Loans & Debt
Debt Payoff: Avalanche vs. Snowball
Compare the two payoff strategies on time to debt-free and total interest paid.
| Debt | Balance | APR % | Min / mo | |
|---|---|---|---|---|
Avalanche
Highest interest rate first — cheapest overall.
Snowball
Smallest balance first — fastest wins.
What this means
Both plans clear $19,500 of debt. Avalanche (highest rate first) costs you about $450 less in interest — it's the cheaper path.
Snowball (smallest balance first) usually gets you your first paid-off debt sooner, and that win keeps a lot of people going. The best strategy is the one you'll actually stick with — either beats making minimums forever.
Build on it
These are estimates to help you think — not personalized legal, tax, or investment advice, and not a promise of any result.
This calculator takes your debts and one monthly payment budget and compares the two proven payoff strategies: avalanche (highest interest rate first) and snowball (smallest balance first). You'll see the debt-free date and the total interest paid for each.
Why it matters: high-interest debt compounds against you — every month it charges you for the privilege of owing it. Picking a strategy and pointing every spare dollar at it turns a pile of bills into a plan with an end date. And the best strategy is the one you'll stick with.
How to use it
- 1
List your debts
Enter each balance, interest rate, and minimum payment. Pull the real numbers from your statements — guessing low only cheats the plan.
- 2
Set your monthly budget
Enter the total you can put toward debt each month, minimums included. Even a small amount above the minimums changes the math.
- 3
Compare the two results
Look at the debt-free date and total interest for avalanche versus snowball. Avalanche usually saves more interest; snowball hands you early wins. Pick the one that matches how you stay motivated.
Behind the numbers
Avalanche: follow the math
Cover every minimum, then send every extra dollar at the debt with the highest interest rate. It's the cheapest route out on paper, because it starves your most expensive debt first.
Snowball: follow the momentum
Cover every minimum, then attack the smallest balance until it's gone — and roll that freed-up payment into the next debt. You may pay somewhat more interest, but early knockouts keep people in the fight.
Why minimum payments keep you stuck
Minimums are sized to keep the loan alive, not to set you free. On high-interest debt, much of a minimum payment goes to interest, so the balance barely moves. The extra you add is the part that goes straight to work for you.
The math behind it
Interest is charged on the balance you carry, so every extra dollar you pay goes straight against the principal and cancels all of that dollar's future interest. The order you attack debts changes the total cost: highest-rate-first (avalanche) pays the least interest; smallest-balance-first (snowball) gets you a win the fastest.
Worked example
A $3,000 card at 24% costs about $60 in interest in the first month alone (3,000 × 0.24 ÷ 12). Paying $100 extra doesn't just clear $100 of balance — it erases every future month of interest that $100 would have kept costing you.
The minimum-payment trap
Minimum payments are set to keep you paying interest for years. Anything above the minimum is the whole game — that's the money that actually shrinks the balance.
Common questions
Is avalanche or snowball better for paying off debt?
Avalanche minimizes total interest; snowball builds momentum with quick wins. If the two results in the calculator land close together, choose snowball for the motivation. If avalanche saves you serious money, let the number talk you into it.
Should I pay off debt or save money first?
Most people need both: a small starter cushion so a surprise bill doesn't land on a credit card, then a hard push at the high-interest debt. Interest on that debt usually outruns what savings can earn, so the debt deserves the bigger share.
Do extra payments really make a difference?
Yes. Every extra dollar goes straight at the balance instead of interest, which shrinks next month's interest charge too. Raise the monthly budget in the calculator and watch the debt-free date move up.
Go deeper
The calculator gives you a number. The Debt Management Brick teaches you what to do with it, in plain English. And if you’re not sure where to start, the free BrickScore checks your whole foundation in about 5 minutes.