When a new vehicle is put into service, the Form 2290 must be filed by the last day of the following month. If a vehicle was used during any part of a month, the tax will be calculated for that month as a whole. For example, if a vehicle was first used on the road on April 15th, it will be taxed as though it was used the entire month. If you first placed your vehicle on the road anytime in April, you must file your Form 2290 anytime before May 30th, 2017.