WASHINGTON, United States – The U.S. military’s direct cost of the war with Iran has reached $43.6 billion through Sept. 3, according to a new estimate from U.S. Central Command provided to congressional committees.
The figure is the latest accounting of the U.S. military’s spending since the conflict began Feb. 28 and is substantially higher than the Congressional Budget Office’s estimate of $38 billion through Aug. 1.
A separate Pentagon figure reported Friday puts the total at $45.1 billion after adding about $1.5 billion in additional fuel costs. That figure still does not include the cost of repairing damaged U.S. military facilities across the Middle East.
The latest figures show how rapidly the financial burden has increased as American forces continue using large quantities of expensive missiles, bombs and air-defense interceptors.
Munitions account for the largest share
Of the $43.6 billion direct-cost estimate, about $28.1 billion is associated with munitions used during the conflict.
That represents well over half of the reported total and includes bombs, missiles and defensive interceptors. The figure has risen sharply from the $21.7 billion in munitions costs included in the CBO’s earlier assessment.
The heavy use of interceptors has particular significance because systems such as Patriot and THAAD missiles are expensive and require substantial replenishment after combat operations.
The Congressional Budget Office has warned that rebuilding depleted U.S. weapons stocks could take years. Its assessment said some critical inventories could require at least five years to restore, depending on production rates and future demand.
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Air Force and Navy costs are also mounting
The new Central Command figures provide an unusually detailed breakdown of spending by military service.
The Air Force has incurred about $6.6 billion in operating costs, while the Navy has spent roughly $2.2 billion operating aircraft carriers and other warships involved in the conflict.
Army costs were about $1.6 billion, according to the information provided to congressional committees. More than 50,000 U.S. service members have been assigned to the war mission in the Central Command area of responsibility.
The figures cover expenses including aircraft and ship operations, equipment losses, logistics and medical support.
They do not represent the complete economic cost of the conflict.
Damage to U.S. bases remains outside the estimate
Iranian missile and drone attacks have damaged U.S. military facilities across the Middle East.
The Central Command estimate does not include the cost of rebuilding or repairing those facilities.
A Pentagon inspector general report released this week found damage to hundreds of buildings and other structures at American bases in Kuwait, Bahrain, Qatar, the United Arab Emirates, Saudi Arabia, Iraq, Oman and Jordan.
That means the eventual military bill could be substantially higher than the $43.6 billion direct-cost estimate.
The Pentagon also has not provided Congress with a complete accounting of some indirect operational costs, according to reporting on the latest figures.
Costs are rising faster than earlier estimates
The latest figure is significantly above previous government estimates.
The Congressional Budget Office estimated that the conflict had cost approximately $38 billion through Aug. 1. It projected that the war would add roughly $2 billion to $3 billion per month after that point, depending on the intensity of fighting.
That projection helps explain the rapid increase in the Pentagon’s subsequent accounting.
The earlier Pentagon estimate had put the cost at about $37.5 billion. The new $43.6 billion figure therefore represents a substantial increase in only a matter of weeks.
Additional fuel spending brings reported total to $45.1 billion
The $43.6 billion figure does not include approximately $1.5 billion in additional fuel costs that the administration has sought as part of its war funding requirements.
When that amount is included, the Pentagon’s latest reported figure reaches $45.1 billion.
The distinction between the two numbers is important. The $43.6 billion figure represents Central Command’s direct war-cost estimate through Sept. 3, while $45.1 billion incorporates the additional fuel expenditure reported separately to Congress. Neither figure represents the final cost of the conflict.
The war is also drawing down weapons inventories
The financial cost is accompanied by pressure on U.S. military inventories.
The large quantity of precision weapons and air-defense interceptors used during the conflict has reduced stocks available for other theaters.
U.S. and NATO officials have warned that supplies of some missile interceptors have become severely constrained, while Saudi Arabia has also faced pressure on its own interceptor inventories.
The issue is not simply how much money is spent replacing weapons.
Production capacity also matters.
Some advanced weapons require long manufacturing cycles, specialized components and complex supply chains. Replenishing inventories can therefore take considerably longer than appropriating money for new purchases.
Congress faces pressure over the accounting
The expanding cost has prompted members of Congress to seek greater detail from the Pentagon.
Democratic senators have asked Defense Secretary Pete Hegseth for a fuller accounting, arguing that lawmakers and taxpayers need clearer information about the financial burden of the conflict.
The Pentagon has said it keeps Congress informed but has not publicly released a complete accounting of every cost category.
The Congressional Budget Office has also said its own assessment was limited because the Defense Department did not provide all of the information it requested.
As a result, government estimates currently provide only a partial picture of the war’s financial impact.
The spending comes as the administration seeks more defense funding
The rising war costs come as the Trump administration is seeking substantially more money for the military.
The administration has requested additional funding connected to the Iran conflict and broader defense priorities, while Hegseth has also promoted a proposed $1.5 trillion military budget for the coming fiscal year.
The requests combine immediate wartime expenses with longer-term investment in weapons production, military infrastructure and defense technology.
Congress will ultimately determine how much additional funding is provided and under what conditions.
The final bill remains uncertain
The $43.6 billion figure should therefore be treated as a current accounting point rather than a final war cost.
It excludes some known expenses, including the repair of damaged facilities, and future spending will depend on how long the conflict continues and how intensely U.S. forces remain engaged.
The CBO’s estimate of another $2 billion to $3 billion per month provides an indication of how quickly the total could continue rising, although actual costs could differ substantially if military operations change.
For now, the latest Pentagon figures show that the war has already generated tens of billions of dollars in direct military expenses, with munitions making up the largest component and additional costs still accumulating outside the government’s headline figure.
Reporting Credit: U.S. Central Command — latest direct war-cost estimate and military expenditure breakdown; U.S. Department of Defense — military operations, equipment and personnel costs; Congressional Budget Office — independent estimate of costs through Aug. 1 and projected monthly spending; Department of Defense Office of Inspector General — assessment of damage to U.S. military facilities.
