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Probate Application Documents Checklist for Ontario Estate Trustees

See the forms, original will, affidavits and supporting documents an Ontario probate application needs, plus who must be served and how to file it.

Wills & Estates5 min readTSLBy the Treadstone Law Team · OntarioUpdated November 6, 2026
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Key takeaways
  • A probate application is built around a Form 74A application, a draft certificate, the original will and the affidavits that support it.
  • The original will, any codicils and bonds must be filed on paper even though the application itself may be emailed.
  • Every beneficiary must be served before you file, and minors and incapable adults have special service rules.

Applying for probate in Ontario means putting together a package of forms and supporting documents for the Superior Court of Justice. Missing one piece is a common reason an application comes back, so it helps to gather everything before you start.

This checklist walks through what the court generally expects, who has to be notified, and how filing works. Your own file may need more or less, so a lawyer can confirm what applies to your estate.

The core forms and documents

Ontario guidance and Rule 74.04 list the documents that make up a typical application for a certificate of appointment of estate trustee with a will.

ItemWhat it is for
Form 74AThe application itself
Form 74B or 74B.1Affidavit of service, or a lawyer's certificate of service, showing beneficiaries were notified
Form 74CThe draft certificate
Original will and codicilsThe documents you are asking the court to prove
Form 74D, 74E or 74FAffidavit of execution, or the version for an altered or marked will, or a holograph will, as needed
Proof of deathEvidence that the person has died
Form 74GRenunciations and consents
Form 74L or 74MBond, where one is required

The list above is the one set out in the Ontario guidance. Court forms are updated from time to time, so use only the current versions from the Ontario court forms website.

Proving the will was properly signed

For a typical will, the Form 74D affidavit of execution is how the court is shown that the will was signed correctly. A formally executed will is signed at its end by the testator, or by someone else in the testator's presence and at the testator's direction. The testator makes or acknowledges the signature in front of two or more witnesses present at the same time, and those witnesses sign in the testator's presence.

There are exceptions. A will can still be valid if the position of the signature makes it apparent on the face of the will that the testator intended it to give effect to the will. The Superior Court of Justice may also order valid a document that was not properly executed if it is satisfied the document sets out the deceased's testamentary intentions. This applies to deaths on or after January 1, 2022, and does not validate electronic wills.

Renunciations and consents

A person named as executor who does not want the job renounces on Form 74G (Part A), and a consent to someone else's appointment uses Form 74G (Part B). Rule 74.04(1) requires renunciations from people entitled to act who are not joining the application.

Where there is no will, the same rule requires consents on Form 74G from beneficiaries who together hold a majority interest in the value of the estate's assets at the date of death.

Serving beneficiaries, signing and filing

Rule 74.04(2) requires the application to be served on every beneficiary, including charities and contingent beneficiaries. Ontario guidance says this is done before filing, by email or by mail or courier to each person's last known contact details.

The application and affidavits must be signed before a Commissioner for taking affidavits, who must also sign them. File in the county or district where the deceased had a fixed place of abode, or where the property is located if there was no fixed place of abode in Ontario.

The application may be filed with the Superior Court of Justice by email, but original wills, codicils, administration bonds and certified copies must still be filed on paper, and the original will and any codicils are attached as an exhibit to an affidavit. Estate administration tax payments must be made in person or sent by mail or courier to the court office.

After you file

Applications are typically processed within 15 business days. The registrar may ask for more information, and must refer applications that raise issues to a judge. A refused application receives a Registrar's Notice (Form 74O) giving the reason, and missing documents can be supplied when court staff ask for them.

An approved certificate is issued electronically and sent by email unless you asked for a paper one.

What to do next

Frequently asked questions

Can I email my probate application?

Probate applications may be filed with the Superior Court of Justice by email. Original wills, codicils, administration bonds and certified copies must still be filed on paper, by hand, mail or courier.

Who has to be notified before I file?

The application must be served on every beneficiary, including charities and contingent beneficiaries, before filing. For a minor, service goes to the parent or guardian and the Children's Lawyer, and the Office of the Children's Lawyer should also be served if there may be unborn or unascertained beneficiaries. For a mentally incapable adult, service goes to the guardian, the attorney, or the Public Guardian and Trustee, depending on who has authority.

What if the will is handwritten?

A will wholly in the testator's own handwriting and signed can be valid without witnesses. You will need a Form 74F affidavit confirming the handwriting and signature are the deceased's.

How long does the court take to process an application?

Applications are typically processed within 15 business days, though the registrar may ask for more information first.

Sources

Links go to official government, court and regulator pages. The law changes — confirm you are reading the current version.

This article is general information, not legal advice. Reading it does not create a lawyer-client relationship. Ontario laws, tax rates, and government programs change, and how the law applies depends on your specific facts. For advice about your situation, speak with a licensed Ontario lawyer. Treadstone Law is licensed by the Law Society of Ontario — reach us at 1-844-900-1070 or start a file online.

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