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 8820 Orphan Drug Credit 2018 Form 8820 Orphan Drug Credit 2017 Form 8820 Orphan Drug Credit 2012 Form 8820 Orphan Drug Credit 2011 Form 8820 Orphan Drug Credit 2010 Form 8820 Orphan Drug Credit 2008 Form 8820 Orphan Drug Credit 2006 Form 8820 Orphan Drug Credit 2005 Form 8820 Orphan Drug Credit 2004 Form 8820 Orphan Drug Credit 2003 Form 8820 Orphan Drug Credit 2002 Form 8820 Orphan Drug Credit 2001 Form 8820 Orphan Drug Credit 2000 Form 8820 Orphan Drug Credit 1999 Form 8820 Orphan Drug Credit 1998 Form 8820 Orphan Drug Credit 1997 Form 8820 Orphan Drug Credit 1996
