Mortgage tools

Ontario mortgage calculators

Choose the calculation you need. Each tool shows its assumptions and links to the relevant official source.

Reviewed August 31, 2026Illustrative estimates

Mortgage affordabilityEstimate a maximum mortgage using income, housing costs, debts, and the federal minimum qualifying rate.Down payment and insuranceCalculate the minimum down payment, estimated mortgage-insurance premium, Ontario tax on the premium, and total mortgage.Land transfer taxEstimate Ontario land transfer tax, Toronto municipal land transfer tax, and available first-time buyer rebates.Mortgage paymentEstimate a monthly mortgage payment using Canadian semi-annual interest compounding.Renewal comparisonCompare a lender renewal offer with another rate using the same balance, amortization, and term.Prepayment penaltyEstimate three months' interest and a simplified interest-rate-differential amount before requesting a lender payout quote.Break or keepCompare estimated interest, payments, remaining balances, penalty, and transaction costs over the same period.Refinance comparisonCompare payment, interest, transaction costs, and remaining balance over the same period.Home equityEstimate gross equity, total secured borrowing room, and illustrative HELOC room.Private mortgage costEstimate net funds, interest-only payments, fees, total borrowing cost, and principal due at maturity.