US war on Iran costs exceed $47 billion, Pentagon data shows

U.S. war on Iran now costs more than $47 billion

According to Pentagon records secured by Reuters on October 27, American expenditures for the conflict in Iran have surpassed $47 billion, a total that exceeds the Department of Defence's projected $37 billion by more than 25 percent.5 billion published in July. The new estimate, released to lawmakers, breaks the total into several components: about $29 billion for replacing expended munitions, $6.1 billion for lost equipment and roughly $11.9 billion in incremental costs such as support for service members. The figures were provided to U.S. Central Command and are not yet public. The Pentagon’s inspector general has cautioned that the rapid consumption of munitions has led to strategic inventory shortfalls.

Background

The conflict, which entered its ninth month in late October, began after a series of escalations between U.S. forces and Iranian-backed militias in the Persian Gulf. The U.S. has conducted air strikes, naval patrols and drone operations against Iranian targets. In early summer, the U.S. and Iran engaged in a brief exchange of attacks that has since quieted. Defense Secretary Pete Hegseth had told lawmakers in July that the war had cost about $37.5 billion, excluding damage to U.S. bases. The Congressional Budget Office previously projected that the war would incur monthly costs between $2 billion and $3 billion if it persisted, primarily because of the requirement to replenish interceptor missiles. President Donald Trump has hinted that he might resume hostilities after the November 3 mid‑term elections unless Iran agrees to a deal. He has also warned that the U.S. could launch another “little Epic Fury” if the situation deteriorates.

Why it matters

The rising cost of the war has political repercussions. The conflict has pushed global energy prices higher, which has hurt Republican support ahead of the November elections. The U.S. President’s approval ratings have slipped, and the narrow Republican majority in both houses of Congress is under pressure. The Pentagon’s latest estimate shows that the bulk of the expense is tied to replacing munitions and equipment. The $29 billion earmarked for munitions replacement reflects the high consumption rate of air‑to‑ground and air‑to‑air weapons. The $6.1 billion for lost equipment includes aircraft and drones destroyed during the conflict. The Congressional Budget Office’s monthly cost estimate of $2 billion to $3 billion could rise if the U.S. and Iran resume a tit‑for‑tat exchange, which has been quiet in recent weeks.

What happens next

The Pentagon has not yet released the full report to the public, and it has not responded to requests for comment. The new figures have been shared with lawmakers, and it is unclear whether Congress will take further action. The conflict’s future remains uncertain, with President Trump indicating that he may consider restarting operations after the mid‑term elections. The Pentagon’s inspector general has highlighted inventory shortfalls, suggesting that the U.S. may need to accelerate procurement of munitions and equipment to sustain operations.