The Difference Between a Notary Public and a Commissioner of Oaths

If you’ve ever needed a document signed, sworn, or certified, you may have been told to see a notary public or a commissioner of oaths. While both play important roles in verifying documents, their authority and responsibilities are very different.

Let’s explore the key differences so you know exactly who to turn to.

 What Is a Notary Public?

A notary public is a state-commissioned official with the authority to:

• Verify a signer’s identity

• Witness the signing of documents

• Administer oaths and affirmations

• Certify copies of documents (in many jurisdictions)

• Prepare notarial certificates with an official seal

Notaries are often used for real estate transactions, powers of attorney, loan documents, affidavits, and international paperwork.

What Is a Commissioner of Oaths?

A commissioner of oaths is an official who can:

• Administer oaths, affirmations, and solemn declarations

• Witness signatures on affidavits and statutory declarations

 Unlike notaries, commissioners of oaths usually cannot certify copies of documents, handle international documents, or perform notarial acts that require a seal.

 Key Differences Between a Notary Public and a Commissioner of Oaths

1. Scope of Authority

   • Notary Public: Broader authority, including notarization for international use.

   • Commissioner of Oaths: Limited mainly to affidavits, declarations, and oaths within a jurisdiction.

2. Use of Seal

   • Notary Public: Uses an official seal or stamp recognized by law.

   • Commissioner of Oaths: Typically does not use a notarial seal.

3. Document Types

   • Notary Public: Real estate, powers of attorney, contracts, financial agreements.

   • Commissioner of Oaths: Sworn affidavits, declarations for court or government use.

4. Recognition

   • Notary Public: Often recognized internationally, especially with an apostille or authentication.

   • Commissioner of Oaths: Recognition is usually domestic only, limited to certain regions or provinces.

 Final Thoughts

While both a notary public and a commissioner of oaths can witness signatures and administer oaths, their authority is not the same.

• If your document is for international use or requires certification with a seal, you’ll need a notary public.

• If your document is a sworn statement or affidavit for local use, a commissioner of oaths may be sufficient.

 At Looking Glass Notary, we help clients understand which service they need—making the notarization process simple, accurate, and stress-free.