U.S. Spends Over $11 Billion in First Week of Iran War

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The first week of the U.S. war with Iran cost around $11.3 billion, military officials told members of Congress in a briefing this week, according to sources familiar with the meeting. This figure is a low-end estimate and does not include the build-up costs of moving assets into place ahead of the operation's start on Feb. 28. The war's daily cost is estimated to be well over $1.5 billion, and the cost of replacing munitions used is likely already beyond $10 billion.

Why it matters

The high initial costs of the war with Iran have raised concerns among lawmakers, who are seeking more details from the administration on the overall scope and goals of the military campaign before approving additional funding. The war's price tag could have significant implications for the federal budget and other priorities.

The details

According to the briefing, the $11.3 billion figure covers only the first week of the conflict, which began on February 28. This does not include the costs of the military buildup in the region prior to the start of hostilities. Estimates suggest the daily cost of the war is well over $1.5 billion, and the price of replacing munitions used has already exceeded $10 billion. The Pentagon has not provided public figures on the overall cost of the war.

• The war began on February 28, 2026.
• The $11.3 billion figure covers only the first week of the conflict.

What they’re saying

What’s next

The Trump administration is expected to request a supplemental funding package from Congress to cover the cost of the war, though the exact size of the request is unclear. Lawmakers have indicated they will need more details from the administration about the overall cost and goals of the military campaign before approving additional funding.