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№ 22 Wills & Estates

Incapable Beneficiary and Probate: Notice to the Public Guardian and Trustee

See who must receive probate notice for a beneficiary who lacks capacity in Ontario, how to serve the Public Guardian and Trustee, and how it affects timing.

Wills & Estates4 min readTSLBy the Treadstone Law Team · OntarioUpdated October 28, 2026
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Key takeaways
  • For a beneficiary who is incapable under the Substitute Decisions Act, service is made through their fiduciary with authority to act in the matter.
  • If there is no such fiduciary, service is on both the Public Guardian and Trustee and the individual.
  • The Public Guardian and Trustee can be served by email, in person or by mail.
  • Notice must go out before filing, so locating the right person early helps avoid delay.

One of the people named in the will or entitled on an intestacy may not be able to manage their own affairs because of a lack of capacity. As executor, you still need to give that person proper notice of the probate application, and the usual step of mailing them a copy may not be enough.

This article explains who receives notice on behalf of an incapable beneficiary, how the Public Guardian and Trustee can be served, and how this can affect your timeline. A lawyer can confirm how the rules apply to your estate, especially where capacity is disputed.

Why notice works differently

Before filing, the applicant must send a copy of the signed application to each estate beneficiary, meaning everyone entitled to a share. For minors or incapable adults, the Office of the Children's Lawyer and the Public Guardian and Trustee may also need to be served.

The reason is practical. A person who cannot understand the application cannot respond to it, object to it or protect their own interest. Service through someone with legal authority keeps the process fair.

Who is served for the incapable person

Under O. Reg. 231/07 (Service of Documents), a person who is incapable under the Substitute Decisions Act is served through their fiduciary with authority to act in the matter. If there is no such fiduciary, service is on both the Public Guardian and Trustee and the individual.

SituationWho is served
Incapable person has a fiduciary with authority to act in the matterThe fiduciary
Incapable person has no such fiduciaryThe Public Guardian and Trustee and the individual

Who counts as a fiduciary with the right authority depends on the documents in place, such as a guardianship order or power of attorney. Ask the family for copies and have a lawyer confirm whether they cover this kind of matter.

How to serve the Public Guardian and Trustee

Court documents can be served on the Public Guardian and Trustee by email at PGT-Legal-Documents@ontario.ca, in person, or by mail at 595 Bay Street, Suite 800, Toronto, Ontario M5G 2M6.

Keep proof of how and when you served. The application package includes an affidavit of service (Form 74B) or a lawyer's certificate of service (Form 74B.1).

What this does to timing

Service happens before filing, so any delay in identifying the right person delays the whole application. Once filed, applications are typically processed within 15 business days, and longer if documents are missing or a judge must decide an issue.

For a small estate valued at $150,000 or less, a copy of the signed application must go to everyone entitled to a share at least 30 days before filing, and Form 74.1B must confirm that. That waiting period matters if an incapable beneficiary's representative takes time to find.

When the Public Guardian and Trustee steps in as trustee

This is a different role. If a named executor has died or become incapable and no eligible person can administer the estate, the Office of the Public Guardian and Trustee may apply to be appointed estate trustee of last resort, and other conditions also apply. If a named trustee or alternate declines or cannot act, beneficiaries may nominate another person.

When the OPGT is estate trustee, its fees follow a regulation under the Public Guardian and Trustee Act, and professional services such as tax filings, legal work or real estate maintenance are paid from the estate as expenses.

What to do next

Frequently asked questions

Can I just mail the application to the incapable beneficiary?

Not on its own. A person incapable under the Substitute Decisions Act is served through their fiduciary with authority to act in the matter, or, if there is none, through both the Public Guardian and Trustee and the individual.

How do I deliver documents to the Public Guardian and Trustee?

By email at PGT-Legal-Documents@ontario.ca, in person, or by mail at 595 Bay Street, Suite 800, Toronto, Ontario M5G 2M6.

Will this slow down probate?

It can if it takes time to identify the right person to serve. Service must happen before filing, and applications are typically processed within 15 business days, longer if documents are missing or a judge must decide an issue.

What if the executor named in the will has become incapable?

If no eligible person can administer the estate, the Public Guardian and Trustee may apply to be appointed estate trustee of last resort, subject to other conditions. Beneficiaries may also nominate another person if a named trustee or alternate declines or cannot act.

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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