Debt Snowball vs Avalanche

Snowball vs avalanche at a glance

Both methods share everything else. You pay the minimum on every debt, put your extra money on one target, and roll each freed minimum into the next target. The monthly budget (starting minimums plus extra) stays fixed from the first month to the last.

The side-by-side below runs both methods on Example 2 further down this page: a store card, a high-rate Visa and a personal loan.

Example 1: when both methods pick the same order

Here are two credit cards and a car loan, with $300 a month extra:

Card 1 has the smallest balance and the highest rate. Card 2 is second on both counts, and the car loan is last on both. So the snowball and the avalanche build the same list, and the results match:

• Snowball: debt-free in 2 years, 4 months, with $2,718.28 in interest. First payoff in 8 months.
• Avalanche: debt-free in 2 years, 4 months, with $2,718.28 in interest. First payoff in 8 months.

If your list looks like this, with the smallest balance also carrying the highest rate, there’s nothing to choose. Pick either name and start.

Example 2: when the orders differ

Now a store card, a high-rate Visa and a personal loan, with $250 a month extra:

The snowball starts with the store card because it’s smallest. The avalanche starts with the Visa because 27.99% is the highest rate. Both leave the personal loan for last.

• Snowball: first payoff in 5 months, debt-free in 2 years, 5 months, $3,164.65 in interest.
• Avalanche: first payoff in 1 year, 4 months, debt-free in 2 years, 5 months, $2,997.43 in interest.

The avalanche’s interest is lower by $167.22. The gap in time to debt-free is 0 months. Because both plans spend the same fixed budget each month, the order moves the interest total more than the finish date. The snowball buys you an earlier first payoff, and the interest difference is its price.

That price depends on your list. It grows when a large balance carries your highest rate, because the snowball leaves that balance growing the longest. It shrinks when your rates are close together.

What the research says about choosing

The math favors the avalanche. Researchers studying debt repayment describe paying the highest rate first as what people should do to minimize cost (Amar and colleagues, Journal of Marketing Research, 2011). In their experiments, people paid off small debts first anyway, even when larger debts had higher rates, and ended up with more debt.

Behavior research gives the snowball its case. A 2012 study of 5,943 debt settlement clients found that closing a larger share of accounts predicted getting out of debt, regardless of the dollar size of those accounts (Gal and McShane, Journal of Marketing Research). A 2016 field study and three experiments found that concentrating payments on one account, especially a small one, raised people’s motivation to repay (Kettle and colleagues, Journal of Consumer Research). In lab experiments, people also finished a series of unpleasant tasks faster when the parts ran from smallest to largest (Brown and Lahey, Journal of Marketing Research, 2015).

Neither line of research says one method is right for everyone. The math tells you the cost. Your own history with payoff plans tells you whether that cost buys anything.

How to choose between snowball and avalanche

• Run both on your list. If the interest gap is small, the snowball’s early win costs little.
• Check whether the orders match. If your smallest debt has your highest rate, the choice doesn’t matter.
• Be honest about follow-through. If you’ve started and dropped a plan before, an early payoff may be worth the extra interest.
• Look for deadlines. A deferred-interest promo overrides both rules. The CFPB warns that missing the payoff deadline on those offers can mean owing all the interest back to the purchase date.

Custom order and hybrid approaches

Neither method has to be followed to the letter. A custom order lets you put debts in any sequence you choose, and the calculator runs the same fixed-budget rollover on it. Reasons people use one:

• A deferred-interest balance that needs to be gone before its deadline.
• A small debt owed to a family member or a medical office you want settled first.
• A balance that’s about to go to collections.

A hybrid is a custom order built from both rules. The most common version clears one or two tiny balances first for a quick win, then switches to highest rate first for the rest. Its interest cost depends on how many balances you clear before switching and how large they are. Treat it as a preference for motivation, not a way to beat the math. Enter it as a custom order and compare it against both pure methods before you commit.

Minimums only is the fourth option in the calculator. It pays the same minimums with no extra and no rollover. On the second example that takes 9 years, 10 months and costs $12,134.88 in interest, which is why either payoff method beats standing still.

For a deeper look at each method, read the debt snowball method and debt avalanche method guides, or try the debt snowball calculator and debt avalanche calculator on their own.

FAQ

Is the debt snowball or avalanche better?

The avalanche usually pays less total interest because it attacks the highest rate first. The snowball usually gets your first debt paid off sooner. If your smallest debt has your highest rate, both give the same result. Run both on your own debts and see how large the interest gap is before choosing.

Which is faster, snowball or avalanche?

With the same monthly budget, finish dates tend to be close, because the same total goes to your debts every month. In our second example the gap is 0 months. The bigger differences are total interest and the timing of your first payoff, where the snowball usually wins.

Does the avalanche method always save money?

Not always, and not always by much. When your smallest balance has the highest rate, both methods pick the same order and cost the same. When a larger balance carries a higher rate, the avalanche usually pays less interest. The size of the saving depends on your balances, rates and extra payment.

Can I switch from snowball to avalanche partway through?

Yes. Your budget and minimums stay the same; only the target changes. Many people clear one small balance first for momentum, then switch to highest rate first. Enter that sequence as a custom order in the calculator to see what the switch costs or saves against each pure method.

Should I use snowball or avalanche for credit card debt?

The same comparison applies. List each card with its balance, minimum and regular APR, not a temporary promo rate. If your smallest card also has the highest rate, the methods agree. If not, compare the interest gap in the calculator. Check promo deadlines first, since deferred interest can override both rules.

Does Dave Ramsey recommend snowball or avalanche?

Ramsey recommends the debt snowball, listing debts smallest to largest regardless of interest rate. Ramsey Solutions argues that the quick wins keep people motivated and that behavior matters more than math. It’s Baby Step 2 in Ramsey’s plan, and it excludes the mortgage from the list.