• Treasury Secretary Scott Bessent forecasts that an end to the Iran conflict will lower energy prices, inflation, Treasury yields, and mortgage rates.
  • He did not specify when the conflict might end, saying it could be "next week, next month, in two months."
  • Market data show 10-year Treasury yields at 5.18% and 30-year fixed mortgages at 7.37%, highlighting the pressure on borrowing costs.

Bessent's Forecast

U.S. Treasury Secretary Scott Bessent is betting that a resolution to the conflict with Iran will bring relief to American borrowers. In remarks reported on October 6, Bessent said he expects that once the conflict ends, energy prices will decline, inflation will ease, and Treasury yields and mortgage rates will follow suit. He acknowledged uncertainty about the timing, stating he does not know whether the conflict will end "next week, next month, in two months," but he anticipates borrowing costs will fall afterward.

Bessent's argument follows a straightforward chain: reduced conflict risk would improve energy supply, lower oil prices, and ease inflation pressure. That, in turn, could reduce Treasury yields and mortgage borrowing costs. He specifically expects longer-term yields to return toward their mid-February, prewar levels.

However, Federal Reserve officials and economists offer a competing explanation: economic resilience, investment demand, and other pressures also support higher yields. As a result, ending the war might reduce rates without restoring them to previous levels.

Market Pressures

The recent market backdrop illustrates the challenge. As of September 24, the U.S. 10-year Treasury yield reached 5.18% intraday, its highest since 2007, while the 30-year Treasury yield hit 5.47%, a 22-year high. The average 30-year fixed mortgage rate reported by NBC (CMCSA) stood at 7.37%, the highest since May 2024. Brent crude closed at $106.60 a barrel that day, underscoring persistent energy costs.

The sell-off has extended beyond the United States: Japanese 10-year yields reached their highest since 1996, and German 10-year yields their highest since 2009. This is a global financing-cost problem, not solely a U.S. mortgage-market development.

Treasury Actions and Fed Policy

Treasury has already bought back longer-dated government bonds in an effort to contain yields. A roughly $4 billion purchase of 20- and 30-year bonds on September 24 did not prevent yields from rising. Wells Fargo (WFC) fixed-income strategist Brian Rehling said inflation, Fed expectations, and debt issuance remained the dominant forces determining long-term rates.

Meanwhile, some Fed officials have discussed additional tightening rather than easing. In September, New York Fed President John Williams said another rate increase might be appropriate by year-end, while Philadelphia Fed President Anna Paulson also indicated modest further tightening could be warranted. Those were conditional policy views, not announced decisions.

Diplomatic Developments

The conflict began following U.S. and Israeli attacks on Iran in late February, according to NBC's account. September negotiations around the United Nations General Assembly initially produced no tangible evidence of progress. A subsequent Reuters (TRI) report, relayed by NBC, said negotiators were exploring a phased resolution involving Iran reopening the Strait of Hormuz; NBC explicitly noted that it had not independently confirmed that report.

That distinction matters: Bessent's forecast depends on a durable improvement in energy supply and conflict risk, rather than reassuring statements alone. Oil and stocks reacted sharply to the September negotiation headlines, demonstrating how sensitive markets are to diplomatic developments.

Societal Impact and Public Debate

Prospective homebuyers and refinancing households face elevated borrowing costs. Lower yields could offer relief, but Bessent's remarks provide neither a guaranteed mortgage rate nor a timetable. Households face pressure from both fuel prices and wages that may not be keeping pace with inflation. EY chief economist Gregory Daco expects September inflation-adjusted wages to decline 0.6% year over year; that is his forecast, not a released September inflation result. Businesses face higher financing, fuel, and transportation costs. September business surveys showed accelerating activity alongside the steepest input-cost increase in four years. The federal government faces higher financing costs alongside increased war-related military spending, adding a fiscal dimension to the debate.

The central disagreement concerns whether the economy is strengthening enough to absorb these pressures. Bessent emphasizes accelerating activity and wage growth; Daco and RSM chief economist Joe Brusuelas warn that weakened purchasing power could restrain spending into late 2026 and 2027. Fed officials, meanwhile, see economic resilience as one reason yields remain elevated.

Historical Context and Outlook

The immediate chronology is an energy shock after the late-February outbreak of war, followed by rising inflation concerns, higher bond yields, and increasingly expensive mortgages. By September 24, Brent and U.S. crude prices were both more than 65% above their start-of-year levels. Recent Treasury interventions are a useful precedent within this episode: bond purchases have not reliably reversed the rise in yields. Bessent also supported an intervention aimed at strengthening Japan's yen and reducing pressure on Japan to sell U.S. Treasuries, but NBC reported that the yen subsequently weakened again.

Parallel developments include rising sovereign yields in Japan and Germany, plus strong U.S. consumer spending and artificial-intelligence investment. Fed officials cite that investment and economic resilience as reasons borrowing costs may stay high even if the energy shock fades.

In the short term, a credible peace agreement could lower oil prices and ease some upward pressure on yields and mortgages. Negotiation headlines have already moved markets, but Bessent has supplied no reliable date for either a resolution or rate relief. Continued conflict or renewed energy disruptions would work against that forecast. Persistent inflation could also sustain expectations of further Fed tightening.

Longer term, the strongest counterargument to Bessent is that the war is only one driver of interest rates. Fed Chair Kevin Warsh has attributed long-term yields primarily to economic strength, while other officials point to resilient spending, profits, and investment. If those forces persist, lower oil prices may bring only partial borrowing-cost relief.

For interpreting this headline, the key distinction is between a plausible direction and a promised outcome: peace could help lower mortgage rates, but neither the magnitude nor the timing is established, and a return to prewar borrowing costs remains contested.

Correction: October 7, 2026 — An earlier version of this article misstated the date of Bessent's remarks. They were reported on October 6, not October 7.