How is a Canadian mortgage payment calculated?
Canadian mortgages compound semi-annually by law. We convert your contract rate to an effective monthly rate, then amortize principal plus CMHC premium if applicable.

Monthly payment, total interest, and CMHC premium with Canadian semi-annual compounding. Plus a behavioral lens on anchoring so the math matches your mindset.
Educational estimates only. Not personalized advice. Data targets 2026 Canadian rules.
Behavioral lens: Anchoring
Your brain locks onto the monthly number because it fits a mental slot in your budget. Total interest is abstract until you see it beside the payment. That is anchoring, and it costs Canadians years of wealth.
Anchor on total cost, not just the monthly line item
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On a $500,000 home with $50,000 down (10%) at 4.79% over 25 years, the monthly payment is about $2,643 and lifetime interest is roughly $328,999 under Canadian semi-annual compounding.
Enter price, down payment, rate, and amortization.
See monthly payment beside lifetime interest and CMHC premium.
Compare what feels affordable vs what you actually pay the bank.
Anchoring on the monthly payment. Your brain locks onto the monthly number because it fits a mental slot in your budget. Total interest is abstract until you see it beside the payment. That is anchoring, and it costs Canadians years of wealth.
Behavioral finance research shows that anchoring quietly shapes money choices long before a spreadsheet does. People often treat the first number they see — a monthly payment, a tax refund, an approval amount — as the “real” answer, then build a story that defends it. This calculator surfaces a second number on purpose: total cost, opportunity cost, runway, or match left on the table.
Use the outputs as decision hygiene, not destiny. Re-run the tool when rates, income, or goals change. Pair the estimate with a habit system — automatic transfers, spending reviews, and future-self reminders — so the insight survives past the browser tab. PsyFi exists to turn that moment of clarity into ongoing behavior change.
Authoritative sources for Canadian rules include the Canada Revenue Agency and the Financial Consumer Agency of Canada. Always confirm current limits, stress-test rates, and program details before you commit to a contract or contribution.
Authoritative sources
See if your mortgage max leaves room to breathe after stress test, GDS/TDS limits, and your real life budget.
Behavioral lens: Optimism bias
Estimate CMHC mortgage insurance premium by down payment percentage.
Behavioral lens: Framing
Compare total cost of renting versus buying over your chosen time horizon.
Behavioral lens: Status quo bias
Provincial and municipal land transfer tax with first-time buyer rebates.
Behavioral lens: Sunk cost
Canadian mortgages compound semi-annually by law. We convert your contract rate to an effective monthly rate, then amortize principal plus CMHC premium if applicable.
Most buyers anchor on the monthly payment. Showing total interest reveals the true cost of borrowing and supports better trade-off decisions.
Yes. Every PsyFi free tool runs in your browser with no signup. We built them to pair accurate math with behavioral science, not to gate basic estimates behind an account.
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No. These are educational estimates using published rules for 2026. They are not tax, legal, mortgage, or immigration advice. Confirm current rates and your situation with qualified professionals before acting.
Estimates for education only. Not financial, tax, mortgage, immigration, or legal advice. Canadian rules and rates change. Verify current figures with qualified professionals before making decisions. PsyFi tools add behavioral context; they do not replace personalized planning.