CBO Estimates Iran Conflict Costs Pentagon $38 Billion So Far

The Congressional Budget Office reported the Iran war has directly cost the Pentagon $38 billion through July, with monthly costs of $2-3 billion if hostilities continue. The estimate excludes facility repairs, diplomatic operations, and future veteran care costs. Munitions inventories, especially antimissile interceptors, have been significantly depleted.
The CBO's $38 billion figure covers only direct Pentagon expenses, primarily replacing expended munitions, equipment losses, fuel, and extra military pay. Excluded are billions in potential facility repairs across the Middle East, diplomatic operations, foreign aid, casualty-related costs, future veterans' health care, and maintenance for assets used in the conflict. The Defense Department did not respond to CBO's requests for information, forcing analysts to rely largely on public reports.
The report highlights a severe depletion of antimissile interceptors, with estimates suggesting the U.S. has used between half and two-thirds of its inventory since June 2025. Rebuilding these stocks could take at least five years even at accelerated procurement rates. The CBO also noted that higher energy costs from disruptions in the Strait of Hormuz and Red Sea contributed to over 40 percent of inflation in personal consumption expenditures during the second quarter of 2026.
This report could shape public perception of the war's true financial burden, potentially influencing voter sentiment ahead of upcoming elections. The munitions shortfall may affect U.S. military readiness and strategic deterrence, particularly regarding potential conflicts with China. Families of service members and veterans could face delayed or reduced benefits if future costs materialize. Energy price inflation from the conflict may continue pressuring household budgets, while taxpayers ultimately bear the long-term costs of replenishing depleted weapons and rebuilding damaged facilities.