Economist shreds Trump admin's 'lowball' Iran war cost estimate: 'Possibly trillions'

University of Michigan professor Justin Wolfers on Friday joined a growing number of economists and other critics casting doubt on what he called “the Pentagon’s lowball $25 billion estimate” for the cost of President Donald Trump’s illegal war on Iran.

While testifying before Congress last week alongside US Secretary of Defense Pete Hegseth, Pentagon comptroller Jules “Jay” Hurst offered the $25 billion figure. However, experts have responded with raised eyebrows. Stephen Semler, a senior fellow at the Center for International Policy, estimated that the government spent at least $71.8 billion during the first two months of the war, or around $1.2 billion each day.

Although Trump told Congress last Friday—a key deadline under the War Powers Act—that his assault on Iran had been “terminated,” citing the ceasefire deal reached a month ago after his genocidal threat, the administration has maintained its naval blockade and on Thursday bombed what it claimed were “Iranian military facilities responsible for attacking US forces.”

As the threat of more US bombings of Iran loomed, Wolfers wrote Friday in a New York Times opinion piece that “the Pentagon’s stated number reflects only a narrow accounting of the tab that Operation Epic Fury is running up. It’s the price of the more than 2,000 Tomahawk and Patriot missiles already fired, the warplanes already flown and in some cases lost, and the rest of the gear already chewed through. It does not measure the true cost of the war—including the human toll.”

“Since the start of the war, oil markets have been disrupted, consumer confidence has cratered, the global economy is groaning, and military budgets are growing,” the economist continued. “The toll from this upheaval must be counted in lives disrupted, jobs lost, companies shut down (see: Spirit Airlines), and the income and output sacrificed. The less easily quantified costs—death, disability, and mental health—could become much more dramatic should President Trump send troops into Iran, which still can’t be ruled out.”

As David Dayen, executive editor of The American Prospect, detailed Friday, the war seemingly hasn’t achieved any of Trump and Israeli Prime Minister Benjamin Netanyahu’s shifting objectives:

The Washington Post reported Thursday that the Central Intelligence Agency has privately warned the Trump administration that “Iran can survive the US naval blockade for at least three to four months before facing more severe economic hardship,” and its “analysis might even be underestimating Iran’s economic resilience if Tehran is able to smuggle oil via overland routes.”

The reporting heightened concerns about how long the war may drag on. The International Monetary Fund warned last month that a prolonged conflict could cause a global recession.

Already, the war has “pushed the Federal Reserve Bank into a corner,” and “Wall Street is worried, despite the market touching new highs,” Wolfers wrote Friday. “My estimate—based on the movement of oil prices, along with the S&P 500—is that stocks are about 5% lower than they otherwise would be, suggesting that the war has wiped about $3 trillion off the value of these companies.”

The economist also cited recent research showing that elevated “geopolitical risk leads to lower investment and employment.”

Shortly after launching the war in February, the White House signaled it would need $200 billion for the operation. However, it is now seeking a $1.5 trillion defense budget for the next fiscal year—which Hegseth tried to frame as a fiscally responsible plan that puts “the American taxpayer first” in a widely ridiculed video this week. Wolfers highlighted that the budget request is “a roughly 40% boost over this year. That’s a massive $600 billion increase, or roughly $4,000 per household.”

Like Dayen, Wolfers also pointed to the Iraq War, which economists Linda Bilmes and Joseph Stiglitz estimated cost the US around $3 trillion, after factoring in expenses such as “lifetime medical care and disability benefits for veterans, and the higher recruitment and retention costs that follow a bloody war—all compounded by a rising interest bill.”

“The best any economist can do right now is get the order of magnitude right, and my math suggests the Iran war will cost hundreds of billions of dollars, and very possibly trillions,” Wolfers concluded. “War is hell. And hell comes with a hefty price tag.”