Average state tax rates for retail gasoline and diesel fuel flat since January 2024

As of July 1, 2024, state taxes and fees on gasoline and diesel fuel averaged $0.33 per gallon (gal) of gasoline and $0.35/gal of diesel fuel, according to our federal and state motor fuel taxes table. Since January 2024, both the gasoline and diesel average taxes have remained nearly flat, increasing less than half of one cent each.