How the Auto Loan Calculator works
Vehicle affordability depends on the amount financed, not the sticker price alone. Taxes, documentation charges, add-ons, and negative trade equity can increase the balance, while cash down and positive trade value reduce it.
Method: Amount financed = vehicle price + taxes and fees โ down payment โ trade-in; payment uses standard loan amortization.
Inputs to review
- Vehicle price: Use a realistic current value and test a conservative alternative.
- Down payment: Use a realistic current value and test a conservative alternative.
- Trade-in value: Use a realistic current value and test a conservative alternative.
- Taxes and fees financed: Use a realistic current value and test a conservative alternative.
- Annual percentage rate: Use a realistic current value and test a conservative alternative.
- Loan term: Use a realistic current value and test a conservative alternative.
How to interpret the result
Compare several terms. A longer loan may lower the monthly bill but usually raises interest and increases the period when the balance can exceed the vehicle's value.
Assumptions and limitations
The tool does not include changing insurance, fuel, repairs, depreciation, rebates, or lender-specific fees. Confirm the final amount financed and APR in the contract.
Recalculate when rates, balances, income, goals, or time horizons change. A useful estimate is a range built from several plausible scenarios, not a single precise-looking number.