Built for Canadians, by Canadians.

Hi, I'm Desmond. Like a lot of Canadians, the pandemic lockdowns gave me time to seriously explore things I'd always put off — personal finance being one of them. I'd been interested in investing in financial securities and real estate for a while, and I kept running into the same problem: every mortgage calculator I could find was either built for Americans, or built by a bank that wanted to sell me something.

So I combined what I know from my career in digital marketing with what I'd been learning about Canadian mortgage math, and built MortgagePaymentCalc.ca as my first web application. It's a test run — and I'm genuinely curious what you think. If you have feedback, found a bug, or just want to say hi, the contact page is always open.

Canadian mortgages compound semi-annually under the federal Interest Act. American calculators compound monthly. On a $600,000 mortgage at 5% over 25 years, that's about $15–$20 a month difference — small, but real money over a lifetime.

I model CMHC insurance correctly across all down-payment tiers, including the post-December 2024 $1.5M cap and the 30-year amortization rule for first-time buyers of newly built homes. Every province's land transfer tax — including Toronto's double tax and all first-time buyer rebates — is calculated to the dollar.

Free, no signup. No paywall, no upsell. If you can read it, you can use it.

No data harvesting. I don't ask for your email. The numbers you type stay in your browser unless you share them via a link.

Independent. The site is supported by voluntary contributions — not by referring you to a specific lender or broker. The numbers aren't shaped by who's paying me this week.

Buying a home is the largest financial commitment most people will ever make. I treat every formula as something that has to match a bank's spreadsheet to the dollar — because in real life, it does.

If you spot a calculation that looks wrong, please tell me. I'll investigate and fix it.