A fixed mortgage may be the better fit if predictable payments and protection from rising rates matter most to you. A variable mortgage may be worth considering if you can comfortably handle rate changes and want the opportunity to benefit if rates fall.
Neither is automatically better. The right choice depends on your budget, plans, mortgage terms and ability to manage an unexpected rate change.
Quick answer: Choose based on the risk you can manage, not on a rate prediction alone. Fixed transfers short-term rate risk to the lender. Variable leaves more of that risk—and the possible benefit—with you.
| Feature | Fixed Mortgage | Variable Mortgage |
|---|---|---|
| Interest rate | Locked for the term | Changes with lender prime |
| Budget certainty | Usually high | Depends on product design |
| If rates fall | Your rate normally stays unchanged | Your borrowing cost normally falls |
| If rates rise | Protected until renewal | Your borrowing cost rises |
| Early-break penalty | Often the greater of three months’ interest or IRD | Often three months’ interest |
These are common structures, not universal rules. Penalties, conversion options, prepayment privileges and payment features vary by lender and mortgage contract.
With a fixed-rate mortgage, your interest rate is set for the term. Your regular principal-and-interest payment normally stays the same, making budgeting easier. Market rates can move without changing your contract rate.
Fixed mortgages can be expensive to break before maturity. An interest rate differential, or IRD, can be much larger than three months’ interest when rates have fallen. The lender’s formula matters, so the lowest fixed rate is not always the lowest-cost mortgage if your plans change.
A variable mortgage is usually priced as the lender’s prime rate plus or minus a set amount. For example, a contract might be described as prime minus a discount. If the lender changes its prime rate, your mortgage rate changes too.
Not every variable mortgage works the same way. An adjustable payment generally moves with prime. With some fixed-payment variable mortgages, the payment may stay level while the amounts going to interest and principal change. If rates rise enough, trigger provisions may require a higher payment.
Important: Before choosing variable, ask whether the payment changes with prime, what happens to your amortization if rates rise, whether the mortgage has a trigger rate, and what rate would apply if you converted to fixed.
Recent borrower behaviour has shifted. CMHC reported in September 2026 that more households have been choosing variable-rate and shorter-term mortgages. CMHC also cautioned that these choices increase a household’s exposure to future interest-rate changes.
That does not prove variable is better. Borrowers are weighing possible savings if rates fall against the risk that rates stay elevated or rise.
No. Variable mortgage rates are closely connected to lender prime rates, which are strongly influenced by the Bank of Canada’s policy rate. When the Bank of Canada changes its policy rate, lenders often adjust prime and variable mortgage rates soon afterward.
Fixed rates are influenced more by the bond market and lender funding costs. As the Bank of Canada explains, several market factors feed into a mortgage rate. A policy-rate cut does not guarantee fixed rates will fall at the same time—or by the same amount.
Rates could move lower if inflation eases or the economy weakens. They could remain higher—or rise—if inflation persists. Oil costs, geopolitical disruptions, tariffs or a weaker Canadian dollar can add inflation pressure.
No one knows which forces will dominate. Do not choose variable only because you expect rates to fall. Test whether your finances still work if that forecast is wrong.
A fixed mortgage may suit you if:
A variable mortgage may be worth considering if:
Choosing fixed also means deciding how long to lock in. A 3-year term provides an earlier opportunity to renegotiate; a 5-year term provides two more years of certainty.
Neither is better for everyone. Fixed supports certainty. Variable may suit borrowers who can handle rate changes and accept the risk in exchange for possible savings if rates fall.
It often will if your lender reduces its prime rate, because variable mortgages are generally priced from prime. Confirm the wording and adjustment process in your mortgage contract.
No. Fixed rates are influenced more directly by bond yields, funding costs, competition and lender pricing. Bank of Canada decisions can affect market expectations, but fixed rates do not have to move with the policy rate.
Many lenders allow a variable mortgage to be converted to a fixed term, but the available fixed rate and required term are determined at the time of conversion. Review those rules before relying on conversion as your backup plan.
Variable mortgages often use a penalty of three months’ interest, while fixed mortgages may use the greater of three months’ interest or IRD. Contracts differ, so compare the actual penalty wording and other fees before deciding.
You can also review different mortgage types, learn what to consider when renewing your Ontario mortgage, or understand what is involved in transferring your mortgage to another lender.
Roger Carroll is an Ontario mortgage broker with Real Mortgage Associates Inc. He helps homebuyers and homeowners compare lender options, understand mortgage risk and choose a mortgage structure that fits their budget and plans.
Ontario Mortgage Broker Licence: M08003074
The best mortgage is not necessarily the one with the lowest rate today. It is the mortgage whose payment, flexibility, penalty and rate risk fit what you are likely to need.
If you want a second look before choosing fixed or variable, reach out for a mortgage review. We can compare the numbers and the trade-offs so you can make the decision with a clear view of both.