Fixed vs. Variable Mortgages: Which One Should You Choose and Why?

When you’re buying a home, one of the biggest decisions, besides actually qualifying, is whether to get a fixed-rate or variable-rate mortgage. It’s not a choice that should keep you up at night—but it’s worth understanding before you sign on the dotted line.

The truth? There’s no single “best” choice for everyone. It depends on your situation, your comfort level with uncertainty, and yes—where inflation is headed over the next year.

Fixed-rate mortgages are straightforward: you lock in an interest rate, and it stays the same for your entire mortgage term (usually 5 years). Your monthly payment never changes, no matter what happens in the economy.

Variable-rate mortgages start with a lower interest rate, but can go up or down based on what the Bank of Canada does with its benchmark rate. Your monthly payment might change, sometimes dramatically or slowly over a period of time.

Think of it like this: fixed is predictable but usually costs more upfront. Variable is cheaper to start but comes with uncertainty.

The Pros:

• Budget certainty: You know exactly what your mortgage payment will be for the entire term
• Peace of mind: You won’t wake up to news that your payment is increasing $200/month
• Protection against rate hikes: If rates shoot up, you’re protected

The Cons:

• Higher initial rate: Fixed rates are typically 0.5–1.0% higher than variable rates
• Less savings if rates drop: You’re locked in, even if rates plummet
• Prepayment penalties: Breaking a fixed-rate mortgage early can be expensive

Ask yourself these questions:

• Can I afford a higher payment? If your budget is tight, the lower starting payment of a variable mortgage might tempt you, but you could be in trouble if rates rise. Fixed protects you here.
• Will a payment change stress me out? If losing sleep over uncertainty isn’t worth any savings, fixed is your answer.
• Am I planning to stay in this home long-term? If you’re in for 7+ years, fixed locks in stability over the long haul.
• How’s my financial cushion? If you have savings and can handle payment fluctuations, variable might work. If you’re stretched thin, fixed is safer.
• DO I QUALIFY FOR A MORTGAGE ON THE FIXED RATE? For many, the lower the rate, the easier it is to qualify for a mortgage. And in some cases, potential borrowers won’t qualify using the higher fixed rate, leaving them to either abandon the mission to qualify or take the vaiable rate option (pondering whether they can handle the uncertainty of a variable rate) Remember, borrowers in Canada qualify at the interest rate + 2% stress test to ensure they can handle fluctuations (B20 stress test – for more info on this requirement, click here.

The Pros:

• Lower starting rate: You save 0.5–1.0% right out of the gate
• Potential long-term savings: If rates stay low or drop, you come out ahead
• More flexibility: Many variable mortgages have fewer prepayment penalties

The Cons:

• Payment uncertainty: Your mortgage payment can increase (sometimes significantly)
• Rate risk: If the Bank of Canada hikes rates aggressively, you could be paying thousands more per year
• Stress and complexity: You’re constantly wondering what rates will do next

Ask yourself these questions:

• Can I handle a payment increase? If rates rose 1–2%, could your budget absorb an extra $300–500/month without breaking?
• Am I confident about inflation staying calm? This is the big one—and we’ll dig into it next.
• Do I have an exit strategy? Could you convert to a fixed rate if variable payments get out of hand?
• How much could I save? Run the numbers. On a $500,000 mortgage, a 0.75% difference saves you roughly $3,750 in year one. Is that worth the risk to you?
• How’s my financial cushion? If you have savings and can pre-pay your mortgage at the higher rate based on fixed, variable could be a very smart choice.

This is where your decision gets grounded. The Bank of Canada sets interest rates based on inflation. When inflation is high, they raise rates to cool things down. When inflation is low, they cut rates to stimulate borrowing and spending.

So the question is: Where is inflation headed over the next year?

Recent research from Canadian policy experts shows that over the next 1-year horizon, the Bank of Canada’s 2% inflation target is the most reliable predictor of where inflation will actually land.

Here’s what that means: Even if inflation is currently running hotter or colder than 2%, it tends to drift back toward that target over a 12-month period. The Bank of Canada has a strong track record of achieving this.

If you’re leaning toward a variable mortgage, keep an eye on these signals:

• Inflation is running significantly above the 2% target and climbing
• Job markets are tight (companies are scrambling to hire, which puts wage pressure on inflation)
• Real estate, gas, or other key costs are higher than average or start spiking unexpectedly
• News reports that the Bank of Canada is “concerned” about persistent inflation

• Inflation is already cooling and trending toward 2%
• Job growth is slowing
• Consumer spending is weakening
• The Bank of Canada is signaling a “pause” in rate changes

Bottom line for the next 12 months: If inflation is stable or trending downward, a variable mortgage is more attractive. If inflation is hot and climbing, locking in a fixed rate protects you from the pain ahead.

Let’s say you’re borrowing $500,000 with a 25-year amortization and comparing rates:

This looks good for variable—you’re saving $184/month off the bat. But here’s the critical question: What if rates jump?

Let’s say variable rates climb steadily, and after 3 years your rate jumps from 4.00% to 5.25% (a 1.25% increase). On your remaining mortgage balance, your monthly payment would spike to approximately $3,204/month—a $565 per month increase.

Over a single year at that new rate, you’d be paying an extra $6,780 compared to what you started with.

Meanwhile, your friend who locked in the fixed 4.64% rate? Still paying $2,823/month. No surprises. No stress.

The reality: Variable mortgages are attractive when rates are stable or falling. But when the Bank of Canada tightens (raises rates), those monthly payments can jump dramatically—and it can happen faster than many borrowers expect.

Here’s the honest truth: No one can predict the future perfectly. Even the Bank of Canada gets it wrong sometimes.

Your best move is to figure out which scenario keeps you up at night less:

• You want certainty and can afford a slightly higher rate
• Inflation looks sticky (not dropping toward 2% soon)
• You’re financially tight and can’t absorb payment increases
• You plan to stay in the home for 7+ years

• You can comfortably handle a $300–500/month payment increase
• You believe inflation will trend toward the 2% target over the next 12 months
• You have a healthy financial cushion
• You’re comfortable with the risk-reward trade-off

Your mortgage is one of the biggest financial decisions you’ll ever make. While inflation and interest rates matter, your personal comfort level matters more.

Don’t be talked into a variable rate just because it saves a few hundred dollars upfront. And also don’t lock into a fixed rate out of pure fear if you could genuinely handle—and benefit from—the flexibility of variable.

Take a moment, answer those questions we outlined, check where inflation stands today, and make the choice that lets you sleep at night.

Because at the end of the day, the best mortgage is the one you can afford and that fits your life.

Not sure where inflation is headed in your region or how it applies to your specific situation? Book a call with me today and I’ll help you model both scenarios with real numbers.