Sunday, 20 September 2026

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US Accumulates $40 Billion in Costs from War with Iran

The war with Iran has accumulated **$40 billion** in costs for the United States, raising inflation and military spending in an election year.

Álvaro Sáez Ferrer
Álvaro Sáez Ferrer
· 2 min read

The war with Iran has generated a cost of **$40 billion** for the United States, according to the Congressional Budget Office. This conflict has increased inflation and military spending in an election year.

The United States has faced a bill of **$40 billion** for the conflict with Iran, according to the Congressional Budget Office, which warns that this is equivalent to five years of ammunition. The war, which began as a quick operation, has dragged on for more than six months.

From **February 28** to **August 1**, spending reached **$38 billion**, and it is estimated that each additional month will cost approximately **$3 billion** more. By mid-September, the figure is expected to exceed **$40 billion**.

The largest expenses come from ammunition consumption, which totals **$21.7 billion**, including **$7.3 billion** for cruise missiles and **$13.1 billion** for defence interceptors. Additionally, the increase in flight hours has cost **$10.4 billion**.

The report also highlights a **$2.7 billion** increase in fuel expenses and the need to replace lost equipment worth **$1.9 billion**. This conflict is expected to maintain inflationary pressures, increasing inflation by half a point.

The CBO concludes that the reduction in oil and natural gas shipments through the Strait of Hormuz has contributed to this rise in global energy prices. This will have a prolonged impact on inflation, which could remain elevated until early **2027**.

Álvaro Sáez Ferrer

Written by

Álvaro Sáez Ferrer

Redactor

Economista por ICADE y una de las pocas personas que disfruta leyendo la ley de presupuestos. Cafetero, padre a tiempo completo y azote de la letra pequeña; en Iber Empresa escribe de economía y fiscalidad.