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Auto Loan Calculator (with Tax & Trade-in)
Free auto loan calculator: monthly payment, total interest and total cost with sales tax, fees, down payment and trade-in, plus the 2025–2028 car loan interest deduction.
Your car
Monthly payment
$639.81
| Sales tax | $2,100 |
| Amount financed | $32,700 |
| Total interest | $5,689 |
| Total cost of the car | $43,389 |
From 2025 to 2028 you can deduct up to $10,000 a year of interest on a loan for a new car assembled in the US (it phases out above $100,000 of income, $200,000 married).
Some states tax differently or don't give a trade-in credit. Not legal, tax or financial advice. 🔒 Everything stays on your device.
✅ Rules last checked:
📚 Official sources: CFPB: auto loans
We build every tool from the official rules and re-check them when they change. Always confirm with the official source before you rely on a result.
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Questions people ask
What is the payment on a $30,000 car loan?+
About $580 a month over 60 months at 6% APR, with about $4,800 of interest.
Can I deduct car loan interest?+
From 2025 to 2028, up to $10,000 a year of interest on a loan for a new car assembled in the US, for personal use; it phases out above $100,000 of income ($200,000 married).