Navigating the New Auto Loan Interest Deduction: A Guide for 2025–2028

For years, a common question during tax appointments has been whether personal car loan interest is deductible. Historically, the answer was usually "no." However, proposed regulations following the One Big Beautiful Bill Act have shifted the landscape for tax years 2025 through 2028. If you purchased a new vehicle recently or are planning to, you may be eligible for significant tax relief on loans originated after December 31, 2024.

Who Qualifies for the Deduction?

This new provision is designed for individuals, certain trusts, and estates. Importantly, this is a below-the-line deduction. This means you do not need to itemize to claim it; it is available even if you take the standard deduction, directly reducing your taxable income.

However, high-income earners may see reduced benefits. The deduction begins to phase out for taxpayers with a modified Adjusted Gross Income (AGI) exceeding $150,000 (or $250,000 for married couples filing jointly).

Office desktop with accounting documents

Caps and Vehicle Requirements

The annual deduction is capped at $10,000 per tax return (married taxpayers filing separately can each claim up to $10,000). To qualify, the vehicle must meet specific criteria designed to support domestic manufacturing:

  • Condition: Must be a new passenger vehicle (cars, SUVs, trucks, minivans) under 14,000 lbs.

  • Assembly: Final assembly must occur in the United States.

  • Usage: You must anticipate using the vehicle for personal purposes more than 50% of the time.

To verify where your specific vehicle was assembled, you can use the NHTSA decoder here: Welcome to VIN Decoding : provided by vPIC.

The Fine Print: Loans and Documentation

Not all financing qualifies. The interest must come from a secured loan on the vehicle through an independent lender (like a bank or credit union). Loans from family members and interest paid on leased vehicles are not eligible. Lenders are expected to file the new Form 1098-VLI reporting this interest, though for 2025, a standard interest statement may be provided instead.

If you use your car for both business and personal reasons, we can help you calculate the proportional split to ensure you remain compliant while maximizing your write-offs. Navigating these new regulations can be tricky, so please reach out to Tax Lady 1040 for assistance with your specific situation.

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