Dismissal for Delay in Ontario: How Courts Clear Stale Civil Claims

A lawsuit that sits untouched for months, or years, doesn't just fade away quietly — Ontario's civil courts have specific mechanisms for clearing stale claims off the books. One of them can end your case entirely, without a judge ever ruling on whether you were right.

Whether you're a plaintiff worried about losing your claim to inactivity, or a defendant wondering whether a dormant lawsuit against you might finally go away, understanding dismissal for delay in Ontario helps you know what's actually at stake.

Two Different Paths to a Delay Dismissal

• Administrative dismissal. Ontario's civil case management system is designed to flag actions that haven't been moved toward trial within an expected timeframe, and can result in the case being dismissed after notice to the parties, without either side needing to bring a specific motion.
• Motion for dismissal for delay. A defendant can also bring their own motion, arguing the plaintiff hasn't pursued the claim with reasonable diligence and asking a judge to dismiss it directly.

Both routes can end a case without ever deciding who was actually right — which is exactly why plaintiffs need to keep a claim moving.

What Courts Look At

There's no single factor that decides a delay motion. Courts generally weigh things like:

• How long the delay has actually lasted
• Whether there's a reasonable explanation for it
• Whether the delay has caused real prejudice to the defendant — for example, faded memories, lost documents, or witnesses who are no longer available
• Whether the plaintiff has shown an ongoing intention to actually pursue the claim, rather than letting it sit indefinitely

The specific benchmarks and timeframes that apply to case management and delay motions are periodically updated and vary by the type of case and court location — never assume a number you've heard elsewhere is still current.

The Consequences of Losing a Claim to Delay

A dismissal for delay isn't a ruling on the merits — the court hasn't decided the underlying dispute one way or the other. But in practice, it can be just as final. By the time a claim has sat inactive long enough to be dismissed for delay, the applicable limitation period has often already expired, which can make starting a fresh claim on the same facts impossible even though nothing was ever decided against you.

Can a Dismissed Claim Be Brought Back?

• Motion to set aside or restore. A plaintiff can ask the court to reverse the dismissal, and courts generally weigh similar factors to other set-aside motions: a reasonable explanation for the inactivity, evidence the claim has genuine merit, how promptly the plaintiff moved once they learned of the dismissal, and whether restoring it would unfairly prejudice the defendant.
• Starting over. Filing a brand-new claim on the same facts is only realistic if the limitation period hasn't already run — which, after the kind of delay that leads to dismissal, is often no longer the case.

How Plaintiffs Can Avoid a Delay Dismissal

• [ ] Track case management deadlines and respond promptly to any court notice about inactivity
• [ ] Take a concrete step — serving documents, scheduling a conference, moving toward examinations — if the file has gone quiet
• [ ] Keep your lawyer updated on your ongoing intention to pursue the claim
• [ ] Don't assume "the other side isn't pushing either" is a safe reason to let a file sit

What Defendants Should Consider

A defendant frustrated by a slow-moving claim shouldn't assume a delay motion is automatic or quick. Courts weigh genuine prejudice against the plaintiff's explanation, and a claim that's merely proceeding slowly — rather than sitting truly abandoned — may not meet the bar.

Frequently asked questions