In store for everyone this year...
IRS Plans Jan. 30 Tax Season Opening For 1040 Filers
The window at the IRS won't open for any income tax returns until Jan. 30th, about 2 weeks later than usual.
Returns that contain any of about 30 schedules will not be accepted until late February or into March. The most common kickouts will be those with depreciation schedules (most businesses), general business credits, and passive activity ( incl. rentals) loss limitation schedules.
Full list of trip wires here:
List of IRS forms that 1040 filers can begin filing in late February or into March 2013