This just came over the wire.
A number of different IRS systems and services will be unavailable at different points over the Columbus Day Weekend.
The IRS Modernized e-File system will conduct its annual Columbus Day power outage beginning this Saturday, Oct. 11, at 3 p.m. Eastern Daylight Time and ending on Tuesday, Oct. 14, at 5 a.m. ET. The MeF systems will unavailable during this time.
????????????????????????? Really this weekend. Unbelievable.