Car Loan Interest can qualify for a new federal tax deduction of up to $10,000 under final regulations published by the Internal Revenue Service.
The deduction rules clarify how individuals can claim the deduction, which vehicles and loans qualify, how income limits reduce the benefit, and what lenders must report to borrowers and the IRS.
The final regulations were included in Internal Revenue Bulletin 2026-39, published September 21, 2026.
The regulations become effective November 9, 2026, although the underlying deduction applies to eligible taxable years beginning after December 31, 2024, and before January 1, 2029.
Table of Contents
How the car loan interest deduction works
The deduction applies to qualified passenger vehicle loan interest, which the IRS refers to as QPVLI.
For eligible taxpayers, personal interest on a qualifying vehicle loan is treated as deductible interest rather than nondeductible personal interest.
The car loan interest deduction is available whether a taxpayer itemizes deductions or claims the standard deduction.
That means taxpayers who do not have enough expenses to itemize may still claim the car loan interest deduction if they meet the other requirements.
The maximum deduction is $10,000 per federal tax return for a taxable year.
The $10,000 limit applies regardless of filing status, so married couples filing jointly do not receive a separate $10,000 limit for each spouse.
For example, if two spouses pay $6,000 and $5,000 of qualifying vehicle loan interest during the same year, their joint return is generally limited to $10,000 before any income-based reduction.
Which vehicles can qualify
The deduction is not available for every vehicle loan.
For the car loan interest deduction, the vehicle generally must be a car, minivan, van, sport utility vehicle, pickup truck or motorcycle that meets the applicable statutory requirements.
The vehicle must have a gross vehicle weight rating below 14,000 pounds.
Final assembly also must have occurred in the United States.
The IRS said taxpayers can generally verify the assembly location by checking the vehicle’s plant of manufacture as reported through the vehicle identification number, or VIN, or by reviewing the final assembly point shown on the vehicle label or window sticker.
The final regulations reject a make-and-model-only approach because the same model can be assembled in different countries or at different plants.
As a result, two vehicles with the same make and model may not receive the same tax treatment if their individual assembly locations differ.
The vehicle’s original use generally must begin with the taxpayer.
The final regulations explain that original use generally begins with the first person who takes delivery of a vehicle after it is sold, registered or titled.
For a purchaser using a loan, the loan documents must treat the vehicle as new for original use to begin with that taxpayer.
The final rules therefore focus the car loan interest deduction on qualifying new vehicles rather than ordinary used-vehicle purchases.
Loan requirements taxpayers must meet
To claim the car loan interest deduction, the debt must have been incurred after December 31, 2024.
The loan must be used to purchase the qualifying passenger vehicle and must be secured by a first lien on that vehicle.
The IRS defines a first lien as the first voluntary security interest recorded against the vehicle.
An involuntary lien, such as a temporary state tax lien or mechanic’s lien, does not automatically destroy first-lien status under the final regulations.
The rules also address short administrative delays in perfecting or recording a vehicle lien.
In certain circumstances, a loan can continue to qualify when a lien is temporarily or permanently released after events such as repossession or a total loss, provided the original vehicle finance contract met the first-lien requirement.
Financed amounts directly related to the vehicle purchase may also be included.
The IRS specifically identifies items such as sales taxes, vehicle-related fees, service plans and extended warranties as amounts that may be customarily financed in a vehicle purchase transaction.
Loan amounts used for unrelated property or services do not qualify.
The final regulations give collision and liability insurance that is not a credit insurance product, a trailer or a boat as examples of costs that do not become qualifying vehicle-loan debt.
Personal-use test is based on expected use
The vehicle must be purchased for personal use.
The car loan interest deduction uses an expected-use standard under the final regulations: a taxpayer meets the personal-use standard when the taxpayer expects the vehicle to be used personally by the taxpayer, the taxpayer’s spouse or certain related individuals for more than 50 percent of the period the taxpayer expects to own it.
The taxpayer generally does not have to reevaluate that expectation in later taxable years.
However, the same interest cannot be deducted twice.
For example, interest that is already deductible as a business expense cannot also be claimed as qualified passenger vehicle loan interest.
The final regulations include rules for allocating interest when a vehicle has both personal and business use.
Higher-income taxpayers face a phaseout
The full deduction is not available to every taxpayer with a qualifying loan.
The car loan interest deduction is reduced by $200 for each $1,000, or portion of $1,000, that modified adjusted gross income exceeds $100,000.
For married couples filing a joint return, the phaseout begins when modified adjusted gross income exceeds $200,000.
The reduction cannot lower the deduction below zero.
For purposes of this calculation, modified adjusted gross income generally means adjusted gross income plus amounts excluded under certain foreign-income provisions.
The income phaseout applies after the $10,000 annual dollar limit is calculated.
As an example, a single taxpayer with $7,000 of qualifying interest and modified adjusted gross income of $124,200 would face a $5,000 reduction because income exceeds the $100,000 threshold by $24,200, with each partial $1,000 counting for the phaseout.
The final allowable deduction in that example would be $2,000.
What lenders and vehicle finance companies must report
The new rules also create information-reporting obligations for businesses that receive qualifying vehicle-loan interest.
A person engaged in a trade or business that receives at least $600 of interest from an individual on a specified passenger vehicle loan during a calendar year generally must file an information return and furnish a statement to the borrower or payor of record.
The information may include the borrower’s name and address, the amount of interest received, the outstanding loan principal at the beginning of the year and the loan origination date.
The report also includes vehicle details such as the year, make, model and VIN.
The final regulations identify Form 1098-VLI as the form used to report the required information.
The reporting rules can affect banks, credit unions, finance companies, vehicle dealers that provide direct financing and other businesses that receive interest in the course of their trade or business.
The IRS estimates that approximately 36,000 businesses may issue information returns under the new requirements.
Lenders that fail to file accurate information returns or furnish required payee statements may face penalties, although the tax code’s reasonable-cause provisions may apply in appropriate cases.
What taxpayers should keep for their records
Taxpayers considering the car loan interest deduction should retain the loan agreement, annual interest statement, vehicle purchase documents and evidence of the vehicle’s VIN.
They should also keep documentation showing that the vehicle was finally assembled in the United States.
The IRS says taxpayers may use the vehicle’s VIN information or the assembly information on the vehicle label for that purpose.
Borrowers should review lender statements carefully because the amount of interest reported may not equal the amount ultimately deductible.
The $10,000 cap, income phaseout, personal-use test, vehicle requirements and rules against double deductions can all reduce the allowable amount.
When the rules matter for tax returns
The deduction is temporary under the statute.
The car loan interest deduction applies to taxable years beginning after December 31, 2024, and before January 1, 2029.
The final regulations themselves take effect November 9, 2026, giving taxpayers and lenders detailed rules before later filing seasons.
Interest recipients received limited transition treatment for calendar-year 2025 under earlier IRS guidance.
For future reporting, the final regulations do not create an additional broad delay or phased implementation period.
Taxpayers with qualifying loans should wait for the applicable IRS form and filing instructions before entering the deduction on a return.
The final regulations provide the eligibility framework, but the exact filing process may depend on future IRS forms, instructions and other implementation guidance.
Frequently Asked Questions
How much car loan interest can taxpayers deduct?
Eligible taxpayers may deduct up to $10,000 of qualified passenger vehicle loan interest per federal tax return for a taxable year, before applying the income-based phaseout.
Can taxpayers claim the deduction while taking the standard deduction?
Yes. The final regulations say the deduction is available to taxpayers who itemize and to taxpayers who claim the standard deduction.
What income limits apply to the car loan interest deduction?
The deduction begins to phase out above $100,000 of modified adjusted gross income for most taxpayers and above $200,000 for married couples filing jointly.
Do all car loans qualify for the deduction?
No. The loan generally must be incurred after December 31, 2024, used to purchase a qualifying vehicle, secured by a first lien, and connected to a vehicle whose original use begins with the taxpayer and whose final assembly occurred in the United States.
What must lenders report?
Businesses receiving at least $600 of qualifying interest on a specified passenger vehicle loan generally must report information such as the interest amount, loan details, borrower information and vehicle VIN.
Fact-Checked: Key eligibility, dollar-limit, income-phaseout, effective-date and lender-reporting details were checked against IRS Treasury Decision 10054 in Internal Revenue Bulletin 2026-39, published September 21, 2026.
Disclaimer: This article is for general informational purposes and is not tax advice. Taxpayers should review current IRS forms and instructions or consult a qualified tax professional before filing.
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