Why are fixed mortgage rates increasing in Canada right now?

Fixed offers track bond markets. Since the Iran war began, oil and inflation expectations pushed global yields higher. That raised lenders’ funding costs and posted rates. Canadian fixed terms follow Government of Canada 5‑year yields and swaps, which move with U.S. Treasuries. Until bonds calm, a fixed mortgage rates increase is likely to persist.

How does the U.S. 6.30% 30-year mortgage rate affect Canadians?

It signals broad funding conditions. When the U.S. 30‑year sits near 6.30%, it reflects higher Treasury yields and risk premiums. Canadian yields often follow, lifting fixed offers here. The channel is through Government of Canada bonds and swap rates. So U.S. mortgage shifts can foreshadow a fixed mortgage rates increase in Canada.

Should I lock a fixed rate now or wait?

If your purchase or renewal is within 90 to 120 days, consider a no‑cost rate hold while you keep shopping. That protects you if fixed mortgage rates jump again but lets you benefit if markets ease. Compare multiple lenders, check buydown options, and stress test payments a bit above current quotes.

Why did refinance demand fall 19%, and what does it signal?

Higher rates reduce the number of borrowers who can save by refinancing. With the U.S. 30‑year near 6.30%, few owners can beat existing loans, so applications fell 19%. It signals slower credit growth and cooler housing churn, not necessarily a recession. If bond yields retreat, refinance math can improve quickly.

Global Market Insights

March 18: Fixed Mortgage Rates Jump; Refi Demand Plunges 19%

ByHuzaifa Zahoor March 19, 2026March 19, 2026

Fixed mortgage rates increase is back in focus for Canadians on March 18. Oil prices and global bond yields rose after the Iran war began, pushing the U.S. 30-year average to 6.30% and driving a 19% weekly drop in refinance applications. That backdrop tightens spring affordability across Canada as lenders reprice fixed offers tied to Government of Canada 5-year yields. We break down what this means for payments, housing demand, and rate‑sensitive names, and what to watch before central bank commentary steers bonds again.