# Iran conflict costs $3B monthly, $38B total so far

> A budget watchdog reveals the mounting price tag of military action Trump calls 'small potatoes.'
- Title: Iran conflict costs $3B monthly, $38B total so far · Fortune
- Summary: A budget watchdog reveals the mounting price tag of military action Trump calls 'small potatoes.' The Iran conflict costs $2-3 billion monthly and has…
- Keywords: iran, trump, congressional budget office, department of defense, military spending, middle east conflict, pete hegseth, j.d. vance, moody's analytics, mark zandi, oil prices, defense costs
- Source: Fortune — https://fortune.com/2026/09/16/trump-iran-conflict-congressional-budget-office-cost-estimate
- Author: Eleanor Pringle
- Read time: 1 min
- Topics: iran, trump, congressional budget office, department of defense, military spending, middle east conflict, pete hegseth, j.d. vance, moody's analytics, mark zandi, oil prices, defense costs
## Iran conflict hits $38 billion
The Congressional Budget Office reports the armed conflict with Iran has cost the Defense Department $38 billion as of August 1, 2026.
## What the money pays for
Costs include replacing munitions and equipment lost in battle, plus increased flying hours, fuel costs, and other operations.
## Monthly costs keep climbing
If tensions stay low, the conflict requires $2 billion monthly. If violence escalates to July levels, costs jump to $3 billion a month.
## Trump calls it small potatoes
The president insists it's not a war but a military conflict, noting 18 U.S. deaths versus much higher tolls in Iraq and Afghanistan.

> A lot of people don't call it a war, I call it a military conflict because it's small potatoes for us, it's not a thing.
## Households paying $750 each
Moody's estimates the war costs American households $750 each, or $100 billion total, through higher military spending and oil prices.
## Key takeaway

The Iran conflict costs $2-3 billion monthly and has already cost $38 billion, with significant economic impacts on households.