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) 2020. 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 4163PDF and Publication 4164PDF. Test Scenarios for Form 720 can be found on the Modernized e-File (MeF) Assurance Testing System (ATS) Page. XML Schemas, Business Rules, and Release Memos - 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 2020 Documents Tax Year 2020 720 MeF Accepted Forms and SchedulesPDF Tax Year 2020 720 MeF Return Due DatesPDF Tax Year 2020 Stylesheets: MeF Stylesheets Tax Year 2020 Known Issues and SolutionsXLSX – Revised 05/10/2022 Release Memo Schema Version ATS Date Production Date Business Rules Comments 04/13/2020 Q4v1.3 Q3v1.3 Q2v1.3 Start: 06/21/2020 End: TBD Start: 06/21/2020 End: TBD Business Rules Change Page dated 07/22/2020 Business Rules Change Page dated 09/02/2021 02/12/2020 Q4v1.2 Q3v1.2 Q2v1.2 Q1v1.2 Start: 03/08/2020 End: TBD Start: 03/08/2020 End: TBD Business Rules Change Page – Q1v1.2, only dated 09/02/2021 07/23/2019 Q4v1.1 Q3v1.1 Q2v1.1 Q1v1.1 Start: 11/04/2019 End: TBD Start: 01/7/2020 End: TBD Business Rules Change Pages have been issued for each QTR dated 09/03/2019 06/11/2019 Q4v1.0 Q3v1.0 Q2v1.0 Q1v1.0 Not Valid for ATS Not Valid for Production Form 9465 Version Date Available ATS Date Production Date CUv24.1 02/10/2022 Start: 03/06/2022 End: TBD Start: 03/20/2022 End: TBD CUv24.0 10/17/2020 Start: 11/22/2020 End: TBD Start: 02/12/2021 End: TBD Modernized e-File (MeF) XML Schemas and Business Rules for Excise Tax Form 720
