The following links provide information and technical guidance for software developers and transmitters who are interested in developing software for the Modernized e-File (MeF) Form 720 for tax year (TY) 2025. Included are the Extensible Markup Language (XML) schemas, business rules, release memorandum and specific instructions. Developers and other authorized IRS e-file providers can find information on e-filing returns through MeF in the Publication 4163 PDF and Publication 4164 PDF. Test scenarios for Form 720 can be found on the Modernized e-File (MeF) Assurance Testing System (ATS) page. Extensible Markup Language (XML) schemas, business rules and release memo - Throughout the year, multiple versions of these documents may be in use at the same time. Special attention should be paid to the release memo issue date and the projected start and end dates for Assurance Testing System (ATS) and Production. Tax year 2025 documents Tax year 720 MeF accepted 2025 forms and schedules PDF Tax year 2025 720 MeF return due dates PDF Tax year 2025 stylesheets: MeF stylesheet Tax year 2025 known issues and solutions Release memo Schema version ATS date Production date Business rules Comments 07/18/2024 Q4v1.0 Q3v1.0 Q2v1.0 Q1v1.0 Not valid for ATS Not valid for production Q4v1.0 Q3v1.0 Q2v1.0 Q1v1.0 Form 9465 Version Date available ATS date Production date CUv26.0 11/13/2023 Start: 12/17/2023 End: TBD Start: 01/29/2024 End: TBD C Uv27.0 06/06/2024 Not valid in ATS Not valid in production MeF XML schema and business rules for excise tax Form 720
