Is car loan interest tax-deductible? The complete guide
Updated for the 2026 tax year · Plain-English explainer
In short
Yes — since 2025, US taxpayers can deduct up to $10,000 per year of car loan interest under OBBBA §70203. The vehicle must be new, finally assembled in the USA, for personal use, with a loan originated after December 31, 2024. It is an above-the-line deduction (no itemizing needed) and phases out above $100k MAGI single / $200k joint.
What is the car loan interest deduction?
The One Big Beautiful Bill Act (OBBBA), signed in 2025, created a new federal tax deduction for auto loan interest — section 70203 of the Act. For tax years 2025 through 2028, individuals can deduct up to $10,000 per year of interest paid on a loan used to buy a qualifying new vehicle.
Before this law, car loan interest was generally not deductible for personal vehicles (unlike mortgage interest). This is the first broad federal deduction for personal auto loan interest in modern US tax history — which is why so many car buyers are asking about it now.
The 4 rules, explained
The law is strict. All four conditions must be true at the same time:
1.The vehicle is NEW
1–4Original use must begin with you — used or pre-owned vehicles do not qualify.
2.Final assembly in the USA
1–4The vehicle's final assembly point must be in the United States. Your VIN's plant country tells you this.
3.Personal use
1–4The vehicle must be for personal use — not business, fleet, or for-hire use.
4.Loan originated after 2024-12-31
1–4The auto loan must have been originated after December 31, 2024.
How much can you actually save?
Two numbers matter: your deduction and your savings. The deduction is capped at $10,000 of interest paid per year. Your savings equal the deduction times your marginal tax rate.
Example: you paid $3,100 in interest in year one and you're in the 22% bracket. Your deduction is $3,100 and your tax savings are about $682. A $10,000 deduction in the 22% bracket saves $2,200 — not $10,000.
Run your own numbers with our free calculator, which uses a real amortization schedule to estimate your first-year interest.
Above-the-line: no itemizing needed
Most people take the standard deduction, which made older itemized-only deductions useless to them. This deduction is different: it's 'above the line,' meaning it reduces your adjusted gross income directly. You can claim it on top of the standard deduction.
Income phase-outs
The deduction phases out for higher earners. The phase-out begins at $100,000 of modified adjusted gross income (MAGI) for single filers, married filing separately, and heads of household, and at $200,000 for married couples filing jointly.
If your MAGI is near or above the threshold, don't guess — the exact phase-out math should be confirmed with a CPA or tax software.
How to claim it on your return
1. Verify your vehicle qualifies — run your VIN through our free checker and keep the result.
2. Get your interest-paid figure — your lender reports it; check your year-end loan statement.
3. Enter it on your tax return in the section for this deduction (tax software like TurboTax, FreeTaxUSA, or eFile.com will walk you through it).
4. Keep records — your loan agreement, VIN decode, and interest statements — in case of questions later.
Common misconceptions
“My car was made by an American brand, so it qualifies.” — Not necessarily. The rule is about where your specific vehicle was finally assembled, not the brand's headquarters. Many 'American' models are assembled in Mexico or Canada. Check your VIN.
“Leases qualify too.” — No. The deduction is for interest on a loan used to purchase the vehicle. Lease payments are not loan interest.
“I can deduct the whole monthly payment.” — No. Only the interest portion is deductible, not principal.
Frequently asked questions
Is car loan interest tax-deductible?
Yes, since 2025. Under OBBBA §70203 you can deduct up to $10,000 per year of interest paid on a qualifying auto loan: the vehicle must be new, finally assembled in the USA, for personal use, and the loan must have originated after December 31, 2024.
Do I have to itemize deductions to claim it?
No. It is an above-the-line deduction, so you can claim it whether you take the standard deduction or itemize.
Does the deduction apply to used cars?
No. Only new vehicles — where the original use begins with the taxpayer — qualify. Used and pre-owned vehicles are excluded.
What is the MAGI phase-out?
The deduction phases out for higher incomes: it begins to phase out at $100,000 of modified adjusted gross income for single filers ($200,000 for married filing jointly). If your MAGI is above the threshold, confirm the exact reduction with a CPA.
Does a $10,000 deduction mean I get $10,000 back?
No. A deduction reduces your taxable income; your savings equal the deduction multiplied by your marginal tax rate. A $10,000 deduction at a 22% rate saves $2,200 in tax.
How do I prove my car was assembled in the USA?
Your VIN encodes the plant country. Use our free VIN checker, which decodes it via the official NHTSA database, or check the label on the driver's door jamb.
Sources
- One Big Beautiful Bill Act, §70203 (new-vehicle auto loan interest deduction) — IRS: One Big Beautiful Bill provisions
- VIN decoding data — NHTSA vPIC vehicle database
Tax law summaries are simplified. Always verify against IRS guidance or a CPA.
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Found out you qualify? These tax-filing services can help you claim the deduction correctly on your return.
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Disclaimer: Estimates only — not tax advice. Tax rules are complex and change. Confirm your situation with a qualified CPA or tax professional before filing.