- Most civil claims in Ontario, including straightforward debt claims, are governed by the basic limitation period in the Limitations Act, 2002: generally two years from the day the claim…
- The two-year period is the general default, not a universal rule.
- The limitation period is not necessarily frozen once it starts running.
An old debt you had mostly forgotten about resurfaces — years after you last made a payment or heard anything about it — in the form of a lawsuit. One of the first questions worth asking is whether the claim was filed too late. In Ontario, a debt that a creditor waited too long to sue on is often called statute-barred, and raising the limitation period can be one of the strongest defences available in a debt claim.
It is not, however, an automatic or self-executing defence. A statute-barred debt does not disappear on its own, and a court will not raise the argument for you. This guide explains how the limitation clock generally works, how the defence actually gets raised, and where the analysis gets complicated.
The Basic Rule You're Working With
Most civil claims in Ontario, including straightforward debt claims, are governed by the basic limitation period in the Limitations Act, 2002: generally two years from the day the claim was discovered (as of mid-2026 — verify the current rule before relying on it). "Discovered" does not necessarily mean the day the debt became due; it means the day the creditor knew, or reasonably should have known, that it had a claim worth pursuing against a specific person. There is also a further, ultimate outer limit that applies regardless of discovery.
Common Misconception: "It's Always Two Years"
The two-year period is the general default, not a universal rule. Some claim types carry their own, sometimes much shorter, limitation or notice periods set out in other statutes. Before assuming the general period applies, confirm whether the specific type of claim against you might be governed by a different rule.
What Can Reset the Clock
The limitation period is not necessarily frozen once it starts running. Certain acknowledgments of the debt, and in some cases a payment made on account of it, can restart the basic limitation period from the date of the acknowledgment or payment, rather than the original discovery date. Whether a specific message or payment legally qualifies is a technical, fact-specific question — don't assume either way without reviewing the actual circumstances.
How the Defence Actually Gets Raised
A statute-barred argument is not something a court applies automatically. It has to be pleaded — raised affirmatively in your Statement of Defence (Superior Court and Simplified Procedure) or your Defence (Small Claims Court) — and then, if disputed, proven with evidence about when the debt arose and when it was discoverable.
- Identify the date the debt is based on, and the date you believe it became discoverable by the creditor.
- Check for any later event — an acknowledgment, a payment, a settlement discussion — that might have restarted the clock.
- Raise the limitation defence explicitly in your filed defence; don't assume simply not paying is enough.
- Be prepared to support your version of the timeline with records: statements, correspondence, and payment history.
- Get advice early — a limitation argument that looks strong on the surface can unravel on a detail you didn't consider.
Statute-Barred vs. "I Don't Owe It"
| Type of defence | What it argues | What it needs |
|---|---|---|
| Statute-barred | The creditor waited too long to sue, regardless of whether the debt was once valid | Clear dates: when the debt arose, when it was discoverable, and whether anything reset the clock |
| Debt not owed / already paid / wrong person | The underlying debt itself is wrong, inaccurate, or doesn't belong to you | Records showing payment, a dispute of the amount, or proof of mistaken identity |
These are different arguments, and a claim can potentially be attacked on both grounds at once — they are not mutually exclusive.
Practical Checklist Before You File a Defence
- [ ] Gather every document showing when the debt originated and when it was last active
- [ ] Note any payments, partial payments, or written acknowledgments and their exact dates
- [ ] Confirm your response deadline and don't let a limitation argument distract you from filing on time
- [ ] Assume the shorter, more conservative limitation date applies until a lawyer confirms otherwise
- [ ] Raise the limitation defence explicitly — don't rely on the court noticing it for you
Frequently asked questions
If a debt is statute-barred, do I still have to respond to the lawsuit?
Yes. A statute-barred debt is a defence you have to raise, not something that automatically ends the case if you ignore the claim. If you don't respond in time, the creditor can generally still obtain a default judgment against you.
Can a collection agency still contact me about a statute-barred debt?
Being statute-barred generally means the debt can no longer be enforced through the courts, but it does not necessarily mean the underlying obligation has vanished for every purpose, or that collection contact stops automatically. This distinction is worth discussing with a lawyer if it comes up.
What if I'm not sure exactly when the debt became "discoverable"?
That uncertainty is common, and it's exactly the kind of fact-specific question a lawyer can help pin down, since the discoverability date — not necessarily the date you stopped paying — is what actually starts the clock.
Does making any payment at all restart the whole limitation period?
Not automatically, and not necessarily for the full amount. Whether a payment resets the clock, and for how much of the debt, depends on the specific circumstances — don't assume a small payment locks you into a fresh two-year window without checking first.
This is a litigation question
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