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

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Instruction 1120-S Instructions for Form 1120-S, U.S. Income Tax Return for an S Corporation 2019
Instruction 1120-S Instructions for Form 1120-S, U.S. Income Tax Return for an S Corporation 2018
Instruction 1120-S Instructions for Form 1120-S, U.S. Income Tax Return for an S Corporation 2017
Instruction 1120-S Instructions for Form 1120-S, U.S. Income Tax Return for an S Corporation 2016
Instruction 1120-S Instructions for Form 1120-S, U.S. Income Tax Return for an S Corporation 2015
Instruction 1120-S Instructions for Form 1120-S, U.S. Income Tax Return for an S Corporation 2014
Instruction 1120-S Instructions for Form 1120-S, U.S. Income Tax Return for an S Corporation 2013
Instruction 1120-S Instructions for Form 1120-S, U.S. Income Tax Return for an S Corporation 2012
Instruction 1120-S Instructions for Form 1120-S, U.S. Income Tax Return for an S Corporation 2011
Instruction 1120-S Instructions for Form 1120-S, U.S. Income Tax Return for an S Corporation 2010
Instruction 1120-S Instructions for Form 1120-S, U.S. Income Tax Return for an S Corporation 2009
Instruction 1120-S Instructions for Form 1120-S, U.S. Income Tax Return for an S Corporation 2008
Form 1120 (Schedule B) Additional Information for Schedule M-3 Filers 2018
Form 1120 (Schedule B) Additional Information for Schedule M-3 Filers 2014
Form 1120 (Schedule B) Additional Information for Schedule M-3 Filers 2009
Form 1120 (Schedule B) Additional Information for Schedule M-3 Filers 2008
Form 1120 (Schedule C) United States Schedule of Capital Gains and Losses 1950
Form 1120 (Schedule C) United States Schedule of Capital Gains and Losses 1949
Form 1120 (Schedule C) United States Schedule of Capital Gains and Losses 1948
Form 1120 (Schedule C) United States Schedule of Capital Gains and Losses 1947
Form 1120 (Schedule C) United States Schedule of Capital Gains and Losses 1946
Form 1120 (Schedule C) United States Schedule of Capital Gains and Losses 1945
Form 1120 (Schedule C) United States Schedule of Capital Gains and Losses 1944
Form 1120 (Schedule C) United States Schedule of Capital Gains and Losses 1943
Form 1120 (Schedule C) United States Schedule of Capital Gains and Losses 1942

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