Auto Loan Calculator

Calculate monthly car payments, total loan financing amounts, interest costs, and upfront taxes/fees. Includes an interactive monthly amortization schedule.

Summary:This Auto Loan Calculator helps you estimate monthly car payments, total financed principal, taxes, fees, and check payment schedules instantly.

Loan Parameters

Financing Options
Estimated Monthly Payment
$0.00
Total Financed$0.00
Total Interest Paid$0.00
Total Tax & Fees$500.00
Cash Due at Signing$0.00
Total All-Inclusive Cost$0.00
Cost Breakdown Ratio
Taxes & Fees (100.00%)

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How to Use Auto Loan Calculator

Our Auto Loan Calculator is a free financial utility. To use this tool: 1. Input the vehicle price, down payment (as a fixed amount or percentage), and trade-in allowance. 2. Enter the Annual Interest Rate (APR) and select your preferred loan term (in months). 3. Input the local sales tax rate and fees (title, registration, docs). 4. Choose whether to roll sales tax and fees into the loan principal. 5. Click 'Calculate Auto Loan' to view the monthly payment, upfront cash due, and amortization schedule.

Auto Loan Calculator Formula / How It Works

This calculator uses standard compound interest formulas to determine monthly payments. It translates annual interest rates into monthly portions and amortizes the total financed amount (adjusted for down payments, trade-ins, and selected rolled-in taxes or document fees) across the loan term.

Formula:Payment = P * [r(1+r)^n] / [(1+r)^n - 1]; Net Price Tax Basis = Vehicle Price - Trade-in Value
Example Calculation:

For example, financing a $30,000 vehicle with a $5,000 down payment, $2,000 trade-in, and 5% APR over 60 months (excluding tax and fees) results in a monthly payment of $434.04, with total interest paid of $3,042.30.

Frequently Asked Questions

In most jurisdictions, sales tax is calculated on the net purchase price of the vehicle after subtracting the trade-in allowance. This calculator applies tax on the net price: (Vehicle Price - Trade-in Value) * Sales Tax Rate.

Rolling taxes and fees into your auto loan increases the principal loan amount, which lowers your out-of-pocket cash due at signing but increases the total interest you pay over the life of the loan.

Upfront cash represents your down payment plus any sales tax, registration, or title fees that you chose not to roll into the loan principal.

Yes! Setting the interest rate (APR) to 0% divides the loan principal evenly by the term length to determine the payment.

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