Stream-Lined Snowball Debt Elimination Calculator
A streamlined snowball keeps the motivating smallest-balance-first order while you funnel a steady extra payment in — clearing debts as efficiently as the method allows.
A worked example
Running this tool on current national benchmarks (Federal Reserve / Freddie Mac via FRED (St. Louis Fed)) — swap in your own numbers to see how the result moves.
- Debt 1 — balance
- $9,000
- Debt 1 — rate
- 22%
- Debt 1 — minimum payment
- $180
- Debt 2 — balance
- $4,000
- Debt 2 — rate
- 15%
- Debt 2 — minimum payment
- $90
- Debt 3 — balance
- $6,000
- Debt 3 — rate
- 8%
- Debt 3 — minimum payment
- $110
- Extra monthly payment
- $200
46 months · $7,174 total interest
- Total debt$19,000
- Total interest$7,174
- Interest saved vs minimums$7,922
The math behind it
This runs the same snowball engine: interest is added to each debt, every minimum is paid, and the entire remaining budget is funneled to the smallest balance. "Streamlined" simply means you commit one steady extra payment and let the method run — as each debt clears, its minimum rolls into the extra and onto the next-smallest target. The calculator plays that forward month by month to your debt-free date and total interest.
Assumptions & limits
- Smallest-balance-first ordering, identical to the standard snowball.
- One fixed extra payment is added on top of all minimums every month.
- Each rate is fixed and no new charges are added during payoff.
- Freed-up minimums roll forward automatically as debts clear.
- Your minimums plus the extra must exceed total monthly interest, or balances will not fall.
Common questions
How is a streamlined snowball different from a regular snowball?
The math is the same — smallest balance first, roll each freed payment forward. "Streamlined" just describes the discipline: you pick one steady extra amount and keep sending it, rather than varying what you pay month to month. It is a way of running the snowball, not a different strategy.
Should I raise the extra payment over time?
You do not have to — the roll-down already grows the amount hitting your target as each debt clears. But adding a raise, bonus, or tax refund to the extra shortens payoff further, because every added dollar goes straight to principal on the current target.
Does the order I enter my debts matter?
No. The engine sorts by balance internally and always attacks the smallest first, whatever order you type them in. What matters is entering each balance, rate, and minimum accurately.