February 28, 2018 @ 12:00 am - March 1, 2018 @ 12:00 am File Form 2290 and pay the tax for vehicles first used in January.
February 28, 2018 @ 12:00 am - March 1, 2018 @ 12:00 am File Forms 1096, 1098, 1099 (except Form 1099-MISC reporting non-employee compensation), and W-2G if you file paper forms.
February 28, 2018 @ 12:00 am - March 1, 2018 @ 12:00 am Deposit payroll tax for payments on Feb 21-23 if the semiweekly deposit rule applies.