Valid XML schemas and business rules for 1120, 1120-F, 1120-H and 1120-S Modernized e-File (MeF)

The following links provide information and technical guidance for Software Developers and Transmitters who are interested in developing software for the Modernized e-File Forms 1120, 1120-F, 1120-H and 1120-S. You will find the Extensible Markup Language (XML) Schemas, Business Rules and other useful information separated by tax year.   

Forms 1120, 1120-F, 1120-H and 1120-S stylesheets can be downloaded for use in displaying XML tax return data.

Modernized e-File (MeF) schemas and business rules