How to calculate a mortgage renewal payment in Canada

Gather the four numbers that set the payment

Start with the principal balance expected on the renewal date, not the amount originally borrowed. Add the proposed renewal rate, the amortization still remaining, and the payment frequency. A federally regulated lender's renewal statement includes the remaining balance, interest rate, payment frequency, term, and applicable charges or fees.

An actual current payment can help measure payment shock, but it is not required to calculate the renewed principal-and-interest payment. If the entered payment differs materially from the payment implied by the balance, current rate, and amortization, confirm the statement figures before comparing them.

• Remaining balance at renewal
• Proposed annual interest rate
• Remaining amortization
• Monthly, biweekly, weekly, or accelerated payment frequency

Calculate the principal-and-interest payment

RateReset converts the nominal annual mortgage rate, compounded semi-annually, to the effective rate for the selected payment period. It then calculates the level payment needed to amortize the remaining balance over the selected number of payments.

For a practical estimate, enter the four values in the mortgage renewal calculator. The result should first show the estimated new payment and the increase per payment, then the annual budget impact, interest during the selected term, and balance at the following renewal.

Compare the renewal payment with genuine alternatives

Run the same balance and rate under the remaining amortization, an approved longer amortization, and a permitted lump-sum payment. Compare both cash flow and term cost. Extending amortization can reduce the required payment, but it generally increases total interest because the balance is repaid more slowly.

A lump sum lowers the principal used in every later interest calculation, but the mortgage contract controls when and how much you can prepay without a charge. Keep enough liquid savings for near-term needs.

Confirm the estimate before accepting an offer

Compare the calculator with the lender's written renewal statement and proposed payment schedule. Ask the lender to explain any difference in balance, rate, frequency, term, amortization, fees, or first-payment timing.

Use the estimate to prepare questions and compare offers. It is not a lender quote, approval decision, or recommendation for a specific mortgage product.