The Revenue Act of 1913, also known as the Underwood Tariff or the Underwood-Simmons Act (ch. 16, 38 Stat. 114), re-established a federal income tax in the United States and substantially lowered tariff rates. The act was sponsored by Representative Oscar Underwood, passed by the 63rd United States Congress, and signed into law by President[1] Woodrow Wilson.
First US Income Tax
