Updated · Built and checked by the PlinzoTools team, formulas tested against published sources
Plan a debt payoff order that tackles the smallest balance first, for early psychological wins.
| Debt | Balance ($) | Rate (%) | Min Payment ($) |
|---|---|---|---|
| #1 | |||
| #2 | |||
| #3 | |||
| #4 |
The debt snowball method pays off debts in order from smallest balance to largest, regardless of interest rate, applying any extra payment to the smallest debt while making minimum payments on the rest. Once the smallest debt is paid off, its freed-up minimum payment rolls into the next smallest, building momentum -- the appeal is psychological: seeing a balance actually hit zero quickly can build motivation to keep going, even if it isn't the mathematically fastest method.
Enter up to 4 debts (balance, interest rate, and minimum payment for each) plus any extra amount you can put toward debt each month. Leave unused rows at zero.
Debts are sorted from smallest to largest balance. Each month, minimum payments are made on all debts, and any extra payment goes entirely toward the smallest remaining balance. Once a debt reaches zero, its minimum payment amount joins the extra payment pool for the next smallest debt.
The Debt Avalanche Calculator instead orders debts by highest interest rate first, which mathematically minimizes total interest paid -- but some people find the snowball method's quick early wins more motivating to actually stick with. Compare both to decide which fits you better.
Imagine three hypothetical debts: a $500 balance with a $25 minimum, a $2,000 balance with a $60 minimum, and a $6,000 balance with a $150 minimum, and $100 of extra money each month. In the first stage, $125 a month goes to the smallest debt, with minimums going to the others. When it is paid off, its $25 minimum joins the $100 extra, so $125 plus the next debt's minimum is now aimed at the second balance. The snowball grows because each cleared debt frees up its minimum. The calculator performs this month by month so you can see the exact timeline.
The main outputs to look at are the number of months until all debts are cleared and the total interest paid. Compare these against the Debt Avalanche Calculator using the same inputs. If the snowball timeline is only slightly longer or costlier, the motivation benefit may justify it. If the difference is large, such as when the largest balance also has a much higher rate, avalanche may be the better fit financially. Your own temperament matters too, so choose the approach you will stick with.
The tool handles up to four debts and uses fixed rates and minimums. Real minimum payments on credit cards can change as balances fall, and promotional rates may end. For complex situations, or if you cannot cover your minimums, consider speaking with a nonprofit credit counselor.
Not necessarily in pure interest-cost terms -- the avalanche method (highest rate first) typically results in less total interest paid, but the snowball method's early wins can help some people stay motivated and consistent.
It gets added to your extra payment pool and rolled into the next smallest remaining debt, which is where the "snowball" effect comes from -- your available extra payment grows as each debt is eliminated.
Up to four. If you have more, include the ones you want to prioritize, or combine similar small debts in a separate run.
Usually not. Snowball is typically applied to consumer debts, and mortgages have lower rates and long terms.
You can set it to zero and see how the minimums alone play out. Even a small extra amount can change the result.
Reference: Consumer Financial Protection Bureau