Modernized eFile (MeF) Operational Status

More In Systems Status

Current System Status: 
Production System: Operational
Assurance Testing System (ATS): Operational

Scheduled Maintenance Build: A routine system maintenance build is scheduled every Sunday from 1:00 a.m. to 7:00 a.m. Eastern. (Updated 8/17/2017)


New Schemas and Business Rules are Available! Software Developers and State organizations 1ay access and download new Schemas and/or Business Rules from their e-Services )mailbox. In order to access these files you must have an active e-Services account and be listed on an e-File application with the provider option of Software Developer or State. Your role must be Responsible Official, or Delegated User with MeF authorities.(Updated 08/20/2018)

  • An early look of the Tax Year 2018 Form 1040 schema is available. It does not include Form 1040 Schedules (1 through 6) or Form 965 and attachments. This early look schema will be used for Assurance Testing but not in the Production environment. TY 2018 Stylesheets and Business Rules will be made available at a later date. (updated 08-16-2018)
  • Tax Year 2018 Schemas and Business Rules are available. (updated 08-20-2018)
    Schema and Business rules:
      • F990x              2018v2.1
      • F1120POL       2018v1.2
      • F1065              2018v3.0
      • F1041              2018v3.0
      • F1120              2018v4.0
      • F7004              2018v2.0
    Business Rules Only:
      • F720               2019v1.0 Q1-Q4 Business rules only


Bipartisan Budget Act of 2018

The first release of business rule changes incorporating the Bipartisan Budget Act of 2018 are available for Software Developers and State organizations. Please refer to the IMF/BMF file for the Business Rules details. (Updated 02/16/2018)

MeF Update (Friday, January 26, 2018):

Today our system incorrectly rejected some transmissions and returned an erroneous error message. The issue has been resolved. Thank you for your patience.

Modernized e-File (MeF) Production Calls:

Production calls begin Monday, January 29, 2018.

When: January 29, 2018 through February 1, 2018 from 4 to 5 p.m. Eastern Standard Time
Where: 1-888-331-8226 Access Code 3600320 (Updated 01/19/2018)

Updated Business Rules available :1040 Business Rules for Tax Year 2017 have been updated and posted in e-Services mailbox. (Updated 01/19/2018)

Filing Season Start dates:

The Internal Revenue Service has announced plans to begin accepting Individual tax returns Electronically on January 29, 2018. The IRS will begin accepting all Business tax returns on January 8, 2018

For more information regarding MeF, please see the Modernized e-File (MeF) Program Information on