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New Auto Loan Interest Deduction: Eligibility & Rules for 2025

If you have shopped for a vehicle recently, you know that financing costs have become a significant burden on the household budget. However, a new provision in the tax code aims to soften that blow for many buyers. Under proposed regulations from the One Big Beautiful Bill Act, taxpayers may soon be able to deduct interest paid on loans for qualified passenger vehicles.

Effective for loans originated after December 31, 2024, this temporary relief measure is designed to run through the 2028 tax year. It specifically targets individuals purchasing new, American-assembled vehicles. As your advisors, we want to walk you through the specifics so you can determine if your next purchase qualifies.

Who Qualifies for the Deduction?

Unlike many deductions that are restricted to business owners, this benefit is available to individual claimants, certain trusts, estates, and disregarded entities. Perhaps the most distinct feature of this new rule is how it interacts with your filing status.

This is a below-the-line deduction. This means it reduces your taxable income regardless of whether you itemize deductions or take the standard deduction. If eligible, you will claim this on a new schedule attached to your Form 1040, which will require the vehicle’s VIN.

Calculator and tax forms

The Financial Guardrails: Caps and Income Limits

While this deduction offers welcome relief, it is not unlimited. The IRS has established specific ceilings to target the benefit:

  • Annual Cap: You can deduct up to $10,000 in interest per tax return annually. If you are married but filing separately, each spouse is capped at $10,000.

  • Income Phaseouts: High-income earners may see reduced benefits. The deduction begins to phase out when Modified Adjusted Gross Income (MAGI) exceeds $150,000 for single filers or $250,000 for those married filing jointly.

Vehicle Eligibility: The "Made in America" Rule

Not every car on the lot will trigger this tax break. The legislation aligns with broader goals to support domestic manufacturing. To qualify, the passenger vehicle must be new, have a gross vehicle weight rating under 14,000 pounds, and be assembled in the United States. This includes cars, SUVs, minivans, and pickup trucks.

Before signing paperwork, verify the assembly location. You can use the Department of Transportation's decoder tool to check the specific VIN:

Welcome to VIN Decoding : provided by vPIC

Personal vs. Business Use

To secure the deduction, you must anticipate using the vehicle for personal purposes more than 50% of the time when you buy it. The good news is that you are not required to adjust this estimate in future years, even if your personal usage drops below that threshold later.

For clients who use their truck or car for both business and family needs, the rules require some math. You can still claim a business expense deduction for the business-use portion of the interest, but that amount will proportionally reduce what you can claim on the new Schedule 1-A. You cannot double-dip.

People discussing financial documents

What Expenses and Loans Qualify?

The deduction covers interest on the financed purchase price, as well as interest linked to sales taxes, vehicle fees, and service plans. However, the source of the loan matters significantly.

  • Eligible Lenders: The loan must be secured by the vehicle and originate from an independent lender, such as a bank or credit union.

  • Ineligible Loans: Interest on loans from family members does not qualify. Furthermore, interest paid on leased vehicles is strictly excluded from this deduction.

  • Refinancing: If you refinance, interest is only deductible on the outstanding balance at the time of the refinance.

Documentation Required

Lenders are preparing for these changes as well. They are required to file the new Form 1098-VLI if they receive at least $600 in interest from you. For the 2025 tax year specifically, the IRS is permitting lenders to provide a simple statement of interest paid instead of the formal form.

Navigating new regulations can be complex, especially when phaseouts and usage percentages are involved. If you are planning a vehicle purchase this year and want to ensure you maximize this opportunity, please reach out to our office for assistance.

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