Business Auto Loan Calculator

How Business Auto Loans Work in 2026

A business auto loan, also called a commercial vehicle loan, finances cars, trucks, vans, or specialty vehicles purchased in the name of a business entity (LLC, S-Corp, C-Corp, or sole proprietorship). The vehicle title is held by the business, the loan appears on the business credit report, and the interest is tax-deductible as a business expense. Most banks require the business to have been operating for at least two years, demonstrate $100,000+ in annual revenue, and a minimum personal guarantor credit score of 650. Down payments range from 10% to 25%, with rates between 8% and 18% depending on credit profile, vehicle type, and loan term.

Per federalreserve.gov H.15 commercial loan data, the average commercial auto loan rate in May 2026 is approximately 9.5% for a five-year term, with strong-credit borrowers seeing 7.5–8.5% from regional banks and weaker-credit borrowers seeing 12–18% from dealer-financed and online lenders. SBA 7(a) loans can be used for vehicles but typically only for specialty/heavy vehicles where the loan amount exceeds $50,000 and conventional financing has been declined.

Section 179 & Bonus Depreciation in 2026

The biggest advantage of buying a vehicle through your business is the Section 179 deduction combined with bonus depreciation, which can let you write off most or all of the vehicle's purchase price in Year 1. Per irs.gov Publication 946 for tax year 2026:

• Passenger autos under 6,000 lb GVWR: Section 179 capped at $12,400 in Year 1. Bonus depreciation drops to 40% in 2026 (down from 60% in 2025). Total Year-1 write-off ~$20,400.
• SUVs and trucks 6,000–14,000 lb GVWR ("Section 179 sweet spot"): Up to $30,500 Section 179 + 40% bonus depreciation on the remainder. A $65,000 truck can yield ~$44,000 in Year-1 deductions.
• Vehicles over 14,000 lb GVWR (heavy commercial trucks): No Section 179 dollar cap — fully deductible in Year 1 within the overall $1,160,000 Section 179 limit.

The vehicle must be used at least 50% for business to claim Section 179. If business use is 60%, you deduct 60% of the eligible amount.

Bank vs SBA vs Dealer vs Lease — Which Wins?

For most established businesses with strong credit, a bank or credit union loan at 8–10% is the cheapest option. Dealer financing often appears competitive but bundles in markup of 2–4% above what you'd get going direct to a bank. SBA 7(a) loans only make sense if banks have declined or for vehicles requiring custom build-outs (food trucks, refrigerated vans). Leasing is best when business use is short-term, mileage is unpredictable, or the vehicle will be replaced every 2–3 years — but you lose Section 179 eligibility on a true lease (operating lease). A capital lease with a $1 buyout qualifies for Section 179, so structure matters.

Improving Your Approval Odds

Three factors matter most to commercial auto lenders: business credit score (Paydex 80+ or D&B 5A1), personal credit score of the guarantor (700+ ideal), and time in business (2+ years preferred). If your business is younger than two years, expect to provide a personal guarantee and 25% down. Vehicles with strong residual values (Ford F-150, Toyota Sienna commercial, Mercedes Sprinter vans) qualify for better rates because the lender's collateral risk is lower. Avoid balloon-payment commercial loans unless you have a clear refinance or sale plan — the balloon often equals 30–50% of the original price and can stress cash flow.

Last updated: May 2026. Tax provisions per IRS Publication 946 (2026) and Section 179 limits at irs.gov. Verify with your CPA before purchase.