U.S. Department of Energy | Office of Energy Efficiency and Renewable Energy U.S. Department of Energy Office of Energy Efficiency and Renewable Energy

Alternative Fuel Tax

Alternative fuels used as vehicle fuel are taxed as follows:

  • Compressed natural gas is subject to the state fuel excise tax of $0.31 per gasoline gallon equivalent, measured at 5.66 pounds (lbs.) or 126.67 cubic feet at a base temperature of 60 degrees Fahrenheit and a pressure of 14.73 lbs. per square inch;
  • Liquefied natural gas is subject to the excise tax of $0.325 per diesel gallon equivalent (DGE), measured at 6.06 lbs.;
  • Propane is subject to the excise tax of $0.30 per gallon;
  • E85 is subject to the excise tax of $0.290 per gallon;
  • B20 is subject to the excises tax of $0.295 per gallon;
  • B100 is subject to the excise tax of $0.325 per gallon;
  • Hydrogen is subject to the excise tax of $0.65 per DGE, measured at 2.49 lbs.; and
  • Electricity will be subject to the excise tax of $0.026 per kilowatt-hour of fuel delivered or placed into a battery or other energy storage device of an electric motor vehicle at any location in Iowa other than a residence.

(Reference Iowa Code 452A.2, 452A.3, 452A.41, and 452A.86)

Jurisdiction: Iowa

Type: Laws and Regulations

Enacted: Mar 26, 2014

Amended: May 16, 2019

Technologies: Ethanol, EVs, Hydrogen Fuel Cells, Natural Gas, PHEVs, Propane (LPG)

See all Iowa Laws and Incentives.