How it works
Both methods keep your total monthly outlay fixed. You pay every minimum, then throw everything spare at one debt. When that debt clears, its payment does not go back into your spending — it rolls onto the next target, so the amount attacking your debt grows each time one falls. That rolling payment is the mechanism; the only question is the order.
Avalanche is mathematically optimal: targeting the highest rate first always produces the least total interest and never a later finish date. Snowball targets the smallest balance, which costs more but delivers a visible win sooner. The honest answer is that the better method is whichever one you will actually follow — a snowball completed beats an avalanche abandoned.
Monthly outlay = Sum of all minimum payments + Extra payment (held constant until every debt clears)
- Interest accrues each month on each outstanding balance at its own rate
- Every debt receives its minimum payment; everything left over goes to one target debt
- Avalanche targets the highest interest rate; snowball targets the smallest balance
- When a debt clears, its minimum rolls into the next target — this is what makes either method work
- List every debt with its real rateCredit cards are typically 36–42% a year, personal loans 12–18%, car loans 9–11%, home loans 8–9%. The rate is what decides the avalanche order.
- Find your minimum totalAdd up every minimum payment. This is the floor your budget must cover every month regardless.
- Decide the extraAnything above the minimums is what actually clears the debt. Even ₹2,000 a month changes the timeline noticeably.
- Pick a method and commitCompare both results below. If the interest difference is small, take the snowball for the motivation.
- Never reduce the outlayWhen a debt clears, redirect its payment to the next one. Absorbing it back into spending is what turns a two-year plan into a five-year one.
A worked example
Suppose you owe ₹1,20,000 on a credit card at 42%, ₹3,00,000 on a personal loan at 14% and ₹4,50,000 on a car loan at 9.5%, with minimums of ₹6,000, ₹8,000 and ₹11,000. Adding ₹5,000 makes a fixed monthly outlay of ₹30,000.
The avalanche clears the credit card first, because 42% is where every rupee of interest is being generated. The snowball happens to start there too, since it is also the smallest balance — but change the card balance to ₹5,00,000 and the two methods diverge sharply, with the avalanche saving considerably more.
Common mistakes
- Paying a little extra on every debt at once instead of concentrating on one
- Following the snowball when a very high-rate credit card is also the largest balance
- Spending each freed-up minimum payment rather than rolling it into the next debt
- Making only the minimum on a credit card, where the balance can barely fall at 42%
- Taking a new loan to consolidate without cutting up the card that created the balance
Snowball against avalanche
| Avalanche | Snowball | |
|---|---|---|
| Order | Highest interest rate first | Smallest balance first |
| Total interest | Always the lowest possible | Higher, sometimes substantially |
| Time to debt-free | Same or shorter | Same or longer |
| First win | Can take a long time | Usually within a few months |
| Best when | Rates differ a lot, e.g. a credit card | You have stalled before and need momentum |
Frequently asked questions
Avalanche always costs less interest and never takes longer — it is mathematically optimal. Snowball clears individual debts sooner, which helps if motivation has been the obstacle. Compare both above; if the interest gap is small, take the psychological win.
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How BudgetAnalyzer helps
A payoff plan only works if the extra payment survives contact with the rest of your month. BudgetAnalyzer’s Lend & Borrow section tracks every outstanding loan balance, and the budget planner shows whether the extra payment actually fits — before you commit to it.