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

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Instruction 1120 and 1120-A Instructions for Forms 1120 and 1120-A 1999
Instruction 1120 and 1120-A Instructions for Forms 1120 and 1120-A 1998
Instruction 1120 and 1120-A Instructions for Forms 1120 and 1120-A 1997
Instruction 1120 and 1120-A Instructions for Forms 1120 and 1120-A 1996
Instruction 1120 and 1120-A Instructions for Forms 1120 and 1120-A 1995
Instruction 1120 and 1120-A Instructions for Forms 1120 and 1120-A 1994
Instruction 1120 and 1120-A Instructions for Forms 1120 and 1120-A 1993
Instruction 1120 and 1120-A Instructions for Forms 1120 and 1120-A 1992
Instruction 1120 and 1120-A Instructions for Forms 1120 and 1120-A 1991
Instruction 1120 and 1120-A Instructions for Forms 1120 and 1120-A 1990
Form 1120-C U.S. Income Tax Return for Cooperative Associations 2024
Form 1120-C U.S. Income Tax Return for Cooperative Associations 2023
Form 1120-C U.S. Income Tax Return for Cooperative Associations 2022
Form 1120-C U.S. Income Tax Return for Cooperative Associations 2021
Form 1120-C U.S. Income Tax Return for Cooperative Associations 2020
Form 1120-C U.S. Income Tax Return for Cooperative Associations 2019
Form 1120-C U.S. Income Tax Return for Cooperative Associations 2018
Form 1120-C U.S. Income Tax Return for Cooperative Associations 2017
Form 1120-C U.S. Income Tax Return for Cooperative Associations 2016
Form 1120-C U.S. Income Tax Return for Cooperative Associations 2015
Form 1120-C U.S. Income Tax Return for Cooperative Associations 2014
Form 1120-C U.S. Income Tax Return for Cooperative Associations 2013
Form 1120-C U.S. Income Tax Return for Cooperative Associations 2012
Form 1120-C U.S. Income Tax Return for Cooperative Associations 2011
Form 1120-C U.S. Income Tax Return for Cooperative Associations 2010

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