Many good cases are lost simply because a deadline was missed. Here are the Ontario deadlines that come up most often.

Legal deadlines in Ontario are strict, and many can't be extended. Use this list as a starting point, and always check the deadline for your exact situation.

Deadlines can depend on when you discovered the problem, how you were served, and special rules. If in doubt, get advice right away.
| Matter | Usual deadline |
|---|---|
| Most lawsuits (contracts, injuries, debts) | 2 years from when you knew, or should have known, about the claim |
| Ultimate limit for most claims | 15 years from the events |
| Small Claims Court defence | 20 days after being served with the claim |
| LTB tenant application (T2, T6) | Within 1 year of the problem |
| LTB request to review an order | Usually 30 days after the order |
| Human Rights Tribunal application | 1 year from the last incident |
| Employment standards claim (unpaid wages) | Usually 2 years |
| Wrongful dismissal lawsuit | 2 years |
| Provincial offence ticket | 15 days to choose an option |
| WSIB claim (worker) | 6 months from the injury |
| Judicial review in Ontario | Usually 30 days after the decision |
| Libel in a newspaper or broadcast | Notice within 6 weeks of learning of it |
Have a hearing coming up? NEO represents clients at Ontario's tribunals and can help you prepare. Call 647-200-3526 or toll-free 888-519-2435, email info@neolegalservices.com, or book a free consultation.
Read next: Need More Time? Asking for an Adjournment at an Ontario Tribunal
General Ontario legal information, not legal advice for your matter, and reading it does not create a retainer. Sources checked 15 October 2026: check the current law, forms and dates before you act.
Photos from Pexels: Writing a date in a desk calendar · A planner with coloured tabs and pens.
This article is general information for people in Ontario, not legal advice. Rules, forms and deadlines change, and every situation is different. Check the current rule or speak to a licensed legal professional before you act.
Not sure where you stand? A licensed paralegal can look at your documents and tell you your options.
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