WASHINGTON — The Internal Revenue Service today reminded truckers and other owners of heavy highway vehicles that in most cases their next federal highway use tax return is due Wednesday, Aug. 31, 2016.
The deadline generally applies to Form 2290 and the accompanying tax payment for the tax year that begins July 1, 2016, and ends June 30, 2017. Returns must be filed and tax payments made by Aug. 31 for vehicles used on the road during July. For vehicles first used after July, the deadline is the last day of the month following the month of first use.
More detailed information can be from Truckng tax center
https://www.irs.gov/businesses/small-businesses-self-employed/trucking-tax-center