Canadian mortgage costs look set to climb as bond yields surge and prices face downward pressure

# What changed this week Government of Canada bond yields jumped 15 basis points to 3.65% on Thursday, the highest level since May 2024. That move extends a broader rise that began in February 2026, when yields started climbing more aggressively and have since risen about 92 basis points. Typically fixed mortgage rates track bond yields, but mortgage pricing has lagged this cycle because lenders have been absorbing some of the higher funding costs.

# Why mortgage rates may still rise A Big Six bank and other market participants say lenders squeezing margins is temporary. Banks are warning that it's not sustainable for lenders to keep covering larger gaps between funding costs and what they offer borrowers. As bond yields persist at higher levels, those compressed margins are likely to unwind, which would push fixed mortgage rates higher in the coming weeks.

# The affordability picture

BMO Capital Markets interprets the current mix of a fragile economy and rapidly rising bond yields as leaving only one practical lever to restore affordability: lower home prices. Because rates have not yet fully reflected bond moves, further price declines are the mechanism BMO expects will continue to relieve affordability pressures.

# Mortgage-backed securities and disclosure

# Rents and regional divergence Average asking rent for a two-bedroom across Canada fell 0.9% to $2,130/month in Q2 2026, which put rents 3.6% below the year-ago level. Most of the decline happened in Ontario and Western Canada, including the country's most expensive rental markets. Alberta saw asking rents in some cities drop below average paid rents. Atlantic Canada is the notable exception: rents there continue to rise, with Halifax becoming one of the priciest rental markets nationally.

# What this means for borrowers and buyers If lenders pass through higher bond-driven funding costs, fixed mortgage rates will move up and borrowing will get more expensive. That dynamic, together with a fragile economy, makes price declines the likeliest near-term adjustment to affordability. Renters may see relief in many markets, but renters in Atlantic Canada face continued pressure.

# Short checklist for readers

• If you have a fixed-rate mortgage coming up for renewal, expect higher quoted rates if bond yields stay elevated.
• If you're shopping for a home, plan for a market where price declines are possible even if headline mortgage rates have lagged.
• Landlords and renters should watch regional rental trends: most markets are softening, Atlantic Canada remains tight.