Fixed vs. Variable Rate Mortgages in Canada: How to Choose in 2026
This is the question almost every Canadian first-time buyer wrestles with at the lender's desk: do I go fixed or variable?
You'll hear strong opinions in both directions. Your parents probably tell you to lock in for five years and sleep soundly. A finance blogger insists variable always wins over the long run. Your broker quotes you a fixed and a variable in the same breath and asks which you want, as if it's a coin flip.
It isn't a coin flip. It's a tradeoff between certainty and expected cost, and the right answer depends on your budget headroom, your timeline, and how you'd react if rates moved against you. Let's work through it properly.
What "Fixed" and "Variable" Actually Mean in Canada
A fixed-rate mortgage locks your interest rate for the entire term, usually one to five years (occasionally seven or ten). Your monthly payment is identical from day one of the term to the last day. The amount going to principal versus interest shifts over time, but the total payment never moves.
A variable-rate mortgage is tied to your lender's prime rate, which moves whenever the Bank of Canada changes its overnight rate. Canadian variables come in two flavours, and the difference matters more than most people realize:
- Adjustable-payment variable (true variable): When prime moves, your payment moves. If prime drops 0.25%, your payment drops. If prime climbs 0.25%, your payment climbs.
- Fixed-payment variable: Your payment stays the same, but the split between principal and interest changes. If rates rise, more of each payment goes to interest, less to principal. If rates rise far enough, you can hit your trigger rate — the point where your payment no longer covers the interest accruing — and the lender will require you to increase your payment or make a lump sum.
Most of the big banks default to fixed-payment variables. Most credit unions and monoline lenders offer adjustable-payment variables. Read your commitment letter carefully — these are very different products dressed in the same name.
The Headline Tradeoff
Fixed rates are higher when you sign, but you know exactly what you're paying for the next five years. Variable rates are usually lower at signing but can rise (or fall) over your term.
Historically, studies covering decades of Canadian mortgage data have shown variables outperformed fixeds the majority of the time. That data was largely collected during a long secular decline in interest rates. The 2022–2023 rate-hiking cycle was a reminder that "usually wins" is not "always wins." Variable holders who renewed in 2021 at sub-2% rates watched their effective borrowing costs more than double in eighteen months.
So the historical edge is real, but it isn't a guarantee. Treat it as one input, not a tiebreaker.
A Concrete Comparison
Let's run a $500,000 mortgage with a 25-year amortization over a 5-year term.
Scenario A — 5-year fixed at 4.79%
- Monthly payment: roughly $2,856
- Total paid over 5 years: about $171,360
- Mortgage balance at end of term: about $432,800
Scenario B — 5-year variable at 4.45% (prime minus 0.50%)
- Monthly payment at signing: roughly $2,758
- Difference vs. fixed: about $98/month, or $5,880 over 5 years
If the variable rate stays flat for the full five years, you save roughly $5,880 in payments and pay down marginally more principal. That's the best-case math.
Now flip it. Suppose prime climbs 1.50% over the next 18 months and stays there. Your variable rate is now 5.95%. Your payment (on an adjustable-payment variable) rises to about $3,184 — that's $328 more per month than the original fixed payment. Hold that for the rest of the term and you've spent roughly $11,000 more than the fixed alternative.
Neither outcome is a prediction. They're a range of plausible results, and the point is that the variable carries a wider distribution of outcomes than the fixed. You can model your own situation in the mortgage calculator — change the rate and watch the payment move in real time.
What Actually Drives the Decision
Forget the historical averages for a moment. Three things should drive your choice.
1. Budget Headroom
If a 2% increase in your interest rate would force you to cancel vacations, eat ramen for a year, or — worst case — miss payments, you don't have the budget headroom for a variable. Period. The "cheaper" rate isn't cheaper if it pushes you into financial stress.
A good gut check: take your contract rate and add 2%. Could you comfortably afford the resulting payment? If yes, you have the cushion to consider variable. If no, the fixed isn't an indulgence; it's risk management.
Use our affordability calculator to see what monthly payment you can genuinely sustain. If you're already at the upper edge of your GDS ratio, the fixed gives you certainty over the most important number in your budget.
2. Your Time Horizon
If you're confident you'll be in this home for the full five-year term, you have time for averages to work in your favour. If there's a real chance you'll sell or refinance in two or three years — a growing family, a possible job relocation, an upgrade plan — a fixed mortgage can become expensive to break.
Breaking a fixed mortgage early triggers an interest rate differential (IRD) penalty, which can be eye-watering at the big banks. Breaking a variable triggers a three-month interest penalty, which is almost always smaller. We dig into the math in detail in our prepayment penalty guide, and there's a quick estimator on the prepayment penalty calculator.
If flexibility matters more than the lowest possible rate, variable wins on the exit door alone.
3. Your Personality
This sounds soft, but it's the real reason most variable holders bail mid-term. If you're going to refresh the Bank of Canada announcement page every six weeks and lose sleep when prime ticks up, the "savings" from a variable will get clawed back in stress and in the temptation to convert mid-term at the worst possible moment.
Variables reward people who can ignore them. Fixeds reward people who want one number in their budget and want to stop thinking about it.
The Hybrid Option Most People Don't Consider
A convertible variable lets you switch from variable to fixed mid-term at your lender's then-current posted fixed rate, without paying a penalty. Almost all variable mortgages in Canada are convertible — it's a quiet feature most brokers don't mention upfront.
The catch: you convert at current fixed rates, not the rate you saw at signing. If you're trying to lock in because rates are climbing, fixed rates have already moved by the time you act. Conversions tend to happen at the worst moment, after the variable holder has already absorbed a few rate hikes and is locking in the panic.
The lesson isn't "don't convert." It's "build a personal rule before you sign." Something like: "I'll convert if prime rises 1.5% from signing and stays there for three months." A pre-committed rule beats panic conversion every time.
What About Shorter Terms?
If you find both fixed and variable unappealing — fixed feels too high, variable feels too risky — a shorter-term fixed (one, two, or three years) is a quiet third option.
A 3-year fixed often prices below the 5-year fixed and locks in a payment without committing you for five full years. It can be a sensible "wait and see" play if you genuinely believe rates will fall over your time horizon, with a built-in renewal window in three years to reassess.
The risk: at renewal, rates may be higher than they are today, not lower. There's no free lunch. But for buyers who'd be tempted to convert a variable anyway, a 3-year fixed gets you most of the way there with no conversion drama.
The Stress Test Applies to Both
Whichever you pick, you'll qualify under the same stress test: the higher of your contract rate plus 2%, or the Bank of Canada benchmark qualifying rate (5.25% as of the last update). The variable's lower contract rate does not give you more borrowing room. The math the bank uses is the same either way.
This is sometimes a surprise to buyers who assume the variable's lower payment translates into qualifying for a bigger mortgage. It doesn't. The stress test exists precisely to prevent that.
A Simple Decision Framework
Walk through these questions in order:
- Could you absorb a 2% rate increase without distress? If no, take the fixed.
- Is there a real chance you'll sell or refinance before the term ends? If yes, lean variable.
- Will you actually be able to ignore rate movements? If no, take the fixed.
- Are you confident enough in your decision that you won't second-guess it at every Bank of Canada announcement? If yes, take the one you believe in. If no, take the fixed.
You'll notice three of the four questions push toward fixed when the answer is uncertain. That's intentional. The variable's edge is real but slim, and a single moment of panic conversion can wipe it out. The fixed's downside is leaving some money on the table in a falling-rate environment. That's the smaller regret.
What This Means for First-Time Buyers Specifically
First-time buyers are usually stretching their budget to its edge. CMHC insurance is in play. Closing costs have already drained the savings buffer. The first year of homeownership tends to surprise people with maintenance and furniture spending.
In that context, payment certainty has real value. You can read more about the broader cost picture in our guide to the first-time buyer roadmap and our CMHC insurance explained breakdown.
If you have meaningful headroom — your housing costs are well below 32% of gross income, you have a real emergency fund, and your job is stable — variable is on the table. If you're at the affordability ceiling and signing for the maximum a lender will give you, the fixed is the calmer choice.
The Bottom Line
The historical data favours variable. The risk profile favours fixed. The right answer for you sits somewhere between those facts and your own situation.
Pick the product whose worst case you can live with. Run your scenario through the mortgage calculator, try the rate 2% higher than today, and ask yourself honestly: would I be fine? That answer matters more than any historical average.
And remember: this is a five-year decision, not a forty-year one. You can switch products at renewal. Whichever you pick, you'll have a chance to reassess with five more years of data and a clearer view of where rates are heading.