Approved IRS e-File for Business Providers Find an Approved IRS Modernized e-file (MeF) for Business Provider that meets your tax filing needs. Coming Soon to the Modernized e-File (MeF) Program Find new initiatives to the MeF Program. Modernized e-File (MeF) Assurance Testing System (ATS) Modernized e-File (MeF) Assurance Testing System (ATS) information is provided to keep you up-to-date on the latest news and status of issues. Modernized e-File (MeF) Forms Find out what tax forms can be e-filed through the MeF system. Modernized e-File (MeF) Internet Filing MeF internet filing is available for Corporate, Employment, Estates & Trusts, Exempt Organization, Excise, Individual and Partnerships Tax Returns. Modernized e-File (MeF) Program Overview Find links to MeF form-specific information including known e-file issues and solutions for each tax year. Modernized e-File (MeF) Schemas and Business Rules Information regarding XML Schemas and Business Rules is provided for Software Developers and Transmitters who are interested in developing software for the MeF Program. Modernized e-File (MeF) Status Find IRS Modernized e-File Status (MeF) systems status, information on production calls, filing season start dates and system updates. Modernized e-File (MeF) Stylesheets MeF Stylesheets can be used by external stakeholders to display Corporate, Employment, Partnerships, Estates &Trusts, Exempt Organizations, Excise and Individual tax returns. Modernized e-File (MeF) User Guides and Publications General information and technical guidance for Electronic Return Originators, Software Developers, and Transmitters interested in transmitting tax returns through the MeF system.