General information and technical guidance for Electronic Return Originators, Software Developers and Transmitters who participate in Modernized e-File (MeF) is provided below.

Tax Year 2011

General Information

The Assurance Testing System (ATS) opened on October 31, 2011.

Recommended names for PDF files attached to 1040 MeF submissions (updated 01/03/2012)

Recommended names for PDF files attached to MeF Business submissions

Foreign Country Code Listing

Standard Postal Service State Abbreviations and ZIP Codes

Tax Year 2011 Accepted Forms and Schedules for MeF Returns

 

Tax Year 2011 Form Attachment Lists:

• Tax Year 2011 Form 1040 Form Family Attachment List
• Tax Year 2011 Form 1065 Form Family Attachment List
• Tax Year 2011 Form 1120 Form Family Attachment List

Tax Year 2011 Return Due Dates

Publications

Publication 1436, Test Package for Electronic Filers of Individual Income Tax Returns for Tax Year 2011

Publication 3112, IRS e-File Application and Participation

Publication 4162, Modernized e-File Test Package for Forms 1120/1120-S/1120-F/7004

Publication 4163, Modernized e-File (MeF) Information for Authorized IRS e-file Providers for Business Returns 

Publication 4164, Modernized e-File (MeF) Guide for Software Developers and Transmitters 

Publication 4205, Modernized e-File Test Package for Exempt Organization Filings  (Forms 990 series, 1120-POL, and 8868)

Publication 4505, Modernized e-File Test Package for Forms 1065/1065-B

Publication 4594, Modernized e-File Test Package for Forms 2290, 8849, & 720  

User Guides

Automated Enrollment (AE) (Rev 10/2007)

MeF State and Trading Partners Reference Guide (Rev 1/2011)

MeF Submission Composition Guide (Rev 3/2008)

 Prior Year MeF Publications and Other Information:

Tax Year 2010 Modernized e-File (MeF) Publications and Additional Information

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