CBO Report Estimates Cost of Iran Conflict at $40 Billion

The CBO analysis attributes $38 billion of the total to operational, logistical, and sustainment expenses incurred through July. These figures account for the replacement of munitions and equipment, fuel, and flight operations. Notably, the office compiled this data using public records after the Pentagon failed to fulfill requests for internal information. The report further warns that the depletion of missile defense interceptors will leave the United States with a diminished inventory for years to come.

Beyond direct military spending, the war is driving macroeconomic consequences. Elevated energy prices are projected to push inflation 0.5 percentage points higher in early 2027 than previous forecasts. Independent research from Brown University’s Watson School suggests the broader financial burden on the public is even more severe, estimating $107 billion in additional fuel costs, or roughly $776 per household.

Rep. Brendan Boyle, ranking member of the House Budget Committee, criticized the administration for prioritizing this conflict while pursuing cuts to Medicaid and the Supplemental Nutrition Assistance Program. Senator Elizabeth Warren characterized the CBO figures as conservative, noting the estimate omits critical factors such as damage to U.S. bases and the long-term impact on grocery and fuel prices.