SMALL CLAIMS CALCULATORS

Post-Judgment Interest Calculator — Canada

Calculate how much interest has accrued on an unpaid court judgment.

We help ambitious law firms turn a strong six-figure practice into a seven-figure growth engine—and help established seven-figure firms generate more of the qualified cases they want.

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Filing fees and disbursements awarded by the court.
Ontario CJA post-judgment rate ~3–5%. Check your judgment for the rate ordered.
How many months has the judgment been unpaid?
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Disclaimer: Interest rates set by statute and change. Verify current rate with your court. Not legal advice.

Related Calculators

Pre-Judgment Interest · Small Claims Limit · Court Costs Recovery · Demand Letter Amount · Filing Fee Calculator

This estimate is one piece of a larger picture — the judgment enforcement cost calculator shows a closely related piece, while the last-month-rent interest calculator and the pre-judgment interest calculator cover the questions that usually follow.

Frequently Asked Questions

How do I collect a small claims court judgment in Canada?
Options include: garnishment of wages or bank accounts, writ of seizure and sale (seize assets), examination of debtor (require debtor to disclose assets under oath). In Ontario, file a Notice of Examination with the court to examine the debtor.
What is the post-judgment interest rate in Ontario?
The post-judgment interest rate is set by the Courts of Justice Act regulation, updated quarterly. It is tied to the Bank of Canada prime rate minus 1%. Check the current rate at the Ministry of the Attorney General website.
How long can I collect on a small claims judgment?
In Ontario, a judgment is enforceable for 6 years and can be renewed. The 2-year basic limitation period does not apply to enforcement of existing judgments.

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