A business vehicle rated over 6,000 pounds gross vehicle weight gets far more generous first-year treatment under the tax code than a lighter car. For 2026, the Section 179 deduction for vehicles over 6,000 pounds is capped at $32,000 for a heavy SUV, while a qualifying pickup truck or cargo van can be expensed in full up to the overall Section 179 ceiling of $2,560,000. Anything left over after Section 179 can be written off through 100-percent bonus depreciation, provided you use the vehicle more than 50 percent for business.1Internal Revenue Service. Rev. Proc. 2025-32
Why the 6,000-Pound Line Matters
The tax code defines a “passenger automobile” as a four-wheeled vehicle rated at 6,000 pounds unloaded gross vehicle weight or less. For trucks and vans, the standard is gross vehicle weight rather than unloaded weight.2Office of the Law Revision Counsel. 26 USC 280F – Limitation on Depreciation for Luxury Automobiles Vehicles inside that definition are locked into the annual “luxury auto” depreciation caps: for 2026, the maximum first-year write-off on a passenger car is $20,300 with bonus depreciation, and the remaining cost trickles out over five or more years at $19,800, $11,900, and $7,160.3Internal Revenue Service. Rev. Proc. 2026-15
Cross above 6,000 pounds and those caps disappear. The vehicle instead becomes eligible for Section 179 expensing and bonus depreciation on the same terms as most other business equipment. A $60,000 sedan takes roughly five years to fully depreciate. A $60,000 heavy SUV used entirely for business can potentially be written off in year one.
The $32,000 SUV Cap for 2026
Congress carved out a sub-cap for heavy SUVs to prevent full expensing of every large passenger vehicle. Any four-wheeled vehicle primarily designed to carry passengers on public roads that weighs more than 6,000 but no more than 14,000 pounds GVWR is limited to $32,000 of Section 179 expensing for 2026.1Internal Revenue Service. Rev. Proc. 2025-32 Most heavy SUVs, including full-size models like the Chevrolet Tahoe, Ford Expedition, GMC Yukon, Cadillac Escalade, Jeep Wagoneer, and Toyota Sequoia, fall inside this cap.
Three categories of vehicle escape the SUV sub-cap and can be expensed up to the full Section 179 ceiling:4Internal Revenue Service. Instructions for Form 4562 – Depreciation and Amortization
- Pickup trucks with a cargo bed at least six feet in interior length, where the bed is not readily accessible from the passenger compartment. A cap over the bed is allowed.
- Cargo vans and similar work vehicles with an integral enclosure covering the driver compartment and load area, no seating behind the driver, and no body section protruding more than 30 inches ahead of the windshield.
- Vehicles designed to seat more than nine people behind the driver’s seat.
The distinction has real dollar consequences. A $75,000 Ford F-150 with a 6.5-foot bed can be fully expensed under Section 179. A $75,000 Chevrolet Tahoe used the same way stops at $32,000 under Section 179 alone.
Bonus Depreciation Covers the Rest
Section 179 is only half the picture in 2026. The One, Big, Beautiful Bill Act restored 100-percent bonus depreciation for qualifying property acquired and placed in service after January 19, 2025.5Internal Revenue Service. One, Big, Beautiful Bill Provisions Bonus depreciation applies to whatever business-use cost remains after Section 179.
The math on a $70,000 heavy SUV used 100 percent for business looks like this: $32,000 comes off under Section 179, and the remaining $38,000 comes off under bonus depreciation. The full $70,000 is deducted in year one. On a qualifying pickup, Section 179 already covers the cost and bonus depreciation just backs it up.
Bonus depreciation applies to both new and used vehicles, provided the vehicle is new to your business. A used truck bought from a dealer qualifies on the same terms as a factory-fresh one.4Internal Revenue Service. Instructions for Form 4562 – Depreciation and Amortization
Business Use Must Exceed 50 Percent
None of these deductions are available unless the vehicle is used for business more than 50 percent of the time during the tax year. The tax code calls this “predominantly used in a qualified business use,” and the threshold is strict: exactly 50 percent does not qualify.2Office of the Law Revision Counsel. 26 USC 280F – Limitation on Depreciation for Luxury Automobiles
Business use is measured in miles. Divide business miles by total miles for the year. Commuting from home to your regular workplace does not count. Driving between job sites, to clients, on business errands, and to temporary work locations does. Your deduction is then scaled to that percentage: at 60 percent business use, you deduct 60 percent of the vehicle’s cost.
If business use drops to 50 percent or less in a later year, two things happen. You lose Section 179 and bonus depreciation going forward and must switch to the slower alternative depreciation system. And you face recapture: the difference between what you originally deducted and what you would have deducted under the alternative system is reported as ordinary income on that year’s return.2Office of the Law Revision Counsel. 26 USC 280F – Limitation on Depreciation for Luxury Automobiles On a vehicle where you took $60,000 in the first year, the recapture bill can be steep.
Recapture also comes back around when you sell. Depreciation you claimed on a business vehicle is recaptured as ordinary income on the sale, reported on Form 4797, Part III under the Section 1245 rules.6Internal Revenue Service. Instructions for Form 4797 A large first-year deduction is partly a timing benefit rather than a permanent reduction in tax.
Confirming Your Vehicle Qualifies
The number that decides everything is the gross vehicle weight rating, not curb weight. GVWR is the maximum total weight the vehicle is designed to carry, including passengers, cargo, and the vehicle itself. Curb weight measures the empty vehicle and is always lower. A vehicle with a 5,200-pound curb weight might carry a GVWR of 6,400 pounds once payload capacity is factored in.
The GVWR appears on the manufacturer’s label affixed to the driver’s side door jamb or interior door frame. It is also on the window sticker at purchase and in the owner’s manual. GVWR varies by trim, drivetrain, and options within the same model. An all-wheel-drive version may clear 6,000 pounds while the front-wheel-drive version does not. Always confirm the rating for your exact configuration.
Full-size pickups such as the Ford F-150, Chevrolet Silverado 1500, RAM 1500, and Toyota Tundra clear the threshold in most configurations. Full-size SUVs including the Tahoe, Suburban, Expedition, Yukon, Escalade, Wagoneer, and Sequoia typically sit above 7,000 pounds. Midsize models sit near the line: the Jeep Grand Cherokee, Ford Explorer with the 3.0-liter engine, BMW X5, Toyota 4Runner, Dodge Durango, Chevrolet Traverse, and four-door Ford Bronco have configurations above 6,000 pounds. Electric SUVs including the Tesla Model X, BMW iX, and Rivian R1S also clear it, largely because of battery weight. The door-jamb sticker on your specific vehicle is the only number that counts.
How to Claim the Deduction
The deduction is claimed on IRS Form 4562, Depreciation and Amortization. You will need the vehicle identification number, the GVWR from the manufacturer’s documentation, the date the vehicle was placed in service (the day it was ready and available for business use, not necessarily the purchase date), the total cost including sales tax and delivery, and your business use percentage.7Internal Revenue Service. Instructions for Form 4562
Part I of Form 4562 handles the Section 179 election. Part V covers listed property, which includes all vehicles, and is where you enter the date placed in service, business use percentage, and depreciation method. Sole proprietors attach Form 4562 to Schedule C of Form 1040. Corporations file it with Form 1120, and S corporations include it with Form 1120-S.
Records the IRS Expects
Vehicle deductions are among the most frequently scrutinized items in small-business audits. Without records, the IRS presumes all use is personal, and the burden of proof falls on you.
A contemporaneous mileage log is the most important record. For each business trip, note the date, starting and ending locations, odometer readings, and business purpose. Automated tracking apps are acceptable; after-the-fact reconstructions are treated skeptically. Keep the purchase agreement, financing documents, insurance records showing the vehicle, and maintenance receipts alongside the log.
Retain records for at least three years from the date you file the return claiming the deduction, and longer where a substantial understatement of income or unreported income extends the period.8Internal Revenue Service. How Long Should I Keep Records For a depreciable vehicle, keep everything until the statute of limitations expires for the year of sale, since you will need the records to calculate basis and recapture.
Getting the numbers wrong triggers the accuracy-related penalty of 20 percent of the underpaid tax when the IRS finds negligence, disregard of the rules, or a substantial understatement of income.9Internal Revenue Service. Accuracy-Related Penalty Overstating business use or claiming Section 179 on a vehicle that does not meet the weight threshold are the errors that draw it. Filing deliberately false information is a felony carrying up to $100,000 in fines for individuals ($500,000 for corporations) and up to three years in prison.10Office of the Law Revision Counsel. 26 USC 7206 – Fraud and False Statements Accurate mileage logs and purchase documentation are the difference between a defensible deduction and an expensive problem.