Madison Mauro is a 2019 intern with our Center for Federal Tax Policy.
The Tax Cuts and Jobs Act (TCJA) reduced the U.S. federal corporate income tax rate from 35 percent to 21 percent. However, most U.S. states also tax corporate income. These state-level taxes mean the average statutory corporate income tax rate in the U.S., which combines the average of state corporate income tax rates with the federal corporate income tax rate, is 25.8 percent in 2019.
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Less than one percent of businesses employ almost half of the private sector workforce. Large companies pay 89% of corporate income taxes in the United States.
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From 1986 to 2016, the top 1 percent’s share of income taxes rose from 25.8 percent to 37.3 percent, while the bottom 90 percent’s share fell from 45.3 percent to 30.5 percent.
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In the 1950s, when the top marginal income tax rate reached 92 percent, the top 1 percent of taxpayers paid an effective rate of only 16.9 percent. As top marginal rates have fallen, the tax burden on the rich has risen.
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The federal income tax and federal payroll tax make up a growing share of federal revenue. Individual income taxes have become a central pillar of the federal revenue system, now comprising nearly half of all revenue.
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