February 9, 2023 MeF 1065 stakeholders: We are providing tax year 2021 Extensible Markup Language (XML) schemas and business rules for the following forms that include new tax year form(s) and tax law changes. Included in the 2021v4.4 schema package are "DIFF" files which identify the difference between the 2021v4.3 schema package and the 2021v4.4 schema package. The XML standardization was applied and are available for program planning purposes. These schemas and business rules will be used in the Assurance Testing System (ATS) on March 5, 2023 and available in production on March 19, 2023. Form 1065 schemas and business rules distribution are now distributed through the Registered User Portal and your e-Services mailbox. This mailbox is part of the Secure Object Repository (SOR). Users will access their mailbox in their existing e-services account to pick up the schema and business rules packages. Instructions for accessing the SOR mailbox For the 1065 XML schemas, the instance document contained in the schema files is viewable with any generic Multipurpose Internet Mail Extensions (MIME) reader. See the 1065 "Instance Document" for a sample of 1065 transmission. Business rules are posted in two different formats which contain identical information – Adobe (PDF) and a comma-separated file (CSV). A column within the file identifies changes made from the previous version. If you have any questions about the schemas or business rules, please send your inquiry to the MeF mailbox. Form 1065 TY 2021 schemas and business rules
