Personal Finance
Amortization Calculator
Period-by-period payment schedule with principal, interest, balance, and CSV download.
Free to use — no sign-up or login.
Payment per period
Total paid
Total interest
Amortization schedule
| # | Date | Payment | Principal | Extra | Interest | Balance |
|---|---|---|---|---|---|---|
This free Amortization Calculator covers Period-by-period payment schedule with principal, interest, balance, and CSV download.
Amortization steadily reduces principal with each payment. Related personal finance tools sit beside How it works, with no account required.
Using the Amortization Calculator
Period-by-period payment schedule with principal, interest, balance, and CSV download. Typical inputs are Loan amount ($), Annual rate (%), Term (years) and Payments per year. How it works beside the form states the identity the Amortization Calculator applies.
Worked example
Using the same $20,000, 6.5%, 5-year monthly loan as the loan calculator, each row of the schedule applies interest to the current balance, then allocates the rest of the ~$391 payment to principal. Early payments are mostly interest; later payments are mostly principal.
FAQ
Why does interest fall each period?
Interest is charged on the remaining balance. As principal declines, the interest portion of the fixed payment shrinks.
Assumptions and limitations
Personal finance figures are illustrative. Taxes, insurance, fees, and lender overlays are omitted unless a field names them. This is not financial advice.
Assumes a fixed rate and no prepayments. CSV export is a convenience dump of the same schedule.