There is no single limitation period that applies to every will challenge in Ontario.
The time you have depends on the type of claim being brought. In some cases, the deadline may be as short as six months. In others, it may extend to two years or more, depending on the circumstances.
What is consistent across all claims is this: delay can be fatal. Once a limitation period expires, the ability to bring a claim may be lost entirely.
Why There Is No Single Deadline
Not all will challenges are the same.
Different legal claims arise in estate disputes, and each is governed by its own limitation framework.
Understanding which claim applies is critical. Misidentifying the nature of the claim can result in applying the wrong deadline, which can have serious consequences.
Will Challenges Based on Validity
Where a will is challenged on the basis of validity, such as lack of capacity or undue influence, the analysis is not always straightforward.
In many cases, the general two-year limitation period under the Limitations Act may apply, starting from the point at which the claim was discovered or ought to have been discovered.
However, this is highly fact-specific. The timing of probate, knowledge of the will, and surrounding circumstances can all affect when the limitation period begins to run.
Dependant Support Claims
Dependant support claims are subject to a much stricter timeline.
In Ontario, these claims must generally be commenced within six months from the issuance of the Certificate of Appointment of Estate Trustee.
This is one of the most commonly missed deadlines in estate litigation.
While the court has limited discretion to allow late claims in certain circumstances, that discretion should not be relied upon.
Claims Involving Fraud or Concealment
Where there are allegations of fraud, concealment, or hidden information, the limitation period may be extended.
In these situations, the clock may not begin to run until the relevant facts are discovered or reasonably ought to have been discovered.
These cases are often complex and fact-driven, and early investigation is critical.
When Does the Clock Start?
The starting point for a limitation period depends on the nature of the claim.
It may begin:
• When the will is disclosed
• When probate is granted
• When the claimant becomes aware of the relevant facts
• When the loss or issue reasonably could have been discovered
This is often where disputes arise. Parties may disagree about when knowledge was obtained or when it should have been obtained.
What Happens If You Miss the Deadline
Missing a limitation period can have serious consequences.
In many cases, the claim will be barred entirely, regardless of its merits.
This means that even a strong case may never be heard if it is brought too late.
Courts take limitation periods seriously, and while there are limited exceptions, they are not easily obtained.
Strategic Considerations
Timing in estate litigation is not just about meeting deadlines.
Early action can preserve evidence, prevent the distribution of estate assets, and position a claim more effectively.
Waiting, even for understandable reasons, can limit available remedies and increase risk.
From a practical standpoint, the safest course is to assess potential claims as early as possible and proceed within the applicable limitation period.
A Practical Perspective
Questions about timing often arise when concerns first surface.
At that stage, individuals may still be gathering information or trying to resolve issues informally. While that approach is understandable, it does not stop the clock from running.
Understanding the applicable limitation period is essential.
Where there is uncertainty, obtaining early legal advice can ensure that rights are preserved and that options remain available.