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TY 2013 Valid XML Schemas and Business Rules for Form 1065/1065-B Modernized e-file (MeF)

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 1065/1065-B for Tax Year (TY) 2013. Included are the 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 4163 and Publication 4164. Test Scenarios for the 1065/1065-B for TY 2013 can be found in Publication 5078

XML Schemas, Business Rules and Release Memo - 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.

We have created a page to provide additional information relating to the XML standardization effort.  This site includes the XML Workbooks and additional helpful items to assist in the transition process. For more information on the XML standardization effort see the Modernized e-File MeF XML Standardization page.

Forms and Attachment Listing - TY2013 Form 1065/1065B Forms and Attachment Listing

Known Issues and Solutions - Known Issues and Solutions file (updated 12/05/2014)


TY2013 Valid XML Schemas and Business Rules for Form 1065/1065-B Modernized e-File (MeF)
Version Date Posted ATS Date Production Date
2013v5.0 08-05-2014

Start Date: 11-03-2014
End Date: 

Start Date: TBD
End Date:

2013v4.1 12-02-2013 Start Date: 12-30-2013
End Date: 11-02-2014
Start Date: 01-13-2014
End Date:
2013v4.0 10-28-2013 Start Date: 12-16-2013
End Date: 11-02-2014
Start Date: 01-13-2014
End Date:
2013v3.0 9-16-2013

Start Date:11-04-2013
End Date: 12-15-2013

Not Valid for Production
2013v2.0 8-5-2013 Not Valid for ATS Not Valid for Production
2013v1.0 6-19-2013 Not Valid for ATS Not Valid for Production


Page Last Reviewed or Updated: 05-Dec-2014