The Iran War Cost Discrepancy: $25 Billion vs. $1 Trillion

The Stark Divide in War Cost Estimates

United States Defense Secretary Pete Hegseth has clashed with American lawmakers over the cost of war on Iran in his first appearance on Capitol Hill since the conflict – now into its third month – broke out. The Pentagon told a hearing of the House Armed Services Committee that the US had spent $25bn on its war on Iran, largely on munitions and equipment maintenance. But Democratic leaders and several economists believe that number to be a significant underestimate, with actual costs potentially reaching between $630bn and $1 trillion.

The Pentagon's Limited Financial Disclosure

The Pentagon's acting comptroller, Jay Hurst, who testified alongside Hegseth and Joint Chiefs of Staff Chairman Dan Caine, presented the estimated figure of $25bn to the committee. "We will formulate a supplemental [on additional funding], through the White House, that will come to Congress once we have a full assessment of the cost of the conflict," Hurst said, promising to provide a cost breakdown later.

The estimated figure only reflects "the costs of the war," Hurst explained, factoring in "munitions expended in that total and other operational costs." This figure is significantly smaller than the $200bn initially requested by the Trump administration for the war and the $11.3bn reported for just the first six days of fighting in March.

The Economic Ripple Effects Beyond Direct Military Spending

As the US continues with its blockade of Iranian ports and Tehran controls the Strait of Hormuz, gas prices in the US have hit a new high at $4.23 a gallon – the highest since 2022, when Russia invaded Ukraine. The Brent crude benchmark has been trading above $120, leading to a 40 percent rise in gas prices compared to pre-war levels.

Representative Ro Khanna claimed the war would cost about $631bn – or some $5,000 per household – to the US economy due to increased gas and food prices. "Your $25bn number is totally off," Khanna told Hegseth, highlighting the administration's failure to account for broader economic impacts.

The rising cost of living has also affected Trump's approval rating, hitting a record low in his second term with only 22 percent of Americans approving of his handling of cost of living, according to a Reuters/Ipsos poll.

Hidden Costs of War: Infrastructure and Long-term Implications

The US claimed earlier that it struck more than 13,000 targets over the first 39 days of fighting with Iran. For context, the US fired more Patriot missiles in the first four days of the Iran war than it supplied to Ukraine over the past four years, with each missile costing $4m.

However, the economics and impact of the war extend far beyond the worth of bombs and missiles. One major expense is reconstructing and repairing damaged assets. After the US-Israeli strikes assassinated former Supreme Leader Ali Khamenei, Iranian strikes caused damage to US military camps in Kuwait, alongside other military bases in the UAE, Saudi Arabia, Jordan, and Bahrain.

Earlier this month, NBC News quoted six US officials noting that Iran damaged US military bases and equipment in the Middle East far worse than publicly acknowledged. The damages alone could lead to billions of dollars in repairs, with one report estimating that repairs to the US Navy Fifth Fleet headquarters in Bahrain could cost $200m alone.

Historical Precedents and Future Projections

Harvard economist Linda Bilmes had estimated in February 2006 that the Iraq war would cost the US $3 trillion, when the George Bush administration was telling the public that fighting would cost $50bn. Twenty years later, Bilmes ended up with among the most accurate predictions, as the Iraq war's total cost is now estimated at $2 trillion.

"Wars always cost more than expected. Throughout history, those who get into wars tend to be optimistic about the cost and about the length of time it will take," Bilmes noted. "It is hard to measure the exact cost. But based on what we know now, it [the current Iran war] is costing about $2bn a day in short-term, upfront costs, which is the tip of the iceberg."

Beyond immediate expenses, Bilmes highlighted long-term costs including veterans' care and restocking weapons inventory. "I am certain we will reach one trillion dollars for the Iran war," she concluded. Meanwhile, the Trump administration has asked for a $1.5 trillion defense budget for next year – a 42 percent increase, or the largest expansion in military spending since World War II.