In most cases, you have 2 years from the date of the accident to file a personal injury claim in Ontario. However, exceptions and notice requirements may apply depending on the circumstances.
In Ontario, strict time limits apply to personal injury claims. In most cases, you have two years from the date of the accident to start a lawsuit. However, certain situations, such as claims involving municipalities or government entities, may require much earlier notice. Missing these deadlines can permanently bar your right to compensation, which is why speaking with a personal injury lawyer as soon as possible is critical.
What Is the Standard Limitation Period in Ontario?
In most personal injury cases in Ontario, the Limitations Act provides a two-year window from the date you discovered your injury to file a lawsuit. This applies to many types of accidents, including:
- Car accidents
- Slip and fall incidents
- Dog bites
- General negligence claims
Failing to start your claim within this period usually means losing your legal right to pursue compensation.
What Happens If You Miss the Deadline?
If you miss the limitation period, you may lose your legal right to pursue compensation, even if your claim is otherwise valid.
Important Exception: Claims Against Municipalities
If your injury involves a municipality (for example, a slip and fall on city property), you may be required to provide written notice within 10 days of the incident.
However:
- exceptions sometimes apply
- courts may extend deadlines in limited circumstances
- legal advice is strongly recommended
Does the Deadline Differ for Car Accident Claims?
Yes, motor vehicle accidents in Ontario can involve multiple deadlines, including:
- Accident Benefits application timelines
- Tort lawsuit limitation period
- Notice requirements in certain cases
Because these timelines can overlap, many accident victims unintentionally miss important steps.
Taking the right steps early can impact your claim, which is why understanding what to do after a car accident in Ontario is important.
When Should You Speak With a Lawyer?
Ideally, you should speak with a personal injury lawyer:
- as soon as possible after the accident
- before speaking extensively with insurers
- well before any limitation deadline approaches
Early legal guidance helps protect evidence and preserves your right to full compensation.
The value of your case may also depend on how your claim is handled, and understanding how much compensation you can get after an accident can provide useful context.
Frequently Asked Questions
In most cases, you have 2 years from the date of the accident to start a personal injury lawsuit in Ontario. This time limit is set by the Limitations Act, 2002.
However, some claims may require earlier notice. For example, claims involving municipalities often require written notice within 10 days of the incident. Because limitation periods can vary depending on the circumstances, it is important to seek legal advice as soon as possible.
If you miss the applicable limitation period, your claim may be permanently barred. This means you could lose your right to pursue compensation through the courts.
Courts strictly enforce limitation deadlines in most cases. Once the time limit expires, the defendant can request that the case be dismissed, even if your injuries are serious.
Early legal consultation can help ensure that important deadlines are not missed.
Yes. Certain exceptions may apply depending on the circumstances.
For example:
If the injured person is a minor, the limitation period may not begin until they turn 18.
If the injured person is mentally incapable of managing their legal affairs, the clock may be paused.
In some cases, the limitation period may begin when the injury was reasonably discovered, not necessarily on the exact date of the accident.
Because these exceptions are fact-specific and legally complex, professional legal advice is strongly recommended.




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