Valid XML Schemas and Business Rules for 1120, 1120S, 1120-F and 7004 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, 1120S, 1120-F and 7004. You will find the XML Schemas,Business Rules and other useful information separated by tax year.  

Forms 1120, 1120S, 1120-F and 7004 Stylesheets can be downloaded for use in displaying XML tax return data.

Production & Acceptance Testing System (ATS) - Current Valid Schemas
Tax Year Form Type
2018 Form 1120, 1120S, 1120-F and 7004
2017 Form 1120, 1120S, 1120-F and 7004
2016 Form 1120, 1120S, 1120-F and 7004

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