When your mortgage term ends and you renew, your payment typically changes based on three factors: your new interest rate, your remaining amortization period, and your outstanding principal balance. Most Canadian homeowners renewing in 2026 after a five-year term will see payment adjustments because renewal rates differ from the rates they locked in during 2021 or earlier.

Understanding the Canadian Mortgage Term and Renewal

Canadian mortgages separate the term (the period your rate and conditions are locked in, typically one to five years) from the amortization (the full repayment period, commonly 25 or 30 years). At the end of your term, you renew into a new term with a new rate, while your amortization continues counting down (FCAC, 2024).

If you took a five-year fixed mortgage in 2021 with a 25-year amortization, your 2026 renewal will be for the remaining 20 years of amortization at whatever rate you negotiate or accept. The payment calculation uses the new rate, the remaining amortization, and the principal balance you still owe.

How the Payment Calculation Works at Renewal

Your new payment is determined by a standard mortgage payment formula covered in foundational finance texts such as Principles of Finance, which takes your remaining loan balance, divides it across the remaining amortization period, and applies the new interest rate.

The three variables are:

  1. Remaining principal balance - the amount you still owe after your term. If you started with a C$400,000 mortgage and paid it down to C$350,000, that C$350,000 is your renewal balance.

  2. Remaining amortization - the years left to pay off the loan. A 25-year amortization that has run for five years has 20 years remaining at renewal.

  3. New interest rate - the rate your lender offers (or the rate you negotiate with a new lender) for your renewal term. This rate reflects current Bank of Canada policy, bond yields, and lender competition at the time you renew (Bank of Canada, 2026).

Worked Example: Five-Year Fixed Renewal in 2026

Assume you took a five-year fixed mortgage in 2021:

  • Original loan: C$400,000
  • Original rate: 2.50% fixed
  • Original amortization: 25 years
  • Monthly payment in 2021: approximately C$1,796

After five years of payments, your principal balance has dropped to roughly C$350,000 and your remaining amortization is 20 years.

Scenario A: Renewing at 4.50% fixed

At renewal with a 4.50% rate over 20 years on C$350,000, your monthly payment rises to approximately C$2,215, an increase of C$419 per month (23% higher).

Scenario B: Renewing at 3.25% fixed

If rates have moderated and you renew at 3.25%, your monthly payment becomes approximately C$2,015, still an increase of C$219 per month but considerably lower than Scenario A.

The difference in payment between these two renewal rates (4.50% versus 3.25%) is C$200 per month, or C$2,400 per year, entirely due to the 1.25 percentage point rate difference.

Factors That Influence Your Renewal Payment Change

Rate environment at renewal. If rates are higher than your expiring term, your payment increases; if rates have fallen, your payment may drop or rise only modestly. In 2026, many homeowners renewing after locking in historically low rates in 2020 or 2021 face higher renewal rates (CMHC, 2024).

Read also: Should You Renew Your Mortgage for 1 or 5 Years in a Falling Rate Environment in Canada

Extra payments during your term. Prepayments reduce your principal balance, which lowers your renewal balance and therefore your new payment. A borrower who paid an extra C$10,000 against principal during the term renews on a smaller balance.

Shorter remaining amortization. As your amortization counts down, each payment covers a larger share of principal. Renewing on a shorter remaining amortization (15 years versus 20 years) with the same rate means higher payments because you are compressing the repayment into fewer years.

Payment frequency. Switching from monthly to accelerated bi-weekly payments at renewal does not change your contractual monthly equivalent, but it results in an extra monthly payment per year, paying down your mortgage faster.

Renewal Options and Their Payment Implications

You have three main paths at renewal:

Renew with your current lender. Your lender will send a renewal statement 30 to 120 days before your term ends, showing the rate they offer. You can accept it, negotiate a better rate, or walk away without penalty because your mortgage is open at maturity.

Switch to a new lender. Switching often requires re-qualifying under the mortgage stress test (you must qualify at the greater of your contract rate plus 2% or the OSFI qualifying rate), and you will pay for a new appraisal and legal fees. Switching makes sense if the rate savings outweigh the costs.

Refinance to access equity or adjust your amortization. Refinancing (re-borrowing against your equity or extending your amortization) restarts the calculation with a new principal amount and potentially a new amortization, changing your payment significantly. This option is distinct from a simple renewal and involves qualifying, appraisal, and legal work.

Common Renewal Scenarios in 2026

Renewing after a variable-rate term. Variable-rate mortgages adjust during the term as the prime rate moves. At renewal, you lock in a new fixed or variable rate; your payment changes based on the new rate structure and your balance at that moment.

Renewing with a lower balance due to lump-sum payments. A borrower who contributed C$20,000 in prepayments during the term renews on a principal balance C$20,000 lower than originally scheduled, reducing the payment even if rates have risen.

Renewing into a shorter term. Choosing a three-year term instead of five-year does not change the amortization or payment calculation at renewal, but it does mean you will renew again sooner, exposing you to rate changes in three years rather than five.

What to Do Before Your Renewal Date

Start shopping for rates 120 days before your term matures. Compare your lender’s renewal offer against rates from mortgage brokers and competing lenders. Calculate the payment under different rate scenarios using the remaining balance and amortization your lender provides in the renewal statement.

Understand your prepayment privileges in the final months of your term. Many closed mortgages allow annual prepayments of 10% to 20% of the original principal without penalty; using this privilege before renewal lowers your renewal balance and your new payment.

If you plan to switch lenders, confirm you meet the stress test and budget for appraisal and legal costs (typically C$500 to C$1,000 combined). The rate difference must justify these expenses.

Conclusion

Your mortgage payment at renewal is recalculated based on your remaining balance, remaining amortization, and the new interest rate you accept. In a rising-rate environment, expect a payment increase; in a stable or falling-rate environment, the increase may be modest or your payment may even decline. Start comparing renewal offers early, know your remaining balance and amortization, and negotiate or switch lenders if the rate savings justify the effort. Provincial mortgage rules and lender policies vary; confirm renewal terms and prepayment options with your financial institution and consult a licensed mortgage broker for your specific circumstances.

Disclaimer: This article provides general educational information about mortgage renewals and payment calculations in Canada. It is not personalized financial, lending, legal, or tax advice, and not an offer or commitment to lend. Mortgage products, renewal terms, prepayment privileges, and qualification requirements vary by lender, province, and individual circumstances. Interest rates change frequently; verify current rates and terms with a licensed mortgage professional before making renewal decisions. For advice tailored to your situation, consult a licensed mortgage broker or your financial institution.