Form 8879 is the declaration document and signature authorization for an e-filed return filed by an electronic return originator (ERO). Complete this form when: The Practitioner PIN method is used. The taxpayer authorizes the ERO to enter or generate the taxpayer’s personal identification number (PIN) on his or her e-filed individual income tax return. Current Revision Form 8879 PDF Recent Developments ITINs Acceptable on Form 8879 -- 12-MAR-2021 Clarification regarding Form 8879 (Rev. January 2021) -- 25-FEB-2021 IRS approves temporary use of e-signatures for certain forms -- 28-AUG-2020 Other Items You May Find Useful All Form 8879 Revisions About Form 1040 (PR), Self-Employment Tax Return - Puerto Rico Publication 1345, Handbook for Authorized IRS e-file Providers of Individual Tax Returns PDF Publication 4164, Modernized e-FIle (MeF) Guide for Software Developers and Transmitters PDF Other Current Products Related forms About Form 1040, U.S. Individual Income Tax Return About Form 1040-SS, U.S. Self-Employment Tax Return (Including the Additional Child Tax Credit for Bona Fide Residents of Puerto Rico)