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Calculator · 2026 Tax Changes

Car Loan Interest Deduction Calculator

Up to $10,000 of interest on a US-assembled new vehicle is deductible. See how much of yours qualifies.

Read the how-to
The formula

How this number is built

deduction = min(annual loan interest, $10,000) − $200 × every $1,000 of MAGI above $100,000 ($200,000 joint)
Step by step

Doing it by hand

Step 1

Check final assembly location using the VIN — the NHTSA VIN decoder shows the plant country.

Step 2

Confirm the vehicle is new to you; used purchases are excluded regardless of the loan date.

Step 3

Confirm the loan originated after 31 December 2024, and that it is secured by the vehicle.

Step 4

Take the interest actually paid this calendar year, not the total over the loan.

Step 5

Apply the $10,000 cap, then reduce by $200 for every $1,000 of MAGI above your threshold.

Questions

What people ask next

Does refinancing keep the deduction?

Refinanced loans can qualify, but the original loan must still meet the origination-date and vehicle rules. Check the current IRS guidance for your situation.

Does a lease qualify?

No. The deduction applies to interest on a loan secured by a vehicle you own, not to lease payments.

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