Canada version
How it works
Apply the OSFI uninsured-mortgage qualifying-rate floor and buffer, using Canadian nominal semi-annual compounding for a level monthly payment.
This is the Canada planning view, with monetary inputs and outputs in CAD. A currency label does not establish that a tax rate, construction price, coverage rule or legal limit has been verified locally. The inputs and limitations below describe the actual scope.
Input query strings and outputs
Use an input name in this page’s URL as ?name=value, and join additional inputs with &. Portable shared links may instead use the compact ?ac= state parameter.
Input query strings
8-
?principal=Mortgage principalMoney · Required · Default: 280,000
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?contractRate=Contract nominal annual ratePercentage · Required · Default: 4.5
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?years=Amortization yearsNumber · Required · Default: 25
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?income=Gross annual household incomeMoney · Required · Default: 80,000
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?housingOther=Monthly property tax, heating and assessed condo allowanceMoney · Required · Default: 400
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?debt=Other monthly debt paymentsMoney · Required · Default: 200
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?gdsLimit=Verified lender GDS limitPercentage · Required · Default: 39
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?tdsLimit=Verified lender TDS limitPercentage · Required · Default: 44
Outputs
5-
qualifyingRateQualifying nominal annual ratePercentage
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paymentStressed monthly mortgage paymentCurrency · Primary output · Currency: CAD
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gdsGross debt-service ratioPercentage
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tdsTotal debt-service ratioPercentage
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assessmentEntered-limit comparisonText
Formula
Qualifying rate = max(contract + 2 percentage points, 5.25%). Monthly rate = (1 + nominal/2)^(1/6) − 1.
Calculations retain numeric precision internally. Displayed values are rounded for readability. Quantities that must be purchased as whole units are rounded up only where the formula explicitly requires it.
Read the inputs before calculating
- Mortgage principal: Enter the quantity described by the label.
- Contract nominal annual rate: Enter the quantity described by the label.
- Amortization years: Enter the quantity described by the label.
- Gross annual household income: Enter the quantity described by the label.
- Monthly property tax, heating and assessed condo allowance: Enter the quantity described by the label.
- Other monthly debt payments: Enter the quantity described by the label.
- Verified lender GDS limit: Enter the quantity described by the label.
- Verified lender TDS limit: Enter the quantity described by the label.
Reproducible worked example
The following is a fictional arithmetic example, not a local quote, a verified claimant or a market forecast. Its values are included so the formula can be checked. The form does not automatically confirm any verification checkbox.
| Input | Example value |
|---|---|
| Mortgage principal | 280,000 |
| Contract nominal annual rate | 4.5 |
| Amortization years | 25 |
| Gross annual household income | 80,000 |
| Monthly property tax, heating and assessed condo allowance | 400 |
| Other monthly debt payments | 200 |
| Verified lender GDS limit | 39 |
| Verified lender TDS limit | 44 |
| Output | Calculated result |
|---|---|
| Qualifying nominal annual rate | 6.5 |
| Stressed monthly mortgage payment | CAD 1,875.5066 |
| Gross debt-service ratio | 34.1326 |
| Total debt-service ratio | 37.1326 |
| Entered-limit comparison | Within entered limits; not an approval |
Interpreting a changed assumption
Start with one complete scenario and change only one input when diagnosing a difference. Recheck units, the period of every rate, whether an amount is recurring or one-off, and whether a cost is already included elsewhere. A larger calculated benefit is not evidence that an assumption is more likely to occur.
Limitations
- Planning calculation, not a tax return, benefit decision, credit approval or legal opinion. No eligibility is inferred from a numeric result.
- Only the stated tax year and expressly supported rule components are included. Entered amounts require independent verification.
- OSFI rule checked 2026-09-24. GDS/TDS limits are explicit lender assumptions, not supplied by the OSFI floor rule. Certain qualifying uninsured straight switches at renewal are excepted.
Frequently asked questions
What does this Canadian Mortgage Stress-test result represent?
Apply the OSFI uninsured-mortgage qualifying-rate floor and buffer, using Canadian nominal semi-annual compounding for a level monthly payment. It applies the displayed formula to your inputs; it does not infer omitted facts.
Are the starting amounts verified Canada prices or legal rules?
No. Numeric defaults are illustrative unless an input or dated reference explicitly identifies a researched component. Currency is CAD; local quotes, eligibility and unsupported rules must be entered and verified separately.
What must I check before relying on the result?
Planning calculation, not a tax return, benefit decision, credit approval or legal opinion. No eligibility is inferred from a numeric result. Only the stated tax year and expressly supported rule components are included. Entered amounts require independent verification.
Can I compare or share different assumptions?
Change one assumption at a time and use the browser-local project or share controls. A shared URL contains the encoded input values; do not include information you do not wish to disclose.
Sources and reference scope
- CA income authority — retrieved 2026-09-24. Use only the expressly supported schedule components; this link does not validate unrelated taxes.
- OSFI uninsured mortgage qualifying rate — retrieved 2026-09-24. Floor/buffer only; this is not lender approval.
These references support only their stated scope. They are not evidence that every local rule or price needed by the master expansion has been loaded.