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

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Instruction 6198 Instructions 1995
Instruction 6198 Instructions 1994
Instruction 6198 Instructions 1993
Instruction 6198 Instructions 1992
Instruction 6198 Instructions 1991
Instruction 6198 Instructions 1990
Form 6251 Alternative Minimum Tax - Individuals 2024
Form 6251 Alternative Minimum Tax - Individuals 2023
Form 6251 Alternative Minimum Tax - Individuals 2022
Form 6251 Alternative Minimum Tax - Individuals 2021
Form 6251 Alternative Minimum Tax - Individuals 2020
Form 6251 Alternative Minimum Tax - Individuals 2019
Form 6251 Alternative Minimum Tax - Individuals 2018
Form 6251 Alternative Minimum Tax - Individuals 2017
Form 6251 Alternative Minimum Tax - Individuals 2016
Form 6251 Alternative Minimum Tax - Individuals 2015
Form 6251 Alternative Minimum Tax - Individuals 2014
Form 6251 Alternative Minimum Tax - Individuals 2013
Form 6251 Alternative Minimum Tax - Individuals 2012
Form 6251 Alternative Minimum Tax - Individuals 2011
Form 6251 Alternative Minimum Tax - Individuals 2010
Form 6251 Alternative Minimum Tax - Individuals 2009
Form 6251 Alternative Minimum Tax - Individuals 2008
Form 6251 Alternative Minimum Tax - Individuals 2007
Form 6251 Alternative Minimum Tax - Individuals 2006