Defense Secretary Pete Hegseth Estimates Iran War Cost at $37.5 Billion, Seeks Supplemental Funding

On July 21, 2026, Defense Secretary Pete Hegseth told the Senate Appropriations Committee that the United States’ war with Iran has cost $37.5 billion to date, covering “certain aspects” of the conflict and projected expenses through Sept. 30. He and Chairman of the Joint Chiefs Gen. Dan Caine urged Congress to approve an $67 billion supplemental request to fund the war through the end of the fiscal year.

The Hindu

Hostilities resumed on Feb. 28 after a fragile cease-fire collapsed in early July. Earlier estimates ranged from $25 billion to nearly $29 billion; the new figure adds roughly $8 billion. The conflict has produced nightly strikes, attacks on commercial vessels in the Strait of Hormuz, and retaliatory hits on U.S. bases across the Gulf.

US War Secretary Hegseth puts cost of Iran war at USD 37.5 billion so far

• $37.5 billion – total cost reported, including projected expenses through Sept. 30.

US War Secretary Hegseth puts cost of Iran war at USD 37.5 billion so far

• $67 billion – supplemental funding described as “urgent, necessary.”

The Hindu

• $1.5 trillion – defense budget sought for FY 2027.

U.S. Defense Secretary: Cost of War with Iran Reaches 55.5 Trillion Won So Far

• 18 U.S. service members killed and ? 430 wounded since the restart.

US War Secretary Hegseth puts cost of Iran war at USD 37.5 billion so far

Hegseth called the $37.5 billion figure a “partial” tally, noting that some line items are actual outlays while others are projections. Gen. Caine echoed the urgency, labeling the funding “necessary” to maintain combat effectiveness. Hegseth also said $75 billion of unspent funds from the prior year are earmarked for other priorities, such as hypersonic weapons development.

The Hindu

Democratic Senator Jeanne Shaheen questioned why the public should bear the cost when unspent reconciliation funding exists. Senator Patty Murray warned the request would bankroll “another forever war.” Republican Senator John Kennedy asked for “hard answers” about the consequences of a U.S. withdrawal from the Strait of Hormuz.

The Hindu

A CBS News report citing Democratic sources claimed the actual cost is “much higher,” while Reuters noted that the Pentagon’s calculation method for the $37.5 billion figure remains unclear. No detailed breakdown was provided during the hearing.

Pentagon puts cost of US war in Iran at $37.5bn

• “The estimate we have as of today is $37.5 billion,” — Pete Hegseth

The Hindu

• “Without these funds, we face critical shortfalls,” — Pete Hegseth

Iran war has cost the US $37.5 billion, says Pete Hegseth, defends 'urgent' funding

The disclosed cost and supplemental request place the Iran war at the center of the 2027 defense-budget debate, forcing Congress to balance war-time spending against broader fiscal priorities. Regional implications persist, as airstrikes continue to target Iran’s ability to threaten commercial shipping in the Strait of Hormuz while diplomatic efforts to revive a cease-fire remain stalled.

US Defense Chief Says Iran War Has Cost $37.5 Billion, Warns of Training Cuts