What the Iran War Really Costs You. It's Not $38 Billion.

02Method

What we count

Every line is a cost to the United States: to the federal government, or to the households and businesses that paid it. The period runs from the first strikes on Feb 28, 2026 to Oct 26, 2026, the last week of EIA fuel prices published before the video's release. Two costs that are already locked in but will be paid later, care for the wounded and interest on the borrowed money, are listed separately as "still to come".

CBO itself warns that its own estimates for each category are "not directly comparable or summable" [1]. CBO doesn't add these up. We did. The total is our own analysis, and every step is in the spreadsheet.

Labels

• Observed A figure published by an official source (here: CBO's estimate through Aug 1).
• Analysis Our own calculation from published data, or the midpoint of a published estimate range.
• Scenario A forward-looking or contested estimate. Uncertain by nature.

Why the official number is $38 billion, and why it's not the bill

On Sep 15, 2026, CBO estimated that combat operations against Iran cost the Department of Defense about $38.1 billion through Aug 1: $21.7 billion to replace munitions (of which $13.1 billion for missile-defense interceptors and $7.3 billion for long-range cruise missiles), $10.4 billion for flying hours above a normal year, $2.7 billion for higher fuel prices, $1.5 billion for other operations and $1.9 billion for equipment lost in battle ($3.3 billion under CBO's alternative method) [1]. CBO built the estimate from government databases and public reports, because, in its words, DoD did not respond to its requests for information.

That number is careful work, and it is our line one. But it:

• covers one payer, the Pentagon, and stops on Aug 1;
• leaves out damage to U.S. bases, which CBO could not price without DoD data;
• leaves out what households and businesses paid for gasoline and diesel;
• leaves out costs that arrive later: care for the wounded and interest on the borrowing.

The $87.6 billion supplemental request the White House sent Congress in June is not on the receipt. CBO found that only about $42 billion of it appears directly related to the war [1], Congress had not passed it as of late October [2], and adding it would double count the military line.

Line by line

Military operations. CBO's $38.1 billion through Aug 1, plus CBO's estimate of $2 billion to $3 billion for every further month. We take the middle, $2.5 billion, for the 86 days from Aug 1 to Oct 26 (2.83 months): about $7.1 billion more, $45.2 billion in total [1]. Cross-check: the Pentagon's own running total, given to lawmakers, was $47.1 billion through Oct 16, excluding base damage [2].

Damage to bases. CSIS estimates $4.0 to $9.4 billion [3]. We count the midpoint, $6.7 billion. Some repairs may be paid by the countries hosting the bases [1].

Gasoline and diesel. For every week of the war we take the government's own retail price, subtract the price in the week before the war, and multiply the difference by how much fuel the country actually burns:

extra spend ($B) = (weekly price − pre-war price) × consumption (million barrels/day) × 42 gallons × days ÷ 1,000

• Prices: EIA weekly U.S. regular gasoline and on-highway diesel [5] [6]. Pre-war price (week of Feb 23, 2026): gasoline $2.937, diesel $3.809 per gallon. Latest week (Oct 26): gasoline $4.269, diesel $6.352. Gasoline peaked at $4.50 (May 11), diesel at $6.529 (Sep 21).
• Volumes: EIA Short-Term Energy Outlook, October 2026, by quarter [7]: motor gasoline 8.57 / 8.90 / 8.85 / 8.66 million barrels a day (about 370 million gallons a day), total distillate 4.22 / 4.01 / 3.98 / 4.16. Q3 and Q4 are partly forecast.
• Diesel share: we count 75% of distillate, the share used in transportation [8]; the rest is heating oil, rail, marine and other uses.
• Weeks: each Monday price stands for the seven days ending that Monday; the first reading (Mar 2) covers Feb 28 to Mar 2. That is 35 weekly readings and 241 days.

Result, central: gasoline $105.3 billion (about $781 per household), diesel $51.8 billion.

Still to come. CSIS estimates about $0.4 billion a year for the medical care and disability of the wounded, about $12 billion over 30 years, and expects most of it to come later [3]. Taxpayers for Common Sense estimates $10.9 to $26.9 billion in extra federal interest over the next decade [4]; we take the middle, $18.9 billion. Together: $30.9 billion.

Higher interest rates (high case only). In September the Federal Reserve raised rates for the first time since 2023. Its statement mentions "geopolitical developments", and Chair Kevin Warsh named geopolitics as one of three reasons, next to stubborn inflation and a strong economy [15] [16]. The Fed did not say it raised rates because of the war. Moody's Analytics counts about $540 per household from higher rates as a war cost [13]. We don't in our main number; it goes into the high case only (134.79 million households × $540 = $72.8 billion).

Three versions

Cautious: gasoline baseline assumes the pre-war run-up would have continued; diesel baseline is the week of Mar 2 (already partly affected by the war); 60% is an older EIA on-highway share [9]; volumes trimmed a further 3%. High: baseline is the average price of Jan 5 – Feb 23, 2026; all distillate counted; plus the Moody's interest-rate cost.

Per household and per week

Per-household figures divide the national total by 134.79 million U.S. households (Census, 2025) [10]: $239.8 billion ÷ 134.79 million = $1,779. That is an average, not a bill any single household received. If you commute an hour each way in a pickup truck, your share is bigger; if you take the subway, smaller. Of the $1,779, about $1,550 is already paid; the rest is still to come.

The weekly growth uses the latest week: the war markup on gasoline ($3.39B) and diesel ($2.33B) at the Oct 26 prices, plus $2.5 billion a month of military operations ($0.58B a week): $6.30 billion a week, $46.73 per household.

Cross-checks (not added)

• Pentagon's own figure: $47.1 billion through Oct 16, excluding base damage [2]. Our military line: $45.2 billion through Oct 26.
• Brown University's independent fuel tracker: $147.8 billion for gasoline and diesel as of Oct 30, four days past our end date [11] [12]. Ours: $157.0 billion, 6.3% higher, within ten percent.
• Moody's Analytics (Mark Zandi, Oct 12): about $265 billion, nearly $2,000 per household, including energy, interest rates and military spending [13] [14]. That sits inside our range.

What could be wrong

• The pre-war baseline is the biggest assumption. Maybe prices would have crept up anyway. Depending on the baseline, the gasoline line runs from $88.0 to $112.3 billion.
• Not all of the fuel markup is lost to the country. The U.S. is a net exporter of petroleum, so part of what drivers paid stayed in the American economy as income for producers, refiners and shareholders. The receipt counts what households and businesses paid, not the net loss to the economy.
• Fuel volumes for the third and fourth quarter are partly an EIA forecast.
• The military line after Aug 1 is an extrapolation of CBO's monthly range; DoD gave CBO no data.
• Base damage has no official figure. Host countries may pay part of it.
• Veterans' care rests on one estimate (CSIS), stated as a nominal 30-year sum, not discounted. Some injuries, like brain injuries from blasts, only show up years later.
• Interest rests on one estimate (Taxpayers for Common Sense). We found no CBO estimate of war-related interest.
• Much higher long-run estimates exist. Harvard's Linda Bilmes expects the war to cost more than $1 trillion eventually [27], counting decades of veterans' care, restocking and interest that we do not model.

Heating oil and other costs we left out

About 3% of American homes still heat with oil: about 4.1 million households, 3.4 million of them in the Northeast. EIA expects heating oil prices this winter to be more than 30% higher than last winter (+34%), and those households to spend about a fifth more (+21%). Homes that heat with natural gas are expected to spend about 9% less [17]. Because the winter is still ahead, this is not on the receipt. The same goes for jet fuel and airfares, food prices beyond the diesel line, and lost economic output: real costs, but without a defensible number for this war.

03The strongest case for the war

A bill alone doesn't tell you whether something was worth it. These are the strongest arguments we found from supporters of the war, with the evidence for and against.

04Downloads

The complete calculation, in English, with every formula intact. Change any assumption and the totals recalculate.

Version 2, data as of October 30, 2026. Blue cells are inputs, yellow cells key assumptions, black cells formulas.

05Sources

"Accessed" is the date we last opened the source while researching. Some publishers block automated access; the links are the addresses we used.

1. [1]Congressional Budget Office, “Estimating the Cost of Combat Operations Against Iran,” letter to Rep. Brendan F. Boyle, Sep 15, 2026 (publication 62756; PDF 19 pages).
   https://www.cbo.gov/publication/62756
   Accessed Oct 19, 2026. Used for: $38.1B through Aug 1 and its components; $2–3B per month afterwards; base damage not priced; DoD did not respond; “not directly comparable or summable”; $87.6B supplemental, about $42B war-related.
2. [2]CBS News, report on the CENTCOM cost estimate provided to lawmakers ($47.1B as of mid-October), Oct 27, 2026.
   https://www.cbsnews.com/news/iran-war-cost-centcom-47-billion/
   Accessed Oct 30, 2026. Used for: Pentagon cross-check ($47.1B through Oct 16, excludes base damage); supplemental not passed.
3. [3]CSIS (Mark F. Cancian, Chris H. Park), “The War May Be Ending. What Did Epic Fury Cost?”, Jun 23, 2026.
   https://www.csis.org/analysis/war-may-be-ending-what-did-epic-fury-cost
   Accessed Oct 30, 2026. Used for: Base damage $4.0–9.4B; veterans' care about $0.4B a year, about $12B over 30 years; Iranian attacks down 80–90% in the later phase.
4. [4]Taxpayers for Common Sense, analysis of the direct and indirect taxpayer costs of the Iran war, 2026.
   https://www.taxpayer.net/national-security/direct-indirect-taxpayer-costs-of-the-iran-war/
   Accessed Oct 19, 2026. Used for: Extra interest $10.9–26.9B over 10 years.
5. [5]U.S. Energy Information Administration, Weekly U.S. Regular All Formulations Retail Gasoline Prices (EMM_EPMR_PTE_NUS_DPG).
   https://www.eia.gov/dnav/pet/hist/LeafHandler.ashx?n=pet&s=emm_epmr_pte_nus_dpg&f=w
   Accessed Oct 30, 2026. Used for: Weekly gasoline prices Jan 5 – Oct 26, 2026.
6. [6]U.S. Energy Information Administration, Weekly U.S. No 2 Diesel Retail Prices (EMD_EPD2D_PTE_NUS_DPG).
   https://www.eia.gov/dnav/pet/hist/LeafHandler.ashx?n=pet&s=emd_epd2d_pte_nus_dpg&f=w
   Accessed Oct 30, 2026. Used for: Weekly diesel prices Jan 5 – Oct 26, 2026.
7. [7]U.S. Energy Information Administration, Short-Term Energy Outlook, October 2026, Table 4a.
   https://www.eia.gov/outlooks/steo/pdf/steo_full.pdf
   Accessed Oct 19, 2026. Used for: U.S. motor gasoline and distillate consumption by quarter (Q3/Q4 partly forecast).
8. [8]U.S. Energy Information Administration, Energy Explained: Use of diesel.
   https://www.eia.gov/energyexplained/diesel-fuel/use-of-diesel.php
   Accessed Oct 19, 2026. Used for: Transportation about 75% of U.S. distillate use (2022), central diesel share.
9. [9]U.S. Energy Information Administration, This Week in Petroleum, Feb 27, 2013.
   https://www.eia.gov/oog/info/twip/twiparch/2013/130227/twipprint.html
   Accessed Oct 19, 2026. Used for: About 60% on-highway share of distillate (cautious case).
10. [10]U.S. Census Bureau, Current Population Survey (ASEC), Total Households (TTLHH), via FRED, Federal Reserve Bank of St. Louis.
    https://fred.stlouisfed.org/series/TTLHH
    Accessed Oct 19, 2026. Used for: 134.79 million U.S. households (2025).
11. [11]Brown University, Watson School, Iran war fuel cost tracker.
    https://iranwarcost.watson.brown.edu/
    Accessed Oct 30, 2026. Used for: Cross-check: $81.50B gasoline + $66.26B diesel = $147.8B (as of Oct 30).
12. [12]Brown University Climate Solutions Lab, news release on U.S. energy costs of the Iran war, Sep 8, 2026.
    https://climate.watson.brown.edu/news/2026-09-08/us-energy-costs-iran-war
    Accessed Oct 19, 2026. Used for: Method of the Brown tracker (actual prices vs. a no-war counterfactual × EIA consumption).
13. [13]TFTC, report on the Moody's Analytics estimate by Mark Zandi (Oct 12, 2026): nearly $2,000 per household.
    https://www.tftc.io/iran-war-cost-2000-per-household-moodys-zandi
    Accessed Oct 19, 2026. Used for: Moody's: about $265B, nearly $2,000 per household; about $540 per household from higher interest rates.
14. [14]Fortune, Moody's estimate of the Iran war's cost per U.S. household, Oct 17, 2026.
    https://fortune.com/2026/10/17/iran-war-cost-us-household-2000-energy-prices-interest-rates-military-spending/
    Accessed Oct 19, 2026. Used for: Breakdown of the Moody's estimate (energy, interest rates, military).
15. [15]Board of Governors of the Federal Reserve System, FOMC statement, Sep 16, 2026.
    https://www.federalreserve.gov/newsevents/pressreleases/monetary20260916a.htm
    Accessed Oct 19, 2026. Used for: Rate hike; statement cites “geopolitical developments”, not the war.
16. [16]Federal Reserve, transcript of Chair Warsh's press conference, Sep 16, 2026.
    https://www.federalreserve.gov/mediacenter/files/FOMCpresconf20260916.pdf
    Accessed Oct 19, 2026. Used for: Geopolitics named as one of three reasons.
17. [17]U.S. Energy Information Administration, STEO Perspectives: Winter Fuels Outlook, Oct 6, 2026.
    https://www.eia.gov/outlooks/steo/report/perspectives/2026/10-winterfuels/article.php
    Accessed Oct 30, 2026. Used for: Heating oil: about 3% of households (4.1 million, 3.4 million in the Northeast); prices +34%, spending +21% this winter; natural gas homes −9%.
18. [18]U.S. Department of Defense, Defense Casualty Analysis System (DCAS), casualty summary (data extraction Oct 29, 2026).
    https://dcas.dmdc.osd.mil/dcas/api/report/casualtySummary/monthly/oefu
    Accessed Oct 30, 2026. Used for: 23 U.S. service members died (11 combat, 12 non-combat), 865 wounded.
19. [19]Al Jazeera, US-Israel attacks on Iran: death toll and injuries live tracker (last update Jun 10, 2026).
    https://www.aljazeera.com/news/2026/3/1/us-israel-attacks-on-iran-death-toll-and-injuries-live-tracker
    Accessed Oct 19, 2026. Used for: Iran's health ministry: at least 3,468 killed by June.
20. [20]Council on Foreign Relations, article by CFR president Michael Froman on the Iran war, Oct 16, 2026.
    https://www.cfr.org/articles/the-victory-of-asymmetry-in-the-iran-war
    Accessed Oct 30, 2026. Used for: “fewer military capabilities and a more strained economy”; Hormuz as “a powerful economic weapon”.
21. [21]The Times of Israel, report on a U.S. intelligence assessment that about half of Iran's missile launchers were still intact, Apr 3, 2026 (citing CNN).
    https://www.timesofisrael.com/us-intelligence-said-to-assess-around-half-of-irans-missile-launchers-still-intact/
    Accessed Oct 19, 2026. Used for: About half of the launchers reportedly intact (April).
22. [22]Alaska Public Media, report on President Trump's campaign rally in Alaska, Oct 16, 2026.
    https://alaskapublic.org/news/politics/elections/2026-10-16/in-alaska-campaign-rally-trump-and-sullivan-say-iran-war-is-worth-the-cost-to-americans
    Accessed Oct 19, 2026. Used for: “It's a small price to pay” quote.
23. [23]The Washington Institute for Near East Policy (Robb, Ross), policy analysis on the economic cost of a nuclear Iran, Dec 17, 2012.
    https://www.washingtoninstitute.org/policy-analysis/economic-cost-nuclear-iran
    Accessed Oct 19, 2026. Used for: Scenario: U.S. GDP down up to about 2.5% after three years.
24. [24]Institute for Science and International Security, analysis of the IAEA Iran verification and NPT safeguards reports, June 2026.
    https://www.isis-online.org/isis-reports/analysis-of-iaea-iran-verification-and-monitoring-and-npt-safeguards-reports-june-2026
    Accessed Oct 19, 2026. Used for: 2025 strikes destroyed the centrifuge enrichment program (assessment).
25. [25]JNS, report on the IAEA's June 2026 Iran report, Jun 5, 2026.
    https://www.jns.org/news/world/iaea-cant-provide-any-information-on-tehrans-enriched-uranium
    Accessed Oct 30, 2026. Used for: IAEA June report: size, composition and whereabouts of the stockpile unknown.
26. [26]La Voce di New York, report on IAEA Director General Grossi's briefing to the UN Security Council (Oct 27), Oct 29, 2026.
    https://lavocedinewyork.com/en/un/2026/10/29/iaea-cannot-verify-status-of-irans-440kg-uranium-stockpile/
    Accessed Oct 30, 2026. Used for: 440 kg of 60% uranium still not verifiable; no access to the bombed sites.
27. [27]Fortune, report with Linda Bilmes (Harvard) on the long-run cost of the Iran war, Apr 15, 2026.
    https://fortune.com/2026/04/15/how-much-will-iran-war-cost-taxpayers-us-1-trillion-dollars/
    Accessed Oct 19, 2026. Used for: Higher long-run estimate: more than $1 trillion eventually.
28. [28]CBS News, text of the U.S.-Iran memorandum of understanding (readout), June 2026.
    https://www.cbsnews.com/news/us-iran-deal-memorandum-of-understanding-text/
    Accessed Oct 19, 2026. Used for: $300B reconstruction plan with no named payer.