Find IRS forms, instructions, publications, and notices for prior years back to 1864.

If a PDF file won't open, try downloading the file to your device and opening it using Adobe Acrobat. View more information about Using IRS Forms, Instructions, Publications and Other Item Files.

Click on a column heading to sort the list by the contents of that column.

  1. Enter a term in the Find box
  2. Click the Search button
Find Help
Product Number Title Revision Date
Form 1120 U.S. Corporation Income Tax Return 1966
Form 1120 U.S. Corporation Income Tax Return 1965
Form 1120 U.S. Corporation Income Tax Return 1964
Form 1120 U.S. Corporation Income Tax Return 1963
Form 1120 U.S. Corporation Income Tax Return 1962
Form 1120 U.S. Corporation Income Tax Return 1961
Form 1120 U.S. Corporation Income Tax Return 1960
Form 1120 U.S. Corporation Income Tax Return 1959
Form 1120 U.S. Corporation Income Tax Return 1958
Form 1120 U.S. Corporation Income Tax Return 1957
Form 1120 U.S. Corporation Income Tax Return 1956
Form 1120 U.S. Corporation Income Tax Return 1955
Form 1120 U.S. Corporation Income Tax Return 1954
Form 1120 U.S. Corporation Income Tax Return 1953
Form 1120 U.S. Corporation Income Tax Return 1952
Form 1120 U.S. Corporation Income Tax Return 1951
Form 1120 U.S. Corporation Income Tax Return 1950
Form 1120 U.S. Corporation Income Tax Return 1949
Form 1120 U.S. Corporation Income Tax Return 1948
Form 1120 U.S. Corporation Income Tax Return 1947
Form 1120 U.S. Corporation Income Tax Return 1946
Form 1120 U.S. Corporation Income Tax Return 1945
Form 1120 U.S. Corporation Income Tax Return 1944
Form 1120 U.S. Corporation Income Tax Return 1943
Form 1120 U.S. Corporation Income Tax Return 1942
Get Adobe Acrobat Reader