The cost of the U.S. military action against Iran is rapidly climbing into the tens of billions of dollars, according to congressional briefings and economic analyses, raising urgent concerns about federal spending as Washington already faces mounting deficits and debt.
Pentagon officials told lawmakers in a closed-door briefing that the conflict had cost more than $11.3 billion within the first six days alone. The figure does not account for additional expenses such as pre-strike military buildup or long-term operational costs.
Even this estimate may be conservative, with Sen. Chris Coons, D-Del., stating the current total operating number likely exceeds it significantly. “I expect that the current total operating number is substantially higher,” Coons told reporters, emphasizing that initial figures largely focus on replacing munitions used during early strikes.
The campaign’s opening phase involved heavy deployment of high-tech weaponry, including AGM-154 glide bombs priced between $578,000 and $836,000 each, per defense analysts. Independent assessments suggest the financial burden is accelerating quickly, with some estimates placing daily costs at $800 million to $1 billion depending on operational intensity.
Economists warn that prolonged conflict could trigger dramatic cost surges. Analysts from the Penn Wharton Budget Model estimate a two-month escalation would add roughly $65 billion in new expenses for U.S. taxpayers—on top of an already strained fiscal outlook. Earlier projections indicate the federal deficit might reach 6.5% of GDP by 2035, while national debt could climb to 120% of GDP, levels economists describe as unsustainable.
Interest payments alone consume nearly one-fifth of federal spending, making new borrowing increasingly expensive. A prolonged engagement would likely require Congress to approve supplemental funding for military operations. Yet lawmakers from both parties are already debating how long the operation might last and what final strategy will emerge.
Some Republicans advocate accelerated investment in munitions production to maintain readiness, while others caution against approving open-ended funding for extended conflict. The financial pressure intensifies as the federal budget grapples with rising entitlement costs and high interest expenses.
Meanwhile, military operations remain fluid. Fighting has intensified across the region, with escalating tensions near the Strait of Hormuz—a critical global oil shipping route. President Trump recently suggested the war could end soon but acknowledged that developments on the ground might prolong the conflict.
