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Publication 1345 Handbook for Authorized IRS e-file Providers of Individual Income Tax ReturnsPDF version of this PublicationTopic Screen for this Publication
Publication 1437 Procedures for the 1041 e-file Program U.S. Income Tax Returns for Estates and TrustsPDF version of this PublicationTopic Screen for this Publication
Publication 1438 File Specifications, Validation Criteria & Record Layouts for the Form 1041, e-file U.S. Income Tax Return for Estates & TrustsPDF version of this PublicationTopic Screen for this Publication
Publication 4163 Modernized e-File (MeF) Information for Authorized IRS e-file Providers for Business ReturnsPDF version of this PublicationTopic Screen for this Publication