Permanent 100% Bonus Depreciation: What the One Big Beautiful Bill Means for Financing a Freightliner 108SD Dump Truck
The Rule That Finally Stopped Moving
For years, the bonus depreciation percentage available on a newly financed dump truck depended entirely on which calendar year the truck was placed in service. The 2017 Tax Cuts and Jobs Act had it scheduled to decline from 100% down to zero by 2027, stepping down to 80% in 2023, 60% in 2024, and 40% in 2025 under the rules that existed before mid-2025. That meant every fall, a lot of hauling businesses were making purchase-timing decisions based on a shrinking deduction window rather than on what their operation actually needed.
The One Big Beautiful Bill Act (OBBBA), signed into law on July 4, 2025, permanently restored 100% bonus depreciation for qualifying business property, including a dump truck chassis like the Freightliner 108SD, acquired under a contract signed on or after January 19, 2025, and placed into service after that date. The word that matters most here is permanent. This isn't a temporary patch that resets the countdown; the declining-percentage schedule that drove so much year-end buying pressure is gone for qualifying equipment going forward.
Why Trucks Get a Cleaner Answer Than Some Other Equipment
One detail that makes this especially relevant to a dump truck like the 108SD, rather than, say, a passenger vehicle: the so-called luxury-auto depreciation limits under Section 280F don't apply here at all. Those limits cap annual depreciation on "passenger automobiles," generally vehicles under 6,000 pounds of gross vehicle weight. A Freightliner 108SD runs a base GVWR around 69,000 pounds, which places it in an entirely different vehicle class and sidesteps the 280F conversation altogether. That's a genuinely different, and simpler, depreciation picture than a lot of the vehicle-tax-strategy content aimed at pickup trucks and SUVs, where the weight threshold is often the whole ballgame.
The 108SD itself is built as a severe-duty vocational chassis, with Cummins engine options ranging from the B6.7 and L9 up to the ISL rated around 380 horsepower and 1,250 lb-ft of torque, Allison 2000 and 3000 series automatics, and a frame built to handle dump, mixer, and other body-mounted vocational applications. It's a common chassis choice for contractors who need real GVWR headroom without stepping up to a full Class 8 highway tractor, which makes it a representative illustration for this piece, though the tax mechanics discussed here apply the same way to any qualifying truck chassis from any of our approved manufacturers.
Both New and Used Trucks Can Qualify
A meaningful share of dump truck purchases in this industry are used trucks, not new ones off the assembly line, and OBBBA's restored 100% bonus depreciation applies to both. The requirement is that the truck is "qualified property" under Section 168(k), acquired under a contract executed on or after January 19, 2025, and placed in service after that date, not that it has to be brand new. A used 108SD bought off a dealer's lot in good working order can qualify for the same full first-year write-off as a new one, assuming the other requirements are met, which is a real advantage for hauling businesses that have historically built their fleets through the used market.
The placed-in-service date is what actually controls, not the date on the purchase order or the invoice. A truck delivered and put to work hauling loads on January 20, 2025 or later, under a contract signed on or after January 19, 2025, generally gets the full rate. A truck placed in service earlier, or committed to under an earlier contract, follows the lower percentage that applied before the law changed.
Financing Structure Still Decides Who Gets the Deduction
As with any equipment or vehicle purchase, bonus depreciation follows tax ownership, not the payment method. A 108SD financed through a conventional truck loan or an Equipment Finance Agreement is generally treated as owned by the borrower for tax purposes starting on day one, which is what makes the deduction available to the business making the payments, even though the lender holds a lien on the title until the loan is satisfied. A true, fair-market-value lease works differently: the lessor typically retains tax ownership, and the deduction doesn't generally pass through to the business making lease payments. That distinction is worth working through with your tax professional before deciding how to structure the purchase, since it changes who actually benefits from this provision.
The EBITDA Interest-Deduction Restoration Matters Even More for Fleets
OBBBA didn't just touch depreciation. It also permanently restored the EBITDA-based calculation for the Section 163(j) business interest expense limitation, starting with the 2025 tax year. From 2022 through 2024, that limitation was calculated using EBIT, which excluded depreciation and amortization add-backs and tightened the effective interest-deduction cap specifically for capital-intensive businesses. A hauling operation running several financed trucks at once is exactly the kind of business that calculation used to squeeze.
With the EBITDA basis restored, depreciation and amortization get added back into the formula again, which generally means more room to deduct the interest paid across a fleet of truck loans than existed under the 2022-2024 rules. For a business weighing whether financing a third or fourth 108SD pushes it toward an interest-deduction ceiling, that restored room is a real, practical change, not just a technical footnote. As always, exactly how this applies to your specific fleet and debt load is a question for your own tax professional, not a generic article.
What Hasn't Changed
A permanent 100% bonus depreciation rule doesn't change how a lender underwrites a dump truck purchase. Time in business, credit profile, and the truck's own collateral value still drive approval and terms the same way they did before OBBBA. The deduction also only helps a business that has taxable income to offset in the year it's claimed; a business operating at a loss doesn't get immediate value from a bigger write-off, though the unused deduction may carry forward depending on the business's overall tax situation. And to be direct about it: nothing in this article is tax advice, and the specific treatment of any purchase depends on your business's full return. Talk to your tax professional before making a financing decision based on anything here.
A Worked Example, for Illustration Only
Say a hauling business finances a Freightliner 108SD dump truck for a purchase price in the neighborhood of $140,000 to $160,000 with a dump body installed, a realistic range as of late 2026. Under the pre-OBBBA 2025 schedule, that purchase would have been limited to a 40% first-year bonus depreciation write-off, with the remaining 60% depreciated over the truck's normal MACRS recovery period. Under the restored 100% rate, assuming sufficient taxable income exists to use it, the full purchase price can potentially be expensed in the placed-in-service year instead. The real dollar value of that difference depends on the business's tax bracket, other income for the year, and how Section 179 interacts with bonus depreciation on the same purchase, which is exactly why this has to be run through an actual tax return rather than estimated in general terms. This example illustrates the mechanics only.
Why Permanence Changes the Buying Calendar
The old declining schedule drove a specific kind of rushed decision-making every fall: finance the truck now to lock in a better percentage, or wait and accept a smaller deduction next year. That pressure is gone. A hauling business deciding whether to add a 108SD to its fleet in spring, summer, or December no longer has to weigh a shrinking bonus-depreciation percentage into the timing, because the percentage isn't shrinking anymore. Placed-in-service timing still matters for which tax year the deduction lands in, but the specific, recurring urgency that used to define so much fourth-quarter truck buying has genuinely eased.
State Taxes Don't Automatically Follow Federal Rules
A permanent federal bonus depreciation rule doesn't guarantee the same treatment on your state return. A number of states decouple from federal bonus depreciation, either fully or partially, requiring an addback and a slower state-level depreciation schedule even when the federal return gets the full 100% write-off. This isn't new with OBBBA; it's been true for years and varies state by state. If your 108SD is going to be based and registered primarily in a state that has historically decoupled from federal bonus depreciation, that's a real factor your tax professional needs to account for separately from the federal number.
Loan, EFA, or Lease: The Choice Still Carries Real Weight
Even with the federal tax-timing question simplified, how you structure the 108SD purchase still matters. A conventional truck loan or an EFA that makes your business the tax owner from day one is what makes bonus depreciation available to you directly. A true, fair-market-value lease trades that deduction for other advantages, like potentially simpler end-of-term decisions or different balance-sheet treatment, but the deduction generally doesn't flow through to the lessee in that structure. Neither approach is categorically better for every hauling business. The right one depends on your income for the year, how long you realistically plan to keep running this specific truck before trading it, and how the rest of your fleet is already financed. Walk through all three options with your lender and your tax professional before signing, not after.
Nationwide Financing for Hauling Businesses
BFC Equipment Loans finances dump trucks, mixer trucks, and semi trucks for hauling businesses across the country, startups and established fleets, strong credit and credit that needs a second look. We see meaningful volume out of Florida, Georgia, and the broader Southeast given our roots there, but the tax mechanics discussed in this piece apply the same way whether your 108SD is hauling debris in Orlando or aggregate outside Nashville.
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