Snowball vs Avalanche Debt Planner
Compares the two standard strategies for paying off multiple debts — snowball (smallest balance first, for psychological momentum) and avalanche (highest interest rate first, for mathematically minimal total interest paid) — using your actual debts, balances, and rates, rather than the generic examples most explainers use.
Why comparing both matters: avalanche is objectively cheaper in total interest paid almost every time, but that doesn’t mean it’s the right choice for every person — snowball’s early wins (paying off a small balance completely, fast) often keep people motivated through a payoff plan that avalanche’s math-optimal-but-slower-feeling order doesn’t. Seeing the real dollar difference between the two, for your specific debts, makes that trade-off concrete instead of theoretical.
How to use it
- Enter each debt: balance, interest rate, and minimum monthly payment.
- Enter the total amount you can put toward debt each month (minimums plus any extra).
- The tool generates a payoff schedule under both strategies — snowball and avalanche — showing order of payoff, time to debt-free, and total interest paid for each.
- Compare the two side by side: total interest difference and time difference.
- Adjust your monthly payment amount to see how extra payments shorten either timeline.
Common situations this solves
- Deciding which order to pay off multiple credit cards or loans in
- Seeing the actual dollar cost difference between snowball and avalanche for your specific debts
- Building a month-by-month payoff schedule to follow rather than guessing at the order
- Testing how much faster debt-free happens with a specific extra monthly payment amount
- Explaining to a partner or advisor exactly why one strategy was chosen over the other
FAQ
Which strategy actually saves more money?
Avalanche (highest interest rate first) minimizes total interest paid mathematically, since it targets your most expensive debt first — the tool shows you exactly how much less interest avalanche costs compared to snowball for your specific numbers.
Then why would anyone choose snowball if it costs more?
Snowball orders debts by smallest balance first regardless of interest rate, which means faster complete payoffs early on — for many people, that early momentum and visible progress matters more for actually sticking with a payoff plan than the (often modest) extra interest cost.
How much does the interest difference usually amount to?
It varies widely based on your specific balances and rate spread — a small rate difference across similar-sized debts might mean a small gap; a large high-interest balance sitting behind several small low-interest ones can mean a substantial difference. The tool calculates your exact numbers rather than a generic estimate.
Does adding extra monthly payment change which strategy is faster?
Extra payment shortens the timeline under both strategies, but the relative order of debt payoff and the total interest gap between the two strategies stays governed by the same logic — more extra payment just compresses the whole schedule.
Can I include debts with different payment frequencies or types, like a mix of credit cards and a personal loan?
Yes, enter each debt with its own balance, rate, and minimum payment regardless of type — the calculation treats each debt the same way structurally.