The 6,000 Pound Vehicle Rule: Section 179 and Bonus Depreciation on SUVs and Trucks
For tax years beginning in 2026, the Section 179 heavy-SUV limit is $32,000. A qualifying vehicle may also be eligible for bonus depreciation on its remaining business basis, but weight alone does not establish a deduction. Confirm the exact vehicle classification, acquisition and service dates, qualified business use, prior tax-method elections and records before buying.
Which Weight Test Applies?
Section 280F limits annual depreciation, including Section 179 and bonus depreciation, on passenger automobiles. The definition generally uses a 6,000-pound unloaded gross vehicle weight threshold for passenger automobiles. For trucks and vans, the test instead uses gross vehicle weight, commonly documented by the manufacturer's gross vehicle weight rating (GVWR). These are different measures.
A qualifying truck or van with GVWR above 6,000 pounds is outside those passenger-auto depreciation caps. An SUV's tax classification matters, so do not assume every vehicle can use GVWR merely because it is marketed as an SUV. Retain the manufacturer specifications and door-label photo for the exact model, trim and configuration. A dealer's general model list, curb weight or actual loaded scale weight does not replace the applicable rating. See the car definition in IRS Publication 463.
The 2026 Limits and Vehicle Categories
| Vehicle category | Section 179 treatment | Bonus depreciation |
|---|---|---|
| Passenger automobile subject to Section 280F, using the applicable unloaded-weight or truck/van gross-weight test | Annual passenger-auto caps apply | Still subject to annual passenger-auto caps |
| Covered heavy SUV over 6,000 and not over 14,000 pounds GVWR | $32,000 SUV cap, plus general Section 179 limits | Eligible remaining business basis may qualify for 100% |
| Qualifying heavy pickup or other vehicle meeting a statutory SUV-cap exception | No special SUV cap; general Section 179 limits still apply | Eligible remaining business basis may qualify for 100% |
Revenue Procedure 2025-32, Section 4.24, sets the 2026 heavy-SUV limit at $32,000, the general Section 179 maximum at $2,560,000, and the investment phaseout threshold at $4,090,000. The general deduction also has a business-income limitation. These limits do not promise that every taxpayer can deduct the maximum, and states may differ from federal treatment.
The special SUV cap generally covers four-wheeled vehicles built primarily for public-road use, outside the Section 280F passenger-auto limits, with GVWR over 6,000 and not over 14,000 pounds. The statutory exceptions include:
- A cargo area at least six feet in interior length, open or enclosed by a cap, that is not readily accessible from the passenger compartment.
- A vehicle designed to seat more than nine passengers behind the driver's seat.
- A vehicle with an integral enclosure around the driver compartment and load-carrying device, no seating behind the driver, and no body section extending more than 30 inches ahead of the windshield's leading edge.
Keep evidence of the actual bed, seating and body configuration. A short-bed pickup does not satisfy the six-foot cargo-area exception just because another version of the same model does. The exceptions remove the special SUV cap, not the other deduction requirements. IRS Publication 946 explains these tests.
When 100% Bonus Depreciation Applies
Current federal law provides 100% bonus depreciation for qualifying property acquired and placed in service after January 19, 2025. A 2026 purchase is not enough by itself: review binding-contract acquisition rules, eligible new or used property, related-party restrictions, business use, and any election out. Property acquired before the cutoff can follow different percentages even if placed in service later.
Placed in service means ready and available for its intended business use. A deposit, order or delivery promise before year end is not the same as placing a usable business vehicle in service. Bonus generally applies after any Section 179 deduction, but Section 179 is not required simply to claim otherwise-available bonus. Compare the elections, income limits, state rules and future recapture before filing. See Section 179 versus bonus depreciation in 2026.
An $85,000 Heavy-SUV Example
This is a simplified illustration, not a client result. Assume an $85,000 qualifying truck-classified SUV with 8,000-pound GVWR is acquired and placed in service in 2026, is used 100% for qualified business purposes, meets the bonus requirements and has no disqualifying prior method election. Assume the taxpayer can claim the full $32,000 Section 179 amount under the general limits and income test and does not elect out of bonus depreciation.
| Step | Amount |
|---|---|
| Business basis | $85,000 |
| Section 179 on the heavy SUV | $32,000 |
| Remaining basis: $85,000 minus $32,000 | $53,000 |
| 100% bonus depreciation on eligible remaining basis | $53,000 |
| Total first-year deduction | $85,000 |
| Illustrative reduction at an assumed 37% federal rate | $31,450 |
The $31,450 illustration assumes the entire deduction reduces income taxed at 37% and ignores other tax interactions and state tax. It is not a credit, refund or guaranteed saving. At 70% qualified business use, the initial business basis would be $59,500 before applying the relevant limits and elections; the personal portion is not deductible.
Business Use, Commuting and Recapture
Most ordinary business cars, SUVs and pickups are listed property. To claim Section 179 or accelerated depreciation, including bonus, listed property must generally be used more than 50% for qualified business purposes. At 50% or less, straight-line depreciation under the Alternative Depreciation System (ADS) generally applies. Qualified nonpersonal-use vehicles have separate rules.
Ordinary commuting between home and a regular workplace is personal use, even if the vehicle has a business logo. A qualifying home office can affect some travel, but it does not make every trip business travel. Special restrictions apply to use by owners and related persons; including personal use in an owner's wages does not automatically make that use qualified business use.
If qualified business use falls to 50% or less during the recovery period, excess accelerated depreciation may have to be included as ordinary income. The calculation generally compares prior deductions with the applicable straight-line ADS amount and adjusts basis. A later sale can separately trigger depreciation recapture. Plan for several years of use, not just the purchase-year deduction.
What Your Mileage Records Must Show
A mileage app can help collect evidence, but downloading an app or recording GPS trips alone does not substantiate a deduction. Keep timely records showing:
- Trip date, destination, business purpose and business miles.
- Personal and commuting use, total annual mileage, and beginning and ending odometer readings.
- Purchase documents, cost and basis support, manufacturer weight evidence, and the placed-in-service date.
- Receipts and other expense support needed for the actual-expense method, plus any reimbursement reports.
Review automatic trip classifications and add the missing purpose while it is fresh. Keep exports and supporting records together. Estimates alone are insufficient; Publication 463 discusses adequate records and limited circumstances for other supporting evidence. Use the vehicle deduction and mileage-log guide to organize the documentation.
Check Prior Standard-Mileage Elections
The standard mileage rate includes a depreciation component, so it does not allow a separate Section 179 or bonus deduction. For an owned vehicle, choose the standard mileage method in the first year it is available for business use if you want to preserve that option. Claiming Section 179, bonus or disqualifying accelerated depreciation generally prevents later use of the standard mileage rate.
A vehicle first reported using standard mileage generally switches to straight-line depreciation if you later use actual expenses. Buying the vehicle in an earlier year, converting it from personal use, or moving it between an owner and an entity can change the analysis. Bring prior returns and mileage elections rather than assuming a new business-use year permits a full write-off. Compare both methods before making the first election.
S-Corporation Shareholder-Employees and Partners Are Different
For an S-corporation shareholder-employee's personally owned vehicle, a properly administered accountable reimbursement plan may reimburse substantiated business costs without wage income. Business connection, adequate accounting and return of excess reimbursements matter. Do not combine a mileage reimbursement with a second deduction for the same costs.
When a corporation owns the vehicle, employee personal use generally must be valued and included in wages on Form W-2, subject to the applicable fringe-benefit rules and any employee reimbursement. Assign someone to collect mileage and deliver the personal-use calculation to payroll. IRS Publication 15-B covers employer-provided vehicles. See also S-corporation owner expense planning.
Partners are not employees of their partnership and should not receive a W-2 for partner compensation. Partnership-owned vehicle use, partner reimbursements and unreimbursed partner expenses require partnership-specific treatment, records and agreement review. Sole proprietors also do not reimburse themselves as employees. Decide who owns the vehicle, who incurs the costs and who reports each item before purchase.
Before-Purchase Vehicle Checklist
- Vehicle classification and manufacturer evidence: save the VIN-specific specifications, weight-label photo, applicable unloaded weight or GVWR, and any bed-length, seating or enclosure evidence supporting an exception.
- Ownership and financing: identify the legal and tax owner, purchase versus lease arrangement, payer and intended reimbursement method. Confirm insurance and business needs with the relevant advisers.
- Expected business use: estimate qualified business miles separately from commuting and personal trips, then test whether use should remain above 50%. Document the operational reason for the purchase.
- Prior mileage-method elections: gather prior returns, depreciation schedules and any personal-to-business conversion history for the vehicle.
- Acquisition and service dates: retain the order or binding contract, purchase invoice, delivery record and evidence that the vehicle was ready and available for business use.
- Deduction comparison: model the $32,000 SUV cap where applicable, general Section 179 limits, bonus eligibility, state differences and future recapture. A deduction reduces taxable income; it does not pay for the vehicle.
- Payroll or reimbursement responsibility: name the person who reviews mileage, approves reimbursements, computes employee personal use or handles partnership-owner reporting, and sends the records to the preparer.
Primary Sources
- Revenue Procedure 2025-32, Section 4.24: 2026 Section 179 limits.
- IRS Publication 463: vehicle definitions, mileage methods and substantiation.
- IRS Publication 946: SUV exceptions, bonus eligibility and listed-property recapture.
- IRS Publication 15-B: employer-provided vehicles and fringe benefits.
- IRS partnerships guidance: partners are not employees.
Reviewed November 6, 2026. This guide is educational, not a recommendation to purchase a vehicle or a tax opinion on your deduction. Review your facts with a qualified tax professional.
Frequently Asked Questions
What is the 6,000 pound vehicle tax deduction rule?
For Section 280F, the 6,000-pound test generally uses unloaded gross vehicle weight for passenger automobiles and manufacturer-rated gross vehicle weight for trucks and vans. A qualifying truck or van above 6,000 pounds GVWR is outside the passenger-auto depreciation caps, but business use, substantiation and other deduction rules still apply. Verify the exact vehicle classification and manufacturer weight rating.
How much can you deduct for an SUV over 6,000 pounds in 2026?
For tax years beginning in 2026, the Section 179 heavy-SUV limit is $32,000. It generally applies to covered vehicles over 6,000 and not over 14,000 pounds GVWR. Eligible remaining business basis may qualify for 100% bonus depreciation when the acquisition and placed-in-service requirements are met. More than 50% qualified business use and adequate records are required; personal use is not deductible.
Do pickup trucks avoid the Section 179 SUV limit?
A qualifying pickup with a cargo area at least six feet in interior length, not readily accessible from the passenger compartment, is excluded from the heavy-SUV cap. Certain passenger and cargo vehicles also qualify for statutory exceptions. Check the exact configuration rather than a model name. The general Section 179 dollar, investment and business-income limits still apply.
What happens if business use falls to 50 percent or less?
For listed property, a drop to 50% or less qualified business use during the recovery period can trigger recapture of excess accelerated depreciation, including Section 179 and bonus depreciation. The excess over the applicable straight-line ADS amount is generally included as ordinary income. A later sale can separately trigger depreciation recapture.
Can I take Section 179 if I use the standard mileage rate?
No separate Section 179 or bonus depreciation deduction is allowed with the standard mileage rate. To preserve the mileage-rate option for an owned vehicle, choose it in the first business-use year. A later switch to actual expenses generally uses straight-line depreciation; prior mileage elections do not open a new accelerated deduction. Review the vehicle's full method history with your preparer.
Does a mileage app prove the deduction?
An app can help, but installation or automatic GPS tracking alone does not prove business purpose. Review trip dates, destinations, mileage and purpose, distinguish commuting and personal trips, reconcile total annual mileage, and retain purchase and expense records. The records together must substantiate the claimed use and costs.
Should my business or I personally own the vehicle?
Compare ownership, qualified business use, reimbursement and tax-method history before buying. An S-corporation shareholder-employee may use a properly administered accountable reimbursement plan for a personally owned vehicle. Personal use of a corporate vehicle generally requires valuation and W-2 wage reporting. Partners are not employees, so partnership-owner use and reimbursements need partnership-specific treatment rather than the same W-2 approach.
Related Reading
Buying a Vehicle Through the Business This Year?
Bring the vehicle specifications, expected business use, ownership plan and prior mileage elections. Ask AE Tax to review the deduction options and recordkeeping responsibilities before purchase.
Request Your Free Assessment