Fighting against Iran has cost the Pentagon $38 billion by August 2026
Quick Look
- 1, 2026, combat operations against Iran had cost the U.S.
- Department of Defense approximately $38 billion, according to a report from the Congressional Budget Office.
- Monthly costs would range from $2 billion to $3 billion, depending on the intensity of the conflict.
AI-generated summary
Why It Matters
The Congressional Budget Office report provides an updated estimate of the financial cost of fighting Iran through August 2026, including monthly projections and the administration's recent request for additional funding.
Combat operations against Iran as of August 1, 2026, cost the US Department of Defense approximately $38 billion, and each subsequent month of the campaign will cost the US budget between two and three billion dollars, according to a new report from the US Congressional Budget Office.
"As of August 1, the armed conflict with Iran has cost the US Department of Defense approximately $38 billion... If the intensity of hostilities remains at the same low levels as in May and June, each additional month of conflict will cost $2 billion; if the intensity increases to approximately the level of July, monthly costs will increase to $3 billion," the report says.
The Pentagon's spending reflects the cost of replacing spent ammunition and equipment lost in battle, increased aviation hours, related operations and increased fuel costs, the report notes.
It also clarifies that in June the administration asked Congress for 87.6 billion in additional funds, of which 67.1 billion was directly for the Pentagon, while direct military spending in this request - 42.3 billion - was about 10% higher than the Budget Office estimate.
What to Watch
AI outlook — possibilities, not facts
The US Congress will approve the administration's request for an additional $87.6 billion to finance the conflict with Iran
Likely · Within weeks
Monthly conflict costs will remain in the $2-3 billion range over the next 3-6 months
Possible · Within months
Open Questions
- What is the exact date of the start of hostilities against Iran?
- What specific military operations were carried out as part of the campaign?
- How much damage did Iran suffer as a result of the conflict?
- Are there any signs of ceasefire negotiations?







