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Macro EconomyMediumUpdated×2•Originally published 16 April 2026•Updated 17 April 2026•
1 min read

U.S. Military Costs Against Iran Surpass $42 Billion in First 40 Days

Key Facts

1Harvard policy expert Linda Bilmes warns that the true cost of a war with Iran would exceed $1 trillion for U.S. taxpayers.
2Projections are based on previous research with economist Joseph Stiglitz showing Iraq War costs were four times higher than initial estimates.

U.S. military operations against Iran have incurred costs exceeding $42 billion within the first 40 days of the conflict, signaling a rapid fiscal drain. Washington spent $11.3 billion in the first six days alone, with current expenditure plans maintaining a burn rate of $1 billion per day. Reported combat losses include the destruction of an F-35A aircraft and damage to the USS Gerald R. Ford aircraft carrier, alongside 13 U.S. troop fatalities and hundreds of injuries. This surge in spending aligns with earlier warnings from Harvard experts regarding the long-term fiscal impact on the $31 trillion U.S. national debt. The high daily cost of operations is expected to exacerbate inflationary pressures and limit federal fiscal flexibility. Consequently, market volatility remains high as investors increasingly turn to Gold and other safe-haven assets amid the escalating geopolitical risk.