Assumptions
- The strategy budget equals starting minimum payments plus the Shared Extra Payment.
- APRs and required payments remain constant during the estimate.
- Paid debt minimums remain available for later active debts.
Debt snowball calculator
Calculate your debt snowball payoff order
Debt Snowball directs available extra money to the smallest remaining balance while maintaining required payments on other debts. Enter the debts in your portfolio to calculate the actual payoff order and finish date.
Private by design
Your financial values stay in this browser.
No account required
No signup, bank connection, or credit pull.
Deterministic math
The same inputs produce the same estimate.
Calculate locally
Build your Debt Snowball
Start with up to three or more debts, then add any Shared Extra Payment available above all required minimums.
Debt snowball calculator
Build your snowball payoff plan
Start with three debts. The snowball targets the smallest remaining balance first.
Understand the output
Your Debt Snowball timeline
Results prioritize the actual Payoff Order, First-Debt Milestone, portfolio payoff date, estimated interest, and monthly payment rollover.
Methodology and limits
How this calculator estimates payoff
Each month, all active debts receive required payments while remaining strategy money targets the smallest current balance.
When a debt reaches zero, excess payment can move to the next eligible debt in the same month. Balance ties keep original entry order.
Limitations
- The model does not evaluate affordability or changes to issuer minimum payments.
- Actual payoff order can differ if balances, rates, or payments change.
Methodology reviewed August 26, 2026. Results are educational planning estimates, not financial advice or lender payoff quotes.
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