“My kids’ kids, and probably their kids, are going to be paying for this,” said one official briefed on the U.S war on Iran.

By Nick Turse, The Intercept

The Trump administration is drastically undercounting the price tag of the U.S. war with Iran, peddling fragmentary estimates that offer Americans a skewed understanding of the costs.

The Pentagon on Thursday said the U.S. spent about $11.3 billion in just one week of its war on Iran; Trump economic adviser Kevin Hassett similarly put the figure at $12 billion on Sunday.

President Donald Trump holds a cabinet meeting, Tuesday, Washington, D.C. USA December 2, 2025

But these sums are dwarfed by estimates offered by experts in the costs of war, lawmakers experienced with the Pentagon budget, and two government officials briefed on Operation Epic Fury who spoke on the condition of anonymity.

At the very least, they say the war is burning through between $1 billion and $2 billion per day — or roughly $11,500 to $23,000 per second. The cost, the officials told The Intercept, could rise to a quarter trillion dollars or more over the coming months.

Even that is a drop in the bucket compared to the long-term expenses, which could cost the U.S. trillions of dollars in the decades to come. One of the officials lamented that Americans would be paying off the war for generations.

“If this war takes months rather than weeks, the costs will become astronomical,” said Gabe Murphy, a policy analyst at Taxpayers for Common Sense, a nonpartisan budget watchdog advocating for an end to wasteful spending,

Jules Hurst III, the War Department’s acting comptroller and chief financial officer, called the Pentagon’s initial $11.3 billion estimate a “ballpark number,” speaking at the Reagan Institute’s National Security Innovation Base Summit. Hurst said a more comprehensive figure would be provided with a supplemental budget request, which he said the Pentagon plans to soon submit to the White House and Congress.

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