What is included
Vehicle price, down payment, trade-in value, trade-in loan payoff, APR, loan term, and any taxes or fees you choose to finance.
2026 auto loan calculator with trade-in
Auto loan calculator with trade-in
Estimate amount financed, monthly payment, and interest after trade-in equity, down payment, APR, taxes, and fees.
Formula shown
Front-end only
APR default: U.S. average
Updated September 12, 2026
Amortization preview
Your first year, month by month.
Preview the first 12 payments or expand the full schedule to see how interest falls as principal is paid down.
First payment
$0
Principal in first payment
$0
Interest in first payment
$0
Payoff
60 months
On small screens, swipe the table sideways to see every column.
| Month | Payment | Principal | Interest | Balance |
|---|
Direct answer
How to calculate a car payment with trade-in.
Start with the vehicle price, subtract the down payment and net trade-in equity, add any taxes and fees you plan to finance, then apply APR and term with the fixed-rate amortization formula. Net trade-in equity equals trade-in value minus the remaining loan payoff.
Amount financed = vehicle price − down payment − net trade-in equity + financed taxes and fees. Monthly payment = P × r(1+r)n / ((1+r)n − 1), where P is amount financed, r is the monthly interest rate, and n is the number of monthly payments.
Calculation steps
Trade-in payment estimate, step by step.
- Start with the negotiated vehicle price.
- Subtract the cash down payment.
- Subtract net trade-in equity (trade-in value minus remaining payoff).
- Add taxes and fees you plan to finance.
- Apply APR and term with the fixed-rate amortization formula.
Trade-in comparison
With trade-in vs without trade-in.
Holding price, down payment, taxes, fees, APR, and term constant, a $3,000 positive net trade-in equity cuts about $59 from the monthly payment and about $562 from total interest over 60 months.
| Metric | With $3,000 trade-in | Without trade-in | Difference |
|---|---|---|---|
| Amount financed | $29,400 | $32,400 | -$3,000 |
| Monthly payment (60 mo @ 6.98%) | $582 | $641 | -$59 |
| Total interest | $5,513 | $6,075 | -$562 |
| Total paid | $34,913 | $38,475 | -$3,562 |
This page is a car payment calculator with trade-in. If the remaining payoff is larger than the trade-in value, use the Negative Equity Car Loan Calculator. For the equity math in plain English, read how trade-in value affects payments.
Methodology
Assumptions & sources
Default APR
The default 6.98% APR is a U.S. national reference rate for a 60-month new-car loan reported by WSJ Buy Side using Bankrate data in June 2026. It is a starting point only, not a local quote or approval. Your APR can differ by credit, lender, vehicle age, term, state, and the date you apply.
What is not included
Insurance, registration renewal, fuel, maintenance, repairs, depreciation, late fees, lender fees not entered, or dealer add-ons.
Payment formula
Monthly payment uses the standard fixed-rate amortization formula, the same constant-payment structure as spreadsheet PMT functions. This calculator does not compute a legal APR disclosure; it uses the APR you enter and converts it to a monthly rate for planning.
Use the estimate to compare scenarios, then verify terms with lenders. Your contract and Truth in Lending disclosures control the actual cost of credit.
FAQ
Car payment and trade-in questions.
How do I use a car payment calculator with trade-in?
Enter vehicle price, cash down, trade-in value, any remaining trade-in payoff, APR, term, and financed taxes or fees. The calculator estimates amount financed, monthly payment, total interest, and an amortization preview.
How do I calculate a car payment with trade-in?
Start with the vehicle price, subtract your down payment and net trade-in equity, then add any taxes and fees you plan to finance. The calculator applies the APR and loan term to that amount financed.
Does a trade-in reduce my monthly payment?
A trade-in reduces the monthly payment only when it creates positive net equity. Net trade-in equity equals trade-in value minus remaining payoff. Positive equity lowers the amount financed. In the default example, $3,000 of equity lowers the payment from about $641 to about $582 on a 60-month loan at 6.98% APR.
What is the difference between an auto loan calculator with trade and a car finance calculator with trade-in?
They describe the same planning task: estimate a financed car payment after applying trade-in equity. AutoLoanLabs uses net trade-in equity, amount financed, APR, and term to estimate the payment.
How is a car loan payment calculated?
A car loan payment is usually calculated with the standard amortization formula for a fixed-rate installment loan, using the amount financed, periodic interest rate, and number of payments.
Related calculators and guides
Related trade-in payment tools.
Compare nearby trade-in choices here. Refinance, early payoff, and 72-month tools live in the calculator directory.