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

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Instruction 2220 Instructions for Form 2220, Underpayment of Estimated Tax by Corporations 2023
Instruction 2220 Instructions for Form 2220, Underpayment of Estimated Tax by Corporations 2022
Instruction 2220 Instructions for Form 2220, Underpayment of Estimated Tax by Corporations 2021
Instruction 2220 Instructions for Form 2220, Underpayment of Estimated Tax by Corporations 2020
Instruction 2220 Instructions for Form 2220, Underpayment of Estimated Tax by Corporations 2019
Instruction 2220 Instructions for Form 2220, Underpayment of Estimated Tax by Corporations 2018
Instruction 2220 Instructions for Form 2220, Underpayment of Estimated Tax by Corporations 2017
Instruction 2220 Instructions for Form 2220, Underpayment of Estimated Tax by Corporations 2016
Instruction 2220 Instructions for Form 2220, Underpayment of Estimated Tax by Corporations 2015
Instruction 2220 Instructions for Form 2220, Underpayment of Estimated Tax by Corporations 2014
Instruction 2220 Instructions for Form 2220, Underpayment of Estimated Tax by Corporations 2013
Instruction 2220 Instructions for Form 2220, Underpayment of Estimated Tax by Corporations 2012
Instruction 2220 Instructions for Form 2220, Underpayment of Estimated Tax by Corporations 2011
Instruction 2220 Instructions for Form 2220, Underpayment of Estimated Tax by Corporations 2010
Instruction 2220 Instructions for Form 2220, Underpayment of Estimated Tax by Corporations 2009
Instruction 2220 Instructions for Form 2220, Underpayment of Estimated Tax by Corporations 2008
Form 2220 (Schedule W) Worksheet for the 2002 Form 2220 2002
Form 2240 Claim for Refund of Federal Tax on Gasoline used on a Farm 1963
Form 2240 Claim for Refund of Federal Tax on Gasoline used on a Farm 1962
Form 2240 Claim for Refund of Federal Tax on Gasoline used on a Farm 1961
Form 2290 Heavy Highway Vehicle Use Tax Return 2024
Form 2290 Heavy Highway Vehicle Use Tax Return 2023
Form 2290 Heavy Highway Vehicle Use Tax Return 2022
Form 2290 Heavy Highway Vehicle Use Tax Return 2021
Form 2290 Heavy Highway Vehicle Use Tax Return 2020