How to Write Off a Car Lease for Business

Yes, in the business-use proportion, using either the standard mileage rate or actual expenses. A lease changes two things about that choice. The standard rate, once picked, has to run for the entire lease term including renewals. And under actual expenses you deduct the lease payments themselves but may have to add back a lease inclusion amount.

Sources: IRS Publication 463, chapter 4 and Appendix A; IRS, About Schedule C (Form 1040); IRS Internal Revenue Bulletin 2026-29.

The lock-in rule is the first decision

For a leased vehicle, if you use the standard mileage rate in the first year, you have to use it for the whole lease period. Renewals count as part of the same period. This is stricter than the rule for an owned vehicle, where the first-year standard-rate choice preserves the freedom to switch year by year.

So the calculation you want is not just which method wins this year. It is which wins over the remaining term, on the mileage you actually expect to drive.

What actual expenses lets you deduct on a lease

Total these for the year, then apply your business-use percentage:

• The monthly lease payments, including the sales tax built into them
• Fuel or charging, oil, tires, repairs and maintenance
• Insurance premiums
• Registration and license fees

Two things you cannot deduct on a leased vehicle: depreciation and Section 179. Both require ownership, and on a lease the lessor holds the asset. That removes the single largest reason actual expenses usually beats the standard rate on an expensive vehicle.

The lease inclusion amount

If the vehicle's fair market value at the start of the lease exceeds the threshold the IRS publishes, you have to reduce your lease deduction by an inclusion amount taken from the tables in Publication 463 Appendix A. The mechanism exists to stop a lease on a luxury vehicle delivering a bigger deduction than the annual depreciation caps would allow on buying the same car.

The amount depends on the vehicle's fair market value and the year of the lease, is prorated for a partial year, and is itself scaled by your business-use percentage. Look up the current-year threshold and table before relying on the full payment as your deduction. The inclusion amount does not apply at all if you use the standard mileage rate.

Advance payments and up-front costs

A capitalized cost reduction, drive-off payment or any other advance payment is spread across the lease term rather than deducted in the year you write the check. A $3,600 down payment on a 36-month lease is $1,200 a year, then multiplied by business use. Deducting it all in year one overstates the first year and understates the rest.

Worked comparison over a full lease

A consultant leases a $42,000 vehicle at $610 a month, drives 14,000 business miles out of 20,000 total, and spends $2,400 a year on fuel, insurance and maintenance combined.

• Standard rate, second half of 2026 pricing: 14,000 miles at 76 cents is $10,640.
• Actual expenses: $7,320 of lease payments plus $2,400 of running costs is $9,720, at 70 percent business use gives $6,804, before any lease inclusion reduction.
• Standard rate wins by roughly $3,800, and requires no receipts.

Flip the mileage to 5,000 business miles and the standard rate produces $3,800 against an actual-expense figure driven by the lease payment, and the answer reverses. Mileage volume is the variable that decides it. Our comparison guide runs the general case.

Where does the lease deduction go on the return?

Both methods land on line 9 of Schedule C, car and truck expenses, as a single dollar figure. The form does not ask which method you used, but Part IV asks whether you have written evidence, and that answer has to be honest under either one. See where mileage goes on Schedule C.

Can I switch methods when I renew the lease?

A renewal of the same lease on the same vehicle is treated as part of the same lease period, so the standard-rate commitment carries through it. A genuinely new lease on a different vehicle is a fresh decision.

What if the business leases the car rather than me personally?

If an entity holds the lease and you drive it personally as well, the personal use is a taxable fringe benefit valued under the IRS rules for employer-provided vehicles. That is a payroll question rather than a Schedule C one, and it needs the same mileage split to compute.

The lock-in rule means this choice is worth getting right once. TruMile gives you the real business and personal mileage split to run the comparison across the whole lease term, not just the first year. Try TruMile →

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