Gasoline Taxes: Combined local, state and federal (cents per gallon). Rates effective 07/01/2019
The federal gasoline tax is 18.4 cents per gallon, and state gasoline fees and taxes range from a low of about 14 cents per gallon in Alaska to as much as 61 cents per gallon in California and 59 cents per gallon in Pennsylvania. On average, taxes and fees currently make up approximately 17 percent of what consumer are paying at the pump.
The remaining 30 percent of the price is the cost to refine, transport and sell gasoline.