U.S. Defense Secretary Pete Hegseth said senators that the war with Iran has cost approximately $37.5 billion [1] so far.
The updated figure represents a significant increase over previous projections, signaling a growing financial burden on the U.S. military budget as the conflict continues.
Testifying before the Senate Appropriations Committee in Washington, D.C., on Tuesday, July 21, Hegseth said the new spending total [2]. The figure is substantially higher than the Pentagon's earlier estimate of roughly $25 billion [3].
Hegseth said the new number reflects additional operational costs calculated through Sept. 30 [4]. The Defense Secretary used the hearing to update Congress on the financial requirements of the war and to justify requests for additional funding [5].
"The war with Iran has cost about $37.5 billion so far," Hegseth said [2].
President Donald Trump also addressed the ongoing nature of the conflict during the same hearing. "We are not finished with the war," Trump said [6].
The discrepancy between the initial $25 billion estimate [3] and the current $37.5 billion figure [1] highlights the escalating costs of maintaining military operations in the region. Hegseth said that the updated calculations account for the increased scale of activities leading up to the end of the fiscal year [4].
“"The war with Iran has cost about $37.5 billion so far,"”
The 50% increase in estimated costs suggests that the conflict in Iran is more resource-intensive than the Pentagon initially projected. By linking these expenditures to the Sept. 30 fiscal deadline, the administration is signaling to Congress that current funding levels are insufficient to sustain the intended military objectives.



