A corporate officer and an electronic return originator (ERO) use this form when the corporate officer wants to: use a personal identification number (PIN) to electronically sign an S corporation’s electronic income tax return and, if applicable, consent to electronic funds withdrawal. Current Revision Form 8879-S PDF Recent Developments IRS approves temporary use of e-signatures for certain forms -- 28-AUG-2020 Other Items You May Find Useful All Form 8879-S Revisions Publication 4163, Modernized e-File (MeF) Information for Authorized IRS e-file Providers for Business Returns PDF Other Current Products Related About Form 1120-S, U.S. Income Tax Return for an S Corporation About Form 8453-S, U.S. S Corporation Income Tax Declaration for an IRS e-file Return