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Tax year 2026 · Federal & state tables · Computed in your browser

Federal tax saved, on car loan interest.

per year · single · 2026 tables

Interest considered
$2,095
Reduction
$2,095
Deduction allowed
$0
Tax saved
$0

Don’t know the actual interest yet? Estimate it

Estimated using standard monthly amortization on a fixed rate. Interest is front-loaded, so year one is the highest-interest year of the loan. This fills in “Annual interest paid” above; edit that field directly once you know the real number from your lender.

The deduction, line by line

Per year
Interest paid$2,095.00
Interest considered (statutory $10,000 cap)$2,095.00
Reduction (phase-out above the MAGI threshold)−$2,095.00
Deduction allowed$0.00
Federal tax saved$0.00

Unlike the tips, overtime, and senior deductions, this one has no joint-return requirement. Married filing separately still qualifies, just at the lower $100,000 MAGI threshold instead of $200,000.

Does your loan actually qualify?

This calculator can’t check any of these for you. It only computes the deduction assuming your loan and vehicle qualify. All of the following must be true:

  • The vehicle is new: its “original use” begins with you. A used car does not qualify, even from a first owner who never titled it.
  • It’s for personal use, not a business vehicle.
  • The loan was originated after December 31, 2024. Refinancing an older loan does not create new eligibility for the original debt.
  • Final assembly happened in the United States.
  • You report the vehicle identification number (VIN) on your tax return.
  • It’s financed with a loan: lease payments do not qualify, interest or otherwise.

The math, shown

Qualified passenger vehicle loan interest is first capped at $10,000 a year, flat, regardless of filing status; it does not double for a joint return. The capped amount is then reduced by $200 for each $1,000, or fraction of $1,000, that modified adjusted gross income (MAGI) sits above $100,000 ($200,000 on a joint return). The published IRS Schedule 1-A worksheet (line 28) says to round a partial $1,000 up (“increase the result to the next higher whole number”), the mirror image of how the tips and overtime worksheets round a partial $1,000 down. In practice that means even $1 of MAGI over the threshold already costs a full $200, and the deduction actually hits zero about $1,000 of MAGI before the naive “$50,000 over the threshold” boundary would suggest.

The federal tax saved is the difference between tax on your income with and without that deduction subtracted, on the same 2026 brackets and standard deduction as every other calculator on this site. Unlike the tips, overtime, and senior deductions, married filing separately is not shut out here: §163(h)(4) has no joint-return requirement, so a separate filer still qualifies at the lower $100,000 threshold.

None of this checks whether your own loan and vehicle actually qualify. See the eligibility checklist below. The estimator further down assumes a standard fixed-rate, fully-amortizing loan; a real loan with fees, a variable rate, or extra payments will differ.

Quick answers

Is my car loan interest completely tax-free now?
No. The One, Big, Beautiful Bill Act created a temporary deduction (2025–2028), codified at new 26 U.S.C. §163(h)(4), for up to $10,000 a year of interest on a qualifying loan, not an exemption, and only if the vehicle and loan meet every eligibility condition below.
Does a used car qualify?
No. §163(h)(4)(D) requires the vehicle's “original use” to commence with the taxpayer. In effect, only a new vehicle qualifies. A used car, even one bought from its very first owner, does not.
Do lease payments qualify?
No. The statute explicitly excludes “a loan to finance any lease financing.” Only interest on an actual purchase loan can be deducted. Leasing a vehicle doesn't create any deductible interest under this provision.
Can I claim this if I'm married filing separately?
Yes. Unlike the tips, overtime, and senior deductions, this one has no joint-return requirement for married taxpayers. §163(h)(4) contains no such gate, and Schedule 1-A’s Part IV instructions omit the “you must file jointly” sentence that appears in the tips, overtime, and senior-deduction parts. A married-separate filer still qualifies, using the lower $100,000 MAGI threshold rather than the $200,000 joint threshold.
Do I need to itemize to claim it?
No. Like the other new deductions on Form 1040 Schedule 1-A, it’s available whether you itemize or take the standard deduction, and it stacks on top of either one.

Sources