Desjardins mortgage calculation in 2026: the payment at the 13 September rates, the stress test and what Desjardins does not calculate

Mortgage · Desjardins · September 13, 2026

The payment on a Desjardins mortgage at the rates read on 13 September 2026, on $300,000, $400,000 and $500,000, the stress test that actually decides, and the three things Desjardins' calculator does not tell you.

As at 13 September 2026, Desjardins publishes a 5-year fixed at 6.14% posted and 4.69% on promotion, a reduced variable at 4.45% (4.10% on promotion) and a capped variable at 4.70% with a guaranteed ceiling of 7.54%. On a $400,000 mortgage amortized over 25 years, the 5-year promotional rate gives a payment of about $2,256 a month, the promotional variable $2,126, and the posted 6.14% would raise the payment to $2,593. Whatever rate you get, Desjardins qualifies you at the higher of 5.25% or your rate plus 2 points, so at 6.69% on the promotional offer. The best insured 5-year fixed rate on the market was 4.09% on 11 September: the gap with the Desjardins offer is negotiated or compared through a mortgage broker. This sheet is independent: we are not Desjardins.

The Desjardins rates in the calculation, read on 13 September 2026

Desjardins productPosted ratePromotional rate
1-year fixed5.49%none
3-year fixed6.04%none
5-year fixed6.14%4.69%
5-year reduced variable4.45%4.10%
5-year capped variable4.70%guaranteed ceiling 7.54%

The Desjardins prime rate, the base of the variable, was 4.45%. Our page Desjardins mortgage rates compares this grid with the nine other major lenders; this one does the math.

The payment on $300,000, $400,000 and $500,000 over 25 years

Mortgage (25 years)5-year special 4.69%Variable special 4.10%Capped variable 4.70%Posted 6.14%
$300,000$1,692 / month$1,594 / month$1,694 / month$1,944 / month
$400,000$2,256 / month$2,126 / month$2,259 / month$2,593 / month
$500,000$2,820 / month$2,657 / month$2,823 / month$3,241 / month

Three readings. First, the gap between posted and promotional: on $400,000, $336 a month, $20,176 over five years, which is what simply asking for the offer rather than the window is worth. Then the capped variable: 0.60 of a point above the promotional variable, $133 a month on $400,000, the price of insurance against a rise beyond 7.54%. Finally the market: the best insured 5-year fixed rate was 4.09% on 11 September 2026 (Ratehub), $133 a month less than the Desjardins offer on $400,000; Multi-Prêts posted 4.29% on 14 September.

The calculation that actually decides: the stress test

Desjardins, like every lender applying the rule, qualifies you at the higher of 5.25% or your rate plus 2 points. On the 4.69% promotional offer you are tested at 6.69%; on the 4.10% variable, at 6.10%. The tested payment on $400,000 is about $2,726 a month, and it is that amount, not the real payment, that must fit in your debt ratios (39% of gross income for housing, 44% with other debts). Our page what salary you need to buy turns that test into required income.

What the Desjardins calculator does not tell you

Desjardins pre-authorization: the calculation becomes a guarantee

Desjardins issues a pre-authorization that sets the amount and guarantees the rate for the period shown on the certificate; our page Desjardins mortgage pre-approval details what Desjardins publishes on its duration and rate guarantee, read on 14 September 2026, and why to run it alongside a broker application.

This page is an independent information sheet: the Loaa & Manseur team is not Desjardins and sells no financial product. Rates were read on 13 September 2026 on desjardins.com and change without notice; the rate you are offered depends on your file.

Frequently asked questions

How much does a $400,000 Desjardins mortgage cost per month?

At the rates read on 13 September 2026 and over 25 years: about $2,256 at the 4.69% 5-year promotional fixed, $2,126 at the 4.10% promotional variable, $2,259 at the 4.70% capped variable, and $2,593 at the 6.14% posted rate. Without the insurance premium, which is added under a 20% down payment.

At what rate does Desjardins qualify me?

At the higher of 5.25% or your contract rate plus 2 points: 6.69% on the 4.69% promotional offer, 6.10% on the 4.10% variable. It is the payment at that rate that must fit in your ratios, not the real payment.

Is the Desjardins capped variable worth its cost?

It costs 0.60 of a point more than the promotional variable, about $133 a month on $400,000, against a guaranteed ceiling of 7.54%. It is insurance: worth its price if a rise of more than 3 points would put you in difficulty, expensive if rates stay where they are. Our guide fixed or variable runs the math on your amount.

Sources: desjardins.com, current mortgage rates page, read on 13 September 2026; Bank of Canada (policy rate 2.25% as of 2 September 2026, posted 5-year conventional 6.09%); Ratehub survey of 11 September 2026; multi-prets.com read on 14 September 2026. Payments calculated over 25 years, semi-annual compounding, without insurance premium.

Our proof, not our promises

The Loaa & Manseur team, led by Lotfi Manseur and Loaa Al Daow, is the number 1 team at RE/MAX Platine in 2024 and 2025, 6th RE/MAX team in Quebec, 15th in Canada and in the global top 50 of large residential teams according to the official RE/MAX ranking, computed on actual transactions. Its Google profile counts more than 220 reviews with a 4.9 rating. Its offices are at 55 avenue de l'Équinoxe in Brossard, one bridge from the island, and every broker's licence can be checked in the OACIQ public register. Three things to verify yourself before calling us, and to demand of any other broker.

Also available in French: version française de ce guide.

Published September 7, 2026 by the Loaa & Manseur team, the number 1 team at RE/MAX Platine in 2024 and 2025, 6th RE/MAX team in Quebec, 15th in Canada and in the global top 50 according to the official RE/MAX ranking. Tell us about your project.

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