Key Takeaway

A fixed-rate mortgage locks your interest rate for the entire term (typically 1 to 5 years), protecting you from rate increases but preventing you from benefiting if rates fall. A variable-rate mortgage fluctuates with the Bank of Canada’s policy rate, offering potentially lower starting rates and savings when rates drop, but exposing you to higher payments if rates rise. Your choice depends on your risk tolerance, budget flexibility, and rate outlook: fixed suits those who prioritize payment certainty, while variable appeals to those comfortable with rate fluctuations in exchange for potential savings.

Understanding Fixed-Rate Mortgages in Canada

A fixed-rate mortgage guarantees the same interest rate for your entire mortgage term. In Canada, the term is the period during which your mortgage contract conditions (including the rate) apply, typically ranging from 1 to 5 years, though terms up to 10 years are available. The term is distinct from the amortization period, which is the total time to pay off the mortgage (commonly 25 or 30 years).

With a fixed rate, your payment amount stays the same throughout the term. If you lock in at 4.5 per cent for a five-year term, that rate remains unchanged regardless of what happens to the Bank of Canada’s policy rate or broader market conditions. At the end of the term, you renew your mortgage, at which point you can negotiate a new rate and choose fixed or variable again.

Advantages of Fixed-Rate Mortgages

Payment certainty and budgeting ease. You know exactly what your mortgage payment will be every month for the duration of the term, making it easier to plan household finances and avoid surprises. This stability is especially valuable if you have a tight budget or limited savings to absorb payment increases.

Protection from rising rates. If interest rates increase during your term, your rate and payment remain locked. In a rising-rate environment, this protection can save you thousands of dollars compared to a variable-rate mortgage.

Simplicity. Fixed rates are straightforward. You do not need to monitor the Bank of Canada’s rate announcements or worry about payment fluctuations.

Disadvantages of Fixed-Rate Mortgages

Higher starting rates. Fixed rates are typically higher than variable rates at the time you sign your mortgage. You pay a premium for the certainty and protection that a fixed rate provides.

No benefit from falling rates. If the Bank of Canada lowers its policy rate during your term, your fixed rate stays the same. You will not see lower payments unless you break your mortgage and refinance, which usually triggers a prepayment penalty calculated using the interest rate differential (IRD), a formula that can result in substantial costs.

Higher prepayment penalties. Breaking a fixed-rate mortgage before the end of the term generally results in a penalty equal to the greater of three months’ interest or the IRD. The IRD can be much larger, particularly if rates have fallen since you signed your mortgage.

Understanding Variable-Rate Mortgages in Canada

A variable-rate mortgage has an interest rate that changes in response to the lender’s prime rate, which in turn moves with the Bank of Canada’s policy interest rate. When the Bank of Canada raises or lowers its overnight rate, most lenders adjust their prime rate within days, and your mortgage rate (and often your payment) adjusts accordingly.

Variable-rate mortgages in Canada typically come in two structures. With an adjustable-rate mortgage, your payment amount changes when the rate changes: if rates rise, your payment increases; if rates fall, your payment decreases. With a fixed-payment variable-rate mortgage, your payment stays the same, but the proportion going toward interest versus principal shifts: rising rates mean more of your payment covers interest and less pays down the principal, while falling rates have the opposite effect. If rates rise sharply, you may reach a trigger point where your payment no longer covers the interest, requiring a payment adjustment.

Advantages of Variable-Rate Mortgages

Lower starting rates. Variable rates are usually lower than fixed rates at the outset. According to the Financial Consumer Agency of Canada, borrowers historically have paid less interest over time with variable rates than with fixed rates, though this depends on the rate environment (FCAC, 2026).

Benefit from falling rates. If the Bank of Canada cuts its policy rate, your mortgage rate drops too, lowering your interest costs and potentially your payment. You gain immediate savings without needing to refinance.

Lower prepayment penalties. Breaking a variable-rate mortgage typically incurs a penalty of three months’ interest, which is often much less than the IRD penalty on a fixed-rate mortgage. This flexibility can be valuable if you expect to sell your home, refinance, or pay off the mortgage early.

Disadvantages of Variable-Rate Mortgages

Payment uncertainty. Your rate (and possibly your payment) can rise if the Bank of Canada increases its policy rate. This unpredictability makes budgeting more challenging and can strain your finances if rates climb significantly.

Risk of higher costs. In a rising-rate environment, you may end up paying more interest over the term than you would have with a fixed rate. If rates rise sharply and stay elevated, the initial savings from a lower starting rate can disappear.

Requires monitoring. You need to stay aware of rate trends and Bank of Canada announcements. If you have a fixed-payment variable mortgage, you must watch for trigger points that could force a payment increase.

Fixed vs Variable: Summary Comparison

FeatureFixed-Rate MortgageVariable-Rate Mortgage
Interest rateLocked for the full termFluctuates with the prime rate
Payment stabilitySame payment every monthPayment may change (adjustable) or principal/interest mix shifts (fixed-payment)
Starting rateTypically higherTypically lower
Protection from rate increasesYes, fully protectedNo, you pay more if rates rise
Benefit from rate decreasesNo, rate stays the sameYes, rate and interest costs drop
Prepayment penaltyGreater of 3 months’ interest or IRD (often high)3 months’ interest (usually lower)
Budgeting easeVery easy, predictableHarder, requires flexibility
Best forRisk-averse borrowers, tight budgets, rising-rate outlookRate-optimistic borrowers, flexible budgets, falling or stable-rate outlook

Who Should Choose a Fixed-Rate Mortgage

A fixed-rate mortgage suits you if:

  • You value payment certainty above all. You want to know your exact monthly payment and avoid the stress of fluctuating costs.
  • Your budget has little room for increases. If a payment jump of even a few hundred dollars would strain your finances, the protection of a fixed rate is worth the higher starting cost.
  • You expect interest rates to rise. If you believe the Bank of Canada will raise its policy rate during your term, locking in a fixed rate now can shield you from higher costs later.
  • You prefer simplicity and peace of mind. You do not want to track rate trends or worry about market conditions affecting your mortgage.

Fixed rates are especially popular among first-time home buyers, single-income households, and anyone with limited savings or financial flexibility.

Who Should Choose a Variable-Rate Mortgage

A variable-rate mortgage may be the better choice if:

  • You have budget flexibility. You can absorb payment increases if rates rise, or you have an emergency fund to cushion the impact.
  • You expect rates to fall or stay stable. If you believe the Bank of Canada will cut rates or hold them steady, a variable rate lets you capitalize on lower costs without refinancing.
  • You want to minimize interest costs over time. Historical data suggests that variable-rate borrowers often pay less interest in the long run, though past performance does not guarantee future results.
  • You may sell, refinance, or pay off the mortgage early. The lower prepayment penalty on a variable-rate mortgage gives you more flexibility to change course without facing steep IRD charges.

Variable rates appeal to financially savvy borrowers, those with stable incomes and cash reserves, and anyone comfortable with calculated risk in exchange for potential savings.

Key Factors to Consider When Deciding

Current Rate Environment and Bank of Canada Policy

The Bank of Canada sets the overnight policy rate, which influences all mortgage rates. Review the Bank’s recent announcements and economic outlook to gauge the direction of rates (Bank of Canada, 2026). If inflation is high and the Bank is signaling more rate increases, a fixed rate may offer better protection. If inflation is cooling and rate cuts are expected, a variable rate may deliver savings.

Your Financial Cushion and Risk Tolerance

Ask yourself how you would manage if your mortgage payment increased by 10, 20, or 30 per cent. If that scenario would force you to cut essential expenses or tap into savings you cannot afford to lose, a fixed rate is safer. If you have a healthy emergency fund and discretionary income, a variable rate is more viable.

The Mortgage Stress Test

All federally regulated lenders must qualify you at the higher of your contract rate plus 2 percentage points or 5.25 per cent (the OSFI B-20 stress test). This ensures you can handle payment increases. If you are borrowing near the top of your approval amount, a fixed rate reduces the risk that rising rates will push you into financial difficulty.

Your Time Horizon and Plans

If you plan to sell your home or refinance within a few years, the lower prepayment penalty on a variable-rate mortgage can save you significant money. If you intend to stay put and keep the mortgage for the full term, the choice hinges more on rate outlook and budget tolerance.

Making Your Decision

There is no universally correct answer to the fixed versus variable question. The right choice depends on your personal circumstances, financial resilience, and rate expectations. Many borrowers choose fixed rates for the certainty and simplicity, especially in uncertain economic times or when starting out as homeowners. Others opt for variable rates to take advantage of lower starting costs and the potential for further savings if rates decline.

You can also split the difference by dividing your mortgage between fixed and variable portions, though not all lenders offer this option. Consult a licensed mortgage broker or your financial institution to model scenarios based on current rates and your budget.

Remember that mortgage rates and product availability vary by lender and province. Rates can change daily. The information provided here is general educational guidance, not personalized financial or lending advice, and not an offer or commitment to lend. Always verify current rates, terms, and qualification requirements with a licensed mortgage professional before making your decision.

At the end of your mortgage term, you will renew and can reassess your choice. If you start with a fixed rate and rates fall, you can switch to variable at renewal. If you begin with variable and rates rise, you can lock in a fixed rate when the term ends. The mortgage landscape in Canada is flexible: your first choice does not have to be your last.