Auto Loan Calculator
Your monthly car payment with sales tax, fees, down payment and trade-in, and what the loan costs in interest, with a full payment schedule.
Monthly payment on the amount financed, by term and rate
| Financed | 36 months at 6% | 60 months at 7% | 72 months at 8% |
|---|---|---|---|
| $15,000 | $456.33 | $297.02 | $263.00 |
| $25,000 | $760.55 | $495.03 | $438.33 |
| $35,000 | $1,064.77 | $693.04 | $613.66 |
| $45,000 | $1,368.99 | $891.05 | $789.00 |
Total interest on $30,000 financed, by term (7%)
| Term | Monthly payment | Total interest |
|---|---|---|
| 36 months | $926.31 | $3,347 |
| 48 months | $718.39 | $4,483 |
| 60 months | $594.04 | $5,642 |
| 72 months | $511.47 | $6,826 |
| 84 months | $452.78 | $8,034 |
How this calculator works
Amount financed = price + sales tax + fees − down payment − trade-in. Most states tax the price less the trade-in; a few tax the full price. The payment uses the standard loan formula.
What it assumes
- A simple-interest loan with equal payments.
- Optional add-ons (extended warranties, GAP insurance) raise the amount financed if rolled into the loan.
- Negative equity on a trade-in (owing more than it's worth) adds to the loan: enter the trade-in net of what you owe.
Questions people ask
What is the payment on a $35,000 car?
With $5,000 down, 6% sales tax and $800 of fees at 7% over 60 months: about $651.46 a month.
Is a 72- or 84-month car loan a good idea?
It lowers the payment but costs more interest, usually at a higher rate, and you can owe more than the car is worth for years. Shorter is cheaper if the payment fits.
Does a trade-in lower sales tax?
In most states, yes: tax applies to the price minus the trade-in value. A few states tax the full price.
Is car loan interest tax deductible?
For 2025 through 2028, up to $10,000 a year on a new, US-assembled car for personal use, bought with a loan taken out after 2024, subject to an income phase-out. The car loan interest deduction calculator works it out.
Related calculators
Sources
Updated by the RateHerald team. The maths is tested against worked examples; report a problem.