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 - 19 of 19Find 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-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 1120-S 2019 Form 8879-S IRS e-file Signature Authorization for Form 1120S 2018 Form 8879-S IRS e-file Signature Authorization for Form 1120S 2017 Form 8879-S IRS e-file Signature Authorization for Form 1120S 2016 Form 8879-S IRS e-file Signature Authorization for Form 1120S 2015 Form 8879-S IRS e-file Signature Authorization for Form 1120S 2014 Form 8879-S IRS e-file Signature Authorization for Form 1120S 2013 Form 8879-S IRS e-file Signature Authorization for Form 1120S 2012 Form 8879-S IRS e-file Signature Authorization for Form 1120S 2011 Form 8879-S IRS e-file Signature Authorization for Form 1120S 2010 Form 8879-S IRS e-file Signature Authorization for Form 1120S 2009 Form 8879-S IRS e-file Signature Authorization for Form 1120S 2008 Form 8879-S IRS e-file Signature Authorization for Form 1120S 2007 Form 8879-S IRS e-file Signature Authorization for Form 1120S 2006 Form 8879-S IRS e-file Signature Authorization for Form 1120S 2005 Form 8879-S IRS e-file Signature Authorization for Form 1120S 2004 Form 8879-S IRS e-file Signature Authorization for Form 1120S 2003
