The Car Loan Interest Deduction: The Lender Statement and Vehicle Details You Need
The Car Loan Interest Deduction: The Lender Statement and Vehicle Details You Need
The car loan interest deduction starts with a lender statement, but the statement is not the deduction. Form 1098-VLI tells the IRS how much interest you paid. It does not tell the IRS how much of that interest qualifies. That difference is where most errors on this deduction will come from.
For 2025, many lenders met their obligations with a portal entry or monthly statement under transition relief. For 2026, lenders that receive $600 or more of interest on a qualifying loan must furnish Form 1098-VLI by January 31 and file it with the IRS by February 28, or March 31 if filed electronically. [IRS]
That means the IRS will hold the same interest figure, the same VIN, and the same loan date you put on Schedule 1-A. Before assuming that figure is your deduction, consider having Steve Perry, EA, review your purchase paperwork and the statement your lender sends. Call 678-717-9818, email [email protected], or connect on LinkedIn at www.linkedin.com/in/steveperrybtm.
What the Lender Statement Shows
Form 1098-VLI reports the interest received, the principal balance at the start of the year, the loan origination date, the date the lender acquired the loan, and the vehicle's year, make, model, and VIN. The form itself carries a caution that the amount shown may not be fully deductible. [IRS]
The lender reports interest on the whole loan. The deduction only covers interest on the part of the loan used to buy the vehicle and items directly related to it. When a loan includes other amounts, the interest has to be divided proportionally, and the lender does not do that math for you.
A Worked Example
Consider a business owner who buys a new pickup assembled in Texas for family use. The purchase contract shows the following:
A $55,000 price including sales tax, title fees, and a service plan
A trade-in with $8,000 of negative equity rolled into the new loan
A $3,000 down payment
Total financed debt of $60,000
Under the final regulations, the down payment is applied first to the negative equity, leaving $5,000 of the loan that does not qualify. The qualifying portion is $55,000 of the $60,000, or about 92 percent. If the Form 1098-VLI shows $4,800 of interest, the qualifying amount is about $4,400. [IRS]
A return that claims the full $4,800 will not mismatch the form, which is why the error is easy to miss. It surfaces later, in an examination, when the IRS asks for the purchase contract and the owner has to reconstruct the numbers. Think of it as handing in a clean copy before the bell rings. The contract is easiest to find the week the truck is delivered.
Amounts That Usually Do Not Qualify
The final regulations allow interest on amounts customarily financed with the vehicle, such as sales tax, registration, service plans, warranties, and GAP coverage. Some items fall outside that line. There may be other items depending on the facts and circumstances, but common examples include the following:
Negative equity from a trade-in
Collision or liability insurance that is not credit insurance
A trailer, boat, or other property bought in the same transaction
Cash back paid to the buyer from the loan
New amounts added when the loan is later refinanced
The Vehicle Details That Carry the Deduction
The VIN must appear on your return each year you claim the deduction. Final assembly in the United States is proven for that specific vehicle, not the model in general, by the plant code in the VIN or the final assembly point on the window sticker. [IRS]
The vehicle must also be new to you, and when financed, the loan documents must treat it as new. A dealer demonstrator can qualify. A car you leased and then bought generally does not.
If your purchase paperwork is incomplete, or you are unsure whether your loan qualifies, speak with Steve Perry, EA before the return is filed and the numbers are locked in. Call 678-717-9818, email [email protected], or connect on LinkedIn at www.linkedin.com/in/steveperrybtm.
Issues Business Owners See Most
Personal use is decided when the loan is made, based on whether you expected the vehicle to be used personally more than half the time you own it. A later change in use does not change the answer, so a short note in the deal file about intended use is worth keeping. Interest on a loan from a related party, such as a company you control, does not qualify. [IRS]
Two other situations create missing paperwork. When two people sign the loan, only the borrower the lender lists as primary receives the statement. When a loan is sold during the year, each lender may issue its own form covering its part of the year, which is why the form shows the date acquired. A return filed before every statement arrives may report less than the IRS receives, or more than one lender reported.
How Options Narrow
Before filing, a question about this deduction is solved with a purchase contract and a calculator. After filing, it may require an amended return. After an IRS letter, it requires a written response by a deadline, with documents you may no longer have. A 2025 return that claimed interest on negative equity or extras is worth reviewing now, while the paperwork is still easy to locate.
Income also matters. The deduction is reduced by $200 for each $1,000 of modified adjusted gross income above $100,000, or $200,000 on a joint return, so at $50,000 over the threshold it is gone. Households near that line can sometimes plan around it. Households well above it should know before they rely on the deduction.
Planning Continues After the Purchase
The deduction is shaped at the dealership, confirmed by the lender in January, and tested by the IRS after filing. Many IRS issues come from what happens after a return is filed, after a letter arrives, or after a planning opportunity becomes visible and is left alone.
Good tax outcomes come from managing the year before the IRS forces the issue. For help reviewing your loan, your lender statement, and your next steps, speak with Steve Perry, EA. Call 678-717-9818, email [email protected], or connect on LinkedIn at www.linkedin.com/in/steveperrybtm.
Frequently Asked Questions
Is the amount on Form 1098-VLI my deduction?
Not necessarily. It shows interest on the whole loan. Interest on nonqualifying amounts, and the $10,000 cap and income limits, can reduce the deductible amount.
What if I paid less than $600 of interest?
The lender is not required to issue a form, but the interest may still qualify. Keep your loan statements and purchase contract.
Does refinancing end the deduction?
No. Interest on the refinanced balance can still qualify, but new money added in the refinancing does not.
What should I do if the IRS questions my car loan interest deduction?
Gather the purchase contract, every Form 1098-VLI, and the window sticker or VIN record, and respond by the date on the letter. Tax problems are easier to manage before the IRS process controls the timeline, so speak with Steve Perry, EA for a practical review. Call 678-717-9818, email [email protected], or connect on LinkedIn at www.linkedin.com/in/steveperrybtm.
