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 File Form 8027 if you are a large food or beverage establishment.
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.
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 a new Form W-4 if you claimed exemption from income tax withholding in 2017 (see Publication 15 for details).
February 28, 2018 @ 12:00 am - March 1, 2018 @ 12:00 am Begin withholding on employees who claimed exemption from withholding in 2017 but did not file a W-4 to continue withholding exemption in 2018 (see Pub 15 for details).
February 28, 2018 @ 12:00 am - March 1, 2018 @ 12:00 am File Form 730 and pay the tax on wagers accepted during January.
February 28, 2018 @ 12:00 am - March 1, 2018 @ 12:00 am File paper Forms 1094-C and 1095-C with IRS if you are an Applicable Large Employer; For all other providers file paper Forms 1094-B and 1095-B with the IRS