Mortgage rates climb to 6.58% as Iran conflict lifts oil prices

The 30-year fixed mortgage rate climbed to 6.58% this week, its highest level in nearly 12 months, as rising oil prices from the U.S.-Iran conflict stoked inflation expectations and pushed bond yields higher.

"It's not just about rates for homebuyers, but rather the full financial picture of buying," said Lisa Sturtevant, chief economist at Bright MLS. "Home prices hit record highs this summer in many markets across the U.S. while higher gas prices and concerns about overall inflation rising have created more financial strain for would-be buyers."

The benchmark rate rose from 6.55% last week, Freddie Mac said Thursday, marking three consecutive weekly increases. One year ago, the average 30-year rate stood at 6.74%. Borrowing costs on 15-year fixed-rate mortgages, a popular refinancing option, also rose to 5.96% from 5.93% a week earlier. The 10-year Treasury yield, which lenders use as a guide for pricing home loans, reached 4.7% at midday Thursday, up from 4.57% a week ago and well above the 3.97% level in late February before the conflict escalated.

Higher mortgage rates add hundreds of dollars a month in costs for borrowers, squeezing purchasing power at a time when home prices sit at record highs in many markets. Seasonally adjusted sales of previously occupied U.S. homes ran at roughly a 4 million annual pace through June, far below the historic norm of about 5.2 million. The housing market slump that began in 2022, when rates started climbing from pandemic-era lows, has extended into a third year, with existing home sales essentially flat in 2025 at a 30-year low.

The rate increase reflects a broader transmission chain from geopolitical risk to household borrowing costs. The conflict between the U.S. and Iran has driven crude oil prices sharply higher since late February, stoking expectations that inflation will prove stickier than anticipated. That has pushed long-term bond yields higher as investors demand greater compensation for inflation risk, directly lifting mortgage rates.

The last time the 30-year fixed rate touched this level was in August 2025, when it also hit 6.58%. At that time, the Federal Reserve was in the early stages of what markets expected to be a rate-cutting cycle. Now, rising oil prices threaten to complicate the central bank's path. The Fed does not set mortgage rates directly, but its policy decisions influence the 10-year Treasury yield, which lenders use as a benchmark. If inflation accelerates, the Fed may be forced to hold rates higher for longer or even raise them, further pressuring the housing market.

For prospective homebuyers, the combination of elevated mortgage rates and record home prices has created an affordability squeeze with no clear relief in sight. The typical monthly payment on a $400,000 home with 20% down at the current 6.58% rate is roughly $2,040, compared with about $1,910 when rates briefly dipped below 6% in late February — a difference of more than $1,500 a year. With gas prices also rising as oil climbs, household budgets face pressure from multiple directions.

This article is for informational purposes only and does not constitute investment advice.