Revised: April 18, 2024 MeF 94x stakeholders: The 94x quarterly forms schemas and business rules for tax year 2024, which included updates to the e-file attachments, e-file types and return header, were made available on April 18, 2024. The schemas and business rules will be used in the Assurance Testing System (ATS) on June 02, 2024, and in production on July 01, 2024. The distribution of MeF schemas and business rules is now 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 To receive the distribution of schema and business rule packages you must have an active e-Services account and be listed on an e-file application with the provider option of software developer. Your role on the e-file application must be principal, responsible official or a delegated user with MeF authorities. If you are a registered user in e-Services and are listed on a state e-file application, you will receive this distribution. We encourage you to review your e-file application now to verify you have the appropriate role and to verify you have access to your e-Services account. Note: You can access the login page, register for e-Services, reset your password, and make changes to your existing account on e-Services online tools for tax professionals. Extensible Markup Language (XML) schemas The "Diff" files for the 941x quarterly forms identify the changes from the tax year 2024Q1-Q4v1.0 schema package to the tax year 2024Q1-Q4v2.0 schema package. Business rules The 941x quarterly forms 2024Q1-Q4v2.0 business rules are available in two formats that contain identical information: Adobe (.pdf) and comma-separated values (.csv). If you have any questions about these schemas and business rules, please send your inquiry to the MeF mailbox. Tax year 2024 schemas and business rules for employment tax Modernized e-File (MeF) forms Modernized e-File (MeF) program information