ERBIL, Kurdistan Region of Iraq - Iranian Foreign Minister Abbas Araghchi said on Friday that “the Pentagon is lying” about the cost of the war with Iran, insisting that the true figure is $100 billion, which is four times higher than the US official estimate.

"The Pentagon is lying. [Israeli Prime Minister] Netanyahu's gamble has directly cost America $100b so far, four times what is claimed," Araghchi wrote on X.

"Indirect costs for U.S. taxpayers are FAR higher. Monthly bill for each American household is $500 and rising fast," he continued, attaching a Gallup chart showing an increase in the number of Americans who say their financial situation is getting worse and White House data on spiralling US national debt.

"Israel First always means America Last."

His remarks contradict statements made by US officials earlier this week. During a congressional hearing on Wednesday, US Under Secretary of Defense Jules Hurst said Washington has spent about $25 billion so far on the war with Iran.

“So approximately at this day, we're spending about $25 billion on Operation Epic Fury. Most of that is munitions,” Hurst told lawmakers, adding that a supplemental budget would be submitted to Congress once a full assessment is completed.

US Defense Secretary Pete Hegseth later disputed that figure during the same hearing, saying current estimates are below $25 billion while declining to give a precise number.

However, officials made claims to US media outlets that the true cost of the war is likely at least $50 billion, with Democratic lawmaker Ro Khanna asserting that the total cost of the conflict could reach over $630 billion when accounting for energy price increases caused by the regional turmoil.

"You don’t know what we paid in terms of the missiles that hit the Iranian school. You don’t know what we’re paying in terms of gas. You don’t know what we’re paying in terms of food," said Khanna, addressing Hegseth.