State-levied taxA tax is a mandatory payment or charge collected by local, state, and national governments from individuals or businesses to cover the costs of general government services, goods, and activities. es make up the vast majority of each state’s general fund budget, and thus are the most obvious source of state revenue. But state governments also receive a notable amount of assistance from the federal government. In fiscal year (FY) 2017, 22.9 percent of state revenues came from federal grants-in-aid.
Federal aid is allocated to states for a variety of purposes, primarily to supplement state funding for programs or projects deemed to be of national interest, such as Medicaid payments, education funding assistance, infrastructure assistance, and more. Some federal aid is awarded in the form of competitive grants, while other federal funding is given according to formulas established by law. Formula grants usually incorporate factors like population size, poverty statistics, and state matching dollars for distributing federal aid among states. Competitive grants are awarded on a discretionary basis and are more likely to fluctuate from year to year.
The map below shows the extent to which federal aid comprised each state’s total general revenue in FY 2017 (the most recent year of data available). That year, the states where federal aid made up the largest share of general revenue were Montana (46.1 percent), Wyoming (44.5 percent), Louisiana (43.7 percent), Mississippi (43.3 percent), and Arizona (43.1 percent). The states for which federal aid made up the smallest share of state general revenue were Hawaii (20.7 percent), Virginia (21.1 percent), Kansas (23.3 percent), Utah (24.2 percent), and Minnesota (26.0 percent).
States that rely heavily on federal grants-in-aid tend to have sizable low-income populations and relatively lower tax revenues. States with relatively lower reliance on federal aid tend to collect more in taxes and have smaller low-income populations, although some exceptions exist. Notably, although North Dakota and Alaska impose relatively modest taxes on residents, both are resource-rich states that export much of their tax burdens through severance taxes, yet their reliance on federal aid differs greatly.
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