HVUT Exemptions: Government Vehicles, Low-Mileage Suspension, and Transit Buses

Federal law exempts several categories of heavy vehicles from the heavy vehicle use tax, and suspends the tax for vehicles that see very little highway use. The main HVUT exemptions cover vehicles owned by state and local governments, the American Red Cross, nonprofit volunteer fire departments, nonprofit ambulance services, and Indian tribal governments performing essential functions; qualifying transit buses; qualified blood collector vehicles; and equipment that doesn’t count as a highway motor vehicle at all. A separate suspension applies to vehicles driven 5,000 miles or less on public highways during the tax period, or 7,500 miles for agricultural vehicles.¹ Each category has its own rules, and most still require a Form 2290 filing even when no tax is owed.

Government-Owned and Nonprofit Vehicles

Any vehicle operated by a state or local government is fully exempt under 26 U.S.C. § 4483(a). That includes city buses, county road maintenance trucks, and state highway department equipment. The federal government can also authorize exemptions for its own vehicles where imposing the tax would create a substantial burden.²

The IRS extends similar treatment to a short list of organizations serving public or humanitarian purposes: the American Red Cross, nonprofit volunteer fire departments, nonprofit ambulance services, and Indian tribal governments when vehicles are used for essential governmental functions. These exemptions don’t turn on how far the vehicle travels. As long as ownership and use don’t change, the exempt status stays in place. Keep the organizational charter, government status documentation, or IRS determination letter on hand to support the claim in an audit.

The Low-Mileage Suspension

Heavy vehicles that stay off public highways most of the year can qualify for a tax suspension rather than a full exemption. The tax is suspended for any vehicle expected to travel 5,000 miles or less on public highways during the tax period. Agricultural vehicles get a higher ceiling of 7,500 miles, and only public-highway miles count toward either limit; miles driven on the farm are excluded.¹

The tax period runs from July 1 through June 30. Even though no payment is owed, owners must still file Form 2290 listing the suspended vehicle. This works well for operators whose trucks live at job sites or on private property and only occasionally move on public roads.

When You Cross the Mileage Limit

If a vehicle exceeds 5,000 miles (or 7,500 for agricultural vehicles) at any point during the period, the full tax becomes due. The owner must file an amended Form 2290 by the last day of the month following the month the limit was exceeded, checking the “Amended Return” box and identifying the triggering month.³ The tax is calculated based on the month the vehicle was first used during the tax period, not the month the threshold was crossed. Accurate odometer tracking is what keeps this manageable.

Buying a Vehicle That’s Under Suspension

The mileage limit applies to the vehicle across the full tax period, no matter how many owners it had.³ Buying a truck the previous owner had under suspension means inheriting whatever miles are already on the clock. The seller must provide a written statement listing their name, address, and EIN; the vehicle’s VIN; the date of sale; and the odometer readings at both the beginning of the tax period and the time of sale. That statement gets attached to the buyer’s Form 2290.¹

The trap is easy to fall into. If the seller already put 4,200 highway miles on the truck and you add another 1,000, the vehicle has exceeded 5,000 and the tax lands on you. Get the odometer statement before you close.

Equipment That Isn’t a Highway Motor Vehicle

Some heavy equipment never owes the tax because it doesn’t meet the definition of a highway motor vehicle. This category includes non-transportation trailers and semi-trailers, mobile machinery designed for non-transportation work, and vehicles designed for off-highway use.⁴

Mobile Machinery

A self-propelled vehicle counts as mobile machinery only if it meets all three of these conditions:³

The chassis has machinery or equipment permanently mounted that performs construction, mining, drilling, farming, or similar operations unrelated to transporting loads.
The chassis was designed solely as a mobile carriage and mount for that equipment.
The chassis couldn’t haul other loads without substantial structural modification.

All three must be satisfied. A flatbed with a temporarily bolted-on generator won’t qualify. A purpose-built concrete pump truck with no cargo bed likely will.

Off-Highway Vehicles

Vehicles designed primarily to carry loads off-road can also fall outside the tax. The IRS looks at whether the design substantially limits highway operation, considering size, whether the vehicle is subject to standard licensing and safety requirements, and whether it can carry a load at a sustained speed of at least 25 miles per hour.³ Oversized mining haul trucks typically meet this test.

Transit Buses

Public transit operators can qualify for an exemption under 26 U.S.C. § 4483(c), but the rules are more involved than the ownership-based exemptions. The bus must be a transit type (local service) rather than an intercity type, and the operator must pass a 60-percent passenger fare revenue test for a qualifying test period.⁵

Under 26 CFR § 41.4483-2, at least 60 percent of the operator’s total passenger fare revenue during the test period must come from qualifying fare categories: fares of 60 cents or less, commutation or season tickets for single trips under 30 miles, or commutation tickets covering one month or less. Revenue from charters, advertising, and property rentals doesn’t count toward the total.⁶

The test period is generally the last three months of the preceding year, though the IRS can prescribe alternatives. If fare revenue drops below 60 percent for the applicable test period, the exemption is lost for that tax period. Detailed financial records that break down fare types are essential; this exemption lives or dies on bookkeeping.

Qualified Blood Collector Vehicles

A qualified blood collector organization is exempt from the tax on vehicles used primarily for collecting, storing, or transporting blood. To qualify, at least 80 percent of the vehicle’s use during the prior tax period must have been for blood-related operations.⁵ For a vehicle placed in service for the first time, the organization can certify that it reasonably expects to meet the 80-percent threshold during the current period. Unlike the other categories, qualifying blood collector vehicles don’t need to be reported on Form 2290 at all.¹

Filing for Exempt and Suspended Vehicles

Most exempt and suspended vehicles still have to be reported to the IRS on Form 2290. You’ll need an Employer Identification Number (a Social Security number won’t work), the 17-character Vehicle Identification Number for each vehicle, and the taxable gross weight.¹

For vehicles first used in July, Form 2290 is due by August 31.⁷ For a vehicle first used on public highways in any later month, the return is due by the last day of the following month. A truck first driven on public roads in October would need to be reported by November 30.

Vehicles claiming the low-mileage suspension are listed on Schedule 1 under Category W. Suspended vehicles don’t count toward the 25-vehicle threshold that triggers mandatory electronic filing, because no tax is being paid on them.³ Most owners e-file anyway, because the IRS returns a stamped Schedule 1 within minutes of accepting an electronic return.

The stamped Schedule 1 is your proof of payment or suspension. You need it to register the vehicle or renew license plates at your state motor vehicle office. Canadian and Mexican vehicles also need a stamped Schedule 1 to cross into the United States. Keep a copy in the cab for roadside inspections, and back up electronic copies.

Records That Protect Your Exemption

The IRS requires records on every taxable highway vehicle registered in your name for at least three years after the tax is due or paid, whichever is later. For suspended vehicles, the three-year clock starts at the end of the suspension period.¹ For each vehicle, keep:

A vehicle description that includes the VIN.
Load weights, in the form required by any state where the vehicle is registered.
Date acquired and the name and address of the seller.
The first month the vehicle was used on public highways in each period, plus proof that any earlier use wasn’t taxable.
Date sold or transferred, the buyer’s name and address, or how the vehicle was otherwise disposed of.
Actual highway mileage for any vehicle under suspension. Agricultural vehicles also need a record of miles driven on the farm.

These records must be available for IRS inspection at all times. Incomplete records are the fastest way to lose a suspension or exemption during an audit, and operating a heavy vehicle without a stamped Schedule 1 will also block state registration and plate renewal.

1
Internal Revenue Service. Instructions for Form 2290 (Rev. July 2025)
2
Office of the Law Revision Counsel. 26 USC 4483 – Exemptions
3
Internal Revenue Service. Instructions for Form 2290 (07/2025)
4
Federal Highway Administration. Heavy Vehicle Use Tax – What Is the HVUT and Who Must Pay It?
5
Office of the Law Revision Counsel. 26 USC 4483 – Exemptions
6
eCFR. 26 CFR 41.4483-2 – Exemption for Certain Transit-Type Buses
7
Internal Revenue Service. When Form 2290 Taxes Are Due