MeF Exempt Organization Stakeholders: We are providing additional eXtensible Mark-up Language (XML) Schemas and Business Rules for the following forms for Tax Year 2017 (Processing Year 2018). Tax Year 2017 Schema Versions: Form 990x (990, 990-EZ, 990-PF): TY2017v2.0 Form 1120-POL: TY2017v1.1 Form 990-N: TY2017v1.1 Form 8868: TY2017v1.1 990 Family 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 The Schemas and Business Rules versions listed above will be used in ATS and Production. XML Schemas The schemas are packaged by form type and version number. "Diff" files are included which identify the difference between the schema version listed above and the previous schema version. Business Rules Business Rules are packaged, by form type and version number. Two different formats are provided that contain identical information – Adobe (.pdf) and comma separated file (.csv). A column within the file identifies changes made from the previous version. Key Changes TY2017: All forms: Change to efileTypes.xsd Form 990x: ReturnData990PF.xsd and shared form changes. Form 1120POL: Shared form changes. If you have any questions about the Schemas or Business Rules, please send your inquiry to the MeF Mailbox.