What changed in 2025
Before 2025, the tax code was blunt about this: interest on a loan for a personal-use vehicle was nondeductible personal interest, full stop. That had been true since the Tax Reform Act of 1986 phased out the old consumer-interest deduction. Only genuine business use (or, indirectly, a home equity loan used to buy the car before 2018) ever got around it.
The One, Big, Beautiful Bill Act, signed on July 4, 2025, carved out a temporary exception the IRS calls "No Tax on Car Loan Interest." For tax years 2025 through 2028, you can deduct up to $10,000 of interest paid on a qualifying new-vehicle loan each year.
Two design choices make it unusually accessible. First, it is an above-the-line style deduction: per IRS guidance, it is "available for both itemizing and non-itemizing taxpayers," so the roughly nine in ten filers who take the standard deduction still get it. Second, the cap is per return and per year, not per vehicle, so interest from two qualifying loans can stack up to the same annual limit.
The catch is that Congress wrote it narrowly on purpose. It is as much industrial policy as tax relief: the vehicle must be new and must have undergone final assembly in the United States. The sections below walk through exactly who makes the cut.
Eligibility checklist: all boxes must be ticked
Every one of these conditions has to be true. Miss any single one and the interest is back to being nondeductible personal interest.
- The vehicle is new. Its "original use" must begin with you: you are the first owner. Used and certified pre-owned vehicles do not qualify.
- It is for personal use. Cars, minivans, vans, SUVs, pickup trucks, and motorcycles all count, as long as the gross vehicle weight rating is under 14,000 pounds.
- Final assembly happened in the United States. This follows the plant where the vehicle was assembled, not the badge on the hood. Check the vehicle information label on the window sticker or look up the VIN; many foreign-brand models built in US plants qualify, and some American-brand models built abroad do not.
- The loan was originated after December 31, 2024. A loan you took out in 2024 or earlier never qualifies, even for interest paid in 2025.
- The loan is secured by a lien on the vehicle. A standard auto loan passes; an unsecured personal loan or a credit card balance used to buy the car does not.
- The loan funded the purchase of that vehicle. Cash-out borrowing against a car you already own does not count. A refinance of a qualifying loan generally keeps the deduction, but only up to the refinanced balance.
- The lender is not a close relative. Loans from certain related parties are excluded.
- Your income is under the phase-out ceiling. The deduction starts shrinking above $100,000 of modified AGI ($200,000 joint) and is gone at $150,000 ($250,000 joint).
Who qualifies vs who does not
The same purchase can land on either side of the line depending on how it was financed and where the vehicle was built. Here is how common situations shake out.
| Situation | Deductible? | Why |
|---|---|---|
| New US-assembled SUV, dealer financing, loan signed in 2025 | Yes | New personal-use vehicle, US final assembly, post-2024 secured loan |
| New US-assembled motorcycle under 14,000 lbs GVWR | Yes | Motorcycles are explicitly included |
| Refinance in 2026 of a qualifying 2025 loan | Yes | Refinances keep eligibility up to the refinanced balance |
| Used or certified pre-owned car, any loan | No | Original use must begin with you |
| New car assembled outside the United States | No | Fails the final-assembly test regardless of brand |
| Leased vehicle | No | Lease payments are not loan interest |
| Loan originated in 2024 or earlier | No | Loan must be originated after December 31, 2024 |
| Unsecured personal loan used to buy a car | No | Loan must be secured by a lien on the vehicle |
| Vehicle bought for business or fleet use | No | Personal use only; business interest follows separate rules |
| RV or trailer over 14,000 lbs GVWR | No | Exceeds the weight limit |
The income phase-out
The deduction is aimed at middle-income buyers, and the phase-out enforces that. Once your modified adjusted gross income (MAGI) passes $100,000 for single filers or $200,000 for married filing jointly, the maximum deduction drops by $200 for every $1,000 of MAGI above the threshold.
Because the cap is $10,000, fifty of those $1,000 steps erase it completely: the deduction hits zero at $150,000 MAGI for single filers and $250,000 for joint filers.
A quick example: a single filer with $120,000 of MAGI is $20,000 over the threshold. That trims the cap by $4,000, leaving up to $6,000 of interest deductible. Since a typical car loan generates far less than $6,000 of interest in a year, many filers in the early phase-out range still deduct every dollar of interest they actually paid.
| MAGI | Reduction | Remaining cap |
|---|---|---|
| $100,000 | $0 | $10,000 |
| $110,000 | $2,000 | $8,000 |
| $120,000 | $4,000 | $6,000 |
| $135,000 | $7,000 | $3,000 |
| $150,000 and above | $10,000 | $0 |
Note that the phase-out runs on MAGI, not taxable income, so pre-tax 401(k) contributions and the standard deduction do not help you get under the threshold.
Worked example: a $40,000 loan
Say you finance $40,000 on a new US-assembled SUV in early 2026 at 7% APR over 60 months. The monthly payment comes to about $792, and standard amortization means the interest is front-loaded: you pay roughly $2,581 of interest in the first year alone, out of $7,523 over the life of the loan.
That first-year $2,581 is comfortably under the $10,000 cap, so if you qualify, all of it comes off your income. For a filer in the 22% bracket, that is about $568 of federal tax saved in year one: real money, though nowhere near "no tax on car loan interest" hype-level money.
| Loan year | Interest paid | Tax saved at 22% |
|---|---|---|
| Year 1 | $2,581 | $568 |
| Year 2 | $2,080 | $458 |
| Year 3 | $1,543 | $340 |
| Year 4 | $968 | $213 |
| Year 5 (deduction expired) | $351 | $0 |
Two things jump out. First, the interest shrinks every year as the balance falls, so the deduction is worth the most early on. Second, the law currently sunsets after 2028: on a 60-month loan opened in 2026, the final year of interest gets no deduction. Across the four covered years this borrower deducts about $7,172 of interest and saves roughly $1,578 in federal tax. To see the same year-by-year interest split for your own loan amount and rate, run it through our amortization calculator.
One trap to avoid: do not let the deduction talk you into a bigger loan or a longer term. Spending $1,000 of interest to save $220 of tax is still $780 out of your pocket. If you are weighing two offers, compare their total costs side by side with the loan comparison calculator first, then treat the deduction as a bonus on the cheaper loan.
How to claim it (and the VIN requirement)
You claim the deduction on your federal return for each year you paid qualifying interest, starting with the 2025 return filed in early 2026. It lives on Schedule 1-A, the new form for the OBBBA deductions, and reduces your income whether you take the standard deduction or itemize.
There is one paperwork requirement with teeth: per IRS guidance, you must report the Vehicle Identification Number (VIN) of the qualifying vehicle on your return for every year you claim the deduction. No VIN, no deduction.
Lenders are required to report the interest you paid to you and to the IRS. For 2025, the IRS granted transition relief, so instead of a formal information return your lender may have provided the figure through an online account, a regular statement, or a year-end summary. Keep your loan statements and the window-sticker or VIN-lookup evidence of US final assembly with your tax records.
Because the deduction reduces the income your brackets apply to, its dollar value depends on your marginal rate. You can check what bracket your income lands in, and what a deduction is worth to you, with the federal income tax calculator.
Business use is a different regime entirely
None of the above applies to vehicles used for business, and that is not a loophole being closed: business vehicles were never covered by the personal-interest ban in the first place.
If you are self-employed and use the actual-expense method, the business-use share of your car loan interest has long been deductible on Schedule C, along with depreciation, fuel, insurance, and maintenance. That deduction has no new-vehicle requirement, no US-assembly test, no income phase-out, and no 2028 sunset. If you use the standard mileage rate instead, the rate already bakes in vehicle costs, though self-employed filers can still deduct the business share of loan interest on top of it.
W-2 employees get neither: unreimbursed employee vehicle expenses have been nondeductible since 2018. And a vehicle bought for a business fleet cannot double-dip into the new personal deduction, which is limited to personal-use vehicles.
Mixed use follows the split: a self-employed person who drives 60% for business deducts 60% of the interest as a business expense, and only the personal 40% could even theoretically point at the new rule, subject to all its requirements.
What about state taxes?
The new deduction is federal. Whether it lowers your state income tax depends on how your state links its tax code to the federal one, and most states have not rushed to copy it.
States that start their calculation from federal adjusted gross income only pick up the deduction if their "conformity" date includes the 2025 law and they have not decoupled from this provision; several states routinely decouple from temporary federal breaks. States with their own independent income tax systems, and states with no income tax at all, are unaffected either way.
The practical advice: claim it federally, and check your state return instructions (or ask your preparer) before assuming a state-level benefit. For most filers the state impact is a small fraction of the federal one, since state rates are much lower than federal marginal rates.