Section 179 for Commercial Trucks in 2026: What NJ Buyers Need

If you’re thinking about buying a work truck before the year ends, you’ve probably heard that Section 179 lets a business deduct the cost of a commercial truck in 2026 instead of depreciating it over several years. That’s partly true, and the details matter, especially in New Jersey, where the state return doesn’t follow the federal rules. For contractors, landscapers and delivery businesses in Shrewsbury, Monmouth County and Ocean County, November and December are when this question gets real.

This guide covers the 2026 federal numbers, the 2025 law change that brought back 100% bonus depreciation, why medium-duty trucks are treated differently from cars and SUVs, and the New Jersey catch. Figures are as of November 2026. This is general information, not tax advice. Confirm with your CPA or tax advisor before you buy.

The short version: two federal tools and the Dec. 31 placed-in-service date

Federal tax law gives businesses two main ways to deduct a qualifying work truck faster than ordinary depreciation: the Section 179 expense election and bonus depreciation, which the IRS calls the additional first-year depreciation deduction. Both can apply to a box truck, dump truck or cab-and-chassis used in your business.

For either one, the key question is whether the truck is placed in service in your business during the tax year, not simply ordered or paid for. For a calendar-year business, that points to December 31, 2026. Whether a specific truck delivered in late December counts depends on the facts, such as whether it’s ready and available for use, so don’t plan around a last-week delivery without talking to your tax professional first.

How you pay for the truck is a separate question. The rules turn on the truck being placed in service, not on whether it’s paid off. Ask your CPA how financing or leasing affects your own situation.

Section 179 for a commercial truck in 2026: the limit, the phase-out and the income cap

For tax years beginning in 2026, the IRS sets the Section 179 maximum at $2,560,000. The deduction starts phasing out dollar for dollar once the cost of qualifying property you place in service during the year exceeds $4,090,000. For comparison, the 2025 figures were $2,500,000 and $4,000,000. These numbers adjust every year.

There’s also a cap most small businesses should know about. The Section 179 deduction can’t exceed your taxable income from the active conduct of a trade or business. Bonus depreciation has no such income limit, which is one reason a CPA may use the two together, or choose one over the other, depending on the year you’re having.

• 2026 Section 179 maximum: $2,560,000 (as of November 2026)
• Phase-out starts once qualifying purchases for the year exceed $4,090,000
• Section 179 is limited to taxable income from your active trade or business
• Bonus depreciation has no business-income limit
• Certain SUVs have a separate, lower Section 179 cap: $32,000 for 2026

100% bonus depreciation is back and permanent: what changed in 2025

The 2025 federal tax law, P.L. 119-21, made 100% bonus depreciation permanent for eligible property acquired after January 19, 2025. IRS guidance issued in 2026 explains how it works, including an election to take 40% instead of 100% in the first tax year ending after January 19, 2025.

In practical terms, a qualifying work truck acquired and placed in service in 2026 may be eligible for 100% first-year bonus depreciation on your federal return. Congress can change tax law, so check the rules that apply to the year you file.

One related change: if you were planning around an electric truck, the federal 45W commercial clean vehicle credit ended for vehicles acquired after September 30, 2025.

Why medium-duty trucks are treated differently from cars and SUVs

Passenger cars and light vehicles are subject to annual depreciation dollar caps under Section 280F. Trucks rated over 6,000 lb gross vehicle weight aren’t subject to those caps. Class 3 trucks start at 10,001 lb GVWR, so box trucks, dump trucks and cab-and-chassis from a Class 4 cabover up to a Class 7 Hino L7 are well over that line.

That doesn’t mean anything goes. Under IRS rules, cargo trucks with a loaded gross vehicle weight over 14,000 lb, along with dump and refrigerated trucks, generally aren’t “listed property,” but Section 179 still requires more than 50% business use. If business use later falls to 50% or less, part of the Section 179 deduction can be recaptured, which means added back to income. Keep mileage and use records from the first day the truck goes to work.

The New Jersey catch: your state return doesn’t follow the federal rules

This is where many New Jersey buyers get surprised. New Jersey decouples from federal bonus depreciation. For Section 179, New Jersey follows the federal law as it stood on December 31, 2002, which means a $25,000 maximum for Corporation Business Tax (CBT) filers.

For Gross Income Tax (GIT), the same $25,000 limit applies at the partnership and S-corporation level. New Jersey uses Form GIT-DEP for the depreciation adjustment. The result: a truck you deduct in full on your federal return will usually be depreciated more slowly on your New Jersey return, and that state adjustment has to be tracked for years afterward.

These points come from the New Jersey Division of Taxation’s published guidance and its 2025 form instructions. The 2026 instructions may differ, so confirm with your CPA once they’re released.

Planning a year-end truck purchase without rushing a bad spec

A tax deduction doesn’t fix a truck that’s wrong for the job. A truck that’s too light for your loads, or too heavy for your drivers’ licenses, can cost you more over its working life than any first-year deduction saves. Start with the work, then let the timing follow.

• Confirm the GVWR you need, and whether your drivers will need a CDL to run it
• Ask how long any body or upfit work will take before the truck is ready for use
• Line up insurance and registration so the truck can go to work, not sit in the yard
• Start financing paperwork early so it isn’t the last thing holding up delivery
• If you’re trading in a truck, ask your CPA how the trade affects your basis

Next steps: pick the truck, line up financing, talk to your tax pro

If a truck that fits your work can’t realistically be ready for use by December 31, it may be better to buy the right truck in January than the wrong one in December. Your tax advisor can tell you what each choice means for your return.

Schwartz Truck Center is a family business, founded in 1919 and now at 585 Shrewsbury Ave in Shrewsbury. We carry new Hino L6 and L7 trucks, used box trucks and cab-and-chassis for operators in New Jersey, New York, Pennsylvania and Connecticut. Our sales team can talk through delivery timing on specific trucks, our finance desk can explain payment options, and our fleet team can help if you’re buying several units. Your CPA handles the tax side.

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