Gasoline Usage and pricing United States
Because of primitive gasoline pumps in the 1920s, United States gasoline prices are posted with taxes included and the taxes are set on cents per gallon. Taxes are added by federal, state and local governments. The federal government and many states fail to increase their gasoline taxes over time with inflation. Retrieved on November 25, 2011. also charge a sales tax as a percentage and vary in amount depending on the cost of the gasoline.