A fiduciary and an electronic return originator (ERO) use this form when the fiduciary wants to use a personal identification number (PIN) to electronically sign an estate’s or trust’s electronic income tax return and, if applicable, consent to electronic funds withdrawal. Current revision Form 8879-F PDF Recent developments None at this time. Other items you may find useful All Form 8879-F revisions About Form 1041, U.S. Income Tax Return for Estates and Trusts About Form 8453-FE, U.S. Estate or Trust Declaration for an IRS e-file Return Other current products