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Fixed vs variable: build your scenario

Nobody knows exactly where rates go. So test it. Set where you think prime moves over the next five years, and see whether a fixed or variable mortgage would leave you better off, and by how much.

Fixed or variable? It depends on where rates go

A fixed mortgage locks your rate for the term, certainty, but usually at a higher starting rate. A variable mortgage moves with your lender's prime rate: it often starts lower, but your rate, and sometimes your payment, changes as prime does. The right choice comes down to what happens to rates over your term, and how much payment movement you can stomach.

How to use this tool

This is a scenario builder, not a crystal ball. Put in your own view of where prime is heading, cuts, holds, or hikes, and the calculator runs both mortgages month by month over five years, then shows which one paid less interest and left you with a smaller balance. Try a few scenarios: rates falling, rates flat, rates climbing. It quickly shows how much risk you are really taking with variable, and how much you would save if your view is right.

Want to pay it off faster? See how much sooner you could be mortgage-free with the prepayment calculator, or check your payment on a purchase with the mortgage payment calculator.

Estimates only, using Canadian semi-annual compounding. Real terms, caps and lender rules vary, which is exactly what we help you navigate.

Good to know

Fixed vs variable FAQs

Is fixed or variable better right now?
It depends entirely on where prime goes over your term and your comfort with payment changes. This tool lets you test your own view. Historically variable has often won, but it carries more risk. We help you weigh both against your situation.
Does my payment change on a variable mortgage?
On many variable mortgages, yes, when prime changes, your payment is recalculated. Some lenders keep the payment fixed and adjust how much goes to principal instead. This calculator models an adjusting payment, the more common case.
What is the discount off prime?
Lenders offer variable rates as "prime minus" a discount, for example prime minus 1.00%. The bigger the discount, the better your variable rate. We shop lenders to get you the deepest discount available.
Can I switch from variable to fixed later?
Usually yes. Most variable mortgages let you convert to a fixed rate during the term. The rate you would get depends on the market at that time. It is a useful safety valve if rates start climbing.

Not sure which way to go?

We'll pressure-test fixed vs variable against your real plans and risk comfort, and find the sharpest rate either way, at no cost.

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