You must file Form 2290 and Schedule 1 for the tax period beginning on July 1, and ending on June 30, if a taxable highway motor vehicle (defined below) is registered, or required to be registered, in your name under state, District of Columbia, Canadian, or Mexican law at the time of its first use during the period and the vehicle has a taxable gross weight of 55,000 pounds or more.
Highway motor vehicles that have a taxable gross weight of 55,000 pounds or more are taxable. Form 2290 must be filed for the month the taxable vehicle is first used on public highways during the current period. Electronic filing is required for each return reporting 25 or more vehicles. However, all taxpayers are encouraged to file electronically. Electronic filing generally allows for quicker processing of your return. A stamped Schedule 1 can be available within minutes after filing and acceptance by the IRS.
The taxable gross weight of each vehicle to determine its category.