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Ontario limitation period calculator

Pick the type of claim and enter the dates it runs from. Each period is counted from its own date — the basic period from discovery, the ultimate limit from the act or omission, a notice period from the event it names — and the last day to start the proceeding is shown first.

Nothing leaves your browser. The calculation runs on your own device, there is no account to create, and no date you enter is sent to us or stored anywhere.

Default civil claims — most torts and contracts. Two years from discovery of the claim, with a 15-year ultimate cap from the act or omission.

Presumed to be the day of the act or omission unless the contrary is proved (Limitations Act, 2002, s. 5(2)).

Enter a date above to calculate the deadlines.

How the dates are counted

  • Months and years follow the Legislation Act, 2006, s. 89: a period of months ends on the same calendar day or, if that month has no such day, on its last day, and the anniversary of February 29 falls on February 28 except in a leap year.
  • The 2020 emergency suspension follows O. Reg. 73/20 and LAWPRO’s published calculation method, and is applied to limitation periods only — never to notice periods, and not to Construction Act periods, whose suspension ended earlier. The adjusted date is shown beside the unadjusted one, not in place of it.
  • The basic and ultimate periods are from the Limitations Act, 2002, ss. 4 & 15. Every other rule links to its own statute beside the result.

What this calculator does not do

  • Decide when a claim was discovered. That is a question of fact under s. 5 of the Limitations Act, 2002, and s. 5(2) presumes the day of the act or omission unless the contrary is proved.
  • Pause the clock for a claimant who is a minor without a litigation guardian (s. 6) or who lacks capacity (s. 7), or while the parties have agreed to have an independent third party resolve the claim (s. 11).
  • Restart the period after an acknowledgment of liability (s. 13).
  • Extend a deadline that falls on a weekend or holiday. It flags weekends; it does not know which days a given office is open.
  • Cover federal limitation periods, contractual deadlines, or claims outside Ontario.

This is a calculator, not legal advice. It only knows the dates you enter, statutes change, and your firm remains responsible for the deadlines it relies on. When in doubt, file by the earliest date shown.

Track these on every matter

Intaklo records limitation periods against each matter using this same calculation, and lists every deadline coming due in the next 30 days on your dashboard, so none depends on someone remembering to check.

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