Mark Zandi, chief economist at Moody's Analytics, estimates the war with Iran has cost the average U.S. household almost $2,000, according to an Associated Press survey of price effects published on Saturday. The AP says the figure breaks into $1,100 of higher energy prices, $540 of higher interest rates and $360 of military costs. Zandi told the AP the energy portion is growing by $50 a week at current fuel prices.
The AP does not set out the assumptions behind the interest-rate and military lines, and we did not find a Moody's release explaining them. It is an economist's estimate, not a measured outcome. It is worth reading for its proportions: more than half is energy, but nearly half is not.
What the pump shows
AAA's national average for regular gasoline on Sunday was $4.2988 a gallon. A year ago it was $3.0408, so by this publication's arithmetic the increase is 41 per cent. Diesel was $6.3224, against $3.6365 a year ago, a rise of 74 per cent. The AP, citing AAA, says the prewar averages were $2.98 for gasoline and $3.76 for diesel, that this is the first October in which regular gas has averaged above $4, and that diesel reached a record $6.53 in September.
Prices are not rising at the moment. AAA shows gasoline down $0.17 from a month ago and down $0.06 from a week ago. Diesel is down $0.13 on the month but up $0.05 on the week. If Zandi's $50 a week holds at today's prices, it adds about $2,600 over a year. That is our arithmetic, not Moody's.
Where it shows up beyond fuel
The AP draws a map of uneven pass-through. Jet fuel averaged $99 a barrel before the war, peaked at $209 in April and was nearly $195 in September, according to International Air Transport Association figures it cites. Airline fares in the consumer price index were about 22 per cent higher in September than a year earlier. On a separate measure, average domestic fares rose from $405 in late 2025 to $445 in April to June, excluding optional fees. United has pulled some December flights and warned of possible further cuts in 2027.
Business costs are higher still. September producer prices show transportation and warehousing costs up 10.2 per cent from a year earlier, with truck and water freight each up 19.3 per cent, the AP reports. Andy Dyer, chief executive of AFS Logistics, told the AP: "We expect fuel to drive elevated transportation costs for the foreseeable future."
The shelf prices have not caught up
The retail picture is quieter. The USDA now expects 2026 grocery prices to rise 2.4 per cent, up from an initial 1.7 per cent. It has also raised its fertiliser cost estimates for major crops by 9 to 13 per cent and its fuel, lubricant and electricity estimates by 33 to 41 per cent. Footwear prices were 3.4 per cent higher in September than a year earlier, the AP says.
Chris Barrett, an economist at Cornell, told the AP he was surprised grocery prices had not risen faster given higher costs for diesel, fertiliser and refrigeration, and suspects retailers are absorbing some increases to avoid alienating customers tired of years of food inflation. Matt Priest, chief executive of the Footwear Distributors and Retailers of America, said "there is a limit to how much additional cost businesses can absorb before those pressures reach consumers."
That is the inference to keep in view. If companies have been eating part of the cost, September's consumer price index, which showed core prices up 2.6 per cent, may understate what arrives later. It is a reading, not a finding.
What to watch
The next tests are data and calendars. The October CPI will show whether the quiet in shelf prices lasts. The Federal Reserve's next meeting runs on 27 and 28 October, and Zandi's $540 interest-rate line depends on what it does next. Heating oil is the other marker: the AP says the Energy Information Administration expects costs to be 21 per cent higher this winter for the roughly 3 per cent of households that heat with oil, mostly in the Northeast, assuming mild weather. The $50 a week will show up in household budgets before it shows up in a statistic.
Sources
- Associated Press, "Retail price impacts from the Iran war are uneven but add up for US households before midterms," 17 October 2026, via ClickOnDetroit: https://www.clickondetroit.com/news/politics/2026/10/17/retail-price-impacts-from-the-iran-war-are-uneven-but-add-up-for-us-households-before-midterms/
- Fortune (republishing the AP), 17 October 2026: https://fortune.com/2026/10/17/iran-war-cost-us-household-2000-energy-prices-interest-rates-military-spending
- AAA, national average gas prices, read 18 October 2026: https://gasprices.aaa.com/
- Federal Reserve, FOMC meeting calendar, 2026: https://www.federalreserve.gov/monetarypolicy/fomccalendars.htm
The Zandi estimate and its three components, the $50 a week figure, the prewar and peak fuel prices, the airfare, grocery, footwear, freight and heating-oil data, and the quotes from Andy Dyer and Matt Priest come from the Associated Press report of 17 October 2026, as republished by ClickOnDetroit and Fortune. The current gasoline and diesel prices and the year-ago, month-ago and week-ago comparisons come from the AAA gas prices page, read on 18 October 2026. The Federal Reserve meeting dates come from the Fed's 2026 calendar. The percentage comparisons to AAA's year-ago figures and the annualised $50 a week are this publication's arithmetic. The AP did not publish Moody's method, and we did not see a Moody's release. The analysis is our own.
Topics moneygasolinedieselairfaresgroceriesinflationhouseholds
