Whether you can claim Section 179 on a vehicle titled in your personal name depends entirely on your business structure. Sole proprietors and single-member LLC owners can deduct it directly, because the IRS treats the owner and the business as the same taxpayer. Owners of S-Corps, C-Corps, and partnerships cannot, because the business is a separate taxpayer and can’t expense an asset it doesn’t own. Those owners have to route the deduction through a reimbursement arrangement instead. The vehicle also has to be used more than 50% for business, and the dollar limits for 2026 depend on the vehicle’s weight.
Sole Proprietors and Single-Member LLCs
This is the clean case. A sole proprietorship has no legal separation from its owner, and a single-member LLC is a disregarded entity for federal tax purposes. The IRS sees one taxpayer. The vehicle sitting in your driveway with your name on the title is the same vehicle the business uses, from the tax code’s perspective.
You claim the deduction on Form 4562 and carry it to Schedule C, where it reduces both your income tax and your self-employment tax.1Internal Revenue Service. Instructions for Schedule C (Form 1040) The deductible amount is the business-use percentage of the vehicle’s cost, subject to the caps below.
S-Corporations and C-Corporations
A corporation is a separate taxpayer. It cannot take Section 179 on a vehicle it doesn’t own, and if the title is in your personal name, the corporation has no basis to expense the asset. This is the trap that catches most owner-employees.
The workaround is an accountable plan. The corporation reimburses you for the business use of your personal vehicle, and when the plan meets IRS requirements the reimbursement is tax-free to you and deductible by the corporation.2Internal Revenue Service. Publication 463, Travel, Gift, and Car Expenses An accountable plan has three requirements:
- The expenses have a business connection, meaning they relate to services you perform as an employee of the corporation.
- You substantiate the expenses to the corporation within a reasonable period, with records showing the date, destination, mileage, and business purpose.
- You return any reimbursement that exceeds your substantiated expenses.
Miss any of the three and the arrangement becomes a nonaccountable plan. Every dollar of reimbursement then becomes taxable wages subject to income tax withholding and employment taxes.3eCFR. 26 CFR 1.62-2 – Reimbursements and Other Expense Allowance Arrangements The plan is the entire mechanism that makes the personal-name arrangement work; treat it as a written policy, not a handshake.
One important consequence: under this structure, the corporation gets the deduction, not you. That’s the trade for keeping the title personal. If you want the business itself to claim Section 179, the business has to buy and title the vehicle.
Partnerships and Multi-Member LLCs
Partnerships sit in between. A partnership can elect Section 179 on property it uses in its active trade or business, and the deduction passes through to partners on Schedule K-1. But it can only elect Section 179 on property it owns. A vehicle in a partner’s personal name isn’t partnership property, so the partnership can’t expense it directly.
Whether the partner can deduct the vehicle depends on the partnership agreement and whether the partnership reimburses the expense. Where a deduction does run through the partnership, the Section 179 limits apply at both the partnership level and the individual partner level, and each partner’s deduction is also capped by their share of the partnership’s active business income.4Office of the Law Revision Counsel. 26 USC 179 – Election to Expense Certain Depreciable Business Assets
The 50% Business Use Rule
Before any of this matters, the vehicle has to clear a threshold: more than 50% business use. The IRS calls this “predominantly used in a qualified business use,” and it’s a hard line.5Office of the Law Revision Counsel. 26 USC 280F – Limitation on Depreciation for Luxury Automobiles At 51% business use, you qualify. At exactly 50%, you don’t.
The deduction scales with the percentage. A $60,000 vehicle used 75% for business has an eligible cost of $45,000 before any caps are applied.
Electing Section 179 also locks the vehicle into the actual expense method. You cannot switch to the standard mileage rate in later years, and you’ll need to track fuel, insurance, maintenance, registration, and loan interest for as long as you own it.6Internal Revenue Service. Topic No. 510, Business Use of Car
How Much You Can Actually Deduct in 2026
The IRS splits vehicles into two categories, and the caps are very different.
Passenger Automobiles (6,000 Pounds or Less)
Any four-wheeled vehicle designed primarily for public roads and rated at 6,000 pounds gross vehicle weight or less is a “passenger automobile” under the tax code.5Office of the Law Revision Counsel. 26 USC 280F – Limitation on Depreciation for Luxury Automobiles These face strict annual depreciation caps regardless of what you paid. For a passenger automobile placed in service in 2026, the maximum first-year deduction is $20,300 if bonus depreciation applies and $12,300 without it.7Internal Revenue Service. Rev. Proc. 2026-15 A $65,000 sedan gets the same first-year cap as a $30,000 one.
Vehicles Over 6,000 Pounds GVWR
Heavier vehicles escape the passenger automobile caps, which is why the 6,000-pound threshold gets so much attention. But there’s a separate Section 179 cap for sport utility vehicles: $32,000 for 2026.8Internal Revenue Service. Rev. Proc. 2025-32 It applies to four-wheeled vehicles designed to carry passengers and rated between 6,001 and 14,000 pounds.
Certain work vehicles are excluded from the SUV cap entirely and can be expensed up to the full Section 179 limit. The exclusions cover vehicles with a cargo bed at least six feet long (most full-size pickup trucks), vehicles designed to seat more than nine passengers behind the driver, and certain fully enclosed commercial vehicles with no passenger seating behind the driver.4Office of the Law Revision Counsel. 26 USC 179 – Election to Expense Certain Depreciable Business Assets A contractor buying a Ford F-250 with an eight-foot bed can potentially expense the full cost. A Chevrolet Tahoe is capped at $32,000.
What Recapture Looks Like
Section 179 is not a permanent write-off if things change. If your business use drops to 50% or below in any year after the vehicle is placed in service, the IRS claws back part of the deduction. You recalculate what depreciation would have been under the slower straight-line method and include the difference as ordinary income, reported on Form 4797.9Internal Revenue Service. Publication 946, How to Depreciate Property10Internal Revenue Service. About Form 4797, Sales of Business Property
Say you claimed a $32,000 Section 179 deduction in year one and shifted to mostly personal use in year three. The straight-line depreciation you would have been allowed over those two years might total only $8,000 or $9,000. The remaining $23,000 or more gets added back to your taxable income for the year business use dropped. Selling the vehicle triggers a similar result: because Section 179 drives the vehicle’s tax basis toward zero, most of your sale price becomes taxable gain, taxed as ordinary income up to the amount of depreciation previously claimed.
Records That Hold Up
Vehicle deductions are one of the most frequently audited areas on a tax return. The deduction lives or dies on your records.
A contemporaneous mileage log is the foundation. Record each business trip as it happens, not from memory in April. Each entry needs the date, starting and ending odometer readings, destination, and specific business purpose. “Client meeting” alone isn’t enough; “meeting with Johnson Electric re: bid on warehouse project” is the level of detail that holds up.6Internal Revenue Service. Topic No. 510, Business Use of Car
Because Section 179 requires the actual expense method, keep receipts for every deductible vehicle cost: fuel, oil changes, tires, insurance premiums, registration fees, and loan interest. Corporate owners running an accountable plan need this same substantiation to keep reimbursements tax-free.
Inadequate records don’t just reduce your deduction. The IRS can disallow it entirely, add interest on the underpayment, and assess a 20% accuracy-related penalty on top.11Internal Revenue Service. Accuracy-Related Penalty On a $32,000 disallowed deduction in a 24% bracket, the penalty alone could exceed $1,500. Whether the vehicle sits in your name or the corporation’s, that math is the same.