Final answer:
The major sources of government revenue at the federal level are individual income taxes and payroll taxes, whereas at the state and local levels, primary revenues come from sales taxes, property taxes, and federal transfers, in addition to personal and corporate income taxes, fees, and charges.
Step-by-step explanation:
The two main sources of government revenue for the federal government are individual income taxes and payroll taxes. As of 2020, 47 percent of federal revenue was derived from individual income taxes, while 38 percent came from payroll taxes, which include Social Security tax and Medicare tax. At the state and local levels, major revenue sources differ, comprising primarily of sales taxes, property taxes, and funds transferred from the federal government, along with personal and corporate income taxes, fees, and charges.
In addition to these primary sources, the federal government also collects revenue from excise taxes on goods like gasoline, tobacco, and alcohol, estate and gift taxes, tariffs on imported goods, and various inspection fees. While these constitute smaller portions of federal revenue, they are nonetheless relevant to its overall fiscal structure.