This free auto loan calculator shows your real monthly car payment, not just the sticker price. Enter the vehicle price, down payment, trade-in, sales tax, dealer fees, interest rate, and loan term, and see your payment, the total amount you finance, and the total interest you will pay. It even warns you when a trade-in leaves you upside-down or a long term quietly inflates the cost. No signup required.
What the dealer will pay for your current car.
Loan balance left on the car you are trading in.
Add the vehicle price and loan term to see your estimated monthly car payment and total cost.
Financing a car? Track the loan, payments, and payoff progress in Auritrack so you always know how much you owe and when you will be free of it.
Try Auritrack FreeType in the negotiated price of the car and how much cash you plan to put down. A larger down payment lowers the amount you finance and your monthly payment.
Enter what the dealer will pay for your current car, plus any loan balance you still owe on it. If you owe more than it is worth, the calculator flags the negative equity that gets rolled into the new loan.
Enter your local sales tax rate (defaults to 7%) and any dealer, documentation, or registration fees. These are added to the amount you finance unless you pay them upfront.
Enter the annual percentage rate your lender quoted and pick a term from 36 to 84 months. Watch how longer terms lower the monthly payment but raise the total interest.
See your estimated monthly payment, amount financed, total interest, and total cost instantly. Expand the amortization schedule to see how each payment splits between principal and interest.
A car payment is not simply the price of the car divided by the number of months. Three numbers drive it: the amount you actually finance, your interest rate, and the length of the loan. The amount financed starts with the vehicle price, then adds sales tax and dealer fees, and subtracts your down payment and any equity in a trade-in. That principal is then amortized, meaning it is spread evenly across the term so every payment is the same size. In the early months, most of each payment covers interest and only a little chips away at the balance. As the balance falls, the interest portion shrinks and more of each payment goes to principal. The math is identical to any installment loan, which is why our general loan and EMI calculator uses the same amortization engine under the hood.
The single most effective way to shrink a car payment is to finance less. A cash down payment does this directly: every dollar you put down is a dollar you do not borrow and do not pay interest on. A trade-in works the same way when you own the car outright. If your old car is worth more than you owe on it, that positive equity behaves exactly like additional cash down. In most states and countries, a trade-in also lowers the amount subject to sales tax, because tax is charged on the price after the trade-in value is subtracted rather than on the full sticker price. On a $35,000 car with an $8,000 trade-in and a 7% tax rate, that trade-in credit alone saves you $560 in tax. Between the reduced principal, the lower interest on that principal, and the tax savings, a solid down payment or trade-in can cut a payment far more than shopping for a slightly better rate.
Dealers love to quote a low monthly payment, and the easiest way to produce one is to stretch the loan over 72 or 84 months. The payment drops, but the cost climbs. You are borrowing the same money for longer, so you pay interest for more years, and long loans frequently carry higher rates than shorter ones. The deeper problem is timing. Most new cars lose 20% or more of their value in the first year and roughly half within five years, while an 84-month loan barely dents the balance in that same window. The result is that you spend most of the loan owing more than the car is worth. If it is stolen, totaled, or you simply need to sell, you have to cover the gap out of pocket. A good rule of thumb is to avoid any car you can only afford with a term longer than 60 months. If the payment only works at 72 or 84 months, that is usually a signal to buy a less expensive car. Before you commit, it is worth checking how the payment sits against your other debts with a debt-to-income calculator.
Negative equity, also called being upside-down or underwater, means you owe more on the loan than the car is worth. It is uncomfortably common, and it compounds when you trade in one underwater car for another. Say you still owe $10,000 on a car a dealer values at $8,000. That $2,000 shortfall does not disappear. It is rolled into your new loan, so if the new car costs $35,000, you finance the price plus tax and fees plus the $2,000 you were already behind. You drive off the lot owing more than the new car is worth from day one. Rolling negative equity forward is how buyers end up owing $40,000 on a $30,000 car a few years later. The way out is unglamorous but reliable: put more cash down, keep the loan term short, and hold onto cars long enough for the balance to fall below the car’s value. This calculator flags negative equity the moment your trade-in balance exceeds its value, so you can see exactly how much you are carrying forward.
The price on the window is never the amount you pay. Sales tax is charged on most vehicle purchases, and rates vary widely by location, so a 7% default is only a starting point. On top of tax, dealers add documentation fees, and your local authority charges title and registration fees. Unless you pay these in cash at signing, they are folded into the amount you finance, which means you also pay interest on them for the life of the loan. That is why two identical cars at the same price can produce different payments depending on where you buy and how the fees are handled. When you budget for a car, use the total cost this calculator produces, not the sticker price, and make room for the recurring costs a loan does not include: insurance, fuel, maintenance, and repairs. Slotting that full number into a monthly budget planner before you sign is the difference between a car that fits your life and one that strains it.
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Disclaimer: This tool is provided for informational and educational purposes only. It does not constitute financial, tax, investment, or legal advice. Results are estimates based on the inputs you provide and may not reflect actual financial outcomes. Always consult a qualified financial professional before making financial decisions.
