The Pre-judgment Interest Act
Saskatchewan Prejudgment Interest Calculator (2026)
Interest on a Saskatchewan judgment under The Pre-judgment Interest Act, at the quarterly rates published in The Saskatchewan Gazette. Rates from 1986 to today.
Don't let fake cases become real law. Try CaseCheck.First, does prejudgment interest apply to this claim?
Almost always, yes. Four uncommon situations take a claim outside the Act, and all four are already answered No. If it is not clear whether one of them applies, leave it as No and carry on to the amounts. Section 5(2)(f) to (i).
All four exceptions answered “No.” Review Hide
Is there an agreement between the parties about interest?
For example, an invoice or loan agreement setting a rate.
Does another law already provide for interest on this claim?
Some statutes set their own interest rules for particular kinds of claims.
Was the judgment given on consent, with interest left out of what was agreed?
Answer No if the judgment was contested, or if the consent order deals with interest.
Was money paid into court in this action?
Money deposited with the court to satisfy or settle the claim.
What is the award for?
The Act calculates interest two different ways depending on when the loss was suffered, so this is the question that decides the figure. Pick the line that fits.
Interest from the day the loss began
Amounts owed in full from a single date. One blended rate applies across the whole period. Section 6(1).
Interest from the end of each three-month period
Losses that built up over time rather than landing all at once. Section 6(2).
The judgment is one figure that cannot be broken down Read this Hide
This happens with jury awards. In DeGagne v Bird, 2023 SKKB 94, a jury returned a bare figure for past loss of income and the court could not tell which years it covered. Section 6(2) needs those findings, so the court declined to apply it, applied s. 6(1) instead, and then used s. 5(3) to move the start date forward to cure the over-compensation that resulted. For past cost of care the court did the reverse, working the intervals backwards from an annual figure and spreading the award evenly across forty-four of them. Both routes are open here: put the figure on the s. 6(1) line and set a later start date in the next step, or split it across the periods if the annual amount can be reconstructed.
What to leave out of these amounts Review Hide
- Pecuniary loss arising after the day of judgment that the court identifies as such, for example future income loss or future cost of care. Damages for pain and suffering are not pecuniary loss, so this exclusion does not reach them. Section 5(2)(a).
- Interest already awarded under the Act. Section 5(2)(b).
- Exemplary or punitive damages. Section 5(2)(c).
- Costs of the action. Section 5(2)(d).
- Money borrowed to cover the expenses or lost income above, and interest on that borrowing. Section 5(2)(e).
Interest will be calculated on
Two dates
Interest runs from the day the loss or damage was first sustained to the day of judgment. Both ends count as full days. Section 6(1).
Not the day the action was started, and not necessarily the day the cause of action arose. It is the day the money was first lost or the harm first done. This is the single input that moves the figure most.
Tap the box to pick a date.
Which day is that, for common situations Examples Hide
- An unpaid invoice or account. The day payment fell due, not the day it was issued.
- A loan repayable on demand. The day demand was made.
- A personal injury. The day of the accident or the assault.
- A breach of contract. The day of the breach.
- Money paid out because of someone else's wrong. The day it was paid.
- Employment ended without proper notice. The day the income would have been earned, which is why these amounts belong under s. 6(2) rather than here.
Several amounts fell due on different dates Open helper Hide
Running each amount separately and adding the results is the exact method, but a single mid-point date reproduces it closely where the amounts are spread fairly evenly. On six monthly invoices over a two year period the mid-point lands within about a fifth of a percent of the itemised figure. Using the first due date instead overstates by roughly nine percent, and the last due date understates by about the same.
Enter both dates to see the mid-point.
A court is not bound to this. Section 5(3) lets it award interest for a different period where that is just. In Folbar v Buffalo River Dene Nation, 2006 SKQB 524 the court ran interest on a multi-invoice account from the first day of the month after the last invoice, allowing the paying party a month to settle it.
If judgment has not been given yet, use the date it is expected. Rates are published quarterly, so a date beyond the last published quarter cannot be calculated.
Tap the box to pick a date.
Optional. Leave blank if they continued up to judgment. In DeGagne v Bird, 2023 SKKB 94 the losses ran for eleven years while judgment came later still, and the court spread the award across the periods that actually carried loss rather than every period to judgment.
Tap the box to pick a date.
The period
The figure
Prejudgment interest
$0.00
On the lump sum, under s. 6(1)
| Quarter | Rate | Days in the period | Share of the average |
|---|
Every quarter above counts once, whatever the number of days. The blended rate is their plain average, and it is that single rate that applies across the whole period. There is no separate interest figure per quarter.
On expenses and income lost, under s. 6(2)
| Three-month period | Amount | Rate at period end | Days to judgment | Interest |
|---|
How this was worked out Method Hide
This is a calculation tool, not legal advice, and the figure it produces is not a substitute for a lawyer's judgment on the facts of a particular case. Section 5(3) lets a court refuse interest, or award it at a different rate or for a different period, where that is just. Rates are transcribed from the cumulative notice published under The Pre-judgment Interest Regulations and are checked against the source on every release. Errors can be reported to admin [at] courtready.ca.
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Published rates
Saskatchewan prejudgment interest rates, 1986 to today
A rate is set for each quarter under The Pre-judgment Interest Regulations, as the average yield announced by the Bank of Canada at the last weekly Government of Canada 91-day Treasury Bill tender before the quarter begins, and published by the Inspector of Legal Offices in The Saskatchewan Gazette. Under section 6(1) every quarter a claim touches counts once in the average, whatever the number of days.
Rate in effect today
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Highest on record
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Lowest on record
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| Year | Q1Jan 1 to Mar 31 | Q2Apr 1 to Jun 30 | Q3Jul 1 to Sep 30 | Q4Oct 1 to Dec 31 |
|---|---|---|---|---|
| Loading the published rates. | ||||
Shading runs from the lowest published rate to the highest, so the shape of four decades is visible at a glance. The quarter in effect today is filled coral.
Transcribed from the cumulative notice published under the Regulations and machine-checked against the source on every release. The Saskatchewan Gazette governs; if a figure here differs from the Gazette, the Gazette is right and we would be glad to hear about it at admin [at] courtready.ca. Three period labels in the official notice contain obvious typographical slips, none of which affects a rate: an April 2 start date in the second quarter of 2001, a start date with the year omitted in the fourth quarter of 2015, and a start date reading 2020 inside the 2021 sequence. Those quarters are shown here on their correct boundaries.
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Saskatchewan Prejudgment Interest Calculator
This calculator works out prejudgment interest under The Pre-judgment Interest Act, SS 1984-85-86, c P-22.2, using the quarterly rates published in The Saskatchewan Gazette since 1986. The Act sets out two different calculations, and the calculator runs whichever the award calls for: section 6(1) for a lump sum owed from a single date, and section 6(2) for expenses incurred or income lost, which are gathered into three-month periods. Check out our other free tools below.
Two limits are worth knowing before relying on the figure. The Act does not apply at all to a cause of action arising before 1 January 1986 (section 8), and rates are published only a quarter at a time, so a judgment date beyond the last published quarter cannot be calculated. Section 5(3) also lets a court refuse interest, or award it at a different rate or for a different period, where that is just, so this is the statutory starting point rather than the last word.
Disclaimer: This tool is provided for reference purposes only and does not constitute legal advice. Rates are transcribed from the cumulative notice published under The Pre-judgment Interest Regulations and are machine-checked against the source on every release. For questions or to report an error, please email admin [at] courtready.ca.
Common Questions
How is prejudgment interest calculated in Saskatchewan?
Two ways, depending on what the money is for. A lump sum owed from one date falls under section 6(1): one blended rate across the whole period, being the plain average of every quarterly rate in effect during it. Expenses incurred or income lost fall under section 6(2): gathered into three-month periods from the day the loss began, with interest on each running only from that period’s last day. The Court of Appeal has held the split is mandatory: Janke v Cenalta Oil Well Servicing Ltd. The calculator runs both and adds them.
What interest rate applies, and where do the rates come from?
The regulations set the rate for each quarter as the average yield announced by the Bank of Canada at the last weekly Government of Canada 91-day Treasury Bill tender before that quarter starts. The Inspector of Legal Offices publishes it in The Saskatchewan Gazette. Rates run from 1 January 1986. Under section 6(1) every quarter the period touches counts once in the average, whatever the number of days, so a quarter caught for a single day carries the same weight as a full one.
When does prejudgment interest start running?
From the day the loss or damage was first sustained, not from the day proceedings were started. The Act contains no reference to commencing an action. In Donahue v Belitski interest ran from the date of the injury, ten months before the claim was filed, and in Folbar v Buffalo River Dene Nation it ran for more than three years before the action began, because the paying party had had the use of the money throughout.
Do damages for pain and suffering earn prejudgment interest?
Yes. Nothing in section 5(2) excludes non-pecuniary damages, and section 2(c) narrows the definition of “pecuniary loss” so that the exclusion for loss arising after judgment cannot reach them. In Donahue v Belitski the court awarded interest on a $150,000 non-pecuniary award, running from the day of the injury. There is no separate or reduced rate for these damages; the ordinary section 6(1) rate applies.
Is the interest compounded, and can a court change the rate or the period?
Interest is simple, never compounded. Section 5(2)(b) bars interest on interest, and in Folbar v Buffalo River Dene Nation the court applied the general rule that interest is not compounded absent a clear agreement, citing Shaver v Rotelick. The rate and period are not fixed either. Section 5(3) lets a court award interest at a different rate or for a different period where that is just, as happened in Folbar and in DeGagne v Bird, where a jury’s lump sum made the section 6(2) findings impossible.
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