What Changed Under the One Big Beautiful Bill
The One Big Beautiful Bill Act (H.R.1), signed July 4, 2025, added a new federal income tax deduction for car loan interest to Schedule 1-A — the same supplemental form that now carries the no-tax-on-tips and no-tax-on-overtime deductions.
For tax years 2025 through 2028, taxpayers who financed the purchase of a qualifying U.S.-assembled vehicle can deduct up to $10,000 per year in car loan interest. This is an above-the-line deduction — it reduces your adjusted gross income whether you take the standard deduction or itemize. No itemizing required.
For buyers of American-made vehicles, it converts what was previously a non-deductible consumer expense into a meaningful annual write-off for the life of the provision.
For the companion no-tax-on-overtime deduction ($12,500/year for FLSA overtime workers) and the full picture of OBBBA individual tax changes, see One Big Beautiful Bill: Individual Tax Changes for 2026.
Does Your Vehicle Qualify?
Not every auto loan qualifies. The IRS requires all four of the following conditions:
1. New vehicle. The car must be new — meaning it has never been registered to another retail buyer before you purchased it. Used vehicles, certified pre-owned vehicles, and previously titled cars don't qualify, even if they are U.S.-assembled.
2. U.S. final assembly. The vehicle's final assembly must have taken place in the United States. This is not the same as a U.S. brand. Many vehicles sold by American automakers are assembled in Mexico or Canada — those don't qualify. The window sticker (Monroney label) on your car states the country of final assembly. You can also verify using the NHTSA VIN decoder at nhtsa.gov.
3. Purchase date after December 31, 2024. Vehicles purchased before January 1, 2025 don't qualify for the deduction, even if you're still paying interest in 2025 or later. The purchase date, not the interest payment date, determines eligibility.
4. Gross Vehicle Weight Rating under 14,000 lbs. Standard passenger cars, SUVs, crossovers, and most light-duty pickups are well below this threshold. Heavy-duty commercial vehicles (Class 5 and above) are excluded.
Leased vehicles do not qualify. Lease payments are rent, not interest. Only buyers who hold legal title and pay interest to a lender are eligible for this deduction. If you lease a U.S.-assembled vehicle, the Schedule 1-A car loan deduction does not apply.
How Much Can You Deduct?
The deduction is capped at $10,000 per year in qualifying interest paid — not principal, not total monthly payments, but interest only. For most auto loans, interest is highest in the early years of repayment when your outstanding balance is largest.
To claim the deduction, you need documentation. Your lender is required to issue Form 1098-VLI if you paid at least $600 in qualifying interest during the tax year. Beginning with the 2026 tax year, lenders should issue this form alongside other year-end tax statements. If you paid less than $600 in qualifying interest, you may not receive the form — but you can still calculate the deduction from your loan statements.
A practical illustration: on a $42,000 auto loan at 7% interest over 60 months, interest paid in year one is approximately $2,700. That full $2,700 is deductible if your income is below the phase-out threshold. Buyers financing more expensive vehicles at higher rates will approach the $10,000 cap more quickly — but the cap still protects against an unlimited deduction.
Income Phase-Out: Who Gets the Full Deduction
The car loan interest deduction phases out at lower income thresholds than the overtime and tips deductions. The phase-out is linear between the start and end thresholds:
| Filing Status | Full deduction (below) | Phase-out begins | Fully phased out (above) |
|---|---|---|---|
| Single / Head of Household | $100,000 MAGI | $100,000 | $150,000 |
| Married Filing Jointly | $200,000 MAGI | $200,000 | $250,000 |
| Married Filing Separately | $100,000 MAGI | $100,000 | $150,000 |
Compare this to the no-tax-on-overtime deduction (phase-out at $150,000 single / $300,000 MFJ) and the no-tax-on-tips deduction (same thresholds). The car loan provision is specifically targeted at middle-income buyers of domestically made vehicles. Higher earners receive a reduced deduction or none at all.
If your MAGI is between the phase-out thresholds, your deduction is reduced proportionally. For example, a single filer with $125,000 MAGI — midway through the $50,000 phase-out range — would receive half the deduction, or $5,000 maximum.
How to Claim It on Schedule 1-A
The IRS created Schedule 1-A (Form 1040) specifically for OBBBA deductions. It groups tips, overtime, car loan interest, and the senior deduction on one supplemental form, all flowing to Schedule 1 and then to Form 1040.
Steps to claim the car loan interest deduction:
- Confirm your vehicle qualifies. Verify U.S. final assembly using your VIN at nhtsa.gov/vehicle-safety/vin-decoder and confirm the purchase date was on or after January 1, 2025.
- Gather your Form 1098-VLI. Your lender issues this form showing qualifying interest paid. If you didn't receive one and paid more than $600 in interest, contact your lender.
- Note your VIN. You'll need it on Schedule 1-A to confirm U.S. assembly.
- Calculate your qualifying interest — interest only, capped at $10,000.
- Complete Schedule 1-A and carry the deduction to Schedule 1, which flows to Form 1040.
The deduction reduces your AGI above the line, which can also reduce exposure to other income-based phase-outs on your return.
Business and Mixed-Use Vehicles
If you use the vehicle for business, the car loan interest deduction on Schedule 1-A is for personal use only. Business-vehicle deductions — depreciation, Section 179, bonus depreciation, or the standard mileage rate — are handled through separate provisions. For a full breakdown of how business vehicle deductions work, see the Business Vehicle Deduction Guide for 2026.
If a vehicle is used partly for business and partly personally, how to allocate the interest between the two deduction paths is a tax professional question — the rules are not straightforward and the two approaches don't stack.
State Taxes: The Federal Deduction Doesn't Extend Automatically
Like the tip and overtime deductions, the OBBBA car loan interest deduction is federal law only. Most states have not passed conforming legislation adopting this provision.
If you live in a state with income tax, you'll likely still owe state income tax on the full amount of income — the Schedule 1-A deduction typically doesn't carry to your state return unless your state has specifically adopted this OBBBA provision. Check your state's department of revenue for current guidance.
Plan Ahead for the Remaining Tax Years
The deduction covers 2025, 2026, 2027, and 2028. Practical steps for buyers who may benefit:
- Request your Form 1098-VLI now if you haven't received it. Don't wait until April — contact your lender in January if it doesn't arrive by mid-February.
- Keep a record of your VIN. It appears on the dashboard, the driver-side door jamb, and on your registration. Store it with your tax records.
- Monitor your MAGI. If your income is near the $100,000 (single) or $200,000 (MFJ) threshold, a year-end income adjustment — such as a 401(k) contribution or a Section 199A deduction — may help preserve the full deduction. For a mid-year planning framework, see Mid-Year Tax Planning Checklist 2026.
- Recalculate estimated payments if applicable. The deduction reduces your federal income tax liability; quarterly estimated payments can be adjusted accordingly.
For the other Schedule 1-A deductions: see the No-Tax-on-Tips guide and the OBBBA individual tax changes overview for the full picture. For the business-side OBBBA provisions — 100% bonus depreciation, QBI, and Section 179 — see One Big Beautiful Bill: Small Business Tax Changes.
This content is for educational purposes only and does not constitute tax or legal advice. Tax rules change frequently and individual circumstances vary. Consult a licensed CPA or enrolled agent for guidance specific to your 2025 and 2026 returns.
