Car Loan Calculator

How to use the car loan calculator

The financed balance starts with the vehicle price, adds modeled sales tax and entered financed fees, then subtracts the cash down payment and trade-in credit. Your chosen trade-in treatment determines whether the credit also reduces the taxable price. A standard fixed-rate amortization formula converts that balance into monthly payments, and the schedule separates interest from principal for every month.

Does the trade-in always reduce tax?

No. Rules depend on the transaction and jurisdiction. Select the treatment that matches your quote rather than assuming a tax credit applies. The fee field is entered after tax and is not taxed again.

What about an existing loan on my trade-in?

Enter the net trade-in credit after any payoff, or account for a financed shortfall in the fee field. This tool does not check vehicle value, lender approval, insurance or ownership costs.

How should I compare scenarios?

Start with the example, then replace every relevant value with your own figures. Keep the currency and time periods consistent. Change one assumption at a time and calculate again to see its effect. The initial values are examples, not recommended rates, prices or budgets. When comparing alternatives, include the same categories in each scenario so that a missing expense does not make one choice appear cheaper.

Can I save or share the result?

Use Copy summary for a concise text result, or Export CSV for the available figures. Calculations run in your browser; entered amounts are not uploaded by this tool. An exported file contains your information, so choose where to store or share it. Displayed amounts are rounded to two decimal places, while most intermediate calculations retain additional precision. Small differences from a bill or statement can therefore occur.

What should I check before using the numbers?

Read the calculation assumptions beside the result and confirm the inputs against the relevant quote, agreement or records. This tool provides an estimate based on those inputs, not an approval, market forecast or personalized financial recommendation. Refresh the calculation when your circumstances or the underlying terms change.