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 1 - 8 of 8Find 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 2678 Employer/Payer Appointment of Agent 2023 Form 2678 Employer/Payer Appointment of Agent 2014 Form 2678 Employer/Payer Appointment of Agent 2012 Form 2678 Employer/Payer Appointment of Agent 2011 Form 2678 Employer/Payer Appointment of Agent 2007 Form 2678 Employer/Payer Appointment of Agent 2002 Form 2678 Employer/Payer Appointment of Agent 1997 Instruction 2678 Instructions for Form 2678 2023