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How Much Could Your Variable Rate Rise? A Look Back at History

March 16, 2021
6 mins
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As fixed mortgage rates continue their climb, borrowers will increasingly be tempted by the allure of cheaper variable rates.

Floating rates are near rock-bottom at the moment but they'll eventually head higher. The questions are, when and how high?

For context, the lowest nationally available uninsured 5-year fixed is currently 1.79%. Meanwhile, you can fetch an uninsured 5-year variable for 50 basis points less, or 1.29%.

But if the economic recovery accelerates as expected, the Bank of Canada will embark on its next rate-hike cycle, possibly as early as next year. If that happens and you're a borrower, where should you place your bet: on fixed or variable?

History provides some clues

The past is by no means a reliable guide to future interest rates, but it can at least give us a rough sense for what’s possible.

Here’s a quick look at how much the BoC has raised the overnight target rate over the past four rate-hike cycles (the overnight rate directly impacts prime rate, upon which variable rates are based):

2017 to 2020: 125 bps (0.50% to 1.75%)

2010 to 2010: 75 bps (0.25% to 1.00%)

2004 to 2007: 250 bps (2.00% to 4.50%)

2002 to 2003: 125 bps (2.00% to 3.25%)

Average rate increase: 144 bps.

It's worth noting that prior rate cycles in the 1990s saw bigger rate increases (275 to 400 bps), but those occurred before the Bank of Canada's inflation targeting anchored inflation expectations to roughly 2%.

Fixed vs. variable: the math

Let’s run a hypothetical scenario to show how a variable mortgage would fare against a fixed if rates rose 150 bps over the course of five years. That’s six 25-bps rate increases spread out as follows: two hikes in late 2022, followed by two more each in mid 2023 and early 2024.

We'll assume a 25-year amortization and a $300,000 mortgage—about the average mortgage balance as tracked by TransUnion.

5-year variable 5-year fixed
Starting rate 1.29% (prime - 1.16%) 1.79%
Starting monthly payment $1,170 $1,240
Ending rate 2.79% 1.79%
Ending monthly payment $1,388 $1,240
Average rate over the term 2.15% 1.79%
Average monthly payment $1,294 $1,240
Total interest cost over the term $28,985 $24,498

As the numbers reveal, a rate floater would start with a lower monthly payment. But before the third year is up, those Bank of Canada rate hikes would jack those payments up by $218 a month.

In the end, the fixed-rate holder would come out ahead, paying roughly $4,487 less in interest over the five-year term.

And heaven forbid, if rates jumped 250 bps as they did in the 2004 to 2007 episode, payments would spike 32% ($374 a month) to $1,544.

Today's Featured RatesUpdated 21:00 ET on Sep 26, 2021

Rates are based on a home value of $400,000

card image
0.95%
Term
3 Yr Variable
Loan to value
80.01% to 95%
Insurance
Insured
Rate held until
Dec 26
card image
1.54%
Term
5 Yr Fixed
Loan to value
80.01% to 95%
Insurance
Insured
Rate held until
Jan 25
card image
0.99%
Term
5 Yr Variable
Loan to value
80.01% to 95%
Insurance
Insured
Rate held until
Jan 25

The takeaway

While a substantially lower variable rate may seem tempting as the fixed-variable spread widens, we can't forget that the most likely path for rates is now up. And history confirms that 150 bps of hikes is easily within the realm of possibility.

The price for peace of mind is now about at least 50 basis points. That's how much more you'll pay (minimum) to lock in till 2026, relative to a floating rate.

That's a historically cheap price to pay. And even though fixed rates are on the rise, at sub-2% they’re still a steal relative to decades past.

DOT Tip: If you do choose a longer-term fixed rate, try to pick a fair penalty lender. Otherwise, if you break that fixed mortgage early you'd potentially pay a hefty big bank penalty. That could consume all of the rate savings.
Rob McLister

Rob McLister has been informing mortgage consumers and professionals since 2007. In that time, he’s written more than 2,500 mortgage stories for publications ranging from the Globe and Mail — where he presently serves as mortgage columnist — to the National Post, Maclean’s, Canadian Mortgage Trends and RateSpy.com. Regularly quoted throughout the media, Rob is a committed advocate of greater transparency in the mortgage industry. He’s also been a vocal consumer advocate for more sensible mortgage regulation. In 2011, he launched two mortgage fintechs: mortgage comparison website RateSpy.com and digital mortgage broker intelliMortgage Inc. The former is the go-to source of Canadian mortgage news and the only site comparing all publicly advertised prime mortgage rates. The latter is Canada's leading online mortgage provider for self-directed borrowers. Both companies were acquired in 2019 by RATESDOTCA Group Ltd.

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