Debt avalanche vs debt snowball: which pays off debt faster?
The avalanche sends extra money to the debt with the highest interest rate first, and the snowball sends it to the smallest balance first. With the same payment budget and fixed rates, the avalanche costs the least interest, while the snowball gives quick wins.
Free, no account. Checked October 13, 2026.
How each method works
Both methods start the same way. You pay the minimum on every debt, then send all extra money to one target debt.
In the snowball, the target is the smallest balance. In the avalanche, it is the highest interest rate. When a target is paid off, its payment moves to the next one.
When the two methods agree
They choose the same order when the smallest balance also has the highest rate. With $500 at 24%, $2,000 at 18% and $5,000 at 12%, both methods go $500, then $2,000, then $5,000. They split when the order differs. If a $500 debt charges 8% and a $2,000 debt charges 18%, the snowball clears the $500 first and the avalanche goes after the 18% debt.
A hybrid, and what to include
A hybrid clears a small debt or two first, then switches to the highest rates. Which method fits depends on your balances, your rates and what keeps you paying.
Put every debt on the list, including buy now, pay later plans. Late fees vary by lender, and several plans at once can be hard to track.
Why minimum payments alone cost more
A written plan that sends extra money to one debt at a time usually pays debt off faster than minimum payments alone. A $3,000 balance at 22% APR with a fixed $90 payment takes 52 months and costs about $1,679 in interest.
Consolidation is a separate option. Balance transfers often charge a fee, and the 0% rate ends after a set period, so compare the total cost.
A worked example
Sample, not your numbers
Three debts and $400 a month
Sample numbers, not yours. Card A is $1,000 at 12% with a $25 minimum. Card B is $4,000 at 24% with an $80 minimum. A loan is $6,000 at 7% with a $120 minimum. You can pay $400 a month in total, so $175 goes above the minimums. Interest is charged monthly at the APR divided by 12.
- Minimums only (fixed payments)
- 81 months, about $7,002 interest
- Snowball (A, then B, then loan)
- 33 months, about $1,989 interest
- Avalanche (B, then A, then loan)
- 32 months, about $1,800 interest
- Avalanche saves
- about $189 and 1 month
Both plans beat the minimums by a wide margin. The avalanche edge here is $189 because the largest balance also has the highest rate. A bigger rate gap widens it.
Run your own numbers
Enter your own balances, rates and payment to compare snowball and avalanche.
Common questions
Which method should I pick?
The avalanche costs the least interest when payments and rates stay fixed. The snowball clears accounts sooner. Pick based on the numbers and on which plan you will keep following.
Should buy now, pay later plans be on the list?
Yes. A pay-in-4 plan is often interest-free, but late fees and autopay rules vary by lender, and several plans can come due in the same week.
What if my minimum payments change?
Card minimums often shrink as the balance does, which stretches payoff longer. A fixed payment shows the real timeline, and the lab lets you set one.
Go further in the course
Chapters 1 to 3 are free, no card needed. Chapter 3 helps you find the extra money to send to a target debt.
Sources
Figures checked on October 13, 2026. The example assumes fixed rates, fixed payments and no new borrowing. The numbers are simulated from the sample debts and rounded, and they are not what your debts will do.
Education, not financial, tax or legal advice. The example uses sample numbers, and your own situation will differ.