Loan & Auto Calculator
Find the monthly payment and total interest on any loan — or switch to auto mode for sales tax, fees, and trade-in.
| Year | Remaining balance | Interest paid |
|---|---|---|
| 2026 | $25,000 | $0 |
| 2027 | $20,718 | $1,730 |
| 2028 | $16,104 | $3,127 |
| 2029 | $11,132 | $4,166 |
| 2030 | $5,774 | $4,820 |
| 2031 | $0 | $5,057 |
A $30,000 loan at 7.5% over 5 years costs $601 a month, and you repay $36,068 in total — $6,068 of it interest.
Fixed rate, equal payments, no fees or prepayment. Interest is front-loaded: early payments go mostly to interest, so paying extra at the start saves the most.
How loan payments work
A loan is amortized: each payment covers that month's interest first, and the rest reduces the balance. Because the balance shrinks over time, later payments put more toward principal — the chart above shows the crossover.
In auto mode, the amount financed is your vehicle price plus sales tax and fees, minus your down payment and trade-in. Sales tax is applied to the price after the trade-in credit in most states.
Common questions
How is my monthly loan payment calculated?
Does auto mode include sales tax and fees?
Should I make a bigger down payment?
What loan term should I choose?
How we calculate this
Standard fixed-rate amortization; auto mode applies sales tax to price minus trade-in. Estimates only — not financial advice.
Estimates are for general informational purposes only. Actual loan terms, taxes, and fees vary by lender and state. Not financial advice.