FMV of a Leased Vehicle: Calculation, Lease Inclusion, and Records

The fair market value of a leased vehicle, for tax purposes, is what a willing buyer would pay a willing seller on the first day of the lease, and the IRS accepts the capitalized cost stated in your lease agreement as that figure when the contract clearly itemizes it.¹ This number matters mainly because it decides whether you owe a lease inclusion amount when you use the vehicle for business. For leases beginning in 2026, the inclusion rule applies once the FMV crosses $62,000 on day one of the lease.²

Three Ways to Establish the Value

The IRS asks for a reasonable method, documented, with the value fixed as of the first day of the lease term.¹ Three approaches cover almost every situation.

Use the Capitalized Cost in Your Lease

Federal consumer-leasing rules require your contract to state the agreed-upon value of the vehicle as part of the gross capitalized cost.³ The IRS says that when the capitalized cost is stated in your lease, use it as the FMV.¹ This is the cleanest choice for most lessees. The number is already in a signed document, it reflects the actual negotiated price, and it needs no outside sourcing. Use the full capitalized cost before any reduction for down payments or trade-in credits.

Pull a Value From a Published Pricing Guide

If the capitalized cost is not clearly broken out, national pricing guides such as Kelley Blue Book and the NADA Guide give standardized values based on make, model, year, mileage, and condition. Use the retail or private-party value, not the trade-in value; trade-in reflects a wholesale price to a dealer, not a transaction between two willing private parties. Pull the value as of the lease start date and save a screenshot or printout showing the date and the inputs.

Get a Written Dealer Appraisal

For heavily optioned, rare, or specialty vehicles, a pricing guide can miss the mark. A written appraisal from an unrelated dealer accounts for specific equipment packages, aftermarket modifications, and local market conditions that a national guide averages away. The appraisal should describe the vehicle’s actual condition at lease inception, including damage or high mileage. It costs more effort, but it holds up well if the number is later questioned.

Why the FMV Number Matters: The Lease Inclusion Amount

The lease inclusion amount levels the playing field between buying and leasing expensive vehicles. If you purchase a car for business use, the IRS caps annual depreciation. Without the inclusion rule, leasing the same car would let you deduct the full lease payment and produce a larger tax break than buying. The inclusion amount narrows that gap by adding a small figure back into your income each year the lease is above the threshold.

For leases beginning in 2026, the inclusion rule applies once FMV on the first day of the lease exceeds $62,000.² If your leased vehicle falls under that number, no inclusion amount is required and you can stop here.

How the Calculation Works

Revenue Procedure 2026-15 publishes a table of dollar amounts organized by FMV range and lease year, with columns for the first through fourth tax years and a fifth column for the fifth year and beyond.² The steps:

Find the row in the table where your vehicle’s FMV falls.
Read across to the column for the current lease year.
If you did not lease the vehicle for the full tax year, multiply the dollar amount by the number of days you had the lease during the year divided by the total days in the year.
Multiply the result by your business-use percentage. That is your inclusion amount for the year.¹

A Worked Example

Say you lease a vehicle with an FMV of $75,000 starting March 1, 2026, and use it 80% for business. The table shows a first-year dollar amount of $72 for vehicles valued between $74,000 and $76,000.² You had the lease for 306 of 365 days in 2026. The math: $72 × (306 ÷ 365) × 80% = about $48. That $48 gets added to your income for the year, partially offsetting the lease-payment deduction you claim on Schedule C.⁴

The amounts are modest in the lower FMV ranges. For a vehicle worth $200,000 or more, the fifth-year inclusion can top $3,000 annually, so ignoring the step on an expensive lease creates real audit exposure.

What FMV Does Not Do at Lease End

Lease-end situations often prompt questions about FMV, but the number does not do the work people expect.

If you buy the vehicle at lease end, your tax basis equals what you actually paid, not the vehicle’s current market value. A contract residual of $18,000 paid in cash gives you a basis of $18,000, even if the vehicle is worth $25,000 on the open market. The lease-end FMV tells you whether the buyout is a good deal; it does not change your basis.

If you resell shortly after a buyout and the vehicle was purely personal, the profit is a capital gain, short-term if sold within a year, long-term if held longer, reported on Form 8949 and Schedule D. For a business vehicle, any gain attributable to depreciation you claimed or could have claimed is treated as ordinary income under Section 1245, not capital gain.⁵⁶

FMV in Early Termination and Total-Loss Situations

If you end a lease before the contract runs out, the leasing company generally calculates the early termination charge as the difference between the remaining balance and the vehicle’s realized value, typically the wholesale price it fetches at auction or through dealer resale.⁷ The charge tends to be largest in the first year or two, when market value drops fastest and the gap between what you owe and what the car is worth is widest. Getting a current FMV estimate before calling the leasing company gives you a sense of how large the deficiency will be.

If a leased vehicle is totaled or stolen, insurance pays the actual cash value at the time of the loss minus your deductible. That figure often falls short of the remaining lease payoff, and you are responsible for the difference unless gap coverage is in place.

Penalties for a Wrong FMV

A misstated FMV ripples through multiple tax years because the initial value anchors every year’s inclusion calculation. If an incorrect FMV causes you to understate the inclusion amount, the IRS can assess an accuracy-related penalty of 20% of the resulting tax underpayment. A gross valuation misstatement, generally a claimed value off by 200% or more, doubles the penalty to 40%.⁸ These sit on top of the additional tax and interest.

The best defense is documentation. Save the lease contract showing the capitalized cost, any pricing-guide printouts you used, and any dealer appraisal. An FMV backed by a clear paper trail is unlikely to draw a penalty even if the IRS eventually disagrees, because the penalty requires negligence or a substantial misstatement, not a difference of opinion.

How Long to Keep the Records

The general rule is to keep records supporting a return for at least three years from the filing date. Leased vehicles stretch that timeline. Because the initial FMV anchors the inclusion calculation for every year of the lease, hold the documentation until the statute of limitations closes on the last tax year in which you claimed a lease-payment deduction. If you buy the vehicle at lease end and continue depreciating it or later sell it, keep the records until the limitations period closes on the year of disposition.⁹ In practice, that often means seven to ten years of paperwork.

Your records should include the lease agreement with the capitalized cost clearly identified, the pricing-guide printout or dealer appraisal used to establish FMV, a log of business versus personal miles for each tax year, and copies of the returns where you claimed the deduction.

1
Internal Revenue Service. Publication 463 (2025), Travel, Gift, and Car Expenses
2
Internal Revenue Service. Revenue Procedure 2026-15
3
eCFR. 12 CFR Part 213 – Consumer Leasing (Regulation M)
4
Internal Revenue Service. Instructions for Schedule C (Form 1040) (2025)
5
Office of the Law Revision Counsel. 26 USC 1245 – Gain From Dispositions of Certain Depreciable Property
6
Internal Revenue Service. Publication 544 (2025), Sales and Other Dispositions of Assets
7
Federal Reserve Board. Vehicle Leasing – End-of-Lease Costs
8
Office of the Law Revision Counsel. 26 U.S. Code 6662 – Imposition of Accuracy-Related Penalty on Underpayments
9
Internal Revenue Service. How Long Should I Keep Records