Iran war cost hits $38 billion, forecast to rise $3 billion a month, CBO says
WASHINGTON, Sept 15 (Reuters) - The six-month-old U.S. war against Iran has cost $38 billion so far and that amount is projected to rise by $3 billion a month, Congress' nonpartisan bookkeeper reported on Tuesday, as the Trump administration searches for ways to end the conflict and reopen the vital Strait of Hormuz.
By ReutersSouth Africa

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WASHINGTON, Sept 15 (Reuters) - The six-month-old U.S. war against Iran has cost $38 billion so far and that amount is projected to rise by $3 billion a month, Congress' nonpartisan bookkeeper reported on Tuesday, as the Trump administration searches for ways to end the conflict and reopen the vital Strait of Hormuz.
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- 53 words · 1 min read
- Published
- September 15, 2026
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- Reuters
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- Daily Maverick