Bigger, badder Section 179 tax deduction could POWER UP fleet electrification [update] — SkimNews
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- IRS issued Notice 2026-11, clarifying the permanent restoration of 100% bonus depreciation for qualifying property acquired after Jan. 19, 2025.
- One Big, Beautiful Bill Act raised Section 179’s deduction ceiling to $2.5 million, with phaseouts beginning at $4 million of capital investment and reaching zero at $6.5 million.
- Section 179 can be combined with Section 168(k): a fleet operator can expense part of a qualifying purchase and apply 100% bonus depreciation to the remaining eligible basis, potentially deducting the full business-use cost in year one, subject to eligibility rules and limits.
- Tesla Semi can benefit from Section 179 like diesel competitors because IRS rules classify over-the-road tractor units as three-year property under the 20-year threshold for 100% bonus depreciation, without separating fuel types.
- IRS specialized-business-vehicle rules potentially allow accelerated depreciation for electric garbage trucks, vocational trucks, battery-electric reefer trailers and some large electric forklifts, with no distinction between electric, diesel, natural gas or hydrogen powertrains.
- Written binding contracts determine when fleet equipment is considered acquired under IRS rules, making the timing of orders relevant to eligibility for restored 100% bonus depreciation.
- Section 45W expired Sept. 30, prompting forecasts of an EV-sales slowdown in Q4; Section 179 and bonus depreciation nevertheless remained available to commercial fleets.
Why it matters: Fleet operators gain a path to deduct eligible electric-truck and infrastructure costs in the first tax year by combining Section 179’s $2.5 million ceiling with 100% bonus depreciation for property acquired after Jan. 19, 2025. Purchases above the Section 179 cap can still use both, though a CPA commenter says heavy-vehicle deductibility itself has not changed.
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