For decades, interest on a personal car loan was not deductible on a federal tax return. That changed with the One Big Beautiful Bill Act (OBBBA), signed on July 4, 2025. For tax years 2025 through 2028, eligible taxpayers can deduct up to $10,000 per year of interest paid on a loan used to buy a qualifying new vehicle. The deduction is available whether you itemize or take the standard deduction, but it comes with strict rules about the vehicle, the loan, and your income. This guide walks through each requirement so you can tell whether your car payment might lower your tax bill.
*This article is for general information only and is not tax advice. Rules can change and individual situations differ, so confirm details with the IRS or a qualified tax professional.*
What the car loan interest deduction is
The car loan interest deduction is a temporary federal deduction for “qualified passenger vehicle loan interest.” It covers interest, not principal, paid during the tax year on a loan that meets specific conditions. The maximum deduction is $10,000 per return per year, and it is reduced for higher incomes.
Because it is a deduction claimed on the new Schedule 1-A rather than an itemized deduction, you do not need to give up the standard deduction to use it. That makes it relevant to many middle-income households that never itemize.
The deduction applies to tax years 2025, 2026, 2027, and 2028. Unless Congress extends it, interest paid in 2029 and later will not qualify.
Which loans qualify
To count, interest must be paid on a loan that meets all of these conditions:
- Originated after December 31, 2024. Loans taken out in 2024 or earlier do not qualify, even if you are still paying them.
- Used to purchase the vehicle. The loan must be for buying the car, not a general personal loan or a cash-out loan.
- Secured by a first lien on the vehicle. A typical auto loan from a bank, credit union, or dealer financing arm fits this description.
- For personal use. Vehicles used for business are not eligible under this provision; business vehicle interest follows separate business expense rules.
- The vehicle’s original use starts with you. In practice, that means a new vehicle, not a used one.
According to the IRS, if a qualifying loan is later refinanced, interest on the refinanced amount is generally still eligible, as long as the refinance does not exceed the original balance being paid off.
What does not qualify
- Leases. Lease payments are not loan interest and do not qualify.
- Used vehicles. Even a nearly new car does not qualify if someone else was the original user.
- Loans from related parties. Loans from family members or other related persons are generally excluded.
- Commercial or fleet vehicles. The deduction is meant for personal vehicles.
Which vehicles qualify
A qualified vehicle must be a car, minivan, van, SUV, pickup truck, or motorcycle with a gross vehicle weight rating under 14,000 pounds. It also must have undergone final assembly in the United States.
Final assembly location is not the same as brand. Some foreign brands assemble vehicles in U.S. plants, and some U.S. brands assemble certain models abroad. You can check final assembly in a few ways:
- The vehicle information label (window sticker) at the dealership, which lists the final assembly point.
- The vehicle identification number (VIN). The first character often indicates the country of manufacture, but the window sticker or a decoder is more reliable.
- The National Highway Traffic Safety Administration (NHTSA) VIN decoder, which the IRS points to for verifying assembly location.
You must report the vehicle’s VIN on your tax return for each year you claim the deduction, so keep it handy.
Income limits and the phase-out
The deduction phases out for higher earners based on modified adjusted gross income (MAGI):
| Filing status | Phase-out begins |
|---|---|
| Single, head of household, other | $100,000 MAGI |
| Married filing jointly | $200,000 MAGI |
The $10,000 maximum is reduced by $200 for every $1,000 (or part of $1,000) of MAGI above the threshold. At that rate, a single filer’s deduction is fully phased out at $150,000 MAGI, and a joint filer’s at $250,000.
Phase-out example
Consider a single filer with $110,000 MAGI who paid $3,000 of qualifying interest. MAGI is $10,000 over the threshold, so the maximum is reduced by 10 × $200 = $2,000, leaving a cap of $8,000. Because $3,000 of actual interest is below the reduced cap, the full $3,000 is deductible. The phase-out mainly matters when your interest is large or your income is well above the threshold.
How much the deduction is worth
A deduction reduces taxable income, not tax owed dollar for dollar. Its value depends on your marginal tax bracket. If you are in the 22% bracket and deduct $2,500 of interest, your federal tax drops by about $550. In the 12% bracket, the same deduction saves about $300.
It also helps to be realistic about how much interest you pay. Loan interest is highest in the early years of the loan and falls as the balance drops. A borrower with a modest loan at a moderate rate might pay a few thousand dollars of interest in year one, far below the $10,000 cap. The full $10,000 is mostly relevant to large loans at high rates.
The deduction should not be the main reason to buy a car or to choose financing over cash. Paying interest to get a partial tax deduction still costs you money overall. If you would otherwise pay cash, compare the after-tax cost of the loan with what your cash would earn elsewhere.
How to claim the deduction
Starting with 2025 returns, the IRS added Schedule 1-A to Form 1040 for several new OBBBA deductions, including no tax on tips, no tax on overtime, the senior deduction, and car loan interest. Here is the general process:
- Confirm eligibility. Check the loan date, the lien, new-vehicle status, U.S. final assembly, and weight rating.
- Gather the interest amount. Lenders that receive $600 or more of qualifying interest from an individual must report it to the IRS and send you a statement. Your year-end loan statement also shows interest paid.
- Record the VIN. You must include it on your return.
- Complete Schedule 1-A. Enter the interest, apply the phase-out if your MAGI is above the threshold, and carry the result to Form 1040.
- Keep records. Save the purchase contract, loan agreement, window sticker, and annual interest statements for at least three years after filing.
Most tax software has been updated to ask about vehicle loans, but you should still double-check the inputs, especially the purchase date and VIN.
Planning considerations
Timing a purchase
Because the deduction only runs through 2028, interest paid in 2029 and later will not qualify unless the law changes. A loan taken out in late 2028 would generate very little deductible interest. If you are already planning to buy a new U.S.-assembled vehicle with financing, buying sooner allows more years of deductible interest, but that is a minor factor next to price, rate, and need.
Choosing between models
If you are deciding between similar vehicles and plan to finance, final assembly location may now be a small tiebreaker. Check each specific vehicle’s window sticker, because assembly locations can differ by model, trim, and even production run.
Paying off early
Paying off your loan early still saves more in interest than the deduction gives back. Every dollar of interest you avoid saves a full dollar, while a deducted dollar of interest saves only your marginal tax rate.
Married couples
The cap is $10,000 per return. Married couples filing jointly share one $10,000 cap and one phase-out threshold of $200,000, even if they financed two qualifying vehicles.
Common mistakes to avoid
- Assuming any car loan counts. Used cars, leases, and older loans do not.
- Guessing the assembly location. Brand alone tells you nothing; check the sticker or VIN decoder.
- Deducting principal. Only interest counts.
- Forgetting the VIN. Leaving it off can lead to the deduction being disallowed.
- Ignoring the phase-out. Higher earners may get a reduced deduction or none at all.
Frequently Asked Questions
Do I need to itemize to claim the car loan interest deduction?
No. The deduction is available to both itemizers and those who take the standard deduction. It is claimed on Schedule 1-A.
Does a used car qualify?
No. The original use of the vehicle must begin with you, which effectively limits the deduction to new vehicles.
Can I deduct interest on a leased car?
No. Lease payments are not loan interest and are specifically excluded.
What if I refinance my qualifying car loan?
According to IRS guidance, interest on a refinanced qualifying loan generally remains eligible, as long as the new loan does not exceed the original loan balance being refinanced.
How do I know whether my car was assembled in the United States?
Check the final assembly point on the vehicle’s window sticker, or enter your VIN into the NHTSA VIN decoder.
Is there a limit for married couples with two cars?
Yes. The $10,000 cap applies per return, so a married couple filing jointly has one $10,000 limit in total.
When does the deduction end?
It applies to tax years 2025 through 2028. Interest paid after 2028 will not qualify unless Congress extends the provision.
The bottom line
The car loan interest deduction can trim the tax bill for buyers of new, U.S.-assembled vehicles financed after 2024, especially middle-income households who do not itemize. The value is real but modest for most borrowers, since it saves only your marginal rate on interest you actually pay. Confirm the vehicle and loan qualify, keep your VIN and interest statements, and let the deduction be a bonus rather than the reason you buy.
This article is for general informational purposes only and is not legal, medical, tax, or financial advice. Rules vary by state and change over time; confirm details with the relevant agency or a licensed professional.
