Judicature Act

Prince Edward Island Judgment Interest Calculator (2026)

Prejudgment and postjudgment interest under Part 16 of the Judicature Act, at the quarterly rates the Registrar publishes in the Royal Gazette.

Prejudgment Interest (s. 57, Judicature Act)

Version 1.000 – Last updated on September 19, 2026.

What this calculator covers

This works out the interest that builds up on a money judgment before the judgment is made: a debt, a contract dispute, damage to property, and so on.

It does not handle personal injury claims. In a personal injury case, damages for pain and suffering use a different rate, and lost income and money already spent have to be worked out in six-month blocks. Neither is calculated here.

Judicature Act, s. 57(2) and s. 57(3). The Act calls pain and suffering “non-pecuniary loss”.
1
How much did the court order, and when?
Both of these are written on the judgment or order itself. Enter the amount before any interest, and leave out costs, punitive damages and any future loss the court identified, because interest is not payable on any of those. Leave out lost income and money already spent too, for the reason in the box above. Judicature Act, s. 57(4)
Tap the box to pick a date. Use the date the judge decided, which is the date written on the judgment. It still counts even if the judgment was not signed, entered or enforceable that day, and even if it was changed later on appeal. Interest stops on this date. If the order sent something off to a reference, use the date the report was confirmed instead. Judicature Act, s. 56(1)(b)
2
When did the lawsuit start?
This date sets the interest rate. It does not change how long interest runs for. Prince Edward Island publishes a new rate every three months, and the rate for the three-month block your lawsuit started in applies to the whole claim. Use the date the court issued the first document that started the case, which does not have to be a statement of claim: an application or a petition counts too. Judicature Act, s. 56(1)(d). The Act calls this the date “the proceeding was commenced”, and defines “proceeding” broadly at s. 1(o).
Tap the box to pick a date.
3
When did the events behind the claim happen?
This is the day the thing being claimed about actually happened, and interest runs from this day up to the date of the judgment. In a debt or contract case it is usually the day a payment was due and was not made; in a negligence case it is the day the damage happened. If the two sides disagree about the date, run the calculation twice, once with each date, and you will see the range. Judicature Act, s. 57(1). Lawyers call this the date the cause of action arose.
Tap the box to pick a date.

Postjudgment Interest (s. 58, Judicature Act)

Version 1.000 – Last updated on September 19, 2026.

What this calculator covers

This works out the interest that builds up on a judgment after it is made, while it goes unpaid.

It does not handle a judgment payable in instalments, where each missed instalment carries its own interest from the day it was missed. It also does not handle a judgment made outside Prince Edward Island, which carries the interest rate of the place it came from.

Judicature Act, s. 58(2) and s. 58(3)
1
How much is still owed, and when was the judgment made?
Include everything the judgment covers: the main amount, any costs, and any interest awarded for the period before the judgment. Interest runs on all of it, which is the opposite of the prejudgment side, where costs are left out. If costs were assessed without a separate order for them, interest on that part runs from the day the entitlement to those costs arose, so work that part out on its own. Judicature Act, s. 58(1) and s. 58(4)
Tap the box to pick a date. This date does two jobs: interest starts running from it, and it sets the interest rate. Use the date written on the judgment, the same way as on the prejudgment side. Judicature Act, s. 56(1)(c) and s. 56(1)(b)
2
When was the money paid, or when is it expected?
Paid means the money actually arrived, not the day a cheque was put in the post. For the amount owing as things stand today, use today’s date; for a demand letter, use the date you are asking to be paid by.
Tap the box to pick a date.

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About this calculator

Prince Edward Island Judgment Interest Calculator

This free Prince Edward Island judgment interest calculator works out the interest that runs on a PEI judgment, both before and after it is granted. Prejudgment interest runs from the day the claim arose to the day the order is made. Postjudgment interest runs from the day the order is made until the money is paid. Both are governed by Part 16 of the Judicature Act, RSPEI 1988, Cap. J-2.1. Check out our other free tools below.

Prince Edward Island sets its rates one quarter at a time. The Registrar works out the rate for each quarter and publishes it in the Royal Gazette, as s. 56(2) requires. The rate is picked by a single date and then stays put: for interest before judgment it is the quarter the lawsuit started, and for interest after judgment it is the quarter the order was made. Later rate changes do not affect a claim that has already started running. This calculator uses the published table, exactly as printed, back to the first quarter of 2002.

It handles ordinary money judgments. It does not handle personal injury awards, because two parts of those are calculated differently: damages for pain and suffering carry a fixed rate under s. 57(2), and past losses such as lost income are worked out at six month rests under s. 57(3). Interest before judgment is also not payable on costs, on punitive damages, or on any future loss the court has identified.

Disclaimer: This tool is provided for reference purposes only and does not constitute legal advice. The rates come from the published Royal Gazette table and the method follows Part 16 of the Judicature Act, but a court can adjust interest under s. 59, and the facts of a file can change the result. Check the figure before relying on it. For questions or to report an error, please email admin [at] courtready.ca.

Frequently Asked Questions

Common Questions

What is the prejudgment interest rate in Prince Edward Island?

It depends on the quarter the lawsuit was started in, not on today’s date. For claims started in the third quarter of 2026 the rate is 2.3% a year. Once a claim starts, that rate applies for the whole period up to judgment, so a claim started in early 2022 still runs at 0.3% and one started in late 2023 still runs at 5%. This is prejudgment interest, set by s. 56(1)(d) of the Judicature Act and published quarterly in the Royal Gazette.

What is the postjudgment interest rate in Prince Edward Island, and does it run on costs?

For orders made in the third quarter of 2026 the rate is 4% a year, and it is set by the quarter the order was made in. Yes, it runs on costs: s. 58(1) says interest after judgment is payable on the whole amount, including costs to be assessed or costs fixed by a court. That is the opposite of the rule before judgment, where s. 57(4)(c) says no interest is payable on an award of costs.

When does judgment interest start and stop running in Prince Edward Island?

Before judgment, interest runs from the day the claim arose, which is usually the day the money became owing or the loss happened, up to the day the order is made. After judgment, it starts on the day the order is made and runs until payment. The starting point after judgment is the day the order was made, even if it has not been entered yet or is varied on appeal, which is what s. 56(1)(b) provides.

Does this calculator work for a personal injury claim?

No. Two heads of a personal injury award are calculated a different way. Damages for pain and suffering carry the discount rate set by Rule 53.09(1) of the Rules of Civil Procedure, which is 2.5% a year no matter when the claim started, under s. 57(2). Past losses such as lost income and money already spent are calculated on the running total at the end of each six month period, under s. 57(3). Using the general rate on either one will give a figure that is well out.

Does judgment interest apply to Small Claims in Prince Edward Island?

Yes. The interest rules in Part 16 apply to any proceeding in the Supreme Court, and the Small Claims Section is one of the four Sections of that court under s. 12(1) of the Judicature Act. The same published rates and the same start and end dates apply to a Small Claims judgment as to any other.

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