| Month | Remaining Balance | Interest Paid | Principal Paid | Cumulative Paid |
|---|
Calculate your debt payoff timeline, estimated debt-free date, total interest, and repayment schedule using fixed monthly payments and optional extra payments.
| Month | Remaining Balance | Interest Paid | Principal Paid | Cumulative Paid |
|---|
This calculator simulates month by month debt repayment using your balances, APRs, minimum payments, and any extra monthly payment. It estimates how long repayment may take, how much interest may be paid, and when you may become debt-free under the selected strategy.
| Input | Effect |
|---|---|
| Balance | Raises the amount that must be repaid |
| APR | Drives monthly interest cost |
| Monthly payment | Determines how fast debt can shrink |
| Extra payment | Can reduce payoff time and total interest |
The avalanche strategy sends extra payment to the highest APR debt first, which usually reduces interest cost faster. The snowball strategy sends extra payment to the lowest balance first, which can close smaller accounts sooner.
Debt payoff can take much longer when APR is high or payments are only slightly above monthly interest. Even a moderate extra payment can materially change the debt-free date in some cases.