No, Fixed Rates Don't Change When Prime Does

When the prime rate falls, the fixed-rate crowd asks 'Do we win?" And if it rises, fixed rates have usually already risen.

Fixed rates move weeks or months before changes to the Bank of Canada policy rate and bank prime rate. Here's why.

Sep 22, 2026

Updated from Mar. 9, 2025

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Nope, not budging.

Everybody in mortgage land gets excited when interest rates drop, or worries when they start to rise. They call their expert True North broker to see how much their mortgage rate is falling or going up.

Variable-rate mortgage and HELOC holders get the good or bad news — their rate, which is directly affected by Bank of Canada and bank prime rate cuts, will be lowered or raised.

But if you have a fixed-rate mortgage or a pre-approval hold ahead of buying or renewing a home? Like a dog that's plopped down mid-walk — that ain't budging.

Here's what does move fixed mortgage rates.

When you sign, your fixed rate is fixed.

Just so there's no confusion, once you've signed your mortgage, your fixed rate is locked for your chosen term (e.g. 5 years) and won't budge until renewal — which means watching prime rate drops or hikes from the sidelines.

Or you can break your mortgage to take advantage of a better rate, but it likely means incurring a potentially hefty pre-payment penalty, which sometimes can make (mortgage) savings sense.

Fixed rates are led by the bond market, not prime.

A bond is a loan to a government or company that pays a fixed return over a set term (e.g. 2-year, 5-year), so fixed mortgage rates are also set by term, competing with bonds for investor capital while covering loan operating costs.

Fixed rates are set at a 1-2% spread from bond yields (the rate of return investors get, based on the price they paid), depending on mortgage market competition and a lender's operating costs.

When bond yields move, fixed rates eventually move if a trend holds. And then prime rates may follow later. The bond yield market is bigger than the stock market and reacts daily to economic pressures and factors. Yield movements signal where the prime rate could be headed in the near or longer term.

By the time prime moves, fixed rate movements are yesterday's news.

Fixed mortgage rates typically move down well before any 'expected' prime rate drops, or rise before prime rates do.

The only reason you'd see fixed rates move around the timing of prime rate changes is if bond yields reacted to something the market didn't expect, and lenders follow that move.

Read more about how fixed rates are tied to bond yield movements, and when banks will actually trigger changes.

The pandemic fixed-rate lows and highs, ahead of prime rate changes.

According to True North's historical rate chart, in January 2020, our best 5-year fixed rate average for the month was around 2.60%.

  • During the pandemic, the 5-year fixed hit its lowest point in January 2021 at around 1.45%.
  • The 5-year fixed hit a high in October 2023 at about 5.65% as prime rose to 7.20%.
  • In November 2023, fixed rates started falling, but prime rates didn't start dropping until 9 months later, in July 2024 — showing how far ahead fixed rates can move in anticipation of prime rate changes.

Aren't fixed rates always higher than variable rates, no matter where prime sits?

Usually, yes, 5-year fixed rates are typically higher than 5-year variable rates (including lender discounts) by a spread of 0.25% to 1.0%.

However, that spread relationship can invert during times of extreme economic stress, like post-pandemic, when the prime rate rose so high (a 22-year high) to tame 8.0% headline inflation, and fixed rates were actually cheaper. During this rate-spread anomaly, it took a couple of years for the natural spread relationship to return as prime rates finally fell to a more neutral level.

Fixed mortgage rates will only have more give if interest rates go lower.

With an ongoing trade disruption imposed by U.S. President Trump, economic turmoil is already stoking expectations of a deeper slowdown in Canada. Yet sustained higher oil prices, plus recent additional tariffs and Canada's counter-tariffs, are likely to feed into inflation for longer, placing a floor under how far interest rates could fall in the next few months.

Fixed rates could also rise, even if the BoC policy stays put, as bond yields react to anything 'economic' walking by — including what's going on with the U.S. and global economy.

True North is your rate whisperer.

Our highly trained brokers know a thing or two about mortgages — and are great at coaxing your very best fixed or variable mortgage rate (in your preferred language).

We shop lenders for you, pass along a volume discount and help you avoid hidden fees and charges. And we pair your great rate with great company: a flexible mortgage that can help you save now and later if you need a change.

A few minutes with us could save you a pile of cash on your mortgage. Give us a shout today — online, over the phone or by email, or drop by a store near you.

Compare Rates and Save

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Save over 5 years:

$5,464

A lower rate gives you more savings than merely a lower monthly payment. The real savings is both the interest saved, plus the additional principal paid down over the term.

breakdown
The difference in monthly payments would be 41, but the value is substantially more.
4.64%
4.44%
Savings
Total monthly payments
Principal paid over term

Various tools and functions of this website perform calculations and provide cost estimates. These tools are designed for illustrative purposes only and make many assumptions that may not reflect all situations. Please use these tools in collaboration with a True North Mortgage agent. True North Mortgage does not guarantee the accuracy, reliability or completeness of these tools or calculations.

Fixed Rate FAQ

How far ahead of a prime rate movement might fix rates move?

Banks raise or lower their fixed mortgage rates within days of a shift in bond yields, but a corresponding prime rate move usually takes much longer — weeks or even months, depending on economic conditions.

Learn more here: 
Mortgage Rate Forecast (2026-2030)
How Government Bond Yields Relate To Mortgage Rates

Get your rate moving in the right direction — to save more.