Find IRS forms, instructions, publications, and notices for prior years back to 1864. If a PDF file won't open, try downloading the file to your device and opening it using Adobe Acrobat. View more information about Using IRS Forms, Instructions, Publications and Other Item Files. Click on a column heading to sort the list by the contents of that column. Enter a term in the Find box Click the Search button Showing 1 - 17 of 17Find Help Find Prior Year » RegExReplace » Product Number Prior Year » Revision Date Prior Year » Title Show per page 2550100200 SearchClear Product Number Title Revision Date 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
