New Tax Relief: Deducting Auto Loan Interest on Your 2025 Return

For decades, tax professionals have had to deliver the same news to clients: interest on personal consumer debt, like car loans, is generally not deductible. However, thanks to the One Big Beautiful Bill Act, that rule has shifted for specific taxpayers. As we head into the 2025 filing season, this new provision offers a rare opportunity to lower your taxable income based on vehicle financing costs.

This deduction applies to loans originated after December 31, 2024, and is currently set to run through the 2028 tax year. If you purchased a new vehicle last year, or are planning to buy one soon, here is what you need to know to ensure you capture this benefit.

The Core Eligibility Rules

This isn't a blanket deduction for every car buyer. The legislation targets specific purchasing behaviors—namely, buying new and buying American. To qualify, the loan must be secured by a lien on a new passenger vehicle (cars, SUVs, trucks, minivans) that was assembled in the United States.

Accountant reviewing tax documents

Additionally, the vehicle must have a gross weight rating under 14,000 pounds and be intended for personal use at least 50% of the time. You can verify the assembly location of your specific vehicle using its VIN at the NHTSA website: Welcome to VIN Decoding: provided by vPIC.

Financial Limits and Phaseouts

The IRS has placed specific caps on this benefit to target middle-income earners:

  • Deduction Cap: You can deduct up to $10,000 in interest annually per tax return. (Married couples filing separately are capped at $10,000 each).

  • Income Limits: The benefit begins to phase out once your Modified Adjusted Gross Income (MAGI) crosses $150,000 for single filers or $250,000 for married couples filing jointly.

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How to Claim It (Form 1040)

One of the most distinct features of this new rule is that it is a "below-the-line" deduction. This is significant because it is available to you even if you take the standard deduction. You do not need to itemize to see the tax savings.

You will claim this on a new schedule attached to your Form 1040, where you must report the Vehicle Identification Number (VIN). For those who use their vehicle for both business and personal reasons, the interest must be split proportionally. The business portion goes to your business expense schedule, and the personal portion goes to this new deduction schedule. Professional guidance is highly recommended here to ensure the math holds up to IRS scrutiny.

What Does Not Qualify?

It is just as important to understand what is excluded to avoid errors on your return:

  • Leases: Interest paid on leased vehicles is not eligible.

  • Used Cars: The vehicle must be new at the time of purchase.

  • Family Loans: The loan must originate from an independent lender (bank, credit union, etc.). Informal loans between family members do not qualify.

Documentation for Filing

Lenders are now required to file Form 1098-VLI if you paid at least $600 in interest. For the 2025 tax year, lenders may provide a substitute statement rather than the official form. If you believe you qualify, ensure you have this document ready before your tax appointment.

Navigating new tax legislation requires precision. If you bought a US-made vehicle recently and want to see if you meet the income and usage requirements, please contact our office. We can help you determine exactly how much interest you can deduct this season.

Let’s Start a Conversation.
You can count on us for professional guidance along with timely, and reliable tax services. If you’re ready to get started, or just want to start a conversation, then click below.
Learn More
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