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Modernized e-File (MeF) Status Page

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.

MeF Alerts:

Modernized e-File (MeF) ATS/Production Calls (Updated at 9:00 a.m., Eastern on 4/17/2014)

Update: ATS/Production Calls have concluded for the peak filing season. Calls will resume in the fall when ATS testing starts.

Reminder to change URLs for the upcoming filing season  (Posted 6 p.m., EST on 1/28/2014)

The 2014 filing season startup began January 13 for Business Returns and is January 31 for Individual Returns. Please make a note of the following URLs to access production and Assurance Testing Systems (ATS)

Production Business and Individual

ATS Business and Individual

Please note that use of LA1 or LA2 URLs is discouraged and all requests should go through the above noted URLs. If you have any questions please send an email to the MEFMailbox.

Distribution of Modernized e-File (MeF) New Web Service Definition Language (WSDLs) (Updated 11:30 a.m., EST on 12/23/2013)

New WSDLs will be installed in the MeF test environment (ATS) on November 4, 2013. These new WSDLs will also be required for MeF Production when it reopens for Processing Year 2014, which is scheduled for January 13, 2014. Please note that starting November 4th you will be using the &quotla.alt&quot ( ) URL for ATS and &quotla main&quot ( ) URL for Production environments.

If you would like to receive the new WSDLs please send an email to MeF Mailbox ( The email request must include your company name and ETIN/EFIN. The required WSDLs will be sent to you as soon as it is verified that you are a valid software developer, transmitter or State user.

GetNewAcknowledgementNotifications Service Request (Posted 12:15 a.m. EST 3/24/2013)

The IRS is experiencing an issue with the GetNewAcknowledgementNotifications Service Request. We ask that the States refrain from using that particular Service Request until further notice for any submission received prior to March 24th. All other Service Requests are fully operational and production has resumed. Thank you for your patience and support.

Federal/State Tax Returns:

In order for standalone/unlinked returns to be accepted, the state must be participating in the State Standalone program and the Transmitter/Software Developer must NOT include an IRS Submission ID in the State Manifest. State Standalone returns may be either submitted in the same transmission (Send Submissions) as the federal return or in a different transmission.

State Testing

States wishing to transmit their own test returns need to send an email to IRS requesting this access. We will work with you to set up a software developer account in e-Services. When that is done you will then have to create system ids for these new software developer accounts in Automated Enrollment. You will not be able to use your state accounts or system ids to transmit. However, you can use your same Strong Authentication certificates for both accounts.

Historical Information for Processing Year 2013, 2012 and 2011


Reminder: If you have not received your Acknowledgements within 24 hours, please call the e-Help desk at (866) 255-0654.

Current Schema Releases

We have created XPATH to XPATH documents for each form type with additional information relating to the Tax Year 2013 XML standardization efforts. These documents can be found within the TY2013version 1.0 schema pages for each form type.

Page Last Reviewed or Updated: 17-Apr-2014