Mortgage rates climbed this week, pushing higher on renewed geopolitical tensions in the Middle East. The breakdown of ceasefire negotiations between Iran and Israel sent investors fleeing to safer assets, which historically pushes bond yields up and mortgage rates along with them.

The 30-year fixed mortgage rate now sits substantially higher than last week, making home borrowing more expensive for buyers entering the market. A borrower seeking a $400,000 mortgage will pay noticeably more per month compared to rates from just days prior.

These rate increases reflect broader market anxiety about oil supply disruptions. When conflict threatens Middle Eastern oil production, investors worry about inflation spreading through the economy. Higher inflation typically forces the Federal Reserve to keep interest rates elevated, which ripples directly into mortgage pricing.

The 15-year fixed rate also climbed, though typically by a smaller margin than the 30-year product. Refinancing becomes less attractive at these levels. Homeowners locked into rates below 4 percent should hold their mortgages rather than refinance.

For prospective buyers, timing matters now. Rates swing daily based on headline risk and economic data. Locking in a rate through your lender protects you from further increases. Shopping across multiple lenders remains essential. Wells Fargo, Chase, Bank of America, and smaller outfits like Better.com and Rocket Mortgage all quote rates daily, and differences between them can mean thousands of dollars over a 30-year loan.

The ceasefire collapse adds uncertainty to an already volatile rate environment. Unless tensions ease and oil prices stabilize, expect mortgage rates to remain elevated or climb further. Buyers on tight timelines should move quickly. Those with flexibility may wait to see if geopolitical risks recede and pull rates down again.