US-Iran War Bill Nears $29 Billion, Pentagon Admits

Synopsis

The United States Defense Department disclosed during a Capitol Hill budget hearing that the cost of its military conflict with Iran has reached nearly $29 billion — approximately $4 billion higher than Secretary Pete Hegseth’s estimate just two weeks prior. Pentagon finance chief Jules Hurst III and Joint Chiefs Chairman General Dan Caine testified alongside Hegseth as lawmakers pressed for accountability on the war’s rapidly escalating price tag and its implications for broader military readiness.

The price tag of the conflict with Iran was making unflattering headlines on Capitol Hill when US Defense Secretary Pete Hegseth testified to lawmakers April 29 and put the battle against Tehran at about $25 billion. When the colleagues of the Polish senator returned to testify this week, the number had risen again — and quite significantly, enough for legislators to not want to leave it unchallenged.

The war now costs almost $29 billion, up about $4 billion in the last two weeks, according to Pentagon finance chief Jules Hurst III, who told the House Armed Services Committee on Tuesday.

“At the time of testimony… it was $25 billion dollars. But the joint staff team and the comptroller are constantly looking at estimates and now we think it is closer to 29.” —Jules Hurst III, Pentagon Finance Chief, Testimony to Congress

An Accountability Forum about a Budget Hearing.A Budget Hearing as Accountability Forum

The new number came not from a briefing to the press or statement by the White House, but from a Congressional budget hearing — the kind of proceeding where spending numbers tend to be scrutinized in ways that administration officials might not want to encourage.

Hegseth and Gen. Dan Caine, chairman of the Joint Chiefs of Staff, were out to defend a $1.5 trillion defense budget request for fiscal year 2027, which already was up for debate among lawmakers. The revised war cost estimate by Hurst took the focus of the session, right out of the blue.

The hearing format has long been one of the more credible places to get their figures from the defense establishment

The anatomy of modern military spending is explained by the rising costs. When a country is fighting a war, the cost of the war does not run in a straight line. The cost will increase when munitions are used up and need to be replaced, when logistical support is stretched out, and when the tempo of operations is higher than initially expected.

Several analysts have mentioned costs of the ongoing conflict between the United States and Iran: precision-guided munitions, which could cost from several hundred thousand to a few million dollars per shot; the presence of carrier strike groups in the Persian Gulf; and increased intelligence and surveillance.

In its report, the Stockholm International Peace Research Institute (SIPRI) reported that operational conflict costs for the major powers have been on the rise in recent years, as the major powers have shifted their reliance from conventional munitions to precision munitions that are “highly valued.”

Military Readiness: The Strategic Concerns Behind the Numbers

In addition to the amount of money, the testimony raised an issue that has been discussed in defence circles, whether the US military is being eroded by the spending and munitions use in terms of being ready for other potential theatres of conflict, such as the Indo-Pacific.

During the hearing, Gen. Caine admitted that “readiness is always a consideration in sustained operations,” but didn't state that the current level of depletion was a strategic liability. In a February 2026 study, the non-partisan Congressional Budget Office (CBO) warned that “long-term deployment in West Asia might put strain on reserve stocks of some munition types.”

In any sustained operation, "readiness" is always a factor to consider. — Gen Dan Caine, Chairman, Joint Chiefs of Staff By integrating a $29 billion war into the economy, we are paying for it in ways we never anticipated.A $29 billion war is costing us more economically than we ever dreamed.

The direct economic impact of the war is $29 billion, but that is just a small fraction. Consumer inflation in the US expanded to 3.8 per cent year-on-year in April 2026, due to higher energy prices as a result of the conflict, analysts noted. The disruption of supply routes to West Asian oil has spurred the price of Brent crude, and through that the price of transportation, manufacturing and food supplies.

Former PIMCO chief economist Mohamed El-Erian penned a popular column saying, “The war premium in oil prices is no fluke — it's the real uncertainty of supply, and there will be a negative impact on consumers at the pump and in the grocery cart for a while.”

A rate hike that had been under consideration by the Federal Reserve has been tempered by an increase in inflation that is not being caused by too much demand in the domestic economy, making conventional monetary policy ineffective to combat.

The Political Economy of a $29 Billion War

In Washington, it is a pressure point that is now impacting both sides of the aisle. Not only have Republicans, who have long been proponents of defense spending, begun to doubt whether strategic goals justify the expense, but domestic budget trade-off concerns have also been raised by Democrats.

In the financial sense, the war in Iran has become an item on an agenda that will not go away. The $29 billion mark is both a high point and a future “way station” on what may be an even higher and more expensive path is an issue Congress will not want to give up.