A bipartisan bill in the Senate would repeal the federal excise tax on new trucks and trailers. It hasn't passed. Until it does, here's what the tax actually means for your next equipment purchase.
Two senators — one from each party — introduced a bill this year called the Modern, Clean, and Safe Trucks Act, aimed at repealing the 12% federal excise tax (FET) on new heavy trucks and trailers. The American Trucking Associations and American Truck Dealers are both backing it, and the pitch is straightforward: the tax adds $15,000 to $30,000 to the cost of a new truck, trailer, or tractor, and it's been on the books since 1917. Repeal bills like this get introduced fairly often, and this one hasn't moved out of committee. So nothing has changed yet. But if you're planning a new equipment purchase this year, it's worth understanding exactly what this tax costs you today, while it's still very much the law.
The FET is a 12% tax on the sales price of the first retail sale of a taxable truck, trailer, semitrailer, or tractor. It applies to truck chassis and bodies over 33,000 pounds gross vehicle weight, trailer and semitrailer chassis and bodies over 26,000 pounds, and highway tractors over 19,500 pounds GVW when paired with a trailer bringing the combination over 33,000 pounds. In plain terms: most Class 8 trucks and the trailers that go with them are squarely inside this tax, and it's collected once, at the first sale.
Because it's calculated on the full sales price, the FET tends to grow along with the invoice — a heavily optioned new sleeper cab or a specialized trailer will carry a bigger dollar amount of tax than a stripped-down unit, even though the rate stays the same 12%.
The FET only applies to the first retail sale of a new unit — it doesn't apply again when that same truck changes hands used. That's actually part of the argument the bill's supporters are making: since the tax only hits new purchases, it nudges some owner-operators toward holding onto older trucks longer rather than upgrading to newer, safer, more fuel-efficient equipment. Worth keeping in mind if you're weighing a new purchase against buying a well-maintained used unit this year.
If you're shopping for a new truck or trailer, ask your dealer to itemize the FET separately on the purchase paperwork rather than folding it into a single "out the door" number. That figure matters for more than just your down payment — the FET becomes part of your cost basis in the vehicle, which is what your depreciation deduction (including any bonus depreciation or Section 179 election) gets calculated from. Knowing the real breakdown before you sign helps your preparer set up the depreciation schedule correctly from day one instead of untangling it later.
Weight ratings, body configurations, and how a truck or trailer is actually classified can shift whether — and how much — FET applies, and a handful of body types (certain shorter platform bodies, dump bodies, and refuse bodies, for example) fall outside the tax entirely. Whether a specific unit you're considering is fully taxable, partially exempt, or somewhere in between genuinely depends on the equipment and how it's built. This is general, educational information, not individualized tax advice — if you're mid-negotiation on a purchase, it's worth a real conversation about your specific unit rather than assuming.
Big equipment purchases ripple through your whole tax picture — basis, depreciation, and what you can absorb this year versus next. If you want a calm, guided way to plan around a purchase like this instead of figuring it out after the fact, The Calm & Confident Tax Prep Kit walks you through it step by step. Or start with the free Mid-Year Tax Reset and see exactly where you stand before you sign anything.
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