The United States Revenue Act of 1964 (Pub. L. 88–272), also known as the Tax Reduction Act, was a tax cut act proposed by President John F. Kennedy, passed by the 88th United States Congress, and signed into law by President Lyndon B. Johnson. The act became law on February 26, 1964.
Kennedy proposed the bill on the advice of Keynesian economist Walter Heller, who believed that temporary deficit spending would boost economic growth. The act was initially blocked by Democrats like Senator Harry F. Byrd, but Lyndon Johnson was able to guide it through Congress after the assassination of Kennedy in November 1963. The act cut federal income taxes by approximately twenty percent across the board, and the top federal income tax rate fell from 91 percent to 70 percent. The act also reduced the corporate tax from 52 percent to 48 percent and created a minimum standard deduction.