How Does the New Tax Deduction for Car Loan Interest Work?

Sarah B

Generally, except for home mortgage interest, personal interest expense isn’t deductible for federal income tax purposes. With the passage of the legislation commonly known as the One Big Beautiful Bill Act (OBBBA), another exception has been added. That is, you might be able to deduct your car loan interest. But various rules and limits apply.


The Specifics

The OBBBA allows eligible individuals, including those who don’t itemize deductions, to deduct some or all the interest on a car loan they take out to purchase a qualifying passenger vehicle. The maximum car loan interest you can deduct is $10,000 per year for 2025 through 2028.


But the deduction is phased out starting at $100,000 of modified adjusted gross income (MAGI) or $200,000 for married couples filing jointly. For an unmarried individual, the deduction is completely phased out when MAGI reaches $150,000, and for married joint filers, the phaseout is complete when MAGI reaches $250,000.


Another limit is that only certain vehicles qualify for the deduction:


  • The vehicle must be a car, minivan, van, SUV, pickup truck or motorcycle with a gross vehicle weight rating under 14,000 pounds,
  • The vehicle must have been manufactured primarily for use on public streets, roads and highways,
  • The vehicle must be new, and
  • The “final assembly” of the vehicle must have occurred in the United States.
  • You must report the vehicle identification number (VIN) on your tax return. A car assembled in the United States has a special VIN to signify that it’s American-made.


Loan-Related Requirements

The loan must be taken out after 2024 and must be a first lien secured by a vehicle used for personal purposes. If an original qualified car loan is refinanced, the new loan will be a qualified loan for purposes of the deduction as long as: 1) the new loan is secured by a first lien on the eligible vehicle, and 2) the initial balance of the new loan doesn’t exceed the ending balance of the original loan.


Also be aware that interest on loans from certain related parties doesn’t qualify. And lease financing isn’t eligible.


To claim the deduction, you’ll need to substantiate how much interest you paid during the year. For that, your car loan lender must file an information return with the IRS specifying the amount. (Transitional relief is available for 2025.)


Final Thoughts

The new deduction for auto loan interest can make buying a car less expensive. But you need to consider the eligibility requirements. First, is your income below the phaseout threshold? Second, have you checked that the car you’re considering will qualify?


Also, don’t make a decision based solely on the ability to qualify for the tax deduction. In some cases, buying a used or foreign vehicle or leasing a vehicle might make more sense, even if you won’t be able to claim a tax deduction.


Finally, keep in mind that the deduction will expire after 2028 unless Congress acts to extend it. Have questions about the deduction? Contact the office.

January 2026 Newsletter

By Sarah Bolton • January 7, 2026
Our regularly updated newsletter provides timely articles to help you achieve your financial goals. Please come back and visit often. Feature Articles Can You Claim a Tax Deduction for Tips or Overtime Income? Businesses: Act Soon to Take Advantage of Clean Energy Tax Incentives Make Smart Choices With a Sudden Windfall Tax Tips 2026 Tax Law Changes for Individuals Heavy Tax Breaks for Heavy Business Vehicles More Taxpayers May Qualify for the Casualty Loss Deduction

January 2026: Upcoming Tax Due Dates

By Sarah Bolton • January 7, 2026
January 15 Employers: Deposit nonpayroll withheld income tax for December 2025 if the monthly deposit rule applies. Individuals: Pay the fourth installment of 2025 estimated taxes (Form 1040-ES) if not paying income tax through withholding or not paying sufficient income tax through withholding. February 2 Employers: File 2025 Form W-2 (Copy A) and transmittal Form W-3 with the Social Security Administration. Employers: File a 2025 return for federal unemployment taxes (Form 940) and pay any tax due if all the associated taxes weren’t deposited on time and in full. Employers: Report Social Security and Medicare taxes and income tax withholding for the fourth quarter of 2025 (Form 941) if all of the associated taxes due weren’t deposited on time and in full. Employers: Provide 2025 Form W-2 to employees. Businesses: Provide 2025 Form 1098, Form 1099-MISC (except for those with a February 18 deadline), Form 1099-NEC and Form W-2G to recipients. Individuals: File a 2025 income tax return (Form 1040 or Form 1040-SR) and pay the tax to avoid penalties for underpaying the January 15 installment of estimated taxes. February 10 Employers: File a 2025 return for federal unemployment taxes (Form 940) if all associated taxes due were deposited on time and in full. Employers: Report Social Security and Medicare taxes and income tax withholding for the fourth quarter of 2025 (Form 941) if all associated taxes due were deposited on time and in full. Individuals: Report January tip income of $20 or more to employers (Form 4070). 

More Taxpayers May Qualify for the Casualty Loss Deduction

By Sarah Bolton • January 7, 2026
Starting in 2026, personal casualty loss deductions will no longer be limited to federally declared disasters. Certain state-declared disasters will also be eligible. For a disaster to qualify, the governor (or D.C. mayor) and the U.S. Treasury Secretary must agree that the damage is severe enough to apply these rules. Now more taxpayers affected by natural disasters or by fires, floods or explosions, regardless of the cause, may qualify.  Note that taxpayers can still claim personal casualty losses not attributable to federally or state-declared disasters, but only to the extent of any personal casualty gains. Need guidance? Contact the office for help.