Ontario mortgage math
Mortgage Payment Calculator — Ontario (2026)
This page calculates Ontario mortgage payments using the correct Canadian semi-annual compounding formula. See a worked example, who regulates brokers in Ontario, and what a lender switch costs at renewal.
Paid monthly.
Educational estimate, not financial or mortgage advice. Confirm figures with your lender or a licensed mortgage professional.
A worked example for Ontario
i = (1 + 0.0429/2)^(2/12) − 1
At $430,000 and a 4.29% fixed rate over a 25-year amortization, that monthly rate produces a payment of $2,329.99 a month.
Ratehub Big 5 rate snapshot, 2026-07-16That balance is the closest verified new-mortgage size figure available this pass — Equifax's Q2 2025 average loan amount for first-time buyers nationally. CMHC does publish a province-level breakdown, sourced from Equifax, but only as a downloadable spreadsheet with no page-readable figures we could verify directly. The same national figure appears on all four province pages until a verified per-province split can be sourced.
Who regulates mortgage brokers in Ontario
Financial Services Regulatory Authority of Ontario (FSRA) licenses and supervises mortgage brokerages and agents working in Ontario. Confirm a broker's licence before signing anything.
FSRA — official siteWhat a lender switch costs at renewal
Switching lenders anywhere in Canada, including Ontario, can add a new appraisal fee of $150–500 and a discharge fee of $5–395 from your current lender. Some lenders cover these costs to win the switch, particularly on larger balances.
Eligible straight switches to another federally regulated lender — same balance, same remaining amortization — have not required the OSFI stress test since November 21, 2024.
Ratehub renewal-switch cost guide (2025) · OSFI minimum qualifying rate guidance, reaffirmed Jan 29, 2026More Ontario renewal tools
- See your renewal payment shock— compare today's payment against your renewal estimate.
- Build your renewal timeline — rate-hold windows and the 21-day statement rule.
Also serving: British Columbia, Alberta, Quebec
Ontario mortgage FAQ
How much would a typical new mortgage cost per month in Ontario?
Using $430,000 — the closest verified national new-mortgage figure available — at a 4.29% fixed rate over 25 years, the payment is $2,329.99 a month under Canada's semi-annual compounding rule. Your own balance and rate will change the number.
Who regulates mortgage brokers in Ontario?
Financial Services Regulatory Authority of Ontario (FSRA) licenses and supervises mortgage brokerages and agents working in Ontario.
What does it cost to switch lenders at renewal in Ontario?
A lender switch anywhere in Canada, including Ontario, can add a new appraisal fee ($150–500) and a discharge fee ($5–395) from your current lender, though some lenders cover these costs to win the switch. Eligible straight switches to another federally regulated lender have not required the mortgage stress test since November 21, 2024.