For decades, interest on personal auto loans was not federally deductible. Only mortgage interest, student loan interest, and certain investment interest qualified. The One Big Beautiful Bill Act (P.L. 119-21) changed that for tax years 2025 through 2028. You can now deduct up to $10,000 per year in interest paid on a qualifying personal-use vehicle loan. The deduction is below-the-line, claimed on the new Schedule 1-A, meaning it reduces taxable income but not AGI, and is available regardless of whether you itemize.
The eligibility rules are narrow. Most existing auto loans don’t qualify because they were originated before the cutoff date.
What qualifies
A loan qualifies if all of these are true:
- Originated after December 31, 2024. Loans originated before that date never qualify, even if you refinance later (refinances generally retain the original origination date for this rule, with limited exceptions).
- Used to purchase a qualifying vehicle. Eligible vehicle types: car, minivan, van, SUV, pickup truck, or motorcycle.
- Vehicle has a gross vehicle weight rating (GVWR) under 14,000 pounds. Most consumer vehicles fall well below this. Heavy commercial trucks don’t qualify.
- Vehicle underwent final assembly in the United States. You can verify this on the vehicle’s window sticker or by entering the VIN into the NHTSA VIN Decoder.
- You are the original user of the vehicle. Used vehicles purchased secondhand do not qualify, even if they meet all other requirements.
- The vehicle is for personal use. Vehicles used primarily for business get different treatment under existing depreciation and Section 179 rules.
What does not qualify
- Used vehicles (any prior owner disqualifies the loan)
- Leases (not loans)
- Foreign-assembled vehicles, even those sold by US dealers
- Loans that originated before January 1, 2025
- Vehicles over 14,000 pounds GVWR
- RVs, boats, ATVs, and motorhomes (not in the eligible vehicle list)
- Loans on business-use vehicles (handled under depreciation and Section 179, not this provision)
How the phaseout works
| Filing status | Phaseout begins | Maximum deduction |
|---|---|---|
| Single | $100,000 MAGI | $10,000 |
| Married filing jointly | $200,000 MAGI | $10,000 |
Above each threshold the deduction phases down. The phaseout slope is set by IRS regulation. High-income households may receive a reduced or zero deduction.
What’s the actual savings
The deduction reduces your taxable income, not your tax bill, so multiply by your marginal bracket to see actual savings.
A standard 72-month $40,000 auto loan at 7% APR pays approximately $2,600 in interest in year one, declining each year as the principal pays down. Total interest across all 72 months is roughly $9,100. The 2025–2028 deduction window covers only the first four tax years of a loan originated in 2025, so a 6-year loan would deduct interest paid in 2025, 2026, 2027, and 2028: roughly the first $8,100 of total interest, with the final two years’ interest (~$1,000) not deductible unless Congress extends the provision.
For a household at the 22% marginal bracket, the actual federal income tax savings on $8,100 of deductible interest is around $1,800.
For larger loans (luxury vehicles, larger trucks) the deduction can hit the $10,000 annual ceiling. For typical loans on a Toyota Corolla or Honda CR-V, you’ll be well under the cap and limited mainly by the actual interest paid.
How to claim it
Auto loan interest is claimed on the new Schedule 1-A, which flows into Form 1040, starting with the 2025 return (filed by April 15, 2026). You don’t need to itemize. You’ll need:
- The amount of interest paid in the tax year (your lender’s year-end statement; IRS Form 1098-style documentation)
- VIN to verify US final assembly
- Confirmation of the loan’s origination date (loan documents)
Keep these records for at least three years after filing in case of an audit.
What this is not
This is a federal income tax deduction. State income tax treatment is separate, and most states do not currently conform, so check your state’s revenue department.
It also does not change auto loan interest rates themselves, the lender’s APR disclosure rules, or any aspect of how the loan itself works. The benefit is purely tax-side.
Common mistakes
Buying a used vehicle and assuming the deduction applies. Used vehicles are categorically excluded; the original-user requirement is strict.
Buying a foreign-assembled vehicle. Many popular models are built outside the US. Verify final assembly via the VIN before purchase if the deduction is part of your decision.
Refinancing into a new loan and counting it as a 2025+ origination. The IRS treats most refinances as retaining the original origination date for purposes of this rule.
Counting business-use vehicles. A vehicle used more than 50% for business goes through different (often more favorable) depreciation rules. The OBBBA auto loan deduction is for personal-use vehicles only.
Forgetting the sunset. The deduction expires after tax year 2028 unless Congress extends it. A 7-year loan originated in 2025 will only qualify for the first 4 years of interest under current law.
Next action
If you’re considering buying a vehicle in 2026, factor the deduction into your math: confirm US final assembly via the NHTSA VIN decoder, choose a new (not used) qualifying vehicle, and document the loan origination date. Interest paid during 2026 is claimed on your 2026 return (filed by April 15, 2027) on the new OBBBA Schedule 1-A. Interest paid in 2025 (on a loan originated after January 1, 2025) is claimed on your 2025 return filed by April 15, 2026.