You enter the vehicle price, down payment, trade-in value, sales tax rate, interest rate, and loan term in months. The tool subtracts your down payment and trade-in from the price, applies sales tax to that net amount, then uses the standard amortization formula to distribute principal and interest into equal monthly payments. It assumes tax is rolled into the loan and does not include dealer fees, GAP insurance, or extended warranties.
Rates vary by credit score, loan term, and whether the car is new or used. As of recent data, borrowers with excellent credit typically see rates in the 4–6% range for new vehicles. Check multiple lenders and your credit union before committing.
A shorter term means higher monthly payments but less total interest. A longer term lowers your monthly bill but increases the total you pay over the life of the loan. Generally, 48–60 months balances affordability with total cost.
In most states, sales tax is added to the financed amount if you do not pay it upfront. Some states (like Montana and Oregon) do not charge sales tax on vehicles at all. This calculator assumes tax is financed, which is the most common scenario.
No. This calculator covers principal and interest only. Insurance premiums, registration fees, and maintenance are separate costs you should budget for on top of your monthly payment.
Your trade-in value is subtracted from the vehicle price before tax and financing are calculated, which lowers the loan principal. A higher trade-in means a smaller loan and lower monthly payments.
Estimate only. Results reflect your inputs and standard formulas. Double-check important decisions independently.