The Modernized e-File (MeF) Sunday maintenance build will be extended. The system will not be available from Sunday, January 20, 2013 at 1:00am, Eastern until Sunday, January 20, 2013 at approximately 11:00am, Eastern. The extended build window is needed to implement system enhancements impacting the upcoming filing season.
We apologize for any inconvenience this may cause. Thank you in advance for refraining from accessing the MeF Production and ATS environments during this period.
