A tax break created under the tax law signed in 2025 lets buyers of new vehicles deduct up to $10,000 a year in loan interest, and the rules the Treasury Department and the IRS published draw a hard line around who actually qualifies. The break, officially called “No Tax on Car Loan Interest,” runs only through 2028 and excludes anyone financing a used vehicle or signing a lease, no matter how the payment is structured. For an older household weighing a big vehicle purchase against a fixed income, the fine print on assembly location, income limits and loan terms matters as much as the $10,000 headline figure.
What Counts as a Qualifying Vehicle
The deduction covers interest paid on a loan originated after December 31, 2024, to buy a car, minivan, van, SUV, pickup truck or motorcycle with a gross vehicle weight rating under 14,000 pounds — a threshold wide enough to cover the trucks and SUVs many households already drive, short of the heaviest commercial-grade models. The vehicle has to be new in a specific sense: its “original use” must start with the buyer claiming the deduction, which is the test that rules out anything already titled to a previous owner.
It also has to have undergone final assembly in the United States. Buyers can confirm that from the vehicle information label posted on the car at the dealership, or by running the vehicle identification number through the National Highway Traffic Safety Administration’s plant-of-manufacture lookup, which the IRS points to directly in its guidance. The rule is assembly-specific rather than brand-specific: a model sold by a foreign automaker can still qualify if that particular vehicle was assembled at a U.S. plant, while a model from a domestic automaker can fail the test if it was built abroad. That is why the IRS points buyers to the label and the VIN lookup rather than to the manufacturer’s name alone.
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The $10,000 Cap, the Income Phaseout and What's Excluded
The deduction is capped at $10,000 in interest per year and phases out for taxpayers with modified adjusted gross income above $100,000, or $200,000 for a married couple filing jointly, according to the IRS’s summary of the Working Families Tax Cuts. That income test uses the same modified-adjusted-gross-income measure the law applies to its other new deductions, so a household already close to a phaseout threshold on one break is likely close on all of them. The loan has to be secured by a lien on the vehicle and used for personal, not business or commercial, purposes, and lease payments are excluded outright regardless of whether the lease carries a purchase option at the end.
A used vehicle is excluded on the same “original use” logic that rules out a lease: once a car has been titled to someone else, no later buyer’s loan on that car can generate deductible interest, even with a fresh loan from a different lender. Refinancing a loan that already qualified does not undo the deduction — interest paid on the refinanced balance stays eligible under the same rules.
A Deduction, Not a Credit — And Only One Piece of the 2025 Package
Because this is a deduction rather than a credit, its value depends on the buyer’s tax bracket: a taxpayer who claims the full $10,000 saves whatever share of that amount matches their marginal tax rate, not the full $10,000 itself, and someone who pays cash for a vehicle or otherwise carries no qualifying loan gets nothing from the provision. The deduction is available whether or not a taxpayer itemizes, which matters for retirees specifically, since most people 65 and older no longer itemize once a mortgage balance is paid down and the mortgage-interest deduction shrinks; the car-loan break does not require reviving itemized deductions to claim it.
The car-loan break is one of four new deductions created in the same 2025 law, alongside temporary deductions for tip income, overtime pay and an added $6,000 deduction for people 65 and older. All four run only through 2028 under current law and can be claimed on the same return without one reducing the value of another, though each has its own separate income phaseout.
The Paperwork Behind the Claim
Taxpayers claiming the deduction must list the vehicle identification number on the return for every year they take it. Lenders, in turn, are required to file information returns with the IRS and send borrowers a statement showing the total interest collected during the year — a reporting chain the agencies detailed in proposed regulations Treasury and the IRS issued December 31, 2025. The new interest statement lenders will send functions much like the Form 1098 statement mortgage lenders already issue, giving taxpayers a document to match against what they claim on the return.
The agencies built in transition relief for 2025 while lenders adjust their reporting systems, and public comments on the proposed rules remain open through February 2, 2026, before the reporting requirements lenders must follow are finalized. Because the regulations remain in proposed form, some procedural details could still change before they are finalized, though the deduction itself, its cap and its exclusions are set in the underlying statute, not the pending rule.
The Deductions Nobody Prints Beside It
Separately from the story above, a great deal of benefit money goes unclaimed each year because the programs are opt-in and no notice arrives. senior property tax breaks, circuit-breaker credits, and unclaimed property each carry their own 2026 income limit and their own office.
The guide sets out all eleven programs over 69 pages, with the 2026 limits for each and a 50-state phone directory, plus a printable tracker.
Read through all eleven programs and their 2026 limits in The Benefits Checklist.
AI assisted in the reporting and drafting of this article, which a human reviewed before publishing.
Warren Cohen is a finance writer based in Phoenix, Arizona, covering personal finance topics including credit, banking, and beginner investing. He earned his degree in business administration from Arizona State University and began his career working in consumer finance, where he gained direct experience with lending and credit systems. He now writes for personal finance websites and fintech platforms, focusing on clear, practical content that helps readers make informed financial decisions.
