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Congressional Budget Office Report Estimates U.S. Direct Operations in Iran Have Cost $38 Billion
Just the facts
Direct Department of Defense expenditures for military operations involving Iran reached over $38 billion through August 1, 2026, with ongoing operations costing up to $3 billion per month. The CBO report noted that the primary cost drivers involve replacing munitions and military equipment lost or deployed in combat. Operational disruptions to commercial shipping routes through the Strait of Hormuz and the Red Sea are projected to raise U.S. inflation by 0.5 percentage points into the first quarter of 2027. The White House had previously submitted an $87.6 billion supplemental funding request to Congress in June 2026, which included $42.3 billion specifically allocated for conflict-related costs.
Why this is news
The Congressional Budget Office released a formal assessment commissioned by Representative Brendan Boyle evaluating the financial expenditures of U.S. military operations involving Iran. The report details direct operational costs incurred by the Department of Defense alongside projected macroeconomic impacts.
Sources
This summary is compiled strictly from the original reporting below.