Find IRS forms, instructions, publications, and notices for prior years back to 1864. 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 76 - 88 of 88Find Help Find Prior Year » RegExReplace » Product Number Prior Year » Revision Date Prior Year » Title Show per page 2550100200 SearchClear Product Number Title Revision Date Instruction 3468 Instructions for Form 3468, Investment Credit 2008 Instruction 3468 Instructions 2001 Instruction 3468 Instructions 2000 Instruction 3468 Instructions 1999 Instruction 3468 Instructions 1998 Instruction 3468 Instructions 1997 Instruction 3468 Instructions 1996 Instruction 3468 Instructions 1995 Instruction 3468 Instructions 1994 Instruction 3468 Instructions 1993 Instruction 3468 Instructions 1992 Instruction 3468 Instructions 1991 Instruction 3468 Instructions 1990 Pagination First page « First Previous page Previous Page 1 Page 2 Page 3 Current page 4