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 Mostrando 1 - 17 of 17Buscar ayuda Buscar Prior Year » RegExReplace » Product Number Prior Year » Revision Date Prior Year » Title Mostrar por página 2550100200 BuscarBorrar Número de producto Título Fecha de revisión Form 8879 (SP) IRS e-file Signature Authorization (Spanish version) 2021 Form 8879 (SP) IRS e-file Signature Authorization (Spanish version) 2019 Form 8879 (SP) IRS e-file Signature Authorization (Spanish version) 2018 Form 8879 (SP) IRS e-file Signature Authorization (Spanish version) 2017 Form 8879 (SP) IRS e-file Signature Authorization (Spanish version) 2016 Form 8879 (SP) IRS e-file Signature Authorization (Spanish version) 2015 Form 8879 (SP) IRS e-file Signature Authorization (Spanish version) 2014 Form 8879 (SP) IRS e-file Signature Authorization (Spanish version) 2013 Form 8879 (SP) IRS e-file Signature Authorization (Spanish version) 2012 Form 8879 (SP) IRS e-file Signature Authorization (Spanish version) 2011 Form 8879 (SP) IRS e-file Signature Authorization (Spanish version) 2010 Form 8879 (SP) IRS e-file Signature Authorization (Spanish version) 2009 Form 8879 (SP) IRS e-file Signature Authorization (Spanish version) 2008 Form 8879 (SP) IRS e-file Signature Authorization (Spanish version) 2007 Form 8879 (SP) IRS e-file Signature Authorization (Spanish version) 2006 Form 8879 (SP) IRS e-file Signature Authorization (Spanish version) 2005 Form 8879 (SP) IRS e-file Signature Authorization (Spanish version) 2004