How to Claim the New $10,000 Car Loan Interest Deduction

Millions of Americans drove home in a new car over the July 4 holiday weekend, and a large share of them qualify for a tax break most buyers still have not heard of. Interest paid on a qualifying new car loan is now deductible from federal taxable income, up to $10,000 a year, for tax years 2025 through 2028.

The deduction arrived in the One Big Beautiful Bill Act signed on July 4, 2025, and the IRS has published guidance spelling out exactly who qualifies and how to claim it. The rules are narrower than the headline number suggests, and the paperwork runs through a new form, so buyers who want the savings need to get a few things right starting now.

The break also works alongside the standard deduction. You do not need to itemize, which puts it within reach of the roughly nine in ten filers who take the standard deduction every year.

Which Vehicles and Loans Qualify

The vehicle must be new, never titled to a prior owner, purchased for personal use, and rated below 14,000 pounds, a threshold that covers nearly every sedan, SUV, minivan and light pickup on sale. The decisive test is final assembly in the United States. A window sticker lists the final assembly point, and the National Highway Traffic Safety Administration’s VIN decoder at nhtsa.gov confirms it for any specific vehicle. Plenty of American brands build popular models abroad and plenty of foreign brands build in the US, so check the VIN rather than the badge.

The loan has its own tests. It must have originated after December 31, 2024, be secured by a first lien on the vehicle, and come from a lender in the ordinary course of business. Refinanced loans keep their eligibility if the original loan qualified. Lease payments do not qualify at all, used vehicles do not qualify, and neither do loans from a family member.

Income limits apply. The full deduction is available up to $100,000 of modified adjusted gross income for single filers and $200,000 for joint filers, then phases down at a rate of $200 for every $1,000 above the line. Single filers above roughly $150,000 and couples above $250,000 get nothing.

What the Deduction Is Actually Worth

This is a deduction, not a credit, so it reduces taxable income rather than your bill dollar for dollar. Cox Automotive ran the numbers on a typical case: a $48,000 vehicle financed over 72 months at 9.5 percent with 12.5 percent down generates about $3,800 of interest in year one. At the 15 to 20 percent federal rates most new-car buyers pay, that translates to less than $750 of first-year tax savings, and the benefit shrinks each year as the interest share of payments falls.

Hitting the $10,000 cap requires a loan north of $100,000, which is why analysts describe the realistic savings as hundreds of dollars a year, not thousands. For a household financing a $722-a-month vehicle, the going average for new car payments this year, a $400 to $700 annual saving still covers a month’s payment or a year’s registration in most states.

One more wrinkle: most states have not matched the federal rule, so state taxable income is unchanged in the majority of the country. The deduction runs through the 2028 tax year and then expires unless Congress extends it.

How to Claim It at Filing Time

The deduction is claimed on Schedule 1-A of Form 1040, and the form asks for the VIN of the financed vehicle, so keep the purchase paperwork with your tax records. Lenders are required to report the interest you paid: expect a year-end statement showing total interest paid in 2026 to arrive by January 31, 2027, similar to the mortgage interest statements homeowners receive.

Buyers who financed a qualifying vehicle in 2025 can claim their 2025 interest when they file this year’s return, and anyone who missed it on a return already filed can amend. Tax software handles the calculation, but the VIN requirement and the US-assembly test are on you to verify before you count on the money.

Buying Smart Around the Deduction

The deduction rewards financing a new, US-built vehicle, but it should never drive the whole decision. A used car that costs $8,000 less beats a few hundred dollars of annual tax savings every time, and stretching to an 84-month loan to capture deductible interest hands the lender far more than the IRS gives back. Interest avoided always beats interest deducted.

Where it makes sense is at the margin. If you were already choosing between two similar new vehicles, US final assembly now carries a real after-tax discount worth checking. If you were near the income phase-out, timing a purchase to a lower-income year preserves the benefit. And if you took a July 4 weekend deal on a qualifying model, the only action needed is to file Schedule 1-A next spring with your lender’s interest statement and the VIN.

Dealers have noticed the incentive and some now advertise deduction eligibility on window stickers. Verify the claim yourself through the NHTSA VIN decoder before signing; eligibility depends on where your exact car was assembled, and misreading it costs you the deduction, not the dealer.

The provision revives a break that disappeared four decades ago. Before the Tax Reform Act of 1986, Americans could deduct interest on nearly all consumer debt, car loans included. Congress killed that deduction to pay for lower rates, and only mortgage interest survived. The new version is narrower, temporary and aimed at domestic manufacturing, but it marks the first time car loan interest has touched a 1040 form in the working lifetime of most of today’s buyers.

It also changes the math against the incentives that vanished this year. The $7,500 federal EV purchase credit ended in 2025 and the home charger credit expired on June 30, so an EV shopper’s federal support now depends largely on whether the model qualifies for the loan interest deduction. US-built electric models financed with a qualifying loan get the deduction like any other new car; imported ones get nothing, which quietly widens the price gap between domestic and imported EVs.

Keep three documents and the claim takes minutes: the purchase contract showing the date and first-lien financing, the window sticker or a printout from the VIN decoder showing US final assembly, and the lender’s year-end interest statement. Buyers who signed this weekend have until April 2027 to file the first claim on 2026 interest, but the window sticker leaves with the car, so photograph it before the trade-in truck does.

The US-assembly test produces some unexpected winners and losers. Every Tesla sold in America is built in California or Texas, most full-size pickups come out of plants in Michigan, Texas, Ohio and Kentucky, and several Japanese and Korean brands build their best-selling SUVs in Alabama, Indiana and Tennessee. Meanwhile some models wearing American badges are assembled in Mexico or Canada and fail the test outright. The window sticker settles every argument.

Two filing details trip people up. Married couples filing separately face the $100,000 single-filer phase-out threshold, which catches some two-income households off guard. And the deduction covers interest, never principal, fees or extended warranties rolled into the loan, so the January statement from your lender, not your monthly payment total, is the number that goes on Schedule 1-A.

The deduction will not rescue a bad deal, but it rewards preparation, and preparation is free. Check the VIN before you sign, keep the sticker, watch for the January statement and give your tax preparer all three. For a purchase most households make only every six or seven years, an hour of paperwork for several hundred dollars a year is the best hourly rate in the whole transaction.

Sources:

• https://www.irs.gov/newsroom/treasury-irs-provide-guidance-on-the-new-deduction-for-car-loan-interest-under-the-one-big-beautiful-bill
• https://www.cnbc.com/2026/02/13/interest-on-new-car-loans-tax-deductible.html
• https://turbotax.intuit.com/tax-tips/tax-deductions-and-credits/irs-rules-for-the-obbb-car-loan-interest-deduction-what-you-need-to-know/c7PzL4pUY
• https://www.kiplinger.com/taxes/new-gop-car-loan-tax-deduction
• https://tax.thomsonreuters.com/news/2025-2028-vehicle-loan-interest-deduction-what-you-need-to-know/