In addition to the federal gasoline tax, currently 18.4 cents per gallon, states add their own taxes and fees every time you fill up. Some states assess higher – much higher – gas taxes than others. Savvy consumers who pay attention to state borders can save hundreds of dollars each year by filling up on one side of the state line or the other. (Driving I-40 across the Southwest? Be sure to fill up in Arizona before you hit California.) In our map below, discover which states hit drivers’ pocketbooks the most (and the least). Scroll over any state to see its gas tax and how it contributes to the overall tax rate on a gallon of gas. Pennsylvania has the highest state gas tax at 58.7 cents per gallon; Alaska the lowest at 12.3 cents per gallon. The national average, as calculated by the American Petroleum Institutes, is 33.6 cents per gallon.
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