Iran war could cost $2 billion per month, Congressional Budget Office estimates
Updated on: September 15, 2026 / 4:15 PM EDT / CBS News
TL;DR
- The war with Iran is estimated to cost $2 billion to $3 billion per month.
- Direct costs to the U.S. by August 1st were approximately $38 billion.
- The war has depleted between one-half and two-thirds of the U.S. inventory of interceptor missiles.
- Replacing munitions and equipment is estimated to cost $21.7 billion and $1.9 billion, respectively.
- Concerns about depleted weapons inventories have been downplayed by the White House and the Pentagon.
- A Pentagon inspector general report highlighted "strategic inventory shortfalls" and "industrial base bottlenecks" for munitions resupply.