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 None at this time. 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)