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Estimate your practical Canadian home-buying budget using the official GDS/TDS ratios and the federal mortgage stress test.
Stress Test Active
You must qualify at the stress test rate. Actual payments use your contract rate. Qualifying at 6.90%
Stress Test Rate
max(contract rate + 2%, 5.25%)
You must qualify at this rate even if your actual contract rate is lower
Monthly Overheads
Tax ÷ 12 + Condo Fees + Heating
GDS Max Mortgage Payment (32%)
Gross Income × 32% − Overheads
TDS Max Mortgage Payment (44%)
Gross Income × 44% − Overheads − Debt
Qualifying Payment
min(GDS, TDS) — binding constraint
GDS is the binding constraint
Maximum Loan
PV at stress test rate 6.90%
Estimated Maximum Home Price
Max Loan + Down Payment
Estimated Actual Monthly Payment
PMT at contract rate 4.9%
What you'll actually pay — the stress test doesn't change your real payment
GDS / TDS Ratios
Max monthly: $2,430
Max monthly: $2,660
Vertical marker = regulatory limit.