Complete Form 8878 when: Form 4868 is filed using the Practitioner PIN method. The taxpayer authorizes the electronic return originator (ERO) to enter or generate the taxpayer’s personal identification number (PIN) on Form 4868 or Form 2350. Current revision Form 8878 PDF Recent developments None at this time. Other items you may find useful All Form 8878 revisions Publication 1345, Handbook for Authorized IRS e-file Providers of Individual Income Tax Returns PDF Other current products Related items About Form 2350, Application for Extension of Time to File U.S. Income Tax Return About Form 4868, Application for Automatic Extension of Time to File U.S. Individual Income Tax Return
