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Certified True Copies & Legal Document Notarization in Ontario
A practical guide to certified true copies, signature notarization, legal document witnessing, commissioning, authentication and what a notary certification does—and does not—confirm.
A certified true copy is often requested when an organization needs a copy of an important document but does not want the original. The notary’s role is specific: compare the copy to the original shown and certify that the copy appears to be a true copy.
Prepared by Tatyana Trusz, Trusz Law • Updated July 2026 • 12 min read
QUICK ANSWER
What is a certified true copy?
A certified true copy is a copy that a notary public has compared against an original document and certified as appearing to be a true copy of that original. Ontario’s Notaries Act gives notaries power to certify and attest true copies of documents.
A certified true copy does not automatically prove that the original document is authentic, legally valid, current or acceptable to every receiving institution. It confirms the comparison between the copy and the original shown to the notary.
IN THIS GUIDE
RELATED NOTARY SERVICES
NEED A CERTIFIED COPY?
Bring the original, not just the copy.
The notary usually needs to compare the copy against the original document.
THE SHORT ANSWER
A certified true copy confirms the copy—not the whole legal story
A certified true copy may be useful where an organization needs a reliable copy of an important document.
Common reasons include:
- immigration or citizenship applications;
- school or professional licensing requirements;
- employment onboarding;
- banking and financial requests;
- corporate or business files;
- estate and probate matters;
- out-of-province requirements;
- documents for use outside Canada; and
- administrative or government applications.
The receiving institution may require exact wording, a notarial certificate, the notary’s seal or additional authentication. The instructions should be checked before the copy is certified.
KEY TAKEAWAYS
At a glance
- Ontario notaries can certify and attest true copies of documents.
- A certified copy normally requires the original document for comparison.
- Certified-copy notarization is different from witnessing a signature.
- Commissioning is different again: it involves an oath, affirmation or declaration.
- A notary stamp does not automatically make a document legally enforceable.
- Foreign-use documents may need authentication or apostille after notarization.
- The receiving institution’s instructions should be reviewed before the appointment.
THE DISTINCTIONS
Do you need a certified copy, notarized signature or commissioned affidavit?
| Service | What it confirms |
|---|---|
| Certified true copy | The copy appears to match the original document shown to the notary. |
| Signature notarization | The signature, signing process or identity of the signer is verified in the required way. |
| Commissioning | An oath, affirmation or solemn declaration is administered. |
| Authentication or apostille | A competent authority confirms the genuineness of a public official’s signature on a document for use outside Canada. |
The words are often used casually, but the receiving organization may require one specific service.
COMMON DOCUMENTS
What documents commonly need certified true copies?
Common examples include:
- passports and travel documents;
- driver’s licences and identity cards;
- permanent resident cards;
- birth, marriage, divorce or death certificates;
- diplomas, transcripts and educational records;
- professional licences or certificates;
- corporate records;
- powers of attorney;
- court or estate documents;
- property documents;
- immigration supporting documents; and
- foreign-use documents.
Some documents are better obtained as official originals or official certified copies directly from the issuing authority. The receiving institution’s requirement should guide the approach.
THE CERTIFIED-COPY PROCESS
How does a certified true copy appointment work?
The process usually involves:
- reviewing the receiving institution’s instructions;
- checking the original document;
- making or reviewing the copy;
- comparing the copy against the original;
- adding the notarial certificate or required wording;
- signing, dating and stamping or sealing where appropriate; and
- returning the original and certified copy to the client.
Where the document has multiple pages, stamps, seals, double-sided content or security features, the copy should be prepared carefully so the certification is meaningful and acceptable.
“A certified true copy confirms the copy against the original shown. It does not turn a problematic original into a legally effective document.”
— Trusz Law
LEGAL DOCUMENT NOTARIZATION
Can legal documents be notarized?
Legal documents can often be notarized, witnessed or commissioned, depending on what the document requires.
Examples may include:
- powers of attorney;
- corporate declarations;
- real-estate-related documents;
- estate documents;
- financial or banking forms;
- consent letters;
- statutory declarations;
- affidavits;
- guarantee-related documents; and
- documents for use in another jurisdiction.
But notarization is not the same as legal advice. If the document changes rights, imposes financial responsibility, transfers property or affects a court or immigration matter, legal review may be needed before signing.
DOCUMENTS FOR USE OUTSIDE CANADA
What if the certified copy is for another country?
Documents for use outside Canada may need more than notarization.
Ontario’s Official Documents Services authenticates eligible Ontario public documents and issues certificates of authentication or apostilles. Global Affairs Canada also explains that authentication or apostille may be required before a Canadian document can be used abroad, and that some documents must be notarized before authentication.
Before the appointment, confirm:
- destination country;
- whether apostille or authentication is required;
- whether the document must be an original or certified copy;
- who must notarize it;
- whether a translation is required;
- whether a lawyer/notary seal is required; and
- whether the receiving authority requires specific wording.
REMOTE AND DIGITAL QUESTIONS
Can certified true copies be done remotely?
Some notary and commissioning steps can be handled remotely where the legal requirements and receiving institution allow it. Certified true copies are more difficult because the notary usually needs to compare the copy with the original document.
Remote service may not be appropriate where:
- the original document must be physically inspected;
- security features need to be reviewed;
- the receiving institution requires wet-ink notarial certification;
- the document will be used outside Canada;
- the receiving authority does not accept remote or electronic processes; or
- the document requires an original seal or physical certificate.
In-person certification is often the safer route for high-value, official or foreign-use certified copies.
WHAT TO BRING
How should you prepare for a certified-copy appointment?
Bring:
- the original document;
- the copy to be certified, if already made;
- valid government-issued photo identification;
- instructions from the receiving institution;
- required wording or forms;
- translation materials, where applicable;
- destination-country instructions for foreign-use documents; and
- all pages, attachments and schedules that need certification.
Do not alter, crop or separate pages before confirming what the receiving institution requires.
COMMON MISTAKES
Problems that delay certified-copy and document-notarization requests
Bringing only the copy.
The notary usually needs the original to certify a true copy.
Assuming certified copy means the original is valid.
The certification confirms the copy, not every legal issue in the original.
Using the wrong wording.
Some institutions require specific certification language.
Ignoring foreign-use requirements.
Apostille or authentication may be needed after notarization.
Signing a document before the appointment.
If signature witnessing is required, signing in advance can create problems.
Confusing notarization with commissioning.
An oath or declaration requires a different process from certified-copy comparison.
Failing to bring all pages.
A partial copy may be rejected if the institution expects a complete document.
Expecting legal advice from a basic notary appointment.
Legal review is separate where the document affects rights or obligations.
HOW TRUSZ LAW CAN HELP
Certify the right copy, notarize the right signature and flag when more than a stamp is needed.
Trusz Law assists with certified true copies, legal document notarization, signature witnessing, affidavits, statutory declarations and related document-verification services in Ontario.
Depending on the document, that may include comparing copies to originals, reviewing receiving-institution instructions, notarizing signatures, commissioning statements, preparing notarial wording and identifying where authentication, apostille or legal advice may be needed.
The goal is practical: prepare the document in the form the receiving organization actually requires.
FREQUENTLY ASKED QUESTIONS
Certified-copy and notarization questions people often ask
What is a certified true copy?
It is a copy that a notary certifies as appearing to be a true copy of the original document shown to the notary.
Do I need the original document?
Usually yes. The notary normally needs the original to compare the copy against it.
Can a notary certify a passport copy?
A notary can certify that a copy appears to match the original passport shown, subject to the receiving institution’s requirements.
Does a certified copy prove the original is genuine?
Not necessarily. It confirms that the copy matches the original shown; it does not prove every legal or factual issue about the original.
What is the difference between notarizing and commissioning?
Notarizing can include certifying copies or verifying signatures. Commissioning involves administering an oath, affirmation or declaration.
Can legal documents be notarized?
Often yes, but notarization does not replace legal advice where the document affects rights, obligations, property or court proceedings.
Can certified true copies be done online?
Sometimes remote processes may be possible, but certified true copies often require physical comparison with the original. The receiving institution’s rules matter.
What documents commonly need certified copies?
Passports, ID, status documents, diplomas, transcripts, corporate records, powers of attorney, estate documents and immigration documents commonly require certified copies.
Do documents for another country need apostille?
Some foreign-use documents require authentication or apostille after notarization. Requirements depend on the destination country and receiving authority.
Should I sign before the appointment?
Not if the notary must witness the signature. Bring the document unsigned unless instructed otherwise.
Can a notary certify a translated document?
A notary may certify a copy, but translation accuracy is separate. A certified translator or translator affidavit may be required.
What should I bring to the appointment?
Bring the original, the copy, valid photo ID and any instructions or wording from the organization requesting the certified copy or notarized document.
OFFICIAL RESOURCES
Further reading
ABOUT THIS RESOURCE
Prepared by Tatyana Trusz, Trusz Law. This resource is for general information only and is not legal advice. Certified-copy and notarization requirements depend on the document, receiving institution, jurisdiction, use, wording and current law. Last reviewed July 2026.
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NEED A CERTIFIED TRUE COPY?
Bring the original and the receiving institution’s instructions.
Confirm whether you need a certified copy, signature notarization, commissioning or apostille before the appointment.
