Personal Finance

Amortization Calculator

Period-by-period payment schedule with principal, interest, balance, and CSV download.

Payment per period

Total paid

Total interest

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.

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