3-Year vs 5-Year Fixed Mortgage: Which One Saves You More?

I've been advising on mortgages for over a decade, and this is by far the most common question I get. The short answer? For most people, a 3-year fixed beats a 5-year fixed. But it's not that simple.

Let me walk you through what I've learned from analyzing hundreds of rate sheets, talking to lenders, and—most importantly—watching clients get burned by decisions they thought were safe.

Rate Comparison Table (Current Market)

Here’s a snapshot of typical rates I’ve seen this week from major Canadian banks (as of my last check – rates move constantly, so verify with your broker).

Note: Rates are for uninsured mortgages (20%+ down). Insured rates are often 0.2–0.5% lower.

At first glance, the 5-year fixed looks only slightly higher. But the real cost difference isn’t the rate—it’s the penalty if you break early. And that’s where people get crushed.

The Break Penalty Trap Most Borrowers Miss

Here’s a non-obvious truth: with a 5-year fixed, lenders calculate the penalty using the Interest Rate Differential (IRD)—a formula that often adds thousands in costs. I’ve seen clients pay $8,000 to break a 5-year fixed after only two years because they needed to sell for a job relocation.

On a 3-year fixed, most lenders charge only 3 months of interest as the penalty. That’s typically $1,500–$3,000 on a $300k mortgage. The difference is staggering.

My rule of thumb: if there’s more than a 30% chance you’ll move, refinance, or sell within the term, go with the 3-year. The slightly higher rate (if any) is insurance against a massive penalty.

A Client’s Story That Changed My View

I once worked with a young couple—let’s call them Sarah and Mike. They took a 5-year fixed at 3.29% back in 2021 (rates were low). Two years later, they got a dream job offer in another province. The penalty to break: $9,400. They had to pay it out of pocket because they didn’t have the cash. They ended up rolling it into their new mortgage, eating into their equity.

If they’d chosen a 3-year fixed, the penalty would have been about $2,100. That $7,300 difference could have gone to furniture or a vacation. Instead, it went to the bank.

Since then, I’ve been reluctant to recommend 5-year fixed unless the borrower has zero plans to move and a stable job. Even then, I push them to read the fine print on the penalty clause.

When a 3-Year Fixed Makes Sense

Here’s my checklist for choosing the 3-year:

• You might move within 5 years: Whether it’s upgrading to a bigger home, relocating for work, or downsizing, life changes fast.
• You think rates will drop: If the Bank of Canada is expected to cut rates, a 3-year lets you renew sooner at lower rates.
• You’re a first-time buyer: Your financial situation is less predictable. Flexibility is key.
• You want lower penalty risk: As I said, 3-month interest vs IRD is a huge difference.

When a 5-Year Fixed Wins

Conversely, I still recommend the 5-year fixed in these scenarios:

• You absolutely need payment certainty: If a rate increase would strain your budget, locking in for longer gives peace of mind.
• You plan to stay put for 7+ years: Not just 5, because even with a 5-year term, you might want to renew. But if you’re sure you won’t move, the extra stability can be worth the small rate premium.
• You’re buying a “forever home”: Some homeowners have no intention of moving. For them, the 5-year fixed is fine—just make sure you have an emergency fund to cover potential penalties if life throws a curveball.

One more thing: I’ve noticed that 5-year fixed mortgages often come with higher commissions for brokers. Some brokers push them for that reason. Always ask: “What’s your compensation difference between the 3-year and 5-year?” If they hesitate, get a second opinion.

Frequently Asked Questions

This article is based on my experience as a mortgage advisor and has been fact-checked against current lender policies. Always consult a licensed broker for your specific situation.