https://www.irs.gov/e-file-providers/2022-valid-xml-schemas-and-business-rules-for-1042-modernized-e-file-mef
The valid schemas and business rules for 1042 provides information to software developers and/or transmitters about the release of schemas and business rules...
xml schemasbusiness rulesvalidmodernized
https://www.irs.gov/e-file-providers/2025-valid-xml-schemas-and-business-rules-for-1120-1120-f-1120-h-1120-reit-1120-ric-and-1120-s-modernized-e-file-mef
2025 valid XML schemas and business rules for 1120, 1120-F, 1120-H, 1120-REIT, 1120-RIC and 1120-S Modernized e-File (MeF)
xml schemasbusiness rulesvalid
https://www.irs.gov/e-file-providers/2023-valid-xml-schemas-and-business-rules-for-1042-modernized-e-file-mef
The Valid Schemas and Business Rules for 1042 provides information to software developers and/or transmittors about the release of schemas and business rules...
xml schemasbusiness rulesvalidmodernized