SOURCE: Federation of Tax Administrators, Federal Highway Administration, state websites.
/1 Tax rates do not include local option taxes. In AL, 1 – 3 cents; HI, 8.8 to 18.0 cent; IL, 5 cents in Chicago and 6 cents in Cook county (gasoline only); NV, 4.0 to 9.0 cents; OR, 1 to 3 cents; SD and TN, one cent; and VA 2%.
/2 Local taxes for gasoline and gasohol vary from 12.6 cents to 18.6 cents. Plus a 2.2 cent per gallon pollution tax.
/3 Carriers pay an additional surcharge equal to AZ-8 cents, IL-12.3 cents (g) 13.5 cents (d), IN-11 cents, KY-2% (g) 4.7% (d).
/4 Tax rate is based on the average wholesale price and is adjusted quarterly. The actual rates are: KY, 9%; and NC, 17.5¢ + 7%.
/5 Portion of the rate is adjustable based on maintenance costs, sales volume, cost of fuel to state government, or inflation.
/6 Large trucks pay an additional 3.5 cents.
/7 Tax rate is reduced by the percentage of ethanol used in blending (reported rate assumes the max. 10% ethanol).
/8 California gasoline subject to 2.25% sales tax.
/9 Clean-up fee of 2 cents is only effective for four months out of every year.
/10 Delivery and Distribution charges total 4.5 cents per gallon. The 0.875 cents MUSTFA fee is a Michigan-specific environmental regulation fee for the refined petroleum fund.
/11 On Feb. 23, 2013 the Virginia Legislature approved an overhaul of the transportation funding system which replaces the gas tax with a 3.5% wholesale motor fuel tax, a 0.3% increase in the nonfood sales tax, and registration fee increase for hybrid, electric and alternative-fuel vehicles.
/12 Maryland’s gas tax increased on July 1, 2013 to 27.3 cents per gallon, up from 23.5. It is now indexed to adjust for inflation.
/13 Each new fiscal year the California Board of Equalization may adjust the rate of the motor vehicle fuel excise tax.

Sales tax prepayment rates are not included above.