The One Big Beautiful Bill Act brought in a new deduction for car loan interest that really shakes up how folks might think about financing a car. Now, you can deduct up to $10,000 per year in interest paid on loans for new, made-in-America vehicles bought for personal use—if you take out the loan after December 31, 2024, and before January 1, 2029. It’s an above-the-line adjustment, so you don’t have to itemize to get the benefit, which makes things easier for most people, honestly.

It’s important to note that there are hoops that you must jump through in order to take advantage of this auto loan interest deduction. Eligibility and vehicle requirements matter a lot here. You’ll need to pay attention to where your car was assembled, whether your loan qualifies, and even your income. Lenders have their own reporting requirements, too, so you’ll want to keep your paperwork straight come tax time.

If you’re unsure whether this new car loan interest deduction applies to you, or how to document it correctly, clarity upfront matters. The rules under the OBBBA are specific, and small details around income limits, vehicle eligibility, vehicle final assembly and lender reporting can make a big difference in whether the deduction actually holds up.

At My Personal Tax CPA, we help individuals and families in Arlington, VA understand how changes like this fit into their broader tax picture, not just in theory, but on their actual return. Whether you’re considering a vehicle purchase or already have a qualifying loan, we can walk through how this deduction may impact your taxes and what to keep in mind before filing.

Overview of Car Loan Interest Deduction Under the OBBBA

The OBBBA sets up a temporary deduction that lets you write off up to $10,000 per year in car loan interest for qualifying vehicles, whether you itemize or not. It’s only around through the 2028 tax year, so there’s a bit of a countdown to this tax benefit.

Key Provisions of the One Big Beautiful Bill Act

The No Tax on Car Loan Interest provision creates an above-the-line deduction for interest on certain vehicle loans. That’s handy, since you don’t have to itemize, and pretty much anyone who qualifies can use it.

However, it’s only for loans started after December 31, 2024, and only for new vehicles whose final assembly took place in the U.S. (Sorry, business vehicles don’t count.)

The cap is $10,000 per taxpayer each year. Income phase-outs start at $100,000 for single filers and $200,000 for those married filing jointly.

Purpose and Scope of the Deduction

The idea here is to give Americans buying U.S.-built cars a break and, let’s be honest, help out the domestic auto industry. You get to reduce your taxable income dollar-for-dollar for the interest you pay on a qualifying loan.

You’ll need to include the vehicle identification number (VIN) on your return. The lender will send you a Form 1098 showing how much interest you paid, very similar in theory to a mortgage interest form.

Only interest on loans for new, personal-use vehicles assembled in the U.S. will count towards this deduction. Used cars, business vehicles, or anything built outside the States? This deduction does not apply.

Tax Years 2025 Through 2028

The deduction is available for tax years 2025 through 2028, so you’ve got a four-year window. The loan has to start after December 31, 2024, and you can only deduct the vehicle loan interest paid during those years.

If you buy a qualifying car in 2025, you can keep deducting the interest through 2028. After that, unless Congress changes something, the deduction no longer applies.

Eligibility Requirements for Taxpayers

This deduction is only for individuals under certain income limits, and your filing status matters. The phase-out starts at specific income levels and disappears completely if you make too much.

Modified Adjusted Gross Income Limits

Your modified adjusted gross income (MAGI) tells you if you can take the deduction. The phaseout kicks in at $100,000 for singles and $200,000 for married folks filing jointly.

Once you hit $150,000 as a single filer or $300,000 as a joint filer, the deduction is gone. These numbers are based on the year you paid the interest, not when you bought the car.

Heads of household use the same numbers as singles. Married filing separately? The limits are lower, which may be disappointing for many taxpayers.

Income Phaseout Calculations

The deduction shrinks as your income climbs within the phase-out range. If you’re a single filer making between $100,000 and $150,000, the deduction drops in proportion to your income in that $50,000 span.

For married couples filing jointly, the phase-out stretches from $200,000 to $300,000. You might still get a partial deduction if you’re in that range.

But, the max deduction is $10,000 per year, and you can’t deduct more than you actually paid in interest.

Filing Status and Deduction Availability

You can claim this whether you itemize or take the standard deduction—pretty unusual for a consumer interest deduction.

On a joint return, both spouses could claim for their own qualifying cars, but the $10,000 cap is per taxpayer. Married filing separately? The income limits are tighter, so it’s harder to qualify.

Qualified Passenger Vehicle Criteria

The car has to be new, built in the U.S., and meet certain weight limits. This means it basically has to be a standard American passenger vehicle for personal use.

New Vehicle Requirement

Your vehicle must be new for the OBBBA car loan interest deduction. Used or pre-owned cars don’t count, no matter how nice they look.

The purchase and loan must happen after December 31, 2024. If you bought or financed in 2024 or earlier, even if it was new then, you’re out of luck here.

This is for vehicles in their first sale to an end user. This means that demo cars or anything previously titled don’t make the cut.

Final Assembly in the United States

Your car’s final assembly has to be in the U.S. That’s a big part of the rule. This deduction is meant to support American jobs.

You can check the assembly location using your VIN or the manufacturer’s info. VINs starting with 1, 4, or 5 usually mean U.S. assembly.

The IRS and Treasury have rules for figuring this out. Only vehicles fully assembled in a U.S. facility qualify—not just ones with some parts made here.

Gross Vehicle Weight Rating Standards

The car can’t be too heavy—there are gross vehicle weight rating (GVWR) limits. Most cars, light trucks, and SUVs are fine, but heavy-duty trucks probably won’t qualify.

Check the GVWR on the sticker inside the driver’s door. It’s the max weight, including people and cargo, not just the car itself.

Qualified Passenger Vehicle Loan Requirements

The loan itself has to meet some pretty specific rules for you to deduct the interest—timing, how it’s secured, and how you use the car all matter.

Loan Origination Date and Timing

Your loan must be taken out after December 31, 2024. So, only loans signed on or after January 1, 2025, count. Refinancing an old loan doesn’t help if the original was before the cutoff.

You can only deduct interest paid between 2025 and 2028. If you buy at the end of 2028, you get to deduct only what you pay that year—nothing after.

Secured Loan and First Lien Rules

The loan has to be secured by the vehicle. Basically, the lender needs to have a claim on your car in case you stop paying.

The loan needs to be the first lien—the top-priority loan on the car. If you have a second loan or an unsecured personal loan, that interest doesn’t qualify.

Your lender should handle the paperwork with your state so the loan is properly secured and gets first dibs if things go south.

Personal Use Versus Business Use

The car must be for personal use. If it’s mainly for business, you can’t use this deduction.

If you’re self-employed and use the car for work, you have to pick between this deduction or the business vehicle deductions, not both.

The personal use rule also means no rideshare, rental, or delivery vehicles. Even occasional business use could get you disqualified if the IRS thinks it’s not mostly for personal driving.

Calculating and Claiming the Car Loan Interest Deduction

You can deduct interest on a qualifying passenger vehicle loan, but only up to the caps and subject to your income. You’ll report it on Schedule 1-A and then move the number over to Form 1040.

Maximum Deduction Limits and Caps

The annual cap is $10,000 for interest paid on eligible loans. It doesn’t matter if you buy more than one qualifying car in a year. The cap does not change.

Your MAGI determines if you get the full deduction. The phase-out starts at $100,000 for singles and $200,000 for married filing jointly. Above those, the deduction fades out until it’s gone at the top end.

If you use your car for both business and personal reasons, only the personal-use portion qualifies here. Anything business-related goes on your business expenses instead.

Deduction for Interest Paid

You can only deduct the actual interest portion of your loan payments—not the principal, fees, or any extra charges. Your lender needs to give you documentation showing exactly how much interest you paid during the tax year, usually by filing information returns with the IRS.

Transitional relief is available for 2025, so lenders have a bit more time to get new reporting systems up and running. You’ll still want to keep up with your own payments and interest amounts throughout the year if you want to claim this deduction accurately.

The interest must be from a loan taken out after December 31, 2024, and only for buying a new vehicle assembled in the United States. Refinances and used cars do not count towards this, unfortunately.

Schedule 1-A and Form 1040 Reporting

You’ll report your qualifying car loan interest on Schedule 1-A—this is a new form made just for this deduction. It applies whether you itemize or take the standard deduction on Schedule A.

Once you’ve figured out your deduction on Schedule 1-A, you transfer that amount to Form 1040. Don’t forget to include your vehicle’s VIN on your return, since that’s required to back up your claim.

Schedule 1-A asks for details about your loan, where the car was assembled, and the total interest you paid. You’ll also need to do any phase-out calculations based on your MAGI before you report the final number.

Lender Reporting and Documentation Requirements

Under the OBBBA, lenders now have to report car loan interest payments to both the IRS and borrowers. It’s a new layer of compliance, kind of like what mortgage lenders already deal with. This hits any business that gets $600 or more in interest each year from qualified car loans.

Lender Information Reporting Obligations

Lenders who get $600 or more in interest from qualified car loans are now under mandatory reporting requirements under IRC Section 6055AA. In other words, auto lenders are now in the same boat as mortgage lenders when it comes to federal information reporting.

Lenders have to file info returns with the IRS and send borrowers statements showing the total interest received. The reporting covers both the loan and the vehicle itself.

Banks, auto lenders, and loan servicers are supposed to make sure the car meets all the qualified passenger vehicle rules. That means checking it’s under 14,000 pounds GVWR and that final assembly happened in the U.S.

Lenders usually deliver all this through Form 1098-Auto, which you’ll need if you want to claim the deduction on your tax return.

Borrower Documentation and Proof of Interest Paid

You’ll need to keep documentation showing the interest you paid really qualifies. Your lender is supposed to give you statements listing the total interest paid for the year.

Acceptable documentation could be:

• Online portals where you can log in and see details
• Monthly statements you get with your bill
• Annual statements at the end of the year
• Other similar methods that give you accurate interest info

You’ll need to include the vehicle’s VIN on your return to claim the deduction. Hang on to your loan agreement, payment records, and anything showing your car was assembled in the U.S. and bought for personal use.

Transition Relief and IRS Statements

The Treasury and IRS have issued transitional guidance in Notice 2025-57 to help lenders get up to speed in 2025. It’s meant to make the first year a bit less painful as everyone figures out the new rules.

For 2025, lenders are good as long as they make interest statements available using any of the approved methods above. The IRS won’t penalize lenders for missing information returns or payee statements as long as they follow the guidance in the Notice.

This penalty relief applies only to 2025 and to interest on qualified car loans. Lenders should still get ready for full compliance in future years—this transition period won’t last forever.

Strategies and Considerations for Maximizing the Deduction

Because the OBBBA deduction is temporary, timing and planning really matter if you want to get the most out of it. Your vehicle purchase, how you finance it, and your income all play into how much you’ll actually save in taxes through 2028.

Coordinating Vehicle Purchases with OBBBA Rules

Double-check where the car was assembled before you sign anything. The new deduction applies only to vehicles with final assembly in the U.S. Check the window sticker or use the NHTSA VIN decoder to confirm.

Your car has to be new—meaning you’re the first owner. Used cars don’t qualify, no matter where they’re from. The loan needs to start after December 31, 2024, and the vehicle must be under 14,000 pounds GVWR.

If you were already planning to buy, try to time your purchase between 2025 and 2028. The deduction ends after 2028, so if you finance late in the window, you’ll only get to deduct the interest for a short time. Buying in late 2028? You’ll only get one year of benefit, just so you know.

Comparing Loan Versus Lease Impacts

The deduction only applies to loan interest, not lease payments. So if you usually lease, you won’t get anything from this provision. That said, leasing can still make sense depending on your situation—lower payments, less commitment, etc. Do the math before you switch, just for the tax deduction.

If you do finance, don’t get tempted by a higher interest rate just to rack up more deductions. The deduction only saves you your marginal tax rate times the interest paid, so you’re still out most of that money. Keeping your rate low is still the smart move.

Planning for Income Phaseouts

Your modified adjusted gross income (MAGI) determines if you’ll lose part or all of the deduction. The OBBBA has income caps—the phase-out starts at $100,000 for singles and $200,000 for married couples filing jointly.

You might be able to lower your MAGI by maxing out contributions to a traditional 401(k), IRA, or HSA, which could help you keep more of the deduction. However, it’s important to ensure that these moves make sense for your overall finances, not just for a car loan deduction.

If your income is near the phaseout, try to project your year-end MAGI before making big interest payments. You might be able to shift some income into a different tax year to stay under the threshold. If you’re well above the limits, though, this deduction probably isn’t going to help you much.

Frequently Asked Questions

The One Big Beautiful Bill Act introduces a new deduction for car loan interest for loans taken out after December 31, 2024. There’s a $10,000 annual cap and income-based phaseouts starting at $100,000 for singles.

Can personal car loan interest be deducted under the current tax laws?

Yes, you can now deduct personal car loan interest under the No Tax on Car Loan Interest provision in the One Big Beautiful Bill Act. That’s a big change—personal interest deductions (including car loans) were basically gone before this.

The deduction is for interest paid on loans taken out after December 31, 2024, for new, made-in-America vehicles used personally. You can claim it whether you take the standard deduction or itemize.

It’s only for loans originated between January 1, 2025, and December 31, 2028.

What are the phase-out limits for deducting car loan interest under new tax regulations?

The deduction phases out by income, starting at $100,000 for singles and $200,000 for joint filers. It’s totally gone at $150,000 for singles and $250,000 for joint filers.

If your income is in the phase-out range, you’ll get a reduced deduction. Go above the top limit, and you’re out of luck—no deduction at all.

What types of vehicles are eligible for car loan interest deduction?

Only new passenger vehicles assembled in the U.S. count. The Treasury and IRS have rules for figuring out if the final assembly was in the U.S.

Used cars don’t qualify. The vehicle has to be for personal, not business, use.

How does the car loan interest deduction differ between purchases and leases?

This deduction is just for loans used to buy qualifying new cars. Lease payments aren’t covered, since leasing is structured differently than buying with a loan.

You need to have a qualified vehicle loan to claim the deduction. The proposed regs explain which loans count and how much interest you can actually deduct.

Are there any specific forms or procedures for claiming car loan interest deductions?

Your lender files info returns with the IRS showing your paid interest for the year. That’s what lets you claim the deduction on your tax return.

Lenders have to give you paperwork showing how much qualifying interest you paid. The proposed regulations spell out reporting rules for lenders, including what needs to go on the forms for both the IRS and taxpayers.

You can claim up to $10,000 in car loan interest per year even if you don’t itemize. There’s no limit on the number of loans, as long as each car is eligible.

Has the tax treatment of car loan interest deductions changed for the year 2026?

Yep, 2026 is only the second year you can actually deduct car loan interest under the new law. The IRS dropped proposed regulations on December 31, 2025, and honestly, the details are pretty dense—lots of fine print on who’s eligible and exactly what you need to report.

This deduction only applies to loans started after December 31, 2024, so tax payers got their first shot at it for the 2025 tax year. For 2026, nothing major has shifted: there’s still a $10,000 annual cap, and the income phase-outs are sticking around.

Also, watch out—if your car loan interest could qualify somewhere else (like as a business or investment expense), you can’t double dip. The rules are pretty clear about that.