How much has the US spent in Iran war?

Iran war costs, lawmakers questions spotlight

Defense Secretary Pete Hegseth faced lawmakers Wednesday as questions continued over the scope and strategy of the U.S. conflict involving Iran.

The key new figure driving scrutiny came from a Pentagon official during testimony: the Pentagon said the Iran war has cost about $25 billion so far. That estimate was presented as the most specific price tag the administration had provided for the military conflict at that stage.

Hegseth’s appearance marked his first time being questioned by lawmakers since the Trump administration launched its Iran-war actions, and it became a focal point for Democratic criticism that the administration has not been transparent enough about the costs and the rationale for its approach.

Lawmakers also used the hearing to challenge the framing of the war itself, including whether it amounts to a “quagmire” or how long the conflict might last. Hegseth pushed back against characterizations he viewed as defeatist and defended the urgency behind the administration’s defense posture.

The $25 billion cost matters beyond Capitol Hill because it links the Iran campaign directly to U.S. fiscal priorities—especially at a moment when the Pentagon is also seeking major budget authority and when markets are reacting to the conflict through energy prices.

With oil moving on Iran-related blockade and escalation headlines, the war’s price tag is part of a broader picture of how military actions translate into real costs for taxpayers and potentially higher costs for consumers.