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№ 22 Wills & Estates

Named Executor Has Dementia: What Happens to the Estate in Ontario?

If the executor named in the will has lost capacity, see who can apply to administer the estate in Ontario, what a bond involves and when the PGT steps in.

Wills & Estates5 min readTSLBy the Treadstone Law Team · OntarioUpdated October 28, 2026
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Key takeaways
  • If a named trustee or alternate declines or cannot act, beneficiaries may nominate another person.
  • The Office of the Public Guardian and Trustee may apply to act as estate trustee of last resort if no eligible person can administer the estate.
  • An applicant who is not the named trustee generally needs to post a bond, usually double the estate value unless a judge orders otherwise.
  • Estate Administration Tax applies in the usual way, and the estate pays it.

A will names an executor, but years later that person has dementia or can no longer manage their own affairs. When the person who made the will dies, the family is left asking who can now deal with the bank, the house and the debts.

This article explains, in general terms, how another person can be put in charge of an estate in Ontario, who can apply, and what the court process involves. The right route depends on the will, who is still able to act, and who the beneficiaries are, so talk to a lawyer before you file anything.

What it means when the named executor cannot act

Probate is usually needed if the deceased owned real property or held assets at a financial institution that requires it. Who can act in place of an incapable executor depends on the will and the facts, so it is worth confirming with a lawyer.

Ontario's guidance recognizes this situation. 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 (OPGT) may apply to be appointed estate trustee of last resort, although other conditions also apply.

Who can step in

SituationWhat may happen
The will names an alternate who is willing and ableHow the alternate takes over depends on the will and the facts, so it is worth confirming with a lawyer.
The named trustee and any alternate decline or cannot actBeneficiaries may nominate another person.
No eligible person can administer the estateThe OPGT may apply to be estate trustee of last resort, subject to other conditions.
There is no valid willThe spouse or common-law partner has first right to apply, then a close adult relative; the court may choose the most appropriate person.

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

The probate application when someone else steps in

The new applicant uses the same court process as any other. Probate is applied for in the Superior Court of Justice. A Small Estate Certificate is used for estates valued at up to $150,000; otherwise a Certificate of Appointment of Estate Trustee is needed. The application is filed where the deceased lived.

Rule 74.04 lists the required forms for each situation. How an incapable executor is dealt with in the paperwork depends on the facts, so it is worth confirming with a lawyer.

Bonds, notice and cost

A bond is required if there is no will, if the applicant is not the named trustee, or if the applicant does not live in Ontario, another Canadian province or territory, or a Commonwealth country. The surety can be an Ontario-licensed surety insurer or personal sureties, two for estates over $100,000 and one for $100,000 or less, and the bond is generally double the estate value unless a judge orders otherwise.

The applicant must also send a copy of the signed application to each estate beneficiary before filing. If the incapable executor is also a beneficiary, 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 none, service is on both the Public Guardian and Trustee and the individual.

Estate Administration Tax is not a court fee. For applications on or after January 1, 2020, there is no tax on an estate of $50,000 or less, and above that it is $15 per $1,000 (or part thereof) of the estate value. The estate pays it, not the trustee personally. Ontario says applications are typically processed within 15 business days, longer if documents are missing or a judge must decide an issue.

What to do next

How any person who manages the incapable executor's affairs fits into the process depends on the situation, so it is worth confirming with a lawyer.

Frequently asked questions

Can a family member just take over as executor?

Not without legal authority. Probate is usually needed if the deceased owned real property or held assets at a financial institution that requires it, and a bond is required if the applicant is not the named trustee. If a named trustee or alternate cannot act, beneficiaries may nominate another person.

What if nobody is able to act?

If a named executor has died or become incapable and no eligible person can administer the estate, the OPGT may apply to be estate trustee of last resort, subject to other conditions.

Does the bond cost a lot?

A bond is generally double the estate value unless a judge orders otherwise, and the surety can be a licensed surety insurer or personal sureties. The price of a surety insurer's bond is set by the insurer, so ask a lawyer or broker for current terms.

What if there is no will at all?

The spouse or common-law partner has first right to apply, then a close adult relative such as a child, parent, grandchild, sibling, nephew or niece, and the court may choose the most appropriate person. A bond is also required when there is no will.

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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