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 15801 - 15825 of 18268Find 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 8878 (SP) IRS e-file Signature Authorization-Application for Extension of Time to File (Spanish version) 2004 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 Pagination First page « First Previous page Previous … Page 629 Page 630 Page 631 Page 632 Current page 633 Page 634 Page 635 Page 636 Page 637 … Next page Next Last page Last »