Alternative Fuel Vehicle (AFV) Tax and Fee

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Compressed natural gas (CNG) used in motor vehicles is subject to a state motor fuel tax of $0.13 per gasoline gallon equivalent (GGE). Liquefied natural gas (LNG) is also subject to a state motor fuel tax rate of $0.13 per diesel gallon equivalent (DGE).

In lieu of the motor fuel tax, some AFV owners are subject to a motor vehicle fee. An annual flat fee applies to passenger automobiles, pickup trucks, vans and heavy-duty vehicles using propane, natural gas, methanol, or blends of 85% methanol and 15% gasoline (M85). Propane and natural gas vehicles with a payload capacity of less than 2,000 pounds (lbs.) are taxed at a rate of $50 per vehicle per year. Methanol and M85 vehicles with a payload capacity of less than 2,000 lbs. are taxed at a rate of $100 per vehicle per year. Propane, methanol, and M85 vehicles with a payload capacity greater than 2,000 lbs. are taxed at a rate of $150 per vehicle per year. If the owner acquires the vehicle or converts it to run on the alternative fuel after July 1 of the tax year, the flat fee is half of the above mentioned amount. AFVs must display a decal that the Oklahoma Tax Commission issues on an annual basis.

(Reference Oklahoma Statutes 68-500.4 and 68-723)