Car Loan Amortization Calculator

Car loan amortization is the process of gradually paying off your auto loan through scheduled monthly payments that include both principal and interest. Each payment reduces your loan balance while covering the interest cost. See also our Car Sales Tax Calculator.

The monthly payment is calculated using the loan amount, interest rate, and loan term. The formula considers the present value of all future payments to determine a fixed monthly amount that will fully pay off the loan.

Early payments contain more interest because interest is calculated on the remaining loan balance. Since the balance is highest at the start, more of your payment goes toward interest rather than principal.

Including taxes and fees in your loan increases the total amount borrowed and interest paid over time. If possible, paying these costs upfront can save money, but financing them may be necessary if cash flow is limited. You might also find our Lease Mileage Penalty Calculator useful.

A larger down payment reduces the loan amount, resulting in lower monthly payments and less total interest paid. It also helps you avoid being upside-down on the loan and may qualify you for better interest rates.

Most car loans allow early payoff without penalties, but check your loan agreement. Paying extra toward principal or making additional payments can significantly reduce the total interest paid over the loan term.

Your credit score directly impacts the interest rate you qualify for. Higher credit scores typically result in lower interest rates, which means lower monthly payments and less total interest paid over the loan term.

Simple interest is calculated on the remaining balance, so paying early saves interest. Precomputed interest calculates total interest upfront, so early payments may not save as much. Most modern car loans use simple interest.