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or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.
The following links provide XML (Extensible Markup Language) schema information, Business Rules (reject criteria) and related announcements for Software Developers and Transmitters who are interested in developing software for Modernized e-File (MeF).
Current valid XML schemas and business rules for exempt organizations returns
Modernized e-File (MeF) status page
Modernized e-File (MeF) exempt organizations providers
Publications:
- Publication 5078, Modernized e-File (MeF) Test Package Business Submissions PDF
- Publication 4163, Modernized e-File Information for Authorized e-File Providers for Business Returns PDF
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Publication 4164, Modernized e-File Guide for Software Developers and Transmitters
User Guides:
Automated Enrollment (AE) PDF (Rev 10/2007)
MeF Submission Composition Guide - Modernized e-File System PDF (Rev 4/2015)