Debt Snowball vs Avalanche: Which Payoff Method Is Best?

In the debt snowball vs avalanche choice, the only difference is the order. The snowball pays the smallest balance first for quick wins, and the avalanche pays the highest interest rate first to pay less interest. On the four debts below, both finish in 28 months, the avalanche costs $327 less in interest, and the snowball clears its first debt nine months sooner.

Here is the full comparison, how the gap changes with a bigger or smaller payment, a hybrid order that splits the difference, and a table to help you choose.

Debt snowball vs avalanche side by side

The example uses four debts: a $600 medical bill at 0% ($50 minimum), a $2,400 personal loan at 13.5% ($85), a $4,800 credit card at 24.9% ($120) and a $7,500 car loan at 7.9% ($190). Both plans pay a fixed $645 a month, the $445 of minimums plus $200 extra. Interest is charged monthly as balance × APR ÷ 12, rates stay fixed and there are no new charges. These are the same debts as the calculator on our debt snowball spreadsheet page.

	Snowball	Avalanche
Order	Medical bill, personal loan, credit card, car loan	Credit card, personal loan, car loan, medical bill
First debt paid off	Month 3	Month 12
Debts paid off after 12 months	2	1
Total still owed after 12 months	$9,408	$9,241
Interest paid in the first 12 months	$1,848	$1,681
Credit card paid off	Month 21	Month 18
Debt-free	Month 28	Month 28
Total interest	$2,649	$2,322
Total paid	$17,949	$17,622

The snowball wins on visible progress: one debt gone in 3 months and two gone by month 10. The avalanche wins on money, and it owes less in total than the snowball every month from month 2 until the end. For the month-by-month schedules behind these numbers, see the debt snowball method and debt avalanche method guides.

Why both finish in the same month

With a fixed $645 a month, the finish date depends on how much you owe in total, interest included. Here the $327 interest gap is smaller than one month’s payment, so it shows up only in the final month: the avalanche’s last payment is $207 and the snowball’s is $534. Same month, different size of the last payment. When the gap grows larger than a month’s payment, the avalanche finishes earlier, as the next table shows.

How the payment amount changes the gap

Here are the same four debts and the same two methods with different extra payments. In every row, freed-up minimums still roll to the next debt.

Extra per month	Total per month	Snowball: months, interest	Avalanche: months, interest	Avalanche saves	First debt gone (snowball, avalanche)
$0	$445	46, $4,951	46, $4,837	$114	Month 12, month 12
$100	$545	35, $3,431	34, $3,081	$350	Month 4, month 12
$200	$645	28, $2,649	28, $2,322	$327	Month 3, month 12
$300	$745	24, $2,173	24, $1,882	$291	Month 2, month 12
$500	$945	18, $1,613	18, $1,382	$231	Month 2, month 9

Three things stand out:

1. The size of the payment matters more than the order. The snowball with $300 extra costs $2,173 in interest, less than the avalanche with $200 extra, and finishes four months sooner.
2. The gap peaks and then shrinks. With no extra, there is little money to direct, so the order barely matters. As the payment grows past $100 extra, every debt clears faster and there is less time for the order to cost anything.
3. The snowball’s first win comes fast at any extra. With even $100 extra, the medical bill is gone in month 4. With the avalanche, the first debt to go is that same bill in month 12, cleared by its own minimum, until the extra reaches $500 and the card itself is gone in month 9.

A hybrid debt payoff method

You do not have to pick one rule for the whole plan. A custom order can take the quick win from the snowball and most of the savings from the avalanche. Same debts, same $645 a month:

Order	First debt gone	Credit card paid off	Debt-free	Total interest	Compared with avalanche
Snowball	Month 3	Month 21	Month 28	$2,649	$327 more
Avalanche	Month 12	Month 18	Month 28	$2,322	Lowest
Hybrid: medical bill first, then highest rate	Month 3	Month 18	Month 28	$2,405	$83 more
Car loan first, then highest rate	Month 12	Month 29	Month 29	$3,325	$1,003 more

The hybrid clears a debt in month 3 and still pays off the card in month 18, for $82 more than the pure avalanche. The last row shows what an order chosen for another reason can cost, such as wanting to own the car outright first: $1,003 more interest and an extra month, because the 24.9% card waits while the 7.9% loan gets the extra money.

A simple hybrid rule is to clear any debt you can finish within about three months, then switch to the highest rate. The calculator on the template page compares only the pure snowball and avalanche, but the debt calculator tab in our budget spreadsheet also takes a custom order, so you can test a hybrid on your real numbers.

Which debt payoff method is best for you

Your situation	Method that usually fits	Why
Your smallest debt also has the highest rate	Either	Both pick the same order
You have quit a payoff plan before	Snowball or hybrid	Early wins keep you going
Your highest rate sits on your largest balance	Avalanche	This is where the interest gap is biggest
Your rates are within a few points of each other	Snowball	The interest difference is small
Several tiny balances clutter your month	Hybrid	Clear them first, then go by rate
You and a partner disagree	Hybrid	A quick win for one, the savings for the other
You can find more money each month	Either, with the bigger payment	The payment size beats the order

If two rows fit, the one about behavior usually wins. A plan that saves $300 on paper saves nothing if you stop in month 8.

Other debt payoff strategies

The snowball and avalanche are ordering rules. A few other moves change the numbers themselves:

• Raise the payment. As the table above shows, an extra $100 a month is worth more than the choice of method. A zero-based budget gives every dollar a job, which often turns up that $100.
• Stop new charges. Every new purchase on a card in the plan pushes the date back. Our guide on how to budget with credit cards shows how to keep everyday card spending paid in full.
• Look at the rates themselves. Balance transfers and consolidation loans can lower a rate, but they come with fees, promotional periods and qualification terms. Review them with a nonprofit credit counselor or another qualified professional before you commit, and if you use one, re-rank your list on the new rates.

Before you choose, run your own debts through both orders and one hybrid. If the interest gap is small next to your monthly payment, pick the order you will actually follow to the end. If it is large, the avalanche or a hybrid is worth the patience.