https://en.wikipedia.org/wiki/Income_tax_in_the_United_States#History_of_top_rates https://en.wikipedia.org/wiki/Income_tax_in_the_United_State... > During Wor

https://en.wikipedia.org/wiki/Income_tax_in_the_United_States#History_of_top_rates https://en.wikipedia.org/wiki/Income_tax_in_the_United_State... > During World War I, the top rate rose to 77% and the income threshold to be in this top bracket increased to $1,000,000 (equivalent to $19.6 million[68] in 2018 dollars). > During 1944 and 1945, the top rate was its all-time high at 94% applied to income above $200,000 (equivalent to $2.85 million[68] in 2018 dollars). Nominal Tax Rates and Brackets, 1913-2013: https://files.taxfoundation.org/legacy/docs/fed_individual_rate_history_nominal.pdf https://files.taxfoundation.org/legacy/docs/fed_individual_r... Inflation-adjusted Tax Rates and Brackets, 1913-2013 (in 2012 Dollars): https://files.taxfoundation.org/legacy/docs/fed_individual_rate_history_adjusted.pdf https://files.taxfoundation.org/legacy/docs/fed_individual_r...