An S corp can deduct car expenses using either the standard mileage rate or the actual expense method, but the specific approach depends on whether the vehicle is personally owned or owned by the corporation. Proper documentation, such as mileage logs and receipts, is essential to justify the deduction to the IRS.
S corp–owned vehicles allow full expense deductions but raise fringe benefit reporting risks. Two primary deduction methods are available: the standard mileage rate and actual expenses. Accurate mileage logs and an accountable plan are essential to remain compliant.
Any vehicle with at least 6,000 pounds GVWR but no more than 14,000 pounds (3 to 7 tons). The 6,000-pound vehicle tax deduction includes many full-size SUVs, commercial vans, and pickup trucks such as: Ford F-150 (GVWR: 6,010-7,850 lbs) Chevrolet Silverado 1500 (GVWR: 6,800-7,100 lbs)
You can get a tax write-off if you purchase a vehicle that has a GVWR over 6,000 pounds for business purposes. Section 179 deductions allow companies to write off up to $31,300 of the purchase price of a qualifying vehicle used for business purposes.
The "2% rule" for S Corporations treats shareholders owning more than 2% of the company's stock (or voting power) differently for fringe benefits, classifying them like partners in a partnership, not regular employees; this means benefits like health insurance premiums paid by the S Corp must be included as taxable wages on their W-2, rather than being tax-free, though the shareholder can often deduct these premiums as an "above-the-line" deduction. This rule prevents them from participating in tax-advantaged Section 125 cafeteria plans, making benefits like Health FSAs unavailable on a pre-tax basis.
If the records of your corporation show that the owner is receiving minimal or no salary, you are likely to face an audit. Owners of S corporations generally must be paid reasonable compensation for their services.
For many businesses, leasing is usually the better option. Businesses enjoy a significant tax advantage by leasing rather than buying company vehicles. If the vehicle will be solely used for business purposes, you can also deduct the full cost of all monthly payments as well as all operating costs.
Qualifying Vehicles for the Tax Deduction
The $10,000 car loan deduction refers to the new "One Big Beautiful Bill Act (OBBBA)" provision, allowing eligible taxpayers to deduct up to $10,000 in interest paid on loans for new, U.S.-assembled vehicles, purchased after 2024 and used personally, from 2025-2028, regardless of itemizing, with income phase-outs starting at $100k MAGI single / $200k joint. To claim it, you'll use a new Schedule 1-A and need the VIN, receiving a Form 1098 from your lender showing interest paid.
The Complete List of S Corp Tax Deductions
Yes, buying a car under an LLC can be smart for business owners due to liability protection (shielding personal assets from accidents/lawsuits) and tax benefits (deducting expenses like interest, maintenance, gas). However, it requires commercial insurance (which is more expensive), a potential personal guarantee on loans, and careful record-keeping to maintain the liability shield, making it best for genuinely business-used vehicles, especially those driven by others.
S-Corp election lets you split your profits into “shareholder wages” (subject to 15.3% self-employment taxes) and “distributive share” (NOT subject to 15.3% self-employment taxes). Active owners in an S-Corp must pay themselves a reasonable salary, but realize a 15.3% savings on the rest of their retained profits.
An S corporation does have some potential disadvantages.
S-Corp reasonable salary is the market-rate compensation you must pay yourself before taking distributions, typically ranging from $40,000-$150,000+, depending on your role, industry, and location. The IRS requires this to prevent payroll tax avoidance, with penalties reaching 20% plus interest for non-compliance.
You choose an S corp over an LLC primarily for significant self-employment tax savings on profits, as S corp owners can pay a reasonable salary (subject to payroll taxes) and take remaining profits as distributions (not subject to self-employment tax). While an LLC offers flexibility, an S corp provides more structure, making it potentially better for larger profits or attracting investors, but it demands stricter formalities and compliance.
If you use your car only for business purposes, you may deduct its entire cost of ownership and operation (subject to limits discussed later). However, if you use the car for both business and personal purposes, you may deduct only the cost of its business use.
That means if your new vehicle has a gross vehicle weight rating (GVWR) of over 6,000 pounds and is placed into service after January 20, 2025, you may be able to deduct the full purchase price in the first year.
No Tax on Overtime is a provision that was included in a larger tax reform bill that passed in July 2025. It allows certain workers to deduct up to $12,500 in qualified overtime compensation from their taxable income on their federal income tax return. Joint filers can deduct up to $25,000.