Affordability is getting worse, especially if you have to drive to work or anywhere else.

By late September, the total cost of the higher gas and diesel prices triggered by President Donald Trump’s war against Iran exceeded $103 billion, according to my organization’s analysis of the federal government’s energy data. And those higher prices aren’t showing any sign of slowing. If current trends hold, the price tag by the end of this year will approach $180 billion.

For the average household, that comes out to $750 extra so far, and that figure is on pace to top $1,300 by year’s end.

If life feels more expensive today, that’s because it is.

For a family of four with two drivers, those costs are even higher, topping $1,000 already and slated to be over $1,700 by the end of the year if the war continues. Our interactive tool, online at itep.org/iran-war-fuel-cost, lets you punch in your region and household size to get a sense of how much your family’s costs are rising.

To be clear, this isn’t the cost of the weapons and soldiers fighting the war, which the Pentagon estimates to be around $44 billion. This is the higher cost you’re paying to fill up your gas tank and to buy products that cost more to move.

In a normal year, fall is when drivers get some reprieve at the pump. As summer travel winds down, demand for gas falls, and prices should fall too. But not in 2026.

According to AAA, Americans have never paid this much for gas at this time of year. The national average gas price is $4.47 per gallon as of this writing, and a growing number of states are seeing average prices top $5 per gallon.

Equally troubling is the sky-high price of diesel fuel, which has hit........

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