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№ 22 Wills & Estates

Time Limits to Sue an Estate or Estate Trustee in Ontario

Understand the deadlines that can apply to estate claims in Ontario, including the six-month support rule, the two-year basic period and objections.

Wills & Estates5 min readTSLBy the Treadstone Law Team · OntarioUpdated November 6, 2026
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Key takeaways
  • A dependant's support application must be made within six months after the grant of probate or administration, though the court can allow later claims against undistributed property.
  • The basic limitation period is two years from the day the claim was discovered.
  • A married spouse who wants to elect an equalization payment under the Family Law Act must file the election within six months of the death.

Estate disputes are often emotional, and it is easy to wait and hope things settle. But some estate claims have short deadlines, and missing one can end the claim. If you think you may have a claim against an estate or an estate trustee, the time to find out which deadline applies is early.

There is no single estate deadline. Different kinds of claims follow different rules. This article walks through the main ones so you can spot which may apply to you. It is general information; the dates depend on the facts and a lawyer should confirm yours.

There is no one deadline for every estate claim

Some deadlines come from the Succession Law Reform Act, some from the Family Law Act, some from the Rules of Civil Procedure, and some from the general Limitations Act, 2002. Which one applies depends on what you are claiming and who you are claiming against.

Type of claimTime rule
Dependant's support from the estateWithin six months after the grant of probate or administration
Married spouse's equalization election under the Family Law ActFiled within six months of the death
General claim, such as a civil claimBasic limitation period of two years from the day the claim was discovered
Notice of objection to a certificateExpires three years after it is filed

The six-month rule for support claims

The court can order support from an estate where the deceased did not make adequate provision for a dependant. A dependant is a spouse, parent, child or sibling the deceased was supporting. A common-law spouse does not inherit under the intestacy rules, but a support claim by a dependant is a separate matter, and dependants can include a common-law partner the deceased was supporting.

The application must be made within six months after the grant of probate or administration. The court may allow an application at any time as to any part of the estate not yet distributed. Do not rely on that exception. Once assets have been paid out, there may be less to claim against.

For these support claims only, non-estate assets such as joint accounts, property held in joint tenancy, life insurance owned by the deceased and amounts payable under a beneficiary designation are treated as part of the estate.

Challenging a will or claiming estate property

For many civil claims the basic limitation period is two years from the day the claim was discovered. Ontario courts have held a will challenge brought more than two years after the death, with no discoverability issue, to be statute-barred. How discoverability applies to will challenges can be unsettled and depends on the facts, so do not assume you have two years from any date.

Before the court will order proof of a will, a person with a financial interest must meet a minimal evidentiary threshold: some evidence which, if accepted, would call the will's validity into question. Gathering that evidence takes time, which is another reason to move early.

When a parent makes a gratuitous transfer to an adult child, including into a joint account, it is presumed to be held on a resulting trust for the parent's estate. That presumption can be rebutted by evidence, on a balance of probabilities, that the parent intended a gift at the time of the transfer. For a transfer to a minor child, the starting point is instead the presumption of advancement, which is a gift. How a time limit applies to that kind of claim depends on the facts and is worth confirming with a lawyer.

Filing an objection before a certificate is issued

Anyone who appears to have a financial interest in the estate may file a notice of objection (Form 75.1) at any time before a certificate of appointment of estate trustee is issued. It must state the nature of the interest and of the objection.

That 20-day window is short. If you receive a notice to objector, get advice quickly.

Why creditors and trustees care about timing

A personal representative who has given the required notices to creditors may distribute the estate and is not liable to a creditor whose claim they had no notice of at the time of distribution. A creditor keeps the right to follow estate assets into the hands of the people who received them.

In practice, once an estate is distributed, claims become harder to pursue. That is why the earlier you raise a claim, the better your position generally is.

What to do next

Frequently asked questions

How long do I have to ask for support from an estate?

A dependant's application must be made within six months after the grant of probate or administration. The court may allow a later application as to any part of the estate not yet distributed.

Is there a two-year limit to challenge a will?

The basic limitation period is two years from the day the claim was discovered. Courts have treated a will challenge brought more than two years after death, with no discoverability issue, as statute-barred. How discoverability applies depends on the facts.

What is the deadline for a spouse to elect under the Family Law Act?

A married spouse may elect an equalization payment instead of taking under the will or the Succession Law Reform Act. The election must be filed within six months of the death.

Can a common-law partner claim against an estate?

A common-law spouse does not inherit under the intestacy rules. A dependant, which can include a common-law partner the deceased was supporting, may apply for support within six months after the grant of probate or administration.

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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