The debt snowball is the most popular debt payoff method for one simple reason: it works because people stick with it.
About this calculator
The debt snowball is the most popular debt payoff method for one simple reason: it works because people stick with it. By attacking the smallest balance first while paying minimums on everything else, you knock out individual loans quickly. Each cleared loan frees up its minimum payment, which rolls into the next attack -- the snowball gets bigger and faster. The trade-off is that you may pay slightly more total interest than the mathematically optimal avalanche method.
The debt avalanche flips the priority: pay minimums on everything, then attack the loan with the highest APR first. This minimises total interest paid and is mathematically optimal. The downside is psychological -- if your highest-APR loan is also your largest balance, it can take many months before you see your first 'win'. Studies and behavioural finance research consistently show that more people complete the snowball plan than the avalanche plan, even though avalanche saves more money on paper.
This calculator runs both simulations side by side, applies your extra monthly payment, and shows you exactly when you'll be debt free, how much interest you'll pay and the order in which loans clear. Combine this with the [[debt-to-income]] calculator to monitor monthly cash-flow strain, the [[loan-emi]] calculator to size new loans correctly, and the [[refinance]] calculator if any of your high-APR debts can be replaced by cheaper credit. The single best debt-payoff move is usually a combination -- consolidate or refinance the most expensive debt, then snowball or avalanche the rest.
Common uses
- Mapping a 12-36 month plan to clear credit cards, personal loans and EMIs
- Comparing snowball vs avalanche on your real numbers (not generic blog claims)
- Seeing exactly how a 5,000-10,000 monthly windfall accelerates your timeline
- Showing your spouse or family the concrete payoff date for a shared budget
- Pre-step before consolidating multiple loans into a single lower-rate loan
Frequently asked questions
Snowball or avalanche -- which one should I pick?
Pick snowball if you
What is the minimum payment I should enter?
For credit cards, use the higher of your statement minimum (usually 5% of balance) or 5,000-10,000 -- statement minimums alone can stretch credit-card payoff beyond a decade. For loans, use the EMI from your loan schedule.
How is APR different from interest rate?
APR is the annualised rate inclusive of fees and the way interest is compounded. For most personal credit it equals or slightly exceeds the quoted interest rate. For credit cards, APR is the monthly rate × 12 -- a 3% monthly rate is 36% APR.
Should I stop investing while paying off debt?
Keep contributing at least up to any employer EPF match -- that
What happens if I miss an extra payment one month?
The plan extends slightly but stays effective. Re-enter your current balances each quarter and re-run the calculator -- the plan adapts to your actual progress. Consistency beats perfection.