Bigger, badder Section 179 tax deduction could POWER UP fleet electrification [update]

November 1, 2026 · by APW Pipeline

With national diesel prices inching towards $7/gallon and Tesla’s $290,000 Semi trucks finally making their way to paying customers, it’s worth revisiting how Trump’s One Big, Beautiful Bill Act (OBBA) helped beef up the Section 179 deduction, and look again at how it could help your fleet ditch diesel sooner rather than later.

Contents

Work the tax code Electrek’s Take Disclaimer

At the core of this thinking is the fact that the IRS does not distinguish between fuel choices, so there’s no separate depreciation category for electric- vs. diesel-fueled commercial trucks. The relevant classifications, then, are the vehicle’s use and property classes, and under the IRS’ depreciation guidelines, tractor units designed for over-the-road use are classified as 3-year properties and fall under the 20-year recovery threshold for 100% bonus depreciation, Tesla’s electric Semi can benefit from 179 just like their diesel-powered competitors. But don’t get me wrong – this isn’t just great news for Tesla Semi buyers. Electric garbage trucks, electric vocational trucks, battery electric reefer trailers, and even some big electric forklifts can potentially benefit from the same accelerated depreciation rules, since the IRS lists these as, “specialized business vehicles,” with no distinction between electric, diesel, natural gas, hydrogen, magic pixie dust, anything else.

There’s been some additional movement on the tax front since our original article, too. Earlier this year, the IRS issued Notice 2026-11, providing additional guidance on the permanent restoration of 100% bonus depreciation for qualifying property acquired after January 19, 2025. That means that eligible businesses might be able to combine Section 179 expensing with bonus depreciation when ordering qualifying fleet equipment – and ordering is the key word. The IRS has specific rules for determining when equipment is considered acquired under a written, binding contract, and your tax professional and truck dealer can probably help you figure out a way to make those rules work in your favor.

You can check out the original article (with a few corrections sprinkled in to align with the latest guidance from Notice 2026-11 and Publication 946) below. Give it a read, read the disclaimer twice, then let us know what you think in the comments.

Advertisement – scroll for more content

ORIGINALLY PUBLISHED 13OCT2026

VNR Electric semi; by Volvo Trucks.

After the Commercial Clean Vehicle Credit (Section 45W) expired on September 30, the “experts” rushed out predictions of an EV sales slowdown in Q4. But, with over 6,800 pages in the Internal Revenue Code still in play, a turbocharged Section 179 tax deduction could still power a strong year for commercial EVs.

The One Big, Beautiful Bill Act (OBBBA) of 2025 gutted America’s energy independence goals and ensuring its auto industry would fall even further behind the Chinese in the EV race, but the loss of Section 45W wasn’t the only change written into the IRS’ rulebook. Section 179, an immediate expense reduction that business owners can take on depreciable equipment assets, has been made significantly more powerful for 2025.

The section 179 expense deduction is limited to such items as cars, office equipment, business machinery, and computers. This speedy deduction can provide substantial tax relief for business owners who are purchasing startup equipment.

INVESTOPEDIA

The revised Section 179 tax credit (or, more accurately, expense reduction) allows for a 100% deduction for equipment purchases has doubled to $2.5 million, with a phase-out kicking in at $4 million of capital investments that drops to zero at $6.5 million. That can be applied to new and used vehicles, as well as charging infrastructure, battery energy storage systems, specialized tools, and more (as long as they’re new to you).

Work the tax code

By Mira Norian; via Investopedia.

“But wait,” as they say. “There’s more!” A revised Section 168(k) also allows for bonus depreciation on eligible equipment and property, accelerating depreciation for a reduced tax burden.

Section 179 and bonus depreciation aren’t mutually exclusive, either, which means that businesses don’t have to exceed the Section 179 spending cap to be able to take advantage of both. A fleet operator can elect to expense a portion of a qualifying vehicle or equipment purchase under Section 179, then apply bonus depreciation to the remaining eligible basis.

With 100% bonus depreciation restored for qualifying property acquired after January 19, 2025, that combination could allow businesses to deduct the entire qualifying business-use cost of an electric truck or other commercial equipment in the first year, subject to applicable eligibility requirements and limitations.

It’s a bit convoluted (what good tax code isn’t?), but these tax incentives are great for businesses looking to buy enough electric equipment assets to exceed the Section 179 spending limit – and, given the new Uber/Tesla semi truck purchase plan, the continued growth of the electric terminal tractor market, and the willingness of several utilities to incentivize both electric commercial vehicles and the deployment of smart EV charging infrastructure, that number may be bigger than you think.