This tool is an educational estimate, not a mortgage pre-approval or lender decision. For estimation, we use the minimum qualifying rate for uninsured mortgages described by OSFI (the higher of your contract rate + 2% or 5.25%, based on the latest reviewed values — these may change after future official review). We compare your ratios using common CMHC-style limits of 39% GDS and 44% TDS; lenders may use different thresholds. Insured vs uninsured treatment may differ.
Enter gross household income before tax for the full year
Car loans, credit cards, lines of credit, and other monthly obligations.
Total purchase price before closing costs.
Upfront amount applied to the purchase price.
Your offered or expected contract rate, not the stress-test rate.
Typical amortization is 25 years for insured mortgages.
Estimated yearly property tax bill for this home.
Enter all required values to calculate your stress test result.
For estimation, qualifying rate follows OSFI uninsured-style guidance: max(contract + 2%, 5.25%). Ratios use common CMHC-style limits: GDS 39%, TDS 44%. The 5.25% floor and 2% buffer are based on the latest reviewed values and may change after future official review. Default advanced fields: heating $0, condo fees $0, payment frequency monthly — blank heating or condo fees are treated as $0 and may understate costs. Insured vs uninsured treatment and lender underwriting may differ.
Last updated: March 2026 | Qualifying rate floor/buffer based on OSFI uninsured mortgage guidance; ratio limits described in CMHC-style terms. Not financial or legal advice.
Federally regulated lenders apply underwriting rules that include a stress-test qualifying rate. For estimation, we use OSFI uninsured-style guidance: the higher of contract rate + 2% or 5.25%. Insured mortgages and other products may be assessed differently. Lender underwriting may differ from this simplified model.
We estimate mortgage payments at your contract rate and at the stress-test rate, then use stress-test housing costs to compute ratios. We compare those to common CMHC-style limits of 39% GDS and 44% TDS. Estimated maximum mortgage and maximum purchase price are simplified model outputs only — not a pre-approval or guaranteed limit. If heating costs or condo fees are left blank, this calculator assumes $0 for those fields, which may understate real housing costs.
Housing costs in this tool include stress-test principal and interest, property taxes, heating, and 50% of condo fees (CMHC-style). TDS adds your entered non-housing debt. Blank heating or condo fee fields are treated as $0 and may understate costs. Your lender may use different inputs or qualifiers.
Improve your qualification by increasing down payment, reducing debt payments, selecting a lower home price, extending amortization (where allowed), or applying with stronger household income support.
Lenders assess whether you can afford payments at a stress-test qualifying rate, not only at your contract rate. Rules differ for insured vs uninsured mortgages and by lender. This tool is an educational estimate, not a mortgage pre-approval or lender decision.
For estimation, we use the minimum qualifying rate for uninsured mortgages described by OSFI: the higher of your contract rate + 2% or 5.25%. OSFI reviews the floor (5.25%) and buffer (2%) at least annually; values may change after a future official review.
This calculator estimates: qualifying rate = max(contract mortgage rate + 2%, 5.25%), aligned with OSFI uninsured-style guidance. Insured and uninsured treatment can differ; confirm with your lender.
We compare your ratios using common CMHC-style limits of 39% GDS and 44% TDS. GDS compares housing costs to gross income; TDS adds other monthly debt. Lenders may use different thresholds.
In this model, a fail means ratios exceed those limits under the inputs you entered. You may still have options (different lender, product, down payment, or debt level). This result is not a lender decision.
It depends on your mortgage type, lender, and whether the switch changes the loan amount or amortization. OSFI describes exemptions for certain uninsured straight switches. Ask your lender or broker for your situation.
Required income depends on stress-test payment, taxes, heating, condo fees, and other debts. This tool gives a simplified estimate only; underwriting may differ.
For CMHC-style housing costs, typically 50% of monthly condo fees are included. This calculator applies that rule; if you leave condo fees blank, it assumes $0, which may understate real housing costs.