Search Federal and State Laws and Incentives

Natural Gas and Propane Fuel Tax

Any individual using or selling compressed natural gas (CNG), liquefied natural gas (LNG), or liquefied petroleum gas (propane) as a motor fuel must report fuel use and remit taxes due to the Kansas Department of Revenue on a monthly basis. The minimum tax imposed on CNG is $0.24 per gasoline gallon equivalent (GGE), LNG is $0.26 per GGE, and propane is $0.23 per gallon. The state imposes a tax rate of $0.24 per gallon on conventional motor fuel.

Alternatively, CNG, LNG, and propane vehicle users may apply for special permit decals to pay motor fuel taxes on a mileage basis. The number of gallons used on Kansas highways is determined based on the following miles per gallon (mpg) estimates:

(Reference Kansas Statutes79-3490, 79-3491a through 79-3492e, and 79-34,141)

E85 Tax Rate and Definition

The minimum motor vehicle fuel tax rate on E85 is $0.17 per gallon, compared to the conventional motor fuel tax rate of $0.24 per gallon. E85 is defined as an alternative fuel that is a blend of denatured ethanol and hydrocarbon and typically contains 85% ethanol by volume, but must contain at least 70% ethanol by volume and complies with ASTM specification D5798-99. (Reference Kansas Statutes 79-3401; 79-3490; and 79-34,141)