File information returns with the IRS, including Forms 1098, 1099, and W-2G for payments made during 2012.
File Form W-3 with Copy A of all Forms W-2 issued for 2012.
File Form 8027 if you are a large food or beverage establishment.
File Form 2290 and pay the tax for vehicles first used in January.
Farmers and Fishermen: File 2012 Form 1040 and pay any tax due. However, you have until Apr 17 to file if you paid your 2012 estimated tax payments by Jan 15, 2013.