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The top marginal tax rate was reduced to 58% in 1922, to 25% in 1925, and finally to 24% in 1929. In 1932 the top marginal tax rate was increased to 63% during the Great Depression and steadily increased, reaching 94% (on all income over $200,000) in 1945. During World War II, Congress introduced payroll withholding and quarterly tax payments. Top marginal tax rates stayed near or above 90% until 1964 when the top marginal tax rate was lowered to 70%. The top marginal tax rate was lowered to 50% in 1982 and eventually to 28% in 1988. However, in the intervening years Congress subsequently increased the top marginal tax rate to 35% (the top marginal tax rate as of 2007).

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16y ago
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6mo ago

The highest marginal tax rate in US history was 94% and it was in effect during World War II. This tax rate applied to income over $200,000 for individuals.

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Q: What was the highest tax rate in US history?
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