Mortgage rates moved higher again this week as global markets reacted to escalating tensions involving Iran and renewed concerns about energy prices and inflation. The average 30-year fixed mortgage rate climbed to roughly 6.75%, marking one of the sharpest increases seen since late 2025.

For real estate professionals, the latest move is another reminder that mortgage rates are often shaped as much by global events as by domestic housing conditions.

The current increase is being driven largely by rising oil prices and higher Treasury yields. While geopolitical conflicts have historically pushed investors toward safer assets like U.S. Treasurys — a trend that usually lowers borrowing costs — this cycle has played out differently because inflation concerns are outweighing traditional safe-haven demand.

Mortgage rates are closely tied to the yield on the 10-year Treasury note. When investors expect inflation to remain elevated, Treasury yields generally rise as bond buyers demand higher returns. Mortgage lenders then adjust rates higher to reflect those increased borrowing costs.

Energy market volatility adds inflation pressure

Recent volatility in energy markets has become a major factor. Oil prices climbed after concerns grew that instability in the Middle East could disrupt global supply routes, including shipping activity through the Strait of Hormuz, one of the world’s most important oil transit corridors. Reports noted that rising oil prices have fueled renewed inflation fears across global bond markets.

That matters directly for mortgage pricing.

Higher energy costs can ripple through the broader economy by increasing transportation, manufacturing, and consumer expenses. Investors worry that sustained increases in oil prices could keep inflation above the Federal Reserve’s long-term target, limiting the central bank’s ability to reduce interest rates in the near future.

According to MarketWatch, rising oil prices have historically contributed to higher inflation expectations and upward pressure on Treasury yields. Analysts say those same dynamics are now influencing mortgage-backed securities and home loan pricing.

Higher borrowing costs intensify affordability challenges

The impact is already being felt in housing affordability calculations. A borrower financing a $400,000 home loan at 6% faces a monthly principal-and-interest payment of about $2,398. At 6.75%, that payment rises to approximately $2,594 — nearly $200 more per month before taxes and insurance.

For agents and brokers, the shift could further pressure affordability in markets where buyers are already sensitive to monthly payment changes.

At the same time, inflation data has added to market uncertainty. Recent consumer and wholesale price reports showed inflation remaining firmer than many economists expected, reinforcing concerns that borrowing costs could stay elevated longer than previously anticipated. As reported by National Mortgage Professional, investors have increasingly revised expectations for Federal Reserve rate cuts this year.

What real estate professionals should watch next

Still, economists caution that mortgage rates remain highly sensitive to incoming geopolitical and economic developments. If oil prices stabilize or tensions in the Middle East ease, Treasury yields could retreat, creating room for mortgage rates to moderate. Conversely, any additional supply disruptions or stronger-than-expected inflation data could keep upward pressure on borrowing costs.

Some analysts also note that bond markets are balancing competing forces. While inflation fears are pushing yields higher, geopolitical uncertainty can still create periodic demand for safer investments, helping prevent even sharper increases in rates.

For now, housing professionals may want to prepare clients for continued volatility rather than a rapid decline in financing costs. Industry experts increasingly view oil prices, inflation trends, and Treasury market movements as the key indicators to watch in the weeks ahead.

As global events continue influencing financial markets, mortgage rates may remain more connected to energy prices and inflation expectations than to the traditional spring housing cycle.