Internal Revenue Code

The Internal Revenue Code of 1986 is the domestic portion of federal statutory tax law in the United States, codified in Title 26 of the United States Code. It was enacted in 1954 by the 83rd United States Congress, replacing the 1939 Code and featuring a progressive tax system with 24 income brackets ranging from 20% to 91%. The Tax Reform Act of 1986 renamed the 1954 Code to the Internal Revenue Code of 1986, and it is published in the United States Statutes at Large and as a separate code, with the text of the two versions being virtually identical.learn more on wikipedia