Mortgage Stress Test Canada 2026: Does It Apply When You Renew or Switch Lenders?

Short answer

Your renewal letter isn't a stress-test verdict. Staying with your current lender? No test. Since 2020, the federal bank regulator (OSFI) has said lenders don't have to check your finances again at renewal. Moving a mortgage without default insurance from one bank to another at renewal? Since November 21, 2024, you can skip the official test rate, as long as you don't borrow more or add years. Refinance or borrow more, and you're tested again. The test rate is the higher of 5.25% or your rate plus 2%.

Key takeaways

• You can be fine to switch and still not qualify to refinance the same balance. In the hypothetical example below, 35.27% of income goes to housing and 41.27% to all debts at the real rate. At the test rate, that's 40.51% and 46.51%. The yardstick is 39% and 44%.
• Staying with your lender: no new test.
• Switching without borrowing more or adding years: you skip the official test rate. The new lender still looks at your whole file.
• Borrow more, add years or add a line of credit (HELOC), and the stress test is back.
• The rule covers banks. An Ontario credit union picks its own test rate.

Can you shop that letter around? Three things decide it:

• who regulates your lender, and the new one;
• whether your mortgage has default insurance;
• whether anything about the loan changes.

A few plain words first. On this page, "bank" means a bank or other lender regulated by Ottawa. The official term is federally regulated lender. Default insurance is the mortgage insurance you typically need with less than 20% down. A mortgage without it is called uninsured. Amortization is the years left to pay your mortgage off. The test rate is what lenders call the minimum qualifying rate. Now find your row.

Does the stress test apply at renewal? Six scenarios

Sources checked October 12, 2026. "Official" means the test rate that federal rules set. A lender can still choose to test you at a higher rate.

What counts as a straight switch?

Not every switch at renewal counts. OSFI's November 21, 2024 letter sets three conditions:

• Your mortgage has no default insurance and isn't tied to a line of credit. OSFI calls this a stand-alone uninsured mortgage. It has to be a mortgage you pay down, and one you can't re-borrow from. It can be registered as a standard or a collateral charge. A mortgage set up in one plan with a HELOC may not count.
• You're moving from one bank to another. OSFI's words are "federally regulated financial institution". A mortgage that's with a credit union or a private lender today isn't described by this rule.
• You don't borrow more or add years. One exception: the balance can go up by $3,000 to cover costs such as penalties or fees. You can't take equity out.

Want extra money for a renovation, or to pay off other debt? That's a refinance, not a switch. The refinance versus renewal comparison walks through that choice. Refinancing your home in Ontario covers what a refinance involves.

Skipping the test doesn't mean you're approved

Skipping the test takes away one number. You still have to apply. OSFI's letter tells the new lender to treat you like any other new mortgage. The new lender has to approve you, and it may use different rules than your current lender. It decides what it needs from you.

This matters most if your income has changed since you first qualified. Say you've become self-employed. The official test rate is gone, but the lender still checks your income. The self-employed mortgage guide covers that side.

Switching also costs money. The new lender may charge setup fees. Your current lender may charge to discharge, register, transfer or assign the mortgage. You may also pay for an appraisal. If you're leaving before your term ends, read how mortgage prepayment penalties work first.

The 2026 test rate (qualifying rate): 5.25% or your rate plus 2%

The test rate isn't the rate you pay. It's a higher rate the lender uses to check you could still afford the payment. OSFI sets it this way: take the rate on your mortgage offer and add 2%. If that comes to less than 5.25%, the lender uses 5.25%. Both numbers were unchanged when this page was checked on October 12, 2026. CMHC uses the same formula for mortgages with default insurance.

These rates are examples, not quotes. Once your rate is above 3.25%, the 5.25% minimum stops mattering. Your test rate is simply your rate plus two points.

OSFI reviews both numbers at least once a year. It talks to the Department of Finance and the Bank of Canada first. The Bank of Canada doesn't set the rate.

Banks versus credit unions

The rule covers banks. Ontario credit unions answer to the province, and FSRA's guidance leaves the numbers to them. A credit union still tests your payment. It picks its own test rate and its own limits.

Two things follow at renewal. A credit union may be easier or tougher than a bank on your file. And the straight-switch rule is about moving from one bank to another. It doesn't describe a move to or from a credit union.

Ask this in writing: What test rate do you use? What are your limits for housing costs and for total debts (GDS and TDS)? Do you treat a move from a bank as a new application?

GDS and TDS in brief

The test rate gives the lender a test payment. The lender then asks two questions.

• How much of your income goes to housing costs? That's your payment, property tax, heat and half of any condo fees, divided by your income before tax. Lenders call it GDS.
• How much goes to all your debts? That's the same housing costs plus your other debt payments. Lenders call it TDS.

CMHC caps mortgages with default insurance at 39% for housing and 44% for all debts. Without default insurance, each lender sets its own limits, so ask what yours are. The longer version is in how much house you can afford in Ontario. The terms are in the mortgage glossary.

Worked example: one household, four renewal paths

Hypothetical worked example

The same mortgage tested at the real rate and at the test rate

Mortgage at renewal

$520,000 balance, 20 years left to pay it off, no default insurance, not tied to a line of credit, held at a bank

Hypothetical rate offered

4.29% (not a quote). Test rate: 4.29% + 2% = 6.29%, which is above the 5.25% minimum

Household

$130,000 income before tax ($10,833.33 a month); $450 property tax and $150 heat a month; no condo fees; $650 a month in other debt payments

At the 4.29% rate you'd pay

Payment $3,220.62 a month. Housing costs 35.27% of income (GDS). All debts 41.27% (TDS)

At the 6.29% test rate

Payment $3,788.45 a month. Housing costs 40.51%. All debts 46.51%

Switch and add $50,000

$570,000 over the same 20 years at the 6.29% test rate: payment $4,152.72 a month. Housing costs 43.87%. All debts 49.87%

Difference

$567.83 a month between the two test payments on $520,000. The household never pays this amount. It only changes the percentages

This is a hypothetical illustration, not a client result or a lender decision. Assumptions: monthly payments, fixed rate, interest compounded semi-annually. The 39% and 44% yardstick is CMHC's limit for mortgages with default insurance.

Read the four paths against those numbers:

• Stay with the current lender. The lender doesn't have to check your finances again. Neither set of numbers has to be run.
• Straight switch. The 6.29% official test rate doesn't apply. The new lender still reviews the file and picks its own test rate. At 4.29%, this household is inside the yardstick.
• Refinance the same balance. The lender tests the file at 6.29%. Both percentages land above the yardstick, before a single extra dollar is added.
• Switch and add $50,000. A straight switch lets you add only $3,000, so this isn't one. The 6.29% test applies to the full $570,000. Housing costs move to 43.87% of income. All debts move to 49.87%. That's the cliff. The extra $50,000 doesn't just raise the payment. It changes the rate the whole mortgage is tested at.

So the kind of deal matters more than the rate on the letter. You can be fine to switch and still not qualify to refinance the same balance.

To run your own numbers, start with the mortgage renewal calculator. Then use the Ontario mortgage payment calculator to see the payment at each rate. Neither one can tell you how a lender will treat your full file.

Before your renewal date: what to check

Get these together before the letter arrives:

1. The timeline. A bank has to send your renewal statement at least 21 days before the term ends. That's tight for a switch.
2. The date your term ends, your balance and the years left. A straight switch keeps the balance and the years where they are.
3. Whether you have default insurance. Your original mortgage papers or your lender can tell you.
4. Whether a line of credit (HELOC) is tied to it. A mortgage and credit line in one plan may not count as a straight switch.
5. Who regulates your lender. A bank or federal trust company answers to Ottawa. A credit union answers to the province. That decides which rules apply.
6. Your income and debt papers. The new lender reviews your file even when you skip the official test rate.

If your letter renews on its own unless you act, read about the automatic mortgage renewal trap before the date passes. The Ontario mortgage renewal guide covers the rest of renewal. The Toronto mortgage renewal guide covers the local version.

Passing the test, or skipping it, doesn't tell you the payment is comfortable. Check it against your own budget before you compare lenders.

Sources and method

Every rule here was checked against the linked OSFI, Finance Canada, FCAC, CMHC and FSRA pages on October 12, 2026. The example uses the usual Canadian method for fixed-rate payments, where interest compounds twice a year. Rules and lender policies change. None of this is advice on your file.