Business car lease: how leasing through your company works

The rules below come from IRS Publications 463 and 946, in their 2025 editions (the most recent as of September 2026), which also list the IRS's changes for tax year 2026. Check with your tax professional before you sign, because the right answer depends on your business use, your income and your state return.

Business car lease vs personal lease

In a business lease, the business is the lessee. Lenders offer these to more than large fleets: Toyota Financial Services, for example, says small and medium-sized businesses set up as corporations, partnerships or LLCs, and sole proprietorships, are eligible, with no fleet required (as of September 2026). Expect the lender to review both the business and its owners: a credit application, documents for the business and for its owners or co-signers, and sometimes tax returns and financial statements. For a young business, that can mean an owner signs too.

A lease in your own name can still be a business expense if you're self-employed: what counts is how the car is used and whether you can prove it, not only whose name is on the contract. If you're a W-2 employee, though, unreimbursed car costs generally aren't deductible on your federal return. Publication 463 explains that this deduction has been suspended for tax years beginning after 2017, with narrow exceptions such as Armed Forces reservists.

Deducting business car lease payments

For a car, truck or van you lease and use in your business, the IRS lets you figure the deduction with either the standard mileage rate or actual expenses. Choose carefully: if you use the standard mileage rate for a leased car, you have to use it for the entire lease period.

With actual expenses, the lease rules in Publication 463 work like this:

• Only the business share counts. You deduct the part of each lease payment that's for business use. Driving between home and your regular workplace is commuting, and commuting is personal.

• Advance payments are spread out. The IRS says advance payments must be spread over the entire lease period, so ask your preparer how to treat what you pay at signing.

• A disguised purchase isn't a lease. Payments made to buy a car aren't deductible as lease payments, even if the contract calls them lease payments.

• Records matter. Keep a mileage log showing dates, business miles, total miles and the business purpose of each trip; the recordkeeping chapter of Publication 463 explains what the IRS accepts.

Example, with made-up numbers: if 70 percent of the miles you drive in a year are business miles, you deduct 70 percent of that year's lease payments, then subtract that year's inclusion amount.

The IRS lease inclusion amount

Leasing isn't a way around the limits on writing off expensive cars. If you lease a car, truck or van for business for 30 days or more, and its fair market value on the first day of the lease was above the IRS threshold for that year, you reduce your lease deduction each year by an inclusion amount. The IRS describes the effect as similar to the depreciation limits you'd face if you owned the car.

1. Find the value. Use the car's fair market value on the first day of the lease. If your lease agreement states a capitalized cost, the IRS says to use that figure as the value.

2. Find the table. Publication 463's appendices list inclusion amounts by vehicle value and by year of the lease, with a separate table for each year leases began. The IRS publishes a new table each year, so use the one for the year your lease started.

3. Prorate and apply business use. Prorate the table amount for the days of the lease that fall in the tax year, then multiply by your business-use percentage. In the lease's last tax year, use the amount for the year before.

Your preparer will do the math, but notice that the capitalized cost on your contract feeds straight into it. That's one more reason to get a written quote that shows it; see capitalized cost.

Why Section 179 applies to purchases, not leases

Section 179 lets a business deduct all or part of the cost of qualifying property in the year it's placed in service, instead of depreciating it over several years. Publication 946 sets out the conditions: the property must be eligible, acquired for business use, acquired by purchase, and used more than 50 percent for business. A leased car fails the purchase test. Publication 946 also says that if you lease property from someone, you generally can't depreciate its cost, because you don't hold the incidents of ownership. Bonus depreciation, which the IRS calls the special depreciation allowance, is part of depreciation, so it's for owned property too.

So the real comparison is timing. Buying can front-load deductions, within the yearly limits on passenger cars; leasing spreads deductions across the lease. Which leaves you better off depends on your income this year and in the next few, your business use and your cash, and it's worth having your tax professional run both with real numbers. For the non-tax side of the decision, see lease or buy.

One more wrinkle: some contracts called leases are treated as purchases for tax purposes. If yours has terms that look like ownership, ask your preparer how the IRS would see it.