How to use an auto loan calculator

1. Enter vehicle price.
2. Enter down payment and optional trade-in.
3. Optional: enter a sales tax percent and fees you want to model.
4. Enter a sample APR and term (or use term presets).
5. Optional: add extra monthly payment.
6. Read payment, amount financed, interest, term compare table, and schedule.

Example: $30,000 · $3,000 down · 7% · 60 months

What it is not

• Not a dealer or bank quote
• Not credit approval or insurance
• Not a live tax or fee lookup

How we calculate · Questions

Frequently asked questions

What inputs do I need?

Vehicle price, down payment, optional trade-in/tax/fees, sample APR, and term in months. APR is not a live dealer rate.

Can I share a prefilled link?

Yes—use price, down, tradeIn, tax, fees, apr, months, and extra query parameters.

Sources linked above include U.S. government materials (for example CFPB, FDIC, NCUA, BLS, IRS) where noted. Sample math uses only labeled Nestfigure assumptions—not bank quotes, job offers, or personalized advice. Last reviewed: August 9, 2026.