The Modernized e-File (MeF) will be taken off-line starting 9:00 pm Eastern, Friday, November 25, 2011 lasting until 6:00 am Eastern, Monday, November 28, 2011 while the IRS performs system upgrades.

The Modernized e-File systems (both Production and ATS) will not be operational during this timeframe. Please refrain from accessing the MeF Production or Assurance Testing Systems to transmit business/individual tax returns, retrieve acknowledgements or submit any other service requests.

We apologize for any inconvenience caused and thank you for your cooperation.

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