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

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Instruction 1120-S (Sch K-2 & K-3) Instructions for Schedules K-2 and K-3 (Form 1120-S) 2023
Instruction 1120-S (Sch K-2 & K-3) Instructions for Schedule K-2 (Form 1120-S) and Schedule K-3 (Form 1120-S) 2022
Instruction 1120-S (Sch K-2 & K-3) Instructions for Schedule K-2 (Form 1120-S) and Schedule K-3 (Form 1120-S) 2021
Form 1120-W Estimated Tax for Corporations 2022
Form 1120-W Estimated Tax for Corporations 2021
Form 1120-W Estimated Tax for Corporations 2020
Form 1120-W Estimated Tax for Corporations 2019
Form 1120-W Estimated Tax for Corporations 2018
Form 1120-W Estimated Tax for Corporations 2017
Form 1120-W Estimated Tax for Corporations 2016
Form 1120-W Estimated Tax for Corporations 2015
Form 1120-W Estimated Tax for Corporations 2014
Form 1120-W Estimated Tax for Corporations 2013
Form 1120-W Estimated Tax for Corporations 2012
Form 1120-W Estimated Tax for Corporations 2011
Form 1120-W Estimated Tax for Corporations 2010
Form 1120-W Estimated Tax for Corporations 2009
Form 1120-W Estimated Tax for Corporations 2008
Form 1120-W Estimated Tax for Corporations 2007
Form 1120-W Estimated Tax for Corporations 2006
Form 1120-W Estimated Tax for Corporations 2005
Form 1120-W Estimated Tax for Corporations 2004
Form 1120-W Estimated Tax for Corporations 2003
Form 1120-W Estimated Tax for Corporations 2002
Form 1120-W Estimated Tax for Corporations 2001

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