How does the math work?
Canadian fixed-rate mortgages compound twice a year by convention (Interest Act, RSC 1985, c. I-15, s. 6). Borrowers pay monthly. The calculator converts the offered annual rate to an effective monthly rate using ((1 + r/2)2/12) − 1, then runs a standard amortisation payment over the remaining years.
Market rate comparison uses 4.04 per cent as the late-April 2026 benchmark for broker-channel five-year fixed insured rates, captured from Ratehub's Big 5 Bank Mortgage Rates page (Best market rate row) on April 29, 2026. Actual market rates fluctuate weekly and vary by lender, file quality, insured status, and amortisation. The benchmark is a reference point, not a quote.
Nothing entered here is transmitted, logged, or saved. The arithmetic runs in your browser. Refresh the page and the inputs are gone.
What is the 8-item offer-completeness checklist?
Tick what's explicitly in your renewal letter. If your bank's offer doesn't say it, it doesn't exist. The checklist is RenewalRate.ca's framework for distinguishing a complete offer from a thin one at the same rate.
Before signing the renewal letter, see what other lenders would offer on the same file. Compare live rates from 30+ lenders →
A complete offer at market rate is the goal.
Your bank quoted one rate with limited terms. A licensed Canadian mortgage brokerage can put the same file against thirty or more lenders and run the offer-completeness checklist against each one. Homewise is an Ontario-based FSRA-licensed brokerage that handles the comparison through a short online application. Free to the borrower; the brokerage is paid by the lender on funded files.
Get a complete-offer comparison from Homewise →Affiliate link. RenewalRate.ca earns a commission if your mortgage funds through Homewise. This does not change the rate or fees offered to you. Homewise is an FSRA-licensed mortgage brokerage (licence #12984).
What do readers commonly ask?
Is the offered rate negotiable?
Almost always. The renewal letter is an opening offer. Federally regulated lenders are required to provide renewal disclosure at least 21 days before maturity under sections 45 and 46 of the Financial Consumer Protection Framework Regulations (SOR/2021-181), made under the Bank Act and in force since June 30, 2022. They are not required to lead with their best rate. Bringing a competing quote into the conversation typically moves the offer on competing-quote pressure, sometimes more on larger balances.
Does this calculator save my data?
No. All math runs in your browser. Nothing is sent to any server, saved to any database, or shared with any third party.
What's a collateral charge mortgage and why does it matter at renewal?
A collateral charge is registered against the property for an amount higher than the mortgage itself, allowing the lender to lend additional funds without re-registering. TD, Tangerine, and several credit unions register collateral charges by default. Switching to another lender at renewal requires a full discharge and re-registration. FCAC publishes that professional fees for a discharge typically run $400 to $2,500; a conventional charge can usually be transferred for free or at a minimal fee. The completeness checklist flags whether your offer mentions this.
Whose advice should you trust on this?
The calculator above runs Canadian semi-annual compounding correctly. What it cannot do is run your specific file through a real lender's underwriting and bring back a written rate commitment. For that step, Homewise (FSRA #12984) is a Canadian licensed brokerage that quotes multiple lenders online. RenewalRate.ca earns a commission on funded mortgages routed through Homewise.
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