Maryland

The gasoline tax is the single largest source of funding for transportation infrastructure in the United States, but the tax is on an unsustainable course. Sluggish gas tax revenue growth has put strain on transportation budgets at the federal and state levels, and has led to countless debates around the country about how best to pay for America's infrastructure.

An updated version of this brief was published on February 9, 2017.   Read this report in pdf. Every state levies taxes on gasoline and diesel fuel, usually just called “gas taxes.” These taxes are an important source of state revenue—particularly for transportation—but their poor design has resulted in sluggish revenue growth that fails to […]

The federal government and many states are seeing shortfalls in their transportation budgets in part because the gasoline taxes they use to generate those funds are poorly designed. Thirty-two states and the federal government levy "fixed-rate" gas taxes where the tax rate does not change even as the cost of infrastructure materials inevitably increases over time. The federal government's 18.4 cent gas tax, for example, has not increased in over twenty years. And almost half the states (24) have gone a decade or more without a gas tax increase.

DC's tax system is markedly regressive. This is driven largely by the regressive impact of the city's sales, excise, and property taxes. The personal income tax is the only effective tool that DC has available for offsetting this regressivity. In the comments below I discuss four options for fine-tuning DC's income tax to lessen its impact on moderate- and middle-income taxpayers. I also describe four options for funding those tax cuts with policies that would increase upper-income taxpayers' effective tax rates to be more in line with those paid by their less affluent neighbors.

Gas tax revenues are on an unsustainable course. Over the last five years, Congress has transferred more than $53 billion from the general fund to the transportation fund in order to compensate for lagging gas tax revenues. By 2015, the transportation fund will be insolvent unless an additional $15 billion transfer is made. Larger transfers will be needed in subsequent years.

New Census Bureau data released this month show that the share of Americans living in poverty remains high, despite other signs of economic recovery. The national 2012 poverty rate of 15 percent is essentially unchanged since 2010 , but still 2.5 percentage points higher than pre-recession levels. This means that in 2012, 46.5 million, or about 1 in 6 Americans, lived in poverty.1 The poverty rate in most states also held steady with five states experiencing an increase in either the number or share of residents living in poverty while only two states saw a decline.2