The Indicator from Planet Money

How much is the Iran war costing us?

March 18, 2026

Key Takeaways Copied to clipboard!

  • Estimating the cost of the conflict discussed in \ 
  • is difficult in the moment, with initial daily cost estimates rising significantly from \$900 million to \$1.9 billion per day. 
  • The true long-term costs of war, exemplified by post-9/11 conflicts, include massive underestimated expenses like veterans' healthcare, disability benefits (\$7.3 trillion promised), environmental damage, and interest payments on debt financing. 
  • Financing the war almost entirely through debt, rather than taxes or budget cuts, shifts the financial burden to future generations and may enable sustained, higher future military spending budgets. 

Segments

Initial War Cost Estimates (Unknown)
Copied to clipboard!
  • Key Takeaway: None
  • Summary: None
Unbudgeted Munitions Costs
Copied to clipboard!
(00:02:26)
  • Key Takeaway: Munitions dropped in the conflict are not included in the Department of Defense’s current budget, requiring immediate supplemental funding requests to Congress.
  • Summary: The types of munitions used and damage to bases were higher than initially estimated, contributing to the current expense. When the U.S. drops a bomb, the cost is not covered by the regular budget. The military must immediately ask Congress for replacement funds, regardless of the war’s duration.
Long-Term Cost Projections (Unknown)
Copied to clipboard!
  • Key Takeaway: None
  • Summary: None
Environmental and Financing Costs
Copied to clipboard!
(00:05:03)
  • Key Takeaway: War incurs significant environmental costs from military emissions and damage to oil facilities, financed almost entirely through debt, leading to future interest payments.
  • Summary: The Department of Defense’s 2024 military emissions were 47 million metric tons of CO2 equivalent, larger than many countries’ annual emissions. Unlike past conflicts, current American wars are financed almost entirely through borrowing, creating interest payments that must be repaid. Financing war through debt shifts the burden to future generations, unlike raising taxes which forces immediate public buy-in.
Impact on Future Budgets (Unknown)
Copied to clipboard!
  • Key Takeaway: None
  • Summary: None