Home Finances
Debt snowball vs avalanche: which pays off faster
Two popular ways to pay off several debts. One saves more money, the other keeps you motivated. Here is what the math actually shows.
You have three or four balances, a little extra money each month and one question: which one first?
There are two classic answers. They use the same money and the same discipline. They just point it at a different target.
The two methods in one minute
Debt snowball: list debts from the smallest balance to the largest. Pay the minimum on all of them and put every extra dollar on the smallest. When it is gone, roll its payment into the next one.
Debt avalanche: same idea, but list debts from the highest interest rate to the lowest. Extra money goes to the most expensive debt first.
Card rates are high enough that the order matters. The Federal Reserve G.19 release tracks the average interest rate on credit card plans, and the CFPB explains how card interest is charged on balances you carry.
Calculator: what your credit card debt really costs
Revolving balances carry some of the highest rates around. See where the debt is heading.
If your monthly payment is smaller than the monthly interest, the debt grows even while you pay. That is the sign that renegotiating stopped being an option and became necessary.
A real example with numbers
Say you have three cards and can pay $400 a month in total:
- Store card: $600 at 19% APR, minimum $25
- Card B: $2,500 at 29% APR, minimum $75
- Card C: $4,000 at 22% APR, minimum $100
With the snowballthe store card is gone in month 3you are debt-free in 23 months and pay about $1,722 in interest.
With the avalanchethe first card (Card B) is only gone in month 11but you are debt-free in 22 months and pay about $1,659 in interest.
The avalanche saves around $63 and one month here. The snowball gives you a paid-off card eight months sooner. Your own numbers will differ, so run them in the calculator below.
Which one should you pick?
If the rates on your debts are very different, the avalanche usually wins by more than in this example, and it is worth the patience.
If the rates are close, or you have tried to pay off debt before and gave up, the snowball is a good choice. The money difference is often small, and finishing is what matters.
Either way, the plan only works if the balances stop growing. Pause new charges on the cards you are paying off.
How to make either plan work
- List every debt with balance, rate and minimum payment.
- Decide the total you can pay every month and set it as automatic.
- Pick the order: smallest balance or highest rate.
- Every time a debt is paid off, move its whole payment to the next one.
- Check the plan every three months and adjust if your income changes.
If a lower rate is available, a balance transfer or consolidation can speed up either method. Compare the fees first.
Frequently asked questions
Which method saves more money?
The avalanche. Paying the highest interest rate first always costs the same or less interest than any other order, as long as you pay the same total each month.
Why do people choose the snowball then?
Because it clears a whole account early. That quick win keeps many people going, and a plan you actually stick to beats a plan you abandon.
Do I stop paying the other debts?
No. You keep paying the minimum on every debt and send all the extra money to one target at a time.
Does this work with a personal loan too?
Yes. Any debt with a balance, a rate and a minimum payment can go on the list.
Once you pick a method, see what each extra dollar does to one balance.