Not every heavy truck owes Heavy Vehicle Use Tax. If you expect a vehicle to travel 5,000 miles or less on public highways during the tax period, it is treated as a suspended vehicle and no tax is due on it.
For agricultural vehicles the limit is higher: 7,500 miles.
You still have to report it
This is the part people get wrong. A suspended vehicle is not left off the return. It goes on the Form 2290 in Category W, with no tax. It then appears on your stamped Schedule 1, which is what you need for registration, so leaving it off does not save you paperwork, it costs you the proof of payment.
If it goes over the limit
If a suspended vehicle ends up exceeding 5,000 miles (or 7,500 agricultural), the tax becomes due for the whole period. You report it on an amended Form 2290 by the last day of the month after the month the limit was exceeded. It is not backdated to a partial year: the vehicle is taxed as though it had never been suspended.
If it stays under, but you already paid
The other direction happens too. If you paid the tax on a vehicle and it turned out to run 5,000 miles or less over the period, you can claim a credit on a later Form 2290 or a refund on the appropriate IRS refund form. Ask us and we will point you to the right one.
Agricultural vehicles
A vehicle qualifies for the 7,500 mile limit if it is used primarily for farming purposes and is registered as a highway motor vehicle used for farming in the state where it is required to be registered. Primarily means more than half its use during the period.