Auto Loan Calculator Trade in Owed

This auto loan calculator helps you determine your monthly payments when factoring in the value of your trade-in vehicle and any remaining balance owed on it. Simply enter your loan details, trade-in value, and owed amount to get an accurate estimate of your new loan payments.

How to Use This Calculator

Using this auto loan calculator with trade-in is straightforward. Follow these steps:

Enter the total amount you need to finance (loan amount).
Input the value of your trade-in vehicle.
Specify any remaining balance owed on the trade-in vehicle.
Enter your desired loan term in months or years.
Provide the annual interest rate for your loan.
Click "Calculate" to see your estimated monthly payment.

The calculator will show you the total amount financed, your estimated monthly payment, and the total interest paid over the life of the loan.

Formula Used

The auto loan payment is calculated using the standard loan payment formula:

Monthly Payment = P × (r(1 + r)^n) / ((1 + r)^n - 1)

Where:

P = Principal amount (Loan Amount - Trade-In Value + Owed Amount)
r = Monthly interest rate (Annual Interest Rate / 1200)
n = Number of payments (Loan Term in months)

This formula accounts for the trade-in value and any remaining balance owed on the trade-in vehicle in the principal amount of your loan.

Worked Example

Let's say you want to finance a $25,000 car with a $10,000 trade-in and $2,000 still owed on the trade-in. You want to finance this over 60 months at an annual interest rate of 5%.

First, calculate the principal amount:

Principal = Loan Amount - Trade-In Value + Owed Amount

Principal = $25,000 - $10,000 + $2,000 = $17,000

Next, calculate the monthly interest rate:

Monthly Interest Rate = Annual Interest Rate / 1200

Monthly Interest Rate = 5% / 1200 ≈ 0.0041667

Now, plug these values into the loan payment formula:

Monthly Payment = $17,000 × (0.0041667(1 + 0.0041667)^60) / ((1 + 0.0041667)^60 - 1)

Monthly Payment ≈ $324.50

Your estimated monthly payment would be $324.50, with a total interest paid of $1,440 over the life of the loan.

FAQ

How does the trade-in value affect my loan payment?: The trade-in value reduces the amount you need to finance, which lowers your monthly payment. However, any remaining balance owed on the trade-in is added to the loan amount.
What if I don't have any balance owed on my trade-in?: If there's no balance owed on your trade-in, simply enter $0 for the owed amount. The calculator will use just the trade-in value to reduce your loan amount.
Can I use this calculator for refinancing?: Yes, you can use this calculator for refinancing by entering the remaining balance on your current loan as the loan amount, your trade-in value, and any balance owed on the trade-in.
Is the interest rate I enter the APR or the actual interest rate?: The interest rate you enter should be the actual interest rate charged on your loan, not the APR. The APR includes additional fees and costs.
How accurate are the results from this calculator?: The results are estimates based on the information you provide. Actual loan terms and payments may vary depending on your lender and the specific terms of your loan agreement.