Q: What is the difference between the debt snowball and debt avalanche methods?
The snowball method pays off the smallest balance first regardless of interest rate, then rolls that payment into the next-smallest balance. The avalanche method pays off the highest interest rate first. Avalanche is mathematically optimal — it minimizes total interest — while snowball tends to build momentum faster through early wins.
Q: Which method saves more money?
Avalanche almost always saves more in total interest, since it eliminates your most expensive debt first. The gap is usually small when your balances and rates are similar, and larger when one debt carries a much higher rate than the others.
Q: Why would I choose snowball if it costs more?
Research on behavior change suggests quick, visible wins keep people motivated to stay on a payoff plan. If a slower first win with avalanche means you are more likely to quit partway through, snowball's early payoff can be worth the extra interest in practice.
Q: How is the payoff order calculated?
Each month, minimum payments are made on every debt, then any extra payment — plus the freed-up minimum payments from already-paid-off debts — is applied to a single target debt: the smallest balance for snowball, or the highest rate for avalanche. Once that debt hits zero, the next one in line becomes the target.
Q: Does this calculator account for interest compounding monthly?
Yes. Interest accrues on each debt's balance every month at rate ÷ 12, before that month's payments are applied — matching how most credit cards and personal loans compute interest.
Q: What if I only pay the minimums?
Set your extra monthly payment to 0 to see how long payoff takes and how much interest you pay with minimums alone. For high-rate debt like credit cards, this is often dramatically slower and more expensive than adding even a small extra payment.
Q: Can I add more than three debts?
Yes — use "Add Another Debt" to add as many as you need. The simulation recalculates the full payoff schedule for every debt you add.
Q: Does this work in currencies other than US dollars?
Yes. Balances, minimum payments, and extra payments can all be entered and displayed in US Dollar, Euro, British Pound, Indian Rupee, Australian Dollar, Canadian Dollar, Japanese Yen, UAE Dirham, or Singapore Dollar. Months to debt-free and interest-rate math are currency-independent, so the comparison stays valid regardless of which currency you pick.
