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

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Form 2120 Multiple Support Declaration 2018
Form 2120 Multiple Support Declaration 2005
Form 2120 Multiple Support Declaration 2002
Form 2120 Multiple Support Declaration 2000
Form 2120 Multiple Support Declaration 1997
Form 2120 Multiple Support Declaration 1996
Form 2120 Multiple Support Declaration 1994
Form 2120 Multiple Support Declaration 1991
Form 2120 Multiple Support Declaration 1989
Form 2120 Multiple Support Declaration 1988
Form 2120 Multiple Support Declaration 1986
Form 2120 Multiple Support Declaration 1984
Form 2120 Multiple Support Declaration 1981
Form 2120 Multiple Support Declaration 1980
Form 2120 Multiple Support Declaration 1976
Form 2120 Multiple Support Declaration 1974
Form 2120 Multiple Support Declaration 1970
Form 2210 Underpayment of Estimated Tax by Individuals, Estates and Trusts 2023
Form 2210 Underpayment of Estimated Tax by Individuals, Estates and Trusts 2022
Form 2210 Underpayment of Estimated Tax by Individuals, Estates and Trusts 2021
Form 2210 Underpayment of Estimated Tax by Individuals, Estates and Trusts 2020
Form 2210 Underpayment of Estimated Tax by Individuals, Estates and Trusts 2019
Form 2210 Underpayment of Estimated Tax by Individuals, Estates and Trusts 2018
Form 2210 Underpayment of Estimated Tax by Individuals, Estates and Trusts 2017
Form 2210 Underpayment of Estimated Tax by Individuals, Estates and Trusts 2016

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