Canada mortgage qualification estimate
See whether your mortgage passes Canada’s stress test — and what breaks first.
Compare your contract payment with the stress-tested qualifying payment, see your estimated GDS/TDS pressure, and find the number most likely to block approval before you get too far into the purchase.
Inputs
Use the purchase price, down payment, household income, debts, and housing costs you expect a lender to review.
Purchase and mortgage setup
Household qualification numbers
The stress payment is not your actual payment. It is the higher qualifying payment used to test risk.
Debt can break approval faster than price. A car loan or credit card minimum can push TDS over the line.
Condo fees matter. This estimate counts 50% of monthly condo fees toward qualification ratios.
Smart Results
The result focuses on the approval pressure point, not just the monthly payment.
Enter your price, down payment, income, debts, and housing costs. The result will show whether the file looks likely to pass, feels tight, or breaks the planning stress-test limits.
Your result will appear here.
The verdict will explain whether the file appears workable, tight, or outside the planning stress-test range.
Stress-tested payment
—
Maximum qualifying mortgage
—
Buffer / gap
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Approval pressure score
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What this result really means
The result interpretation will appear after calculation.
Biggest risk
The main pressure point will appear after calculation.
What breaks first
The limiting ratio or rule will appear after calculation.
The best repair lever will appear here.
The recommendation will compare price, down payment, debt, income, amortization, and rate sensitivity.
Try this next
Where the stress-test pressure comes from
This table separates the mortgage amount, insurance premium, qualifying payment, housing costs, debt pressure, and the ratio that controls the result.
| Component | Amount | Note |
|---|
Which change actually repairs the file?
These cards compare the levers that usually matter: price, down payment, debt, income, amortization, and rate sensitivity. The priority card is the one with the strongest realistic effect.
Lower purchase price
The price repair result will appear after calculation.
— Waiting for calculation.Increase down payment
The down payment repair result will appear after calculation.
— Waiting for calculation.Reduce monthly debt
The debt repair result will appear after calculation.
— Waiting for calculation.Increase verified income
The income repair result will appear after calculation.
— Waiting for calculation.Extend amortization
The amortization scenario will appear after calculation.
— Waiting for calculation.Rate / stress spread
The rate sensitivity result will appear after calculation.
— Waiting for calculation.Your pressure score against the pass line
The map turns GDS/TDS pressure into one readable approval-pressure line. A score near 100 means the file is sitting on the planning stress-test edge.
What changed the result?
The charts are built to explain the stress-test behavior: payment shock, ratio pressure, and repair leverage.
Contract payment vs stress payment
Shows how much higher the qualifying payment is than the expected contract-rate payment.
GDS and TDS pressure
Shows whether housing cost or total debt is the tighter qualification ratio.
Repair lever comparison
Compares which change moves the pressure score closest to a safer range.
Save the stress-test estimate
Export the assumptions, verdict, GDS/TDS pressure, forensic breakdown, and repair levers as an Excel-readable file.
How to use this mortgage stress test calculator
Start with the purchase price and down payment you are seriously considering. Then enter your expected mortgage rate, household income, monthly debt payments, property tax, heating, and condo fees if they apply. The calculation uses the stress-tested payment, not just the payment at your contract rate, because that is where many mortgage applications become tighter than expected.
The fastest way to read the result is to look at the verdict first, then the killer number, then the pressure score. If the result is tight or failing, do not guess randomly. Use the repair cards to see whether price, down payment, debt reduction, income, amortization, or rate sensitivity actually moves the file.
Use realistic housing costs
Property tax and heating are not small details in a stress test. If you leave them too low, the mortgage may look easier than it really is. For condos, the estimate counts half of the condo fee because that amount can affect qualification ratios.
Compare actual payment separately
Passing the stress test does not mean the monthly payment feels comfortable. After checking qualification pressure, compare your expected payment with the Canada mortgage payment calculator and the cash needed through the closing costs calculator.
What your result actually means
A mortgage stress-test result is not a promise from a lender. It is a pressure reading. A pass means the basic GDS/TDS math appears to leave room under the planning limits. A tight result means the file may still be possible, but small changes in verified income, debt treatment, property tax, condo fees, or rate assumptions can push it over the edge. A fail means the requested mortgage or the down payment setup is outside the planning range used here.
The most important detail is usually not the payment itself. It is what breaks first. If GDS is the issue, the housing cost is too heavy relative to income. If TDS is the issue, existing debts are taking away mortgage room. If the down payment or insurance rule is the issue, the ratios may not even be the first problem.
How to make a decision from the result
The right move depends on the pressure point. A lower price is not always the best fix, and a bigger down payment does not always solve the limiting ratio.
Move to cash-flow comfort
If the file passes with a meaningful monthly buffer, the next question is whether the real payment fits your life. Check the payment, closing costs, emergency fund, and maintenance risk before treating the purchase as safe.
Do not rely on one perfect assumption
Tight files are vulnerable. A slightly higher property tax estimate, a lender counting debt differently, or a lower verified income figure can change the answer. This is where repair cards are more useful than intuition.
Repair the limiting ratio first
If TDS breaks first, debt cleanup may help more than a small price cut. If GDS breaks first, price, down payment, amortization, or housing-cost assumptions usually matter more. If insurance rules break first, fix the down payment structure before chasing ratio improvements.
Real scenarios where the stress test changes the answer
These are common situations where the headline mortgage payment looks reasonable, but the qualification picture is more fragile.
The payment looks fine, but the car loan breaks TDS
A household may afford the mortgage payment in daily life, but a $650 monthly car payment can reduce the mortgage room sharply. In that case, paying down or restructuring debt may move the stress-test result more than increasing the down payment by a small amount.
The condo fee quietly eats qualification room
A condo with a lower purchase price can still test poorly if the monthly fee is high. Because half of the condo fee can count in the ratios, the cheaper unit is not always easier to qualify for than a freehold home.
Insurance premium increases the mortgage being tested
With less than 20% down, the estimated default insurance premium is added to the mortgage amount in this calculator. That means the stress-tested payment may be based on a larger mortgage than the buyer expects from price minus cash down.
Common mistakes that make the stress test misleading
Most bad estimates come from one of these inputs being too optimistic.
Using the contract payment as the qualifying payment
The actual payment and the stress-tested payment are different. The stress payment is the one used for the ratio pressure.
Leaving property tax too low
Underestimating property tax can make GDS look safer than it is. Use the actual tax estimate when you have it.
Ignoring debt minimums
Credit card minimums, car payments, student loans, and lines of credit can be the difference between tight and failing.
Thinking a bigger down payment always fixes approval
More cash helps, but if TDS is the limiter, reducing debt or increasing verified income may be the cleaner repair.
How the calculation works
The estimate starts with your home price and down payment. If the down payment is below 20%, the calculator estimates a default mortgage insurance premium and adds it to the mortgage amount being tested. It then calculates the monthly payment using Canadian mortgage compounding, where the quoted annual rate is compounded semi-annually and converted into an effective monthly rate.
Stress rate
The automatic qualifying rate is the higher of your contract rate plus 2 percentage points or 5.25%. If you manually edit the stress rate, the calculator treats that as a scenario override.
GDS
GDS compares the stress-tested mortgage payment plus property tax, heating, and qualifying condo fees against gross monthly household income. This calculator uses 39% as the planning limit.
TDS
TDS adds your other monthly debt payments to the housing cost and compares the total against gross monthly income. This calculator uses 44% as the planning limit.
Pressure score
The score compares your GDS and TDS pressure against their limits. A score of 100 / 100 means the tighter ratio is sitting on the planning edge. Above 100 means the file is outside the range in this estimate.
Example: if a household earns $120,000 gross per year, monthly income is $10,000. If the stress-tested payment plus property tax, heating, and qualifying condo fees equals $3,700, the GDS is 37%. If the same household also has $600 in monthly debt payments, TDS is 43%. The file may still look workable, but the remaining buffer is thin and debt becomes the risk to watch.
For official mortgage guideline context, review the Government of Canada or federal mortgage qualification resources. This page is designed for planning and comparison, not as a lender decision.
Mortgage stress test calculator Canada
A Canadian mortgage stress test estimate is useful because it separates the payment you may actually make from the payment used to qualify the mortgage. That gap matters. A buyer can feel comfortable with the contract-rate payment but still look tight once the lender tests the file at a higher qualifying rate.
The strongest result is not simply “pass.” The strongest result is knowing why it passes. If the buffer comes from low debt and stable income, the file is usually cleaner. If the buffer depends on a low property tax estimate, a manual stress-rate assumption, or ignoring condo fees, the result deserves a second look. For a broader housing decision, compare this result with mortgage affordability, down payment planning, and rent vs buy.
The calculator is intentionally built around decision quality. It does not try to predict every lender exception. Instead, it shows the main planning ratios, the pressure score, the limiting ratio, the mortgage room, and the repair lever most likely to matter. That makes the result easier to use before a pre-approval conversation, before raising a purchase budget, or before deciding whether a debt payment should be cleaned up first.
FAQ
Practical answers for common mortgage stress-test questions in Canada.
It is a qualification test that checks whether the mortgage still fits at a higher qualifying rate. This calculator uses the higher of the contract rate plus 2 percentage points or 5.25% unless you manually edit the stress rate.
No. This is a planning estimate. Lenders can review verified income, credit history, debt treatment, property details, insurer rules, documentation, employment type, and other factors before making a decision.
TDS includes housing cost plus other monthly debt payments. A car loan, credit card minimum, student loan, or line of credit payment can reduce mortgage room even when the housing payment alone looks manageable.
With a down payment below 20%, an estimated default mortgage insurance premium can be added to the mortgage amount. That larger insured mortgage is what the payment calculation uses in this planning estimate.
It depends on what breaks first. If GDS is tight, price and down payment usually matter. If TDS is tight, reducing monthly debt may help more. The repair cards compare these levers using the same stress-test math.