Ottawa mortgage guide · plain english
By Nick Bachusky, Mortgage Agent Level 1 · Published July 19, 2026
If you are buying a home or refinancing, the mortgage stress test is the rule that decides how much a lender will actually give you. It trips up more Ottawa buyers than the rate itself.
Here is the plain version. You do not qualify at the rate you were quoted. You qualify at a higher one, so the mortgage you are approved for comes out smaller than you expect.
Below I will show you exactly how the qualifying rate works, how much buying power it costs you, who it applies to, and the 2024 rule change that makes switching lenders easier. You can also compare current Ottawa mortgage rates any time.
The short version
A mortgage stress test is a rule that makes you prove you can afford your payments at a rate higher than the one in your contract. It exists so a rate rise or a drop in income does not put you at risk of missing payments.
The rule comes from Canada's banking regulator, OSFI, through a guideline called B-20. In plain terms, the lender pretends your rate is higher than it is, then checks that your income still covers the payment.
You will also hear it called the minimum qualifying rate, or MQR. The two names mean the same thing. The OSFI minimum qualifying rate page spells out the current number and reviews it at least once a year.
So the stress test is not a hurdle designed to punish you. It is a buffer. It is the reason so few Canadians who qualified in the last few years have fallen behind, even as rates climbed.
Your mortgage qualifying rate is the higher of two numbers: a floor of 5.25%, or your contract rate plus 2%. Whichever is larger is the rate the lender tests you at. That is the whole formula.
An example. If your quoted rate is 4.25%, then your rate plus 2% is 6.25%. That is higher than the 5.25% floor, so you qualify at 6.25%. If your quoted rate were 3.00%, your rate plus 2% would be 5.00%, which is below the floor, so you would qualify at 5.25% instead.
Then the lender applies two income ratios at that qualifying rate. Your housing costs should stay within about 39% of your gross income, and your total debts within about 44%. The federal preapproval guidance lays out those ratios.
| Your contract rate | Rate you are tested at | Approx. max mortgage* |
|---|---|---|
| 3.00% or lower | 5.25% (the floor) | $534,000 |
| 4.25% | 6.25% | $485,000 |
| 5.00% | 7.00% | $453,000 |
| 5.75% | 7.75% | $424,000 |
*Illustration only, for a household directing about $3,200 a month to the mortgage over a 25 year amortization. Your real numbers depend on income, debts, down payment, and property taxes. Dated 2026.
See it move
Often by six figures. Because you qualify at a rate about 2% higher than your own, your approved mortgage drops well below what your real payment could carry. On a typical Ottawa budget that gap is often around 100,000 dollars of buying power.
Drag the slider to your rate. The tool shows your qualifying rate, and how the stress test trims the mortgage you can be approved for. It assumes a household putting about $3,200 a month toward the mortgage over 25 years.
The stress test trims your buying power by about $106,000 in this example.
Illustration using the OSFI qualifying-rate rule (higher of 5.25% or your rate plus 2%). Real approvals also depend on income, debts, down payment, and taxes. It is not a quote. To ground it in your numbers, see how much mortgage you can afford in Ottawa or run your own numbers.
It applies to most new mortgages at federally regulated lenders, which means the banks. It covers both insured mortgages, with less than 20% down, and uninsured mortgages, with 20% or more down. Since 2021, both use the same qualifying rate.
Credit unions are the exception. They are provincially regulated, so the federal rule does not legally bind them. Many still apply a similar test by choice, but a credit union can have room a bank does not. It is always worth asking one how it qualifies you.
Already have a mortgage? The test still shows up if you refinance or take out a home equity line of credit, because you are taking on new borrowing. Staying put at renewal is where the rules ease, which is the next section.
A rate is not just a rate. What you qualify for, and the penalty to leave, matter just as much.
This is why I shop across banks, credit unions, and mortgage-only lenders on every file. Different lenders qualify you differently and price the exit differently. You can read more on why the penalty matters as much as the rate.
Not the way you used to. If you renew with your current lender, you do not re-pass the test. And since November 21, 2024, you also do not have to re-pass it for a straight switch to a new lender, as long as you keep the same loan amount and amortization.
This is a big change, and most people do not know it happened. OSFI now states plainly that it does not expect lenders to apply the qualifying rate for uninsured straight switches at renewal. You can see that wording on the OSFI minimum qualifying rate page.
Why it matters: before this, a borrower who could not re-pass the test at today's higher rates was stuck. They had to accept their lender's renewal offer because they could not move. Now they can shop. That quietly hands the bargaining power back to you.
The catch is in the word straight. Add money to the mortgage or stretch the amortization and it is no longer a straight switch, so the test can come back. Here is how I approach an Ottawa renewal so you use that advantage instead of losing it.
From how I actually work
When we talk, I run the real stress-tested numbers with you on a screen share and show you two figures: the maximum a lender will approve, and a comfortable number that still leaves room for your life. They are rarely the same.
I would rather you keep doing the things you enjoy than be approved for the maximum and end up house poor. The stress test pushes people toward that comfortable number, and I think that is a good thing.
You work the numbers the test uses, not the test itself. The strongest levers are clearing debt, negotiating a lower rate, choosing a longer amortization, and putting more down. Each one lifts the mortgage you qualify for.
Car loans, credit cards, and lines of credit all count against your 44% total-debt limit. Clearing a car payment can free up more borrowing room than a small rate cut. It is often the fastest lever you control.
Your qualifying rate is your contract rate plus 2%, so a lower rate lowers the bar you are tested against. Shopping several lenders, which is what I do on every file, is the honest way to get there. See today's Ottawa mortgage rates to compare.
Spreading payments over 30 years instead of 25 lowers the monthly figure the test measures, so you qualify for more. First-time buyers and buyers of newly built homes can now use 30 years. It costs more interest over time, so weigh it.
More money down means a smaller mortgage to qualify for. A co-borrower with income can also lift the ratios. The federal guide to choosing a mortgage is a solid, neutral read on the trade-offs.
One thing I would not count on is the rule disappearing. OSFI reviews it every year and has kept it. Plan around the test you have, and if you are just starting out, first-time buyers in Ottawa have a few extra tools to work with.
Still wondering?
Yes. Federally regulated lenders still apply the mortgage stress test in 2026. OSFI reviews the minimum qualifying rate at least once a year and has kept the rule of the higher of 5.25% or your contract rate plus 2%. There is no announced plan to remove it.
There is no announced plan to get rid of it. OSFI reviews the floor and the buffer at least annually and adjusts for risk in the housing market and economy. The one real change was in late 2024, when uninsured borrowers doing a straight switch at renewal were freed from re-testing.
Not automatically. Credit unions are provincially regulated, so they are not legally bound by the federal stress test the way banks are. Many still apply a similar qualifying rate by choice. It is worth asking a credit union directly how it qualifies you.
There is no single number. Lenders check that your housing costs stay within about 39% of your gross income and your total debts within about 44%, measured at the qualifying rate. The more debt you carry, the more income you need. I can run your exact figures in a few minutes.
If you stay with your current lender at renewal, you generally do not re-pass the stress test. Since November 21, 2024 you also do not have to re-pass it for a straight switch to a new federally regulated lender, as long as you do not raise the loan amount or the amortization.
No. There is no fee for my service on a standard residential mortgage. I will run the real stress-tested numbers with you and show both your maximum and a comfortable number. Nick Bachusky is a Mortgage Agent Level 1 with Referral Mortgages Inc., FSRA #13316.
About the author
I am Nick Bachusky, a Mortgage Agent Level 1 working under Referral Mortgages Inc. (FSRA #13316). I have spent 14 years in mortgages, including time at RBC and TD, and I run the real qualifying numbers with clients so nothing is a surprise.
I work one file at a time and keep it plain. Every client should feel like my only client. If you want to know exactly what you qualify for, I am one WhatsApp message away.
Nick Bachusky · Mortgage Agent Level 1 · Referral Mortgages Inc. · FSRA #13316. Rate and dollar figures on this page are dated examples for 2026, not quotes or guarantees. Always confirm the current qualifying rate and your own numbers before you decide.
Keep reading
A few plain-language reads to take the next step, from today's rates to your affordability, your renewal plan, and the penalty math.
See today's fixed and variable rates, quoted by file, and the penalty behind each one.
Nick Bachusky July 2026 The real GDS and TDS math, an affordability estimator, and why the calculator number reads high.
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Get in touch
Getting a mortgage does not need to be stressful. Leave your details and I reply within about 30 minutes during business hours.
I will run the real stress-tested numbers with you, shop dozens of lenders, and show you both your maximum and a comfortable number. No pressure, no exclusivity.
Nick Bachusky · Mortgage Agent Level 1 · Referral Mortgages Inc. · FSRA #13316.