Fixed mortgage rates are rising while the Bank of Canada sits still — here's why, and what a rate hold is worth

The Bank of Canada held its policy rate at 2.25% on September 2, its seventh hold in a row. Three weeks later, fixed mortgage rates are higher anyway. If that seems backwards, it's because the Bank doesn't set fixed rates. The bond market does.

Why fixed rates moved without the Bank

A five-year fixed mortgage is priced off the five-year Government of Canada bond yield, not the overnight rate. That yield rose about a quarter of a point in a single week in mid-September. Oil above US$100, inflation stuck at 3.0%, and a global bond selloff all pushed it up.

Lenders responded:

• Several big banks raised posted fixed rates by 10 to 20 basis points.
• Some lenders went further, and some pulled back their discretionary discounts. The rate you're actually offered may have moved more than the posted one.
• Markets now expect the Bank's next move to be up, not down. The next decision is October 28.

Variable rates haven't moved, because they follow the Bank's policy rate. The lowest advertised five-year fixed rates now sit around 4.1% to 4.4%, with variable around 3.25% to 3.4%. That gap is close to a full percentage point, wider than it was at the end of August.

What a few basis points does to a renewal

On a $500,000 balance over 25 years:

• 4.09% (the lowest fixed in late August): about $2,655/month
• 4.39%: about $2,737/month, or $82 more
• 4.59% (a 50-point jump once a discount disappears): about $2,792/month, or $137 more, roughly $1,640 a year

That's per year, for five years. It's also the gap between signing in August and signing after the move.

What it does to a buyer's budget

The stress test runs at your contract rate plus two points, so a higher fixed rate also means a higher qualifying rate. Using the home affordability calculator for a household earning $150,000 with $120,000 down:

• At 4.09% (stress-tested at 6.09%): max price about $754,900
• At 4.39% (stress-tested at 6.39%): about $739,600
• At 4.59% (stress-tested at 6.59%): about $729,700

A 30-point rise takes about $15,000 off the budget. A 50-point rise takes about $25,000. Your income didn't change.

If you were pre-approved in the summer, check whether that pre-approval included a rate hold. The approval amount is only as good as the rate attached to it.

The rate hold: free insurance, if you ask for it

Most lenders will hold a rate for 120 days. Some will hold it for up to 180. In a market where yields are jumping around, that's worth a lot:

• If rates rise, you keep the held rate.
• If rates fall, most lenders will give you the lower rate at funding. Ask the lender to confirm this in writing.
• It usually costs nothing. It commits you to nothing until you sign.

Renewing before the end of January 2027? You're inside the 120-day window now. Get a renewal rate held with your current lender and a competing one, then compare the two when your renewal offer arrives. Since late 2024, switching lenders at renewal on an uninsured straight switch no longer requires passing the stress test again. Shopping around costs you a few emails.

Buying this fall or winter? Make sure your pre-approval includes a hold rather than an estimate.

Locking in versus holding

A rate hold is different from committing to five years. Some brokers are now cautioning against locking in a five-year fixed at the top of a spike. The jump is tied to oil and geopolitics, and yields could fall quickly if either calms down. With a hold you keep that option open. If you sign five-year fixed today, you give it up.

If you can live with a payment that moves, a gap of roughly one point is the widest in a while. It would take three or four quarter-point hikes for variable to catch up with today's fixed. Markets are pricing hikes, but they priced them in the spring too, and those didn't come.

The takeaway

The Bank of Canada didn't change anything in September. Fixed mortgage rates changed anyway. If you have a renewal or a purchase inside the next four months, get a rate hold this week. It costs nothing, protects you if rates keep climbing, and still lets you take a lower rate if they fall. Then use the house poor calculator to test the payment you're holding against your actual budget.

Rates and lender moves: Canadian Mortgage Trends, Bond yield surge pushes fixed mortgage rates higher across Canada (September 12, 2026); lowest advertised rates from Ratehub.ca and WOWA.ca as of September 21–22, 2026. Policy rate: Bank of Canada. Affordability figures computed with Metrestick (GDS/TDS stress test, 25-year amortization, 2026 parameters).