Finance

Car Loan Interest Deduction Calculator (2026)

Q: Can I deduct car loan interest in 2026?

Yes, under a temporary OBBBA rule you can deduct up to **$10,000** of interest per year on a loan for a **new, personal-use vehicle** with **final assembly in the United States**, if the loan started **after December 31, 2024**. It applies to tax years 2025–2028.

Q: Does a used car qualify?

No. The deduction only covers **new** vehicles. Used cars, leases, and vehicles assembled outside the U.S. do not qualify, and the loan must be **secured by** the vehicle.

Q: How do I know if my car was assembled in the U.S.?

Check the **VIN** and the window sticker (Monroney label), which lists the final assembly point. You report the **VIN** on your tax return, and only vehicles with **U.S. final assembly** qualify.

Q: What is the income limit for the car loan deduction?

It phases out when **MAGI** exceeds **$100,000** (single) or **$200,000** (married filing jointly), losing **$200 per $1,000** over the threshold. The deduction reaches **$0** at $150,000 (single) / $250,000 (joint).

Q: Do I have to itemize to claim it?

No. This deduction is available **even if you take the standard deduction**, which makes it usable by most taxpayers who finance a qualifying new car.

Q: Is there a limit on how much interest I can deduct?

Yes — **$10,000** of interest per year. Interest paid above that cap is not deductible, and the cap is the same for single and married filers.

Q: Which years does the deduction apply to?

Tax years **2025 through 2028**. It is a temporary OBBBA provision and expires after 2028 unless Congress extends it.

Estimate your 2026 OBBBA car loan interest deduction: up to $10,000 of interest on a new, U.S.-assembled personal-use vehicle, with the $100k/$200k MAGI phase-out and your federal income tax savings.

Data verified · July 2026
Edited by Martín Rodríguez
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Data updated: Jan 1, 2026 · Source: IRS — OBBBA tax deductions

Edited by: Martín Rodríguez (editorial policy )

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For the first time in decades, personal car loan interest can be tax-deductible. The One Big Beautiful Bill Act (OBBBA) created a temporary deduction for tax years 2025 through 2028: up to $10,000 of interest per year on a loan for a new, personal-use vehicle with final assembly in the United States.

This is unusual — normally only business vehicle interest is deductible. And unlike itemized deductions, you can claim this one even if you take the standard deduction.

The rules are specific. The vehicle must be new (not used), for personal use, and the loan must be secured by the vehicle and originated after December 31, 2024. You report the VIN on your return. Enter the interest you paid this year, your filing status, and your MAGI to see your deduction and the federal tax it saves.

When to use this calculator

See how much car loan interest you can deduct in 2026.
Estimate the federal income tax the deduction saves.
Check whether your income phases out the deduction.
Confirm your new vehicle meets the U.S.-assembly rule.
Compare the deduction across different loan interest amounts.
Plan a new-car purchase around the $10,000 interest cap.
Decide whether to finance versus pay cash given the tax break.
See the deduction at single vs married filing jointly thresholds.

Maximum 2026 car loan interest deduction by MAGI (single filer)

MAGI	Phase-out reduction	Max deduction remaining
$100,000 or less	$0	$10,000
$110,000	$2,000	$8,000
$120,000	$4,000	$6,000
$140,000	$8,000	$2,000
$150,000 or more	$10,000	$0

Source: IRS OBBBA car loan interest deduction (2025-2028). Reduction is $200 per $1,000 of MAGI over $100,000 (single) / $200,000 (married filing jointly). Cap is $10,000 of interest for all filers.

How it works

How the car loan interest deduction works

Eligible interest = min(interest paid, $10,000)
Phase-out         = −$200 of deduction per $1,000 of MAGI over the threshold
Threshold         = $100,000 single / $200,000 married filing jointly
Tax saved         ≈ deduction × your marginal federal rate

The phase-out is steeper than the tips/overtime ones — $200 per $1,000 (20% of the excess). A single filer at $120,000 MAGI is $20,000 over the threshold, cutting the deduction by $4,000. It reaches $0 at $150,000 (single) / $250,000 (joint).

Which vehicles qualify

Requirement	Detail
Condition	New vehicle (not used)
Use	Personal use (not a business/fleet vehicle)
Assembly	Final assembly in the United States (check the VIN / window sticker)
Loan date	Loan originated after December 31, 2024
Security	Loan secured by the vehicle
Reporting	VIN reported on your tax return

Refinancing a qualifying loan can still qualify, but only interest on the original balance counts — cash-out amounts above the original loan do not.

Why it is notable

It is available without itemizing — most taxpayers take the standard deduction and can still claim this.

It does not apply to leases, used cars, or motorcycles/vehicles assembled outside the U.S.

Interest above $10,000 in a year is not deductible.

Disclaimer

Educational estimate of a federal deduction. Savings depend on your full return and marginal rate; state tax and credits are not modeled. Confirm your vehicle's U.S. final assembly and your loan's eligibility with the IRS guidance and a tax professional before relying on the deduction.

Example: $4,000 of interest, single, $80,000 MAGI

Interest $4,000 is below the $10,000 cap, so all $4,000 counts.

MAGI $80,000 is below the $100,000 phase-out, so there is no reduction.

Deduction = $4,000.

At a 22% marginal rate, that saves about $880 in federal income tax.

Deduction $4,000; about $880 in federal tax saved

Frequently asked questions

Can I deduct car loan interest in 2026?

Yes, under a temporary OBBBA rule you can deduct up to $10,000 of interest per year on a loan for a new, personal-use vehicle with final assembly in the United States, if the loan started after December 31, 2024. It applies to tax years 2025–2028.

Does a used car qualify?

No. The deduction only covers new vehicles. Used cars, leases, and vehicles assembled outside the U.S. do not qualify, and the loan must be secured by the vehicle.

How do I know if my car was assembled in the U.S.?

Check the VIN and the window sticker (Monroney label), which lists the final assembly point. You report the VIN on your tax return, and only vehicles with U.S. final assembly qualify.

What is the income limit for the car loan deduction?

It phases out when MAGI exceeds $100,000 (single) or $200,000 (married filing jointly), losing $200 per $1,000 over the threshold. The deduction reaches $0 at $150,000 (single) / $250,000 (joint).

Do I have to itemize to claim it?

No. This deduction is available even if you take the standard deduction, which makes it usable by most taxpayers who finance a qualifying new car.

Does refinancing a car loan still qualify?

Generally yes, if the original loan met the requirements. However, you can only deduct interest on the original loan balance — interest on any cash-out amount above that balance does not qualify.

Is there a limit on how much interest I can deduct?

Yes — $10,000 of interest per year. Interest paid above that cap is not deductible, and the cap is the same for single and married filers.

Which years does the deduction apply to?

Tax years 2025 through 2028. It is a temporary OBBBA provision and expires after 2028 unless Congress extends it.

Sources & references

Methodology & trust

Editorial

Finance calculator with its formula verified automatically against IRS — One Big Beautiful Bill Act: tax deductions for working Americans and seniors, per our editorial policy and methodology.

Updates

Updated: July 2026. Parameters are verified periodically against the cited sources.

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Limitations

Indicative results. For critical decisions, consult a professional.

📌 How to cite this calculator

Rodríguez, M. (2026). Car Loan Interest Deduction Calculator (2026). Hacé Cuentas. https://hacecuentas.com/en/car-loan-interest-deduction-calculator

Content licensed under CC-BY 4.0 — reuse it citing the source with a link to Hacé Cuentas.

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