Insights · Notarization & Apostille

Notary or Commissioner? Using the Wrong One Can Cost You

People use the words interchangeably. Ontario law does not. The difference decides whether your document will be accepted, especially abroad.

Published 24 October 2026 · Last verified 24 October 2026 against Ontario and federal authentication rules · By the Yu Sheng Notarial Services Team

Two different authorities

In Ontario, a commissioner for taking affidavits can administer oaths and take affidavits, statutory declarations and affirmations. A notary public has those same powers and more: a notary can also witness or certify the signing of a document and certify a true copy of a document. A commissioner cannot do those notarial acts.

Why the difference matters

If a receiving institution, a court, a bank, a foreign government, requires a notarized document or a certified true copy, only a notary can provide it. Just as important for cross-border use: a document that was merely commissioned, rather than notarized, generally cannot be apostilled for use in another country.

This is one of the most common reasons documents are rejected or delayed: the wrong official was used for the task. For anything going overseas, the choice between a commissioner and a notary is not a technicality, it is the difference between a document that works and one that is sent back.

Get the right one the first time

As a law firm with a lawyer who is also a notary public, we can confirm what your document actually needs and provide the correct service, so it is accepted where it has to be.

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法律资讯 · 公证与认证

公证人还是监誓专员?用错了,代价很大

人们把这两个词混用,安省法律却不这样。这个区别,决定了你的文件会不会被接受,尤其是在境外。

2026年10月24日发布 · 2026年10月24日对照安省与联邦认证规则核实 · 作者:禹晟公证认证团队

两种不同的职权

在安省,“监誓专员(commissioner for taking affidavits)”可以主持宣誓,办理誓章、法定声明与确认。“公证人(notary public)”拥有同样的权力,还更进一步:公证人还可以见证或核证文件的签署,并核证文件的“真实副本(true copy)”。监誓专员不能办理这些公证行为。

为什么这个区别很重要

如果受理机构,法院、银行、外国政府,要求的是经公证的文件或核证真实副本,那么只有公证人能提供。对跨境使用而言同样关键:一份仅经“监誓”而非“公证”的文件,一般不能被办理海牙认证(apostille)以供他国使用。

这正是文件被退回或延误最常见的原因之一:办这件事时找错了职权之人。对任何要送往境外的文件来说,“监誓专员”与“公证人”之间的选择不是枝节,而是“文件能用”与“被打回”之间的区别。

一次就找对

作为一家“律师同时是公证人”的律师事务所,我们可以确认你的文件究竟需要什么、并提供正确的服务,让它在该被接受的地方被接受。

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