How the auto loan calculator works
Buying a car on finance means borrowing the price plus tax, minus whatever you pay upfront. The calculator computes the amount financed = price + sales tax − down payment − trade-in, then spreads it over your chosen term as equal monthly payments of principal and interest.
Ways to lower your payment
- Increase your down payment or trade-in to reduce the amount financed.
- Shop for a lower APR — your credit score strongly affects the rate.
- Choose the shortest term whose payment you can comfortably afford.
Frequently asked questions
How is the car payment calculated?
The calculator adds sales tax to the price, subtracts your down payment and trade-in to get the amount financed, then applies the standard amortizing-loan formula using your interest rate and term in months.
How does a trade-in affect the loan?
A trade-in lowers the amount you need to finance, and in many regions it also reduces the taxable amount, so it can lower both your loan and your sales tax.
Should I choose a longer term for a lower payment?
A longer term lowers the monthly payment but increases total interest, and you may owe more than the car is worth for longer. Shorter terms cost less overall.
Does sales tax work the same everywhere?
No. Rates and rules differ by region — some tax the full price, others tax price minus trade-in. This calculator taxes price minus trade-in; enter your local rate for the closest estimate.
Estimates only, not financial advice. Confirm figures with your dealer or lender.