May 31, 2018 @ 12:00 am - June 1, 2018 @ 12:00 am File Form 2290 and pay the tax for vehicles first used during April.
May 25, 2018 @ 12:00 am - May 26, 2018 @ 12:00 am Deposit payroll tax for payments on May 19-22 if the semiweekly deposit rule applies.
May 23, 2018 @ 12:00 am - May 24, 2018 @ 12:00 am Deposit payroll tax for payments on May 16-18 if the semiweekly deposit rule applies.