Category: Tax Rates

The federal tax begins at a taxable gross weight of 55,000 pounds. But states administer registration in their own brackets and their own units, so the number that actually triggers a Schedule 1 check at the counter is often not 55,000 — it might be 54,999, 60,010, 28 tons, or, in Hawaii, 8,000 pounds net.

Compiled from state agencies’ published materials and the Instructions for Form 2290 (Rev. July 2026), as of August 2026.

One federal number, many state brackets

The federal rule doesn’t vary. A highway motor vehicle with a taxable gross weight of 55,000 pounds or more owes the tax — where taxable gross weight means the unloaded weight of the vehicle fully equipped, plus the unloaded weight of trailers customarily used with it, plus the maximum load customarily carried on both. See tax rates and weight categories.

States, however, don’t organise their registration systems around the federal number. They have their own weight classes, their own fee brackets, and their own vocabulary — built for their own purposes long before or after the federal tax existed. The HVUT check gets attached to whichever bracket sits closest. The result is a set of state-specific numbers that mark, in practice, when you’ll be asked for a Schedule 1.

Brackets that sit just off the federal line

Kentucky registers through county clerks using brackets that top out at 54,999 pounds before the next band begins — so the practical dividing line is expressed as the number just below the federal threshold rather than the threshold itself.

Kansas works from an over-54,000-pound bracket, again a state fee band rather than the federal figure.

Missouri is the largest divergence: the Schedule 1 check attaches at 60,010 pounds licensed weight. That number is a Missouri licensing concept, not a federal one — and it sits more than 5,000 pounds above where federal liability begins. A truck can owe the federal tax and sit below Missouri’s bracket.

Idaho routes registration through county assessors up to 60,000 pounds, with heavier vehicles handled elsewhere — a jurisdictional split rather than a tax threshold, but one that determines which building you walk into.

States that don’t use pounds

South Dakota speaks in tons. Its HVUT check attaches at the 28-ton bracket, and its tonnage decals — released from Pierre once proof is verified — carry the same unit. A carrier reading federal guidance in pounds and state guidance in tons has to do the conversion themselves, and the two systems don’t line up neatly.

States whose net reaches far below 55,000

These aren’t tax thresholds — they’re paperwork thresholds, and they catch operators who assume that being under 55,000 pounds means no HVUT paperwork at all.

Hawaii is the extreme case. Its HVUT enforcement program applies to all highway motor vehicles with a net weight of over 8,000 pounds. Vehicles under 55,000 pounds taxable gross weight owe no federal tax, but must file a state exempt certification (form DOT 4-705) certifying that fact — valid five years, expiring in years ending in 1 and 6. That’s a filing obligation at a weight nearly seven times below the federal line. See Hawaii.

Alaska operates a comparable declaration net starting around 8,001 pounds. California pulls vehicles into its Commercial Vehicle Registration Act system at 10,001 pounds and up, with its own fees and weight decals. West Virginia classes heavy trucks as Class B from 10,001 pounds. None of these creates federal liability — but all of them mean state commercial paperwork well before the federal tax applies. See California.

And the IRP line, which is different again

Apportioned registration generally begins at 26,000 or 26,001 pounds, or at three or more axles regardless of weight. This is the threshold most often confused with the tax threshold, because both come up in the same conversation.

They are unrelated. Plenty of IRP accounts hold vehicles that owe no HVUT at all — a two-axle straight truck at 30,000 pounds is squarely in the IRP and nowhere near the federal tax. Ohio’s IRP materials state the qualifying criteria at over 26,000 pounds while its 2290 requirement attaches at 55,000, in the same set of documents. See Ohio and the glossary.

The trap: declared weight travels back to the IRS

Here’s why state brackets aren’t merely trivia. The federal rule is that your taxable gross weight can be no less than the highest gross weight declared for the vehicle in any state.

So a weight you declare for a state purpose — to buy operating headroom, to fit a fee bracket, to satisfy a permit — sets a floor under your federal tax category. California makes this unusually visible: its CVRA weight decals “indicate the highest GVW/CGW at which the vehicle may be operated,” which is a public declaration stuck to the door of the truck. You cannot then file federally at a lighter bracket than the sticker claims.

Maine pushes this furthest, treating a temporary increase in registered gross weight as a registration subject to HVUT enforcement — so a truck plated below the threshold that buys a seasonal weight boost lands inside the net. See Maine and weight increase amendments.

How to think about it

Work the federal question first, from the federal definition: unloaded weight fully equipped, plus customary trailers, plus maximum customary load. If that lands at 55,000 pounds or more, you owe the tax — whatever bracket your state uses.

Then look up your state’s number separately, to know when the counter will ask and what other state obligations attach. And make sure the two are consistent: a declared weight that contradicts your filed category is a mismatch that surfaces at exactly the wrong moment.

Frequently asked questions

My state’s bracket is 60,010 but I’m at 56,000. Do I owe the federal tax?
Yes. Federal liability begins at 55,000 pounds taxable gross weight regardless of where a state draws its registration bracket.

I’m under 55,000 — why is Hawaii asking for paperwork?
Hawaii’s program covers vehicles over 8,000 pounds net weight. Under 55,000 you owe no tax but file a state exempt certification.

Is the IRP threshold the same as the tax threshold?
No. IRP generally starts above 26,000 pounds or at three axles; the tax starts at 55,000 pounds taxable gross weight.

Does my empty truck weight decide this?
No — that’s the most common error. Taxable gross weight includes the trailers you customarily pull and the maximum load you customarily carry.

I declared a high weight in one state only.
It still sets your federal floor. Taxable gross weight can be no less than the highest weight declared in any state.

Related: Tax rates and weight categories · Trailers and taxable gross weight · Form 2290 by state · Weight amendments

General information, not tax advice — we may make errors, and the IRS is the ultimate authority on federal requirements; each state’s own agency is authoritative on its registration brackets. State thresholds are compiled from published agency materials as of August 2026 and change without notice — confirm with the registering office. Verified against the Instructions for Form 2290 (Rev. July 2026). See our disclaimer and editorial standards.

If you expect a vehicle to be used 5,000 miles or less on public highways during the tax period — 7,500 miles or less for agricultural vehicles — you can claim suspension of the tax. You still file Form 2290 and still get a Schedule 1, but you owe nothing on that vehicle.

Suspended vehicles are reported in category W. From the Instructions for Form 2290 (Rev. July 2026).

How do I claim suspension?

Complete line 7 to suspend the tax on vehicles expected to run under the limit. You must also list those vehicles on Schedule 1, count the category W vehicles in Part II, and enter that number on Schedule 1, Part I, line b.

The filing deadline is the same as for taxable vehicles — the last day of the month following first use. Suspension changes what you owe, not whether or when you file.

Which miles count?

Miles on public highways. A public highway is any road in the United States that isn’t private — federal, state, county, and city roads all count.

Two rules that catch people out:

The limit applies to the whole period, across all owners. The mileage use limit applies to total mileage a vehicle is used during a period regardless of the number of owners. Buying a truck mid-year does not give you a fresh 5,000 miles.

Farm miles don’t count toward the agricultural limit. For agricultural vehicles, don’t take into account miles driven on the farm when determining whether the 7,500-mile public highway limit has been exceeded. Keep accurate records of farm mileage separately.

What is an agricultural vehicle?

Both conditions must hold. The vehicle is used, or expected to be used, primarily for farming purposes; and it is registered under state law as a highway motor vehicle used for farming purposes for the entire period. No special tag or plate is required.

“Primarily” means more than half the vehicle’s use during the period, based on mileage, is for farming.

Farming purposes means transporting any farm commodity to or from a farm, or use directly in agricultural production. Qualifying activities include cultivating soil, raising or harvesting commodities, clearing land, repairing fences and farm buildings, building terraces or irrigation ditches, cleaning tools or machinery, and painting.

A farm commodity is any agricultural or horticultural commodity, feed, seed, fertilizer, livestock, bees, poultry, fur-bearing animals, or wildlife. It does not include anything changed from its raw or natural state by processing — the IRS example is juice extracted from fruits or vegetables, which is not a farm commodity for this purpose. A vehicle used in canning, freezing, packaging, or similar processing operations isn’t being used for farming purposes.

What happens if I exceed the limit?

The tax becomes due. Figure it on page 2 based on the month the vehicle was first used in the tax period — not the month you crossed the threshold. Report it on line 2, check the Amended Return box, and write the month the limit was exceeded next to it.

File by the last day of the month following the month in which the limit was exceeded. Don’t complete Part II unless you’re also reporting other suspended vehicles alongside it.

Practical consequence: exceeding the limit in month ten still means paying tax figured from month one. There’s no partial credit for the months it stayed under.

Verifying last year’s suspended vehicles

Line 8 requires you to verify that vehicles listed as suspended on the prior period’s Form 2290 actually stayed under the limit. Check box 8a to confirm they did.

If any of them exceeded it, list those VINs on line 8b — and you must report the tax for those vehicles on a separate Form 2290 for the prior tax period and pay it. Attach an extra sheet if you need more room.

Selling a suspended vehicle

If you sell a vehicle while it’s under suspension, you must give the buyer a statement showing your name, address, and EIN; the VIN; the date of sale; the odometer reading at the beginning of the period; the odometer reading at the time of sale; and the buyer’s name, address, and EIN. The buyer attaches it to their Form 2290.

The stakes: if the vehicle later exceeds the mileage limit — counting the mileage recorded by the former owner — and you provided that statement, the new owner is liable. If you didn’t provide it, you’re liable too.

Recordkeeping

If tax is suspended on a vehicle, keep a record of actual highway mileage. For agricultural vehicles, keep records of miles driven on the farm as well. Records must be retained at least three years after the end of the period the suspension applies to.

Frequently asked questions

Do suspended vehicles count toward the 25-vehicle e-file requirement?
No. Category W vehicles aren’t included, since you aren’t paying tax on them.

Do I get a Schedule 1 for a suspended vehicle?
Yes. They’re listed in Part II and counted on line b of Part I.

I paid tax but ended up under 5,000 miles.
You can claim a credit — but only on the first Form 2290 filed for the next period, and a Form 8849 refund can’t be claimed until the period ends. See refunds and credits.

What if I guess wrong about the mileage?
Suspension is based on expected use. If actual use exceeds the limit, file the amendment and pay. There’s no penalty for having expected less, provided you report it on time.

Related: Tax rates and weight categories · Amendments · Refunds and credits

General information, not tax advice. Verified against the Instructions for Form 2290 (Rev. July 2026). See our disclaimer and editorial standards.

For a full tax period, Form 2290 tax starts at $100 for a vehicle with a taxable gross weight of 55,000 pounds and rises by $22 for each additional 1,000 pounds, capping at $550 for vehicles at 75,000 pounds or more. Logging vehicles pay 75% of those amounts.

Vehicles first used after July pay a prorated amount. All figures below are for the tax period July 1, 2026 through June 30, 2027, from the Instructions for Form 2290 (Rev. July 2026).

Annual tax rate table by category

How is the tax prorated for a mid-year truck?

If a vehicle is first used after July, tax is based on the number of months remaining in the period. The IRS publishes partial-period tables; the arithmetic is the annual rate multiplied by the remaining months over twelve.

Here’s category V — the most common — across every first-use month:

A truck first used in November owes $366.67 rather than $550. Buying late in the tax year meaningfully reduces the bill.

What is taxable gross weight?

It’s the sum of three things:

1. The actual unloaded weight of the vehicle fully equipped for service
2. The actual unloaded weight of any trailers or semitrailers fully equipped for service customarily used with it
3. The weight of the maximum load customarily carried on the vehicle and those trailers

“Fully equipped for service” includes the body, all accessories, all equipment attached or carried for operation or maintenance, and a full supply of fuel, oil, and water. It excludes the driver, equipment mounted for handling or protecting cargo, and special equipment like an air compressor or crane.

A trailer counts as customarily used if the vehicle is equipped to tow it.

How does state registration affect the weight?

It can set a floor. If your vehicle is registered in a state requiring a declaration of specific gross weight, your taxable gross weight must be no less than the highest gross weight declared in any state — and for a tractor-trailer combination, no less than the highest declared combined gross weight.

If your state registers by weight category instead, the taxable gross weight must fall within the highest category you’re registered for. If registration is based only on actual unloaded weight, use the three-part calculation above.

Weights declared for special temporary travel permits don’t count — unless those permits cover more than 60 days, or more than 2 months if issued monthly.

How is a bus calculated?

Differently. A bus’s taxable gross weight is its actual unloaded weight fully equipped for service plus 150 pounds for each seat provided for passengers and driver.

What qualifies as a logging vehicle?

Both conditions must hold. The vehicle is used exclusively to transport products harvested from a forested site, or exclusively between locations on a forested site; and it is registered under state law as a highway motor vehicle used exclusively for transporting harvested forest products. No special tag or plate is required.

Harvested products may include timber processed by sawing, chipping, or milling, provided the processing happened before transport from the forested site.

Frequently asked questions

What’s the maximum 2290 tax?
$550 per vehicle per year, at 75,000 pounds and above. $412.50 for logging vehicles.

Can I use my registered weight as taxable gross weight?
Not automatically. Registration sets a minimum, but taxable gross weight is calculated from unloaded weight plus trailers plus maximum customary load — which is often higher.

My weight went up mid-year. What now?
If it moves the vehicle into a new category, file an amended return by the last day of the following month and pay the difference. See corrections and amendments.

Do I pay for a truck that hardly runs?
Not if it stays at or under 5,000 miles (7,500 agricultural) — report it in category W as suspended, with no tax due.

Related: What is Form 2290? · Due dates · Who must file?

General information, not tax advice. Verified against the Instructions for Form 2290 (Rev. July 2026). Always confirm rates against the current-year form before filing. See our disclaimer and editorial standards.