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 126 - 150 of 165Find 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-C IRS e-file Signature Authorization for Form 1120 2005 Form 8879-I IRS e-file Signature Authorization for Form 1120-F 2007 Form 8879-I IRS e-file Signature Authorization for Form 1120-F 2008 Form 8879-I IRS e-file Signature Authorization for Form 1120-F 2009 Form 8879-I IRS e-file Signature Authorization for Form 1120-F 2013 Form 8879-I IRS e-file Signature Authorization for Form 1120-F 2010 Form 8879-I IRS e-file Signature Authorization for Form 1120-F 2014 Form 8879-I IRS e-file Signature Authorization for Form 1120-F 2017 Form 8879-I IRS e-file Signature Authorization for Form 1120-F 2018 Form 8879-I IRS e-file Signature Authorization for Form 1120-F 2012 Form 8879-I IRS e-file Signature Authorization for Form 1120-F 2019 Form 8879-I IRS e-file Signature Authorization for Form 1120-F 2015 Form 8879-I IRS e-file Signature Authorization for Form 1120-F 2021 Form 8879-I IRS e-file Signature Authorization for Form 1120-F 2020 Form 8879-I IRS e-file Signature Authorization for Form 1120-F 2011 Form 8879-I IRS e-file Signature Authorization for Form 1120-F 2016 Form 8879-S IRS e-file Signature Authorization for Form 1120-S 2019 Form 8879-S IRS e-file Signature Authorization for Form 1120-S 2021 Form 8879-S IRS e-file Signature Authorization for Form 1120-S 2020 Form 8879-S IRS e-file Signature Authorization for Form 1120S 2009 Form 8879-S IRS e-file Signature Authorization for Form 1120S 2012 Form 8879-S IRS e-file Signature Authorization for Form 1120S 2003 Form 8879-S IRS e-file Signature Authorization for Form 1120S 2005 Form 8879-S IRS e-file Signature Authorization for Form 1120S 2014 Form 8879-S IRS e-file Signature Authorization for Form 1120S 2004 Pagination First page « First Previous page Previous Page 1 Page 2 Page 3 Page 4 Page 5 Current page 6 Page 7 Next page Next Last page Last »