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 1 - 25 of 161Find 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 8879 IRS e-file Signature Authorization 2021 Form 8879 IRS e-file Signature Authorization 2019 Form 8879 IRS e-file Signature Authorization 2018 Form 8879 IRS e-file Signature Authorization 2017 Form 8879 IRS e-file Signature Authorization 2016 Form 8879 IRS e-file Signature Authorization 2015 Form 8879 IRS e-file Signature Authorization 2014 Form 8879 IRS e-file Signature Authorization 2013 Form 8879 IRS e-file Signature Authorization 2012 Form 8879 IRS e-file Signature Authorization 2011 Form 8879 IRS e-file Signature Authorization 2010 Form 8879 IRS e-file Signature Authorization 2009 Form 8879 IRS e-file Signature Authorization 2008 Form 8879 IRS e-file Signature Authorization 2007 Form 8879 IRS e-file Signature Authorization 2006 Form 8879 IRS e-file Signature Authorization 2005 Form 8879 IRS e-file Signature Authorization 2004 Form 8879 IRS e-file Signature Authorization 2003 Form 8879 IRS e-file Signature Authorization 2002 Form 8879 IRS e-file Signature Authorization 2001 Form 8879-B IRS e-file Signature Authorization for Form 1065-B 2017 Form 8879-B IRS e-file Signature Authorization for Form 1065-B 2016 Form 8879-B IRS e-file Signature Authorization for Form 1065-B 2015 Form 8879-B IRS e-file Signature Authorization for Form 1065-B 2014 Form 8879-B IRS e-file Signature Authorization for Form 1065-B 2013 Pagination Current page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Next page Next Last page Last »