Debt Avalanche vs Snowball: Which Saves More?
If you owe money on a credit card, a personal loan and a car loan all at once, the question isn't just "how do I pay it off?" It's "which one first?" Two famous methods give different answers, and the difference can be thousands of rupees. I ran both on the same set of debts so you can see exactly how much.
If you only read one bit
- Avalanche means every spare rupee goes to the highest-interest debt first. Snowball means it goes to the smallest balance first.
- On the debts below, with ₹10,000 extra a month, avalanche saves ₹12,029 in interest and both finish in about the same time.
- Snowball isn't wrong. Its win is psychological: you clear a debt sooner, and that keeps some people going.
- In India the gap is bigger than in many countries, because credit card rates (30% to 45%) are so far above loan rates.
The two methods in plain words
Avalanche. Pay the minimum on every debt. Put everything extra on the one with the highest interest rate. When it's gone, roll its whole payment onto the next-highest rate, and so on. It's the cheapest method, because the expensive debt stops growing first.
Snowball. Pay the minimum on every debt. Put everything extra on the smallest balance, whatever its rate. When it's gone, roll that payment onto the next-smallest. It costs a little more, but you tick debts off the list sooner.
The debts I tested
| Debt | Balance | Interest rate | Minimum payment |
|---|---|---|---|
| Credit card | ₹1,50,000 | 40% | ₹6,000 |
| Personal loan | ₹60,000 | 14% | ₹3,000 |
| Car loan | ₹4,00,000 | 9.5% | ₹9,000 |
It's a realistic mix: one very expensive card, a mid-rate personal loan and a cheaper car loan. The card has the highest rate, and the personal loan has the smallest balance. That's exactly the setup where the two methods disagree about where to start.
What happens with different extra amounts
| Extra per month | Avalanche: time / interest | Snowball: time / interest | Avalanche saves |
|---|---|---|---|
| ₹0 | 4y 0m / ₹2,42,043 | 4y 0m / ₹2,42,043 | ₹0 |
| ₹5,000 | 2y 9m / ₹1,30,063 | 2y 9m / ₹1,45,052 | ₹14,989 |
| ₹10,000 | 2y 2m / ₹94,260 | 2y 2m / ₹1,06,289 | ₹12,029 |
| ₹20,000 | 1y 6m / ₹63,399 | 1y 6m / ₹71,084 | ₹7,685 |
With no extra money the two methods tie, because there's nothing to redirect. The gap opens up as soon as you add some, and it's widest at modest amounts: ₹14,989 at ₹5,000 extra, ₹12,029 at ₹10,000. At ₹20,000 you're clearing everything so fast that there's less interest left to save. The gap isn't dramatic compared with the total debt, but ₹12,029 is real money. It's more than a month's EMI on the car loan.
Where each method sends your money first
With ₹10,000 extra a month, here's the order each debt disappears:
- Avalanche: Credit card (1y 0m), Personal loan (1y 2m), Car loan (2y 2m)
- Snowball: Personal loan (5m), Credit card (1y 2m), Car loan (2y 2m)
Snowball clears the small personal loan first, which feels good. But meanwhile the 40% card keeps growing. Avalanche goes straight at the card, which saves more interest, but you wait longer for your first "debt cleared" moment.
Why the Indian rate gap makes avalanche stronger
Put ₹10,000 extra onto a card at 40% and you avoid about ₹4,000 a year in interest on it. Put the same ₹10,000 onto a 12% loan and you avoid about ₹1,200. Same money, same effort, more than three times the effect. Where rates are close together, the order barely matters and snowball costs you almost nothing. When they're far apart, as they usually are with cards, I'd go with avalanche.
When I'd pick snowball anyway
If you've tried and failed to stay motivated before, a quick win can be worth a few thousand rupees. If you have several tiny debts, clearing them also cuts the number of due dates you need to keep track of. The best plan is the one you'll stick with, and a plan you drop saves nothing. A sensible compromise is to clear one very small debt first and then switch to avalanche.
Run it on your own debts
Avalanche vs snowball
Enter up to three debts and an extra monthly amount. You'll see how long each method takes and how much interest each costs. Leave a balance at zero to skip a debt.
Before you pick a method
Whichever you choose, three small steps make it work:
- List every debt in one place: the balance, the rate, the minimum and the due date. Most people are surprised by the total, and by which debt is actually the most expensive.
- Set up automatic payments for every minimum. A missed minimum costs you a late fee and a mark on your credit report, and that undoes the effort.
- Stop adding to the card. Paying down a balance while spending on it again is like bailing out a boat with the tap still running.
If you can't even cover the minimums
This is a different problem, and a method won't fix it. Contact the lender before you miss a payment. Many will discuss a restructured plan, a longer tenure or a temporary reduction, though each has a cost, so ask for the total repayment in writing. A longer tenure lowers the payment but raises the total interest, so use it as a way through a tight patch and not as a long-term plan.
Questions people ask
Should I clear debts before investing?
Compare rates. Paying off a card at 40% is a guaranteed 40% return, which no investment can promise. For a cheap loan, investing alongside it can make sense once your emergency fund is in place.
What if a minimum payment is lower than the monthly interest?
Then that debt never shrinks unless you pay more. It's a sign you need to move extra money to it first, whichever method you use.
Does consolidating my debts into one loan help?
Sometimes. If the new rate is much lower than your card rate, yes. Check the fees and the total repayment, because a long tenure can cancel the benefit.
Do these results depend on the order of the minimums?
Only slightly. What matters most is the gap between the rates and how much extra you can add each month.
This article is for general information and education. It is not financial, tax or legal advice. Examples use illustrative round numbers and standard formulas. Your lender's actual rates, fees and rules will differ, so check your loan agreement or speak to a qualified adviser before making borrowing or investment decisions.
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