Avalanche vs. Snowball: Two Ways to Pay Down Balances

When you have balances on more than one card or account, one of the first questions is where to put any extra money. Two popular approaches, the avalanche and the snowball, offer simple rules for that choice. Neither is right for everyone, and both can work.

This guide explains how each method works, walks through an example with the numbers shown, and covers what to weigh when choosing.

The shared foundation

Both methods start the same way:

1. List every balance, its APR, and its minimum payment.
2. Decide on a fixed total amount you can put toward repayment each month.
3. Pay the minimum on every account, every month, so nothing falls behind.
4. Send whatever is left over to one target account.
5. When the target is paid off, roll its full payment into the next target.

That last step is what gives both methods their power. Each payoff frees up money that speeds up the next one. The only difference between the two is which account becomes the target.

How the avalanche works

The avalanche targets the account with the highest APR first, then the next highest, and so on. Balance size does not matter for the order.

Because the highest-rate balance grows the fastest, paying it down first reduces the total interest you pay over time. In most cases, the avalanche costs less overall than the snowball.

The tradeoff is that your highest-rate balance might also be a large one. It can take many months before you see a single account reach zero, which some people find discouraging.

How the snowball works

The snowball targets the smallest balance first, then the next smallest, regardless of APR.

Small balances get paid off quickly, which can bring a real sense of progress early on. Fewer accounts also means fewer due dates to track. For many people, those early wins make it easier to keep going.

The tradeoff is cost. If a larger balance carries a higher APR, it keeps building interest while you focus on smaller ones, so the snowball often costs somewhat more in total.

A side-by-side example

Suppose you have three card balances, totaling $10,200:

Account	Balance	APR	Minimum
Card A	$1,200	18%	$35
Card B	$3,000	24%	$90
Card C	$6,000	20%	$150

Minimums add up to $35 + $90 + $150 = $275. If your monthly repayment budget is $500, you have $500 − $275 = $225 extra to send to your target each month.

First-month interest on each card works out to:

• Card A: $1,200 × 0.18 ÷ 12 = $18
• Card B: $3,000 × 0.24 ÷ 12 = $60
• Card C: $6,000 × 0.20 ÷ 12 = $100

That is $18 + $60 + $100 = $178 in interest in month one, before any payoff progress.

Avalanche order (B, then C, then A): Card B, at 24%, gets the extra $225 first. Running the numbers month by month, Card B is paid off in month 11, Card C in month 24, and Card A in month 26. Total interest is about $2,405.

Snowball order (A, then B, then C): Card A, the smallest balance, gets the extra $225 first. Card A is paid off in month 5, Card B in month 14, and Card C in month 26. Total interest is about $2,495.

Both plans finish in 26 months in this example. The avalanche saves about $2,495 − $2,405 = $90 in interest. The snowball delivers its first paid-off account six months sooner, in month 5 instead of month 11.

Your own numbers will differ. The gap between the two methods tends to grow when APRs are far apart and shrink when they are similar.

How to choose

Some questions that can help:

• What motivates you? If seeing an account hit zero keeps you on track, the snowball’s early wins may matter more than the interest difference.
• How far apart are your APRs? A wide spread usually makes the avalanche’s savings larger.
• How many accounts are you juggling? Clearing small balances can simplify your monthly routine.
• Is any account close to its limit? Paying down a nearly maxed-out card can also lower its utilization, which is one part of your credit score.

Whichever you choose, the most important parts are paying every minimum on time and keeping the monthly total steady.

Keeping the plan going

A repayment plan only works if new charges do not refill the balances you are paying down. While you work through your list, it can help to pause using the cards you are targeting, or to use them only for expenses you can pay in full that month.

It is also worth checking in on your plan every few months. Balances, APRs, and your income can all change. If an APR goes up, the avalanche order may shift. If a month goes badly, paying the minimums keeps every account current, and you can pick the extra payments back up the next month.

Other things to weigh

Some people look at combining balances, balance transfer offers, or hardship programs from their card issuer. Each works differently and comes with its own fees, terms, and risks, such as transfer fees or a promotional rate that ends. Read the terms directly and carefully before deciding. A nonprofit credit counselor, such as an NFCC member agency, can also review your situation and explain options at low or no cost.

Be cautious of any company that asks for large upfront fees or promises a specific outcome.

Next steps

• Compare both orders with your own balances in the payoff calculator.
• See what each balance costs over time with the interest cost estimator.
• Turn your choice into a routine with how to build a repayment plan you can stick with.
• Browse more guides in the Debt Management section.