Buyers of a new car assembled in the United States can now deduct up to $10,000 of the interest they pay on the loan, a first-of-its-kind break tucked into the One Big Beautiful Bill Act. Unlike the mortgage-interest deduction, it does not require itemizing, so even a filer who takes the standard deduction can claim it. The catch is a set of specific conditions on the vehicle, the loan and the buyer’s income, and missing any one of them disqualifies the write-off entirely.
What the $10,000 car-loan deduction covers
The deduction applies to interest on a loan used to buy a qualifying new vehicle for personal use, up to $10,000 per year. Treasury and the IRS have issued guidance on the new deduction spelling out that the vehicle must undergo final assembly in the United States and must be new, meaning it has had no prior owner. Used cars, leases and loans on business vehicles do not count.
Timing on the loan is strict. The debt has to be taken out after December 31, 2024, and the car must be purchased and placed in service during the 2025 through 2028 tax years. A loan signed in 2024, or a refinance of older debt, falls outside the window. Like the other new write-offs in the law, this one is temporary and expires after 2028 unless Congress renews it.
Because the deduction reduces taxable income rather than the tax bill directly, the real savings scale with a buyer’s bracket. Ten thousand dollars of deductible interest is also a high ceiling; reaching it generally requires a large loan balance in the early, interest-heavy years of repayment, so most buyers will deduct a smaller amount that still trims what they owe.
A realistic example shows why the ceiling rarely binds. On a $40,000 loan carried over five years at a 7% rate, first-year interest runs in the neighborhood of $2,600 and declines each year as the balance falls. A buyer in that position deducts the actual interest paid, not the $10,000 maximum, so the write-off is genuine but modest, and it shrinks over the life of the loan as a larger share of each payment goes to principal rather than interest.
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Income limits and how to prove the assembly rule
Higher earners see the benefit shrink. The deduction phases out once modified adjusted gross income passes $100,000 for a single filer or $200,000 for a married couple filing jointly, and it disappears entirely well above those levels. For a retired couple drawing Social Security and modest retirement-account withdrawals, that ceiling rarely bites, which makes the break more accessible to fixed-income households than many tax provisions.
Confirming the assembly requirement falls to the buyer. Final assembly location can be checked through the vehicle identification number, and filers claim the deduction on Schedule 1-A, the same new form used for the law’s tip, overtime and senior deductions, entering the VIN in the section devoted to car-loan interest. A vehicle built abroad, even from a familiar brand, does not qualify no matter how the loan is structured.
Reporting mechanics tighten in the second year. For 2026 and later, lenders must issue Form 1098-VLI, the Vehicle Loan Interest Statement, to any borrower who paid $600 or more in interest during the year, mirroring how mortgage interest is reported. For the 2025 tax year, before that form is mandatory, buyers should keep every lender statement showing interest paid so the figure can be substantiated at filing.
Why the break matters for older buyers
Retirees replace vehicles less often than younger drivers, but when they do, they frequently finance rather than drain a savings account to pay cash. For that buyer, the deduction can offset part of the borrowing cost on a new, safer vehicle at a stage of life when reliability and safety features carry real weight.
The provision also interacts with the rest of the law. A buyer might stack the car-loan deduction with the new senior deduction and, if applicable, the tip or overtime write-offs, all on the same Schedule 1-A. The IRS has posted resources on the new law to help filers determine which deductions they can claim together and how each is calculated.
The made-in-America condition is the provision’s defining feature, and it reflects an intent to reward domestic assembly rather than car buying in general. Two versions of the same model can carry different eligibility depending on where each was built, so a shopper cannot assume a familiar brand qualifies. Confirming the assembly location through the VIN before signing, and keeping the dealer’s paperwork, is the difference between a clean deduction and one the IRS disallows.
The smart move is to check the eligibility rules before signing, not after. A shopper who narrows the search to a U.S.-assembled model, finances the purchase with a loan dated in the qualifying window, and keeps clean interest records turns a routine car purchase into a multi-year tax benefit. One who buys an imported model or an older used car forfeits it, regardless of how much interest the loan carries.
This article was researched and drafted with the assistance of AI and reviewed by The Money Overview editorial team.
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