Does Your Car Loan Qualify for the Auto Loan Interest Deduction?

A temporary federal tax deduction allows eligible taxpayers to deduct up to $10,000 of qualified interest paid on certain vehicle loans.

Final IRS and U.S. Treasury regulations clarify qualified vehicle loan interest, eligibility, and vehicle loan interest reporting requirements for lenders, servicers, and certain dealers.

Explore what consumers, lenders, and dealerships should know to take advantage of these changes.

What the auto loan interest deduction requires

Under the regulations, an auto loan qualifies for deductible interest only if several criteria are met. These include:

• An eligible new vehicle with final assembly in the United States
• A qualifying purchase loan incurred after December 31, 2024
• A first voluntary security interest in the vehicle
• The vehicle identification number (VIN) reported on the taxpayer’s return

The deduction applies to taxable years beginning after December 31, 2024, and before January 1, 2029. The final regulations are effective November 9, 2026. Simplified transition relief remains available for interest received in calendar year 2025, while full reporting applies for interest received beginning January 1, 2026.

New reporting requirements for lenders and dealers

An interest recipient receiving at least $600 of interest on a specified passenger vehicle loan in a calendar year generally must file Form 1098-VLI and furnish a statement to the payor of record (principal borrower). The $600 threshold applies loan by loan, rather than in total for each borrower.

Required data includes:

• Borrower and lender (or loan servicer) name, address, and taxpayer identification number
• Vehicle year, make, model, and VIN
• Interest received during the year
• Principal balance on January 1
• Loan origination date
• Assignment date if the loan was purchased

The rules clarify who reports in common securitization, servicing, payment-agent, and buy-here-pay-here dealer arrangements. Borrower statements must include prescribed information and language. Statements are due to borrowers by January 31, and Forms 1098-VLI are due to the IRS by February 28 (March 31 if filed electronically). Electronic filing is mandatory for filers that meet the general 10-return electronic filing threshold. The regulations provide no safe harbor for relying on dealer or manufacturer data to decide whether a vehicle qualifies, so lenders will need dependable data on original use, final assembly, and weight rating. For personal use, a lender may rely on use information in the retail installment sales contract absent conflicting information or obtain it from the borrower or the lender of record.

For many auto-finance operations, collecting, and reporting these data points may require changes to systems, servicing arrangements, and controls.

Which vehicles qualify for the auto loan interest deduction

To qualify, a vehicle must:

• Have a gross vehicle weight rating (GVWR) under 14,000 pounds
• Be designed for public-road use
• Be a car, minivan, van, sport utility vehicle, pickup truck, or motorcycle with at least two wheels that is treated as a motor vehicle under the Clean Air Act
• Have original use that commences with the taxpayer, meaning the taxpayer is the first person to take delivery after the vehicle is sold, registered, or titled, and the loan documentation treats the vehicle as new
• Have final assembly in the United States

Demonstrator vehicles held primarily for sale to customers generally do not start “original use” with the dealer, even if the dealer titles or registers them, but a vehicle the dealer holds for another purpose, such as a customer loaner, can. Vehicles returned within 30 days can reset this status, do not start original use with the returning purchaser, and may remain eligible for a later purchaser. Lease to own models often don’t qualify because original use begins with the lessor.

What counts as a qualifying auto loan

A specified passenger vehicle loan qualifies only if it finances the purchase of the vehicle and certain related costs, such as sales tax, registration fees, extended warranties, GAP coverage, credit insurance, and service plans. It doesn’t include:

• Negative equity (unless partially offset by a down payment. A down payment is applied first against any negative equity, which reduces the non-qualifying portion)
• Cash out amounts
• Insurance Collision and liability insurance that is not credit insurance
• Non-vehicle personal property

In addition, interest is never deductible under this provision if it is paid on:

• Fleet sale financing
• A loan for a commercial vehicle that is not used for personal purposes
• Any lease financing
• A loan for a vehicle with a salvage title or a vehicle intended for scrap or parts

Loans with mixed components must be allocated between qualifying and non-qualifying portions on a pro rata basis, so only the qualifying percentage of each interest payment is deductible. Refinancing retains eligibility only for the remaining principal of the original qualifying loan. A refinanced loan continues to qualify only if it is secured by a first lien on the same vehicle, and only up to the outstanding balance of the original qualifying loan (including accrued but unpaid interest) on the refinancing date. Cash-out amounts and products added at refinancing, such as GAP coverage or warranties, don’t qualify, and a borrower added at refinancing can’t claim the deduction on that loan.

The personal‑use requirement for the auto loan interest deduction

At loan origination, the buyer must reasonably expect the vehicle will be used more than 50% of the time over the expected period of ownership for personal purposes by the buyer, the buyer’s spouse, or certain relatives. Personal use means use other than in a trade or business or for the production of income, but use in performing services as an employee counts as personal use. This is a one time test; there is no annual reconsideration.

Deduction limits and who can claim it

The deduction is available whether the taxpayer itemizes or takes the standard deduction. After applying the $10,000 cap, the deduction is reduced by $200 for each $1,000 (or portion of $1,000) of modified adjusted gross income above $100,000 ($200,000 on a joint return). For individuals, modified adjusted gross income adds back foreign earned income and certain U.S. possession income excluded under sections 911, 931, and 933. For example, a single filer with $7,000 of qualifying interest and modified adjusted gross income of $124,200 can deduct only $2,000. Only individuals, decedents’ estates, and non-grantor trusts can claim it, and nonresident aliens generally can’t. Loans from related parties and purchases financed with unsecured debt, such as credit cards, don’t qualify.

Choosing between this deduction and business interest

If interest could also be deducted as a business expense, taxpayers must choose one category and may deduct that interest as either qualified vehicle loan interest or business interest. The same interest can’t be deducted twice. Allocating interest to business use may be more advantageous for taxpayers who would exceed the $10,000 cap or are near income based phaseouts. Interest deducted as business interest reduces the amount that can be deducted as qualified vehicle loan interest and must be reported as the IRS prescribes. Interest from multiple qualifying loans is combined before applying the $10,000 per-return cap.

What auto‑finance businesses need to do now

This reporting system may require meaningful operational changes to your organization. Lenders, servicers, and dealerships offering financing should review their processes against the final regulations, including steps to:

• Update systems to capture VINs, vehicle details, and principal balances, and the data needed to determine original use, U.S. final assembly, weight rating, and personal use
• Verify loan structures are accurately classified as qualifying or non-qualifying
• Establish processes for designating a principal borrower when multiple names are listed
• Incorporate the mandated language into borrower statements
• Adjust payment application rules to comply with IRS accrual period guidance to apply each payment first to accrued unpaid interest (a simple daily interest calculation is permitted) and to report interest accruing by January 15 consistently with the final rules
• Determine which charges are reported as interest. Points, deferred or capitalized interest, and origination, late payment, prepayment, and similar fees count if they are treated as interest for federal tax purposes, although amounts that create original issue discount generally aren’t deductible until paid

Because penalties apply for inaccurate or incomplete filings, early preparation is critical. The IRS declined to extend transition relief beyond 2025 or to add penalty safe harbors, so relief for 2026 and later depends on meeting the general reasonable cause standard.

Why this matters for consumers

The auto loan interest deduction provides a valuable benefit for many taxpayers, but the rules are intricate and highly dependent on proper documentation and reporting.

To claim the deduction, taxpayers will need accurate documentation, including the VIN and proof their vehicle and loan qualify. Lender reporting of VINs and vehicle and loan data gives the IRS a ready way to match deductions claimed on returns against third-party information. Borrowers should also confirm they incurred the loan and actually paid the interest they claim, as the required lender statement legend notes.

How CLA can help with the auto loan interest deduction

For lenders and dealerships, the reporting obligations represent significant operational shifts in auto‑finance compliance. Preparing systems, processes, and loan documentation now can help businesses and consumers take advantage of the deduction while avoiding potential penalties.

CLA can help your organization interpret the operational impact of the regulations, assess and redesign origination workflows, and confirm vehicle and loan eligibility at the outset. For lenders and dealers, we can help you meet the reporting and data‑collection requirements through process reviews, system changes, and practical advisory support.

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