Variable Rate vs Fixed Rate Mortgage in Canada: Which One Is Right for You?

You’ve saved your down payment, you’re pre-approved, and now your mortgage broker is asking whether you want a fixed or variable rate. It sounds like a simple question until you realize that this one decision could mean thousands of dollars of difference over your mortgage term. Most Canadians default to fixed because it feels safer, but that’s not always the right call — and understanding what you’re actually choosing between makes it a much easier decision.

Quick answer: A fixed rate mortgage locks your interest rate for the full term (usually 5 years), so your payment never changes. A variable rate mortgage moves with Canada’s prime rate, meaning your payment or amortization can shift when the Bank of Canada raises or cuts rates. Fixed offers certainty; variable has historically offered lower rates but comes with more risk and can save — or cost — you significantly depending on when you borrow.

What Is a Fixed Rate Mortgage in Canada?

A fixed rate mortgage locks in your interest rate for the entire term of your mortgage, typically 2 to 5 years in Canada (with 5-year terms being the most common). No matter what the Bank of Canada does with interest rates during that period, your rate stays exactly the same — and so does your monthly payment.

This predictability is the main draw. If you’re budgeting tightly or you know that a rate spike would genuinely put stress on your household, fixed gives you peace of mind. You sign the papers, you know your number, and you don’t think about it again until renewal.

The trade-off is that fixed rates tend to be priced higher than variable rates at the time you sign, because the lender is absorbing the risk of rate changes on your behalf. You’re essentially paying a premium for certainty. The other major trade-off: breaking a fixed rate mortgage early comes with a penalty that’s usually the greater of three months’ interest or the Interest Rate Differential (IRD) — and that IRD can easily run into the thousands or even tens of thousands of dollars depending on how much rates have moved.

What Is a Variable Rate Mortgage in Canada?

A variable rate mortgage is tied to your lender’s prime rate, which itself moves in response to the Bank of Canada’s overnight rate decisions. When the Bank of Canada raises rates, your variable rate goes up. When it cuts, your rate comes down. This can happen multiple times a year.

In Canada, variable rate mortgages work in two main ways. Some lenders keep your monthly payment the same but adjust how much of it goes to interest versus principal — so if rates rise, more of each payment is absorbed by interest and you pay down your mortgage slower. Other lenders actually change your payment amount directly when rates shift.

The case for variable: historically, over long stretches of time, Canadians who chose variable have often paid less total interest than those who chose fixed — though this is not guaranteed and the early 2020s rate-hike cycle reminded a lot of borrowers how quickly that can flip. Variable also comes with much lighter prepayment penalties: typically just three months’ interest if you need to break your mortgage early. That’s a significant advantage if you think you might sell or refinance before your term ends.

Quick tip: If you’re comparing a fixed and variable offer and the spread between them is less than 0.5%, the variable rate math becomes less compelling — you’re taking on rate risk for a smaller potential gain. A wider spread of 1% or more is where variable starts to make a clearer case.

How Do You Decide Between Fixed and Variable in Canada?

The right choice depends on three things: your financial cushion, how long you plan to stay in the home, and where rates are likely to go — though no one can predict that last one reliably.

Start with your financial cushion. If your budget is tight and a $200–$400 monthly increase in payments would genuinely hurt, fixed is probably the right call regardless of what the math says. Financial security has value that doesn’t show up in a spreadsheet. On the other hand, if you have a solid emergency fund and some buffer in your monthly cash flow, you’re better positioned to absorb rate movement and potentially benefit from variable.

Next, think about your timeline. Variable mortgages make the most sense if you’re confident you’ll stay for the full term — or if you think you might break the mortgage early (because the penalty is so much lower). Fixed makes more sense if you want to set it and forget it. Most Canadian mortgages are broken before the end of the term, either because of a move, a refinance, or a life change — and that’s when IRD penalties on fixed rates catch people off guard.

Finally, consider where rates are in the cycle. Borrowing variable when rates are already high and likely to fall can be a great deal. Borrowing variable when rates are at historic lows leaves you with nowhere to go but up. Your mortgage broker can help you look at rate trends, but be sceptical of anyone who tells you they know for certain where rates are headed.

What Happens at Renewal?

Canadian mortgages are not like US mortgages, where you can lock in a 30-year fixed rate. In Canada, you sign for a term — commonly 5 years — and then you renew. At renewal, you choose again: fixed or variable, and at whatever rates exist at that point.

This means the fixed vs. variable decision is not permanent. You could start fixed for your first term while you’re getting settled, and switch to variable at renewal if rates look attractive. You could also do the opposite. The key is not to treat the first choice as something you’re locked into forever — it’s a 5-year decision, not a 25-year one.

When renewal time comes, don’t just accept the rate your existing lender offers. Shopping your mortgage at renewal — through a broker or by comparing offers from Questrade Mortgages, nesto, or other digital lenders — can save you a meaningful amount. Lenders count on inertia at renewal; most Canadians don’t switch even when better rates are available.

Frequently Asked Questions

Is a variable or fixed rate mortgage better in Canada?

Neither is universally better — it depends on your timeline, risk tolerance, and where rates are in the cycle. Variable rates have historically trended lower than fixed over long periods, but the early 2020s rate hikes showed how quickly variable borrowers can feel pain. Fixed gives you certainty and predictability; variable gives you flexibility and potentially lower costs. Most financial advisors suggest going variable if you have financial cushion and your rate spread is meaningful.

What is the penalty for breaking a fixed rate mortgage in Canada?

Breaking a fixed rate mortgage early typically costs the greater of three months’ interest or the Interest Rate Differential (IRD). The IRD can be very large if rates have dropped significantly since you took out your mortgage, because the lender is calculating the income they’ll miss out on. Always ask your lender for a penalty estimate before breaking a fixed mortgage — surprises in this area can be expensive.

What is the penalty for breaking a variable rate mortgage in Canada?

Variable rate mortgages typically carry a penalty of just three months’ interest if broken early. This is significantly lower than what you’d face breaking a fixed mortgage mid-term, which is one reason variable mortgages appeal to people who aren’t certain they’ll stay in the home for the full term.

Does a variable rate mortgage change your monthly payment in Canada?

It depends on the lender. Some variable rate mortgages keep your payment the same but adjust how much goes to interest vs. principal — so if rates rise, you build equity more slowly. Others change your actual payment amount when rates move. Ask your lender specifically how their variable product works before signing.

How does the Bank of Canada affect my mortgage rate?

The Bank of Canada sets the overnight rate, which influences the prime rate that lenders use (prime is typically the overnight rate plus about 2.2%). Variable rate mortgages are priced as prime minus or plus a spread (e.g., prime minus 0.5%). Fixed rates are more influenced by bond yields and don’t move directly with Bank of Canada decisions, but they do trend in the same direction over time.

If you’re deep in the home-buying process, you’ll also want to read about how much you need for a down payment on a house in Canada, what CMHC mortgage insurance actually is, and whether renting or buying makes more sense right now.

Ready to stop reading and start practising? Finnav is a free guided money app for Canadian students and new grads. Daily 5-minute missions. No jargon. No spreadsheets.