🚗 Auto Loan Calculator
Find your exact monthly car payment. Enter the vehicle price, down payment, trade-in value, sales tax rate, and loan terms to see the full cost breakdown.
How Auto Loan Payments Work
Auto loans are typically simple interest installment loans — interest is calculated on the outstanding balance each month, and your fixed payment covers that month's interest plus a portion of the principal. The amount you actually finance is the vehicle price minus your down payment and any trade-in value, plus applicable taxes and fees. Understanding all of these components prevents surprises at the dealership where price negotiation and financing are often deliberately bundled together.
Down Payment and Trade-In Value
A larger down payment reduces the amount financed, which lowers your monthly payment and the total interest you pay. It also immediately reduces the risk of being "underwater" — owing more than the car is worth — which can happen quickly with new vehicles that depreciate 15–25% in the first year. Trade-in value functions like a down payment if applied at purchase. Dealers sometimes offer above-market trade-in values in exchange for a higher vehicle price, so knowing both figures independently helps you evaluate the deal clearly.
Auto Loan Rate Factors
Auto loan interest rates vary based on your credit score, the age of the vehicle (new vs. used loans carry different rates), the loan term length, and whether you finance through a bank, credit union, or dealership. Credit unions consistently offer competitive rates for members. Getting pre-approved before visiting a dealership gives you a benchmark rate and more negotiating leverage — you can accept dealer financing only if it genuinely beats your pre-approval.