioner of Oaths
Commissioners of Oaths are typically appointed by provincial governments and serve to witness and authenticate the swearing of oaths. While they play a crucial role in legal processes, their powers are limited to specific tasks and do not extend beyond administering oaths and affirmations.
In Toronto, Commissioners of Oaths can be found in various professions, including legal offices, banks, and government institutions. They do not provide legal advice or draft documents; their primary function is to witness signatures and confirm the identity of signatories.
When to Use a Commissioner of Oaths
If you need to validate a document with a sworn statement or affidavit, a Commissioner of Oaths is the professional to approach. Some examples include:
- Affidavits for court submissions
- Statutory declarations for name changes or travel consent letters
- Sworn statements for insurance claims

The Role of a Notary Public
A Notary Public holds broader powers than a Commissioner of Oaths. Notaries can notarize documents, and certify true copies. They act as an impartial witness to the signing of documents, ensuring that all parties understand the nature and implications of the documents involved.
Notaries are also involved in international transactions, where their certification is required to authenticate documents for use abroad. This makes them essential for legal and business matters that transcend local jurisdictions.
When to Use a Notary Public
You might need the services of a Notary Public in several situations:
- Authenticating documents for international use
- Real estate transactions
- Creating powers of attorney
- Certifying true copies of important documents like passports or diplomas

Key Differences and Choosing the Right Service
While both Commissioners of Oaths and Notaries Public play significant roles in the legal landscape, understanding their differences ensures you select the right service for your needs. The choice between them largely depends on the type of document you need to process and whether it requires international validation.
If your document requires only a sworn statement within Ontario, a Commissioner of Oaths will suffice. However, if you need international certification or additional legal services such as document drafting, a Notary Public is the appropriate choice.
Ultimately, knowing when to approach each professional can save time and ensure your legal documentation is handled correctly. Whether you're dealing with local legal matters or international transactions, understanding these roles helps streamline the process and ensures compliance with all legal requirements.