Why Are Mortgage Rates Rising Again? – Here’s What’s Really Happening
After a period of relative stability, Canadian fixed mortgage rates are once again facing upward pressure.
For homebuyers and homeowners, this can feel confusing. If the Canadian economy is showing signs of weakness and underlying inflation is improving, why are mortgage rates moving higher?
The answer is that fixed mortgage rates aren’t determined solely by the Bank of Canada.
Fixed rates are heavily influenced by government bond yields, and those yields are currently being affected by several major global forces: inflation, oil prices, government debt and even the enormous amount of investment taking place in artificial intelligence..
Headline Inflation Doesn’t Tell the Whole Story
Canadian headline inflation recently reached 3.0%, which on the surface appears concerning.
But when we look underneath that number, the picture is considerably more encouraging.
Energy prices have been a major contributor to inflation, with gasoline inflation reaching 22.8%. At the same time, two important measures of underlying Canadian inflation remain much closer to the Bank of Canada’s target:
- Headline inflation: 3.0%
- CPI Median: 2.0%
- CPI Trimmed Mean: 1.9%
- Bank of Canada inflation target: 2.0%
This distinction matters.
The presentation’s data shows that trimmed-mean inflation has continued falling despite rising oil prices. That suggests the recent increase in headline inflation has not yet become broadly embedded throughout the Canadian economy.
So, if underlying inflation remains relatively contained, why are bond yields rising?
So Why Are Bond Yields Rising?
Inflation is only part of the story.
One of the biggest pressures on global bond markets today is the enormous amount of debt being issued by governments.
U.S. federal debt has now surpassed $40 trillion. Since 2020, the presentation estimates that U.S. government debt has increased by approximately $18.8 trillion, while Canadian federal debt has increased by approximately $580 billion.
Why does that matter to mortgage borrowers?
When governments need to borrow more money, they issue more bonds. As the supply of bonds increases, investors may demand higher yields to buy them.
Higher bond yields can translate into higher fixed mortgage rates.
There is also another interesting source of competition in the bond market: Artificial Intelligence.
Artificial Intelligence Is Changing the Bond Market
Large technology companies are borrowing significant amounts of money to build data centres and other AI infrastructure.
Goldman Sachs estimates that the major “hyperscalers” could issue approximately $400 billion of global investment-grade bonds in 2027.
That means government bonds are increasingly competing with highly rated corporate debt for investor dollars.
As a result, the bond market is being influenced by more than just traditional inflation and interest-rate expectations.
What About the Bank of Canada?
This is where the Canadian story becomes particularly interesting.
Canada does not necessarily need to follow the same interest-rate path as the United States.
The presentation highlights several reasons why: Canadian core inflation remains around or below 2%, there is still economic slack, Canada has significantly less AI-related investment spending than the U.S., and trade uncertainty continues to create risks for Canadian economic growth.
That creates an unusual environment where we could potentially see fixed mortgage rates remain volatile because of global bond markets while the Bank of Canada remains relatively cautious with its overnight rate.
What Does This Mean for Homebuyers?
The biggest takeaway is simple:
Don’t make a long-term mortgage decision based solely on a short-term move in rates.
Mortgage rates could remain volatile as markets digest inflation, oil prices, government borrowing and economic data.
For buyers, that makes a proper pre-approval and rate hold increasingly important. For existing homeowners approaching renewal, it means starting the conversation early rather than waiting until the final few weeks before maturity.
**And when choosing between fixed and variable — or even between different fixed terms — the lowest advertised rate isn’t necessarily the best mortgage.
The right strategy should consider your timeline, cash flow, future plans, prepayment flexibility and potential penalties.
The mortgage market may be changing quickly, but good mortgage advice should always be based on the bigger picture.
Fixed vs. Variable: Understanding the Current Spread
As of October 15th, fixed rates are ranging from 4.49% to 4.99%+.
Variable rates range from 3.45% to 3.95%.
The spread between fixed and variable is significant, at approximately 1.00% to 1.50%.
This spread should be considered as part of your lending strategy.
Even if the Bank of Canada were to increase its overnight rate by 1.00%, you would essentially be approaching the fixed rates available today.
That doesn’t automatically mean variable is the better choice. The right decision depends on your individual circumstances and how comfortable you are with potential changes in your mortgage payment.
If You’re in a Variable Mortgage, Should You Lock In?
If you’re currently in a variable-rate mortgage, should you lock in?
The answer is: it depends.
There is no one-size-fits-all answer.
Your decision should take into account your mortgage balance, remaining term, cash flow, future plans, risk tolerance and overall financial picture.
This is where having a conversation with your mortgage broker can be valuable.
Rather than simply asking, “What’s the lowest rate?”, the better question is:
“Which mortgage strategy makes the most sense for me?”
The mortgage market may be changing quickly, but good mortgage advice should always be based on the bigger picture.
Ready to Review Your Mortgage Strategy?
With fixed and variable rates moving for different reasons, choosing the right mortgage is about more than simply finding the lowest advertised rate. Your personal situation, financial goals and comfort with risk all play a role.
Let the team at Mortgages.ca do the heavy lifting for you. We’ll help you understand your options, compare mortgage strategies and negotiate to secure financing that fits your needs.
Ready to take the next step? Apply Now to start your pre-approval process, or visit our Contact page to speak with a mortgage expert about your options.