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 20151 - 20175 of 22674Find Help Find Prior Year » RegExReplace » Product Number Prior Year » Revision Date Prior Year » Title Show per page 2550100200 Search Product Number Title Revision Date Form 8878 IRS e-file Signature Authorization for Form 4868 or Form 2350 2016 Form 8878 IRS e-file Signature Authorization for Form 4868 or Form 2350 2015 Form 8878 IRS e-file Signature Authorization for Form 4868 or Form 2350 2014 Form 8878 IRS e-file Signature Authorization for Form 4868 or Form 2350 2013 Form 8878 IRS e-file Signature Authorization for Form 4868 or Form 2350 2012 Form 8878 IRS e-file Signature Authorization for Form 4868 or Form 2350 2011 Form 8878 IRS e-file Signature Authorization for Form 4868 or Form 2350 2010 Form 8878 IRS e-file Signature Authorization for Form 4868 or Form 2350 2009 Form 8878 IRS e-file Signature Authorization for Form 4868 or Form 2350 2008 Form 8878 IRS e-file Signature Authorization for Form 4868 or Form 2350 2007 Form 8878 IRS e-file Signature Authorization for Form 4868 or Form 2350 2006 Form 8878 IRS e-file Signature Authorization for Form 4868 or Form 2350 2005 Form 8878 IRS e-file Signature Authorization-Application for Extension of Time to File 2004 Form 8878 IRS e-file Signature Authorization-Application for Extension of Time to File 2003 Form 8878 IRS e-file Signature Authorization-Application for Extension of Time to File 2002 Form 8878 IRS e-file Signature Authorization-Application for Extension of Time to File 2001 Form 8878-A IRS e-file Electronic Funds Withdrawal Authorization for Form 7004 2008 Form 8878-A IRS e-file Electronic Funds Withdrawal Authorization for Form 7004 2005 Form 8878-A IRS e-file Electronic Funds Withdrawal Authorization for Form 7004 2004 Form 8878 (sp) IRS e-file Signature Authorization for Form 4868 (sp) or Form 2350 (sp) (Spanish Version) 2023 Form 8878 (sp) IRS e-file Signature Authorization for Form 4868 (SP) or Form 2350 (SP) (Spanish Version) 2022 Form 8878 (sp) IRS e-file Signature Authorization for Form 4868 (SP) or Form 2350 (SP) (Spanish Version) 2021 Form 8878 (SP) IRS e-file Signature Authorization for Form 4868 (SP) or Form 2350 (SP) (Spanish Version) 2020 Form 8878 (SP) IRS e-file Signature Authorization for Form 4868 (SP) or Form 2350 (SP) (Spanish Version) 2019 Form 8878 (SP) IRS e-file Signature Authorization for Application for Extension of Time to File Form 4868 (SP) or Form 2350 (SP) (Spanish version) 2018 Pagination First page « First Previous page Previous … Page 803 Page 804 Page 805 Page 806 Current page 807 Page 808 Page 809 Page 810 Page 811 … Next page Next Last page Last »