Debt Payoff Planner
Avalanche vs snowball: find the fastest and cheapest way to become debt-free.
By the Numbers
~21%
Avg credit card APR
Federal Reserve, 2026
$39K
Avg student loan debt
Per borrower, 2025
Avalanche
Saves the most interest
Highest-rate first
Snowball
Best for motivation
Smallest balance first
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How It Works
Add your debts
Enter up to five debts with their balance, interest rate, and minimum payment.
Pick a strategy
Choose avalanche to save the most money or snowball to build momentum with quick wins.
Get your payoff plan
See your debt-free date, total interest paid, and a side-by-side comparison of both methods.
Avalanche vs snowball — a sample
$9,000 card @ 24%, $1,500 medical @ 0%, $15,000 loan @ 6%, with $300/mo extra.
| Method | Targets first | Total interest | Result |
|---|---|---|---|
| Avalanche | 24% credit card | Lower | Saves the most money |
| Snowball | $1,500 medical bill | Slightly higher | Fastest first win |
Exact figures update live in the calculator above as you edit your debts.
The Complete Guide to Debt Payoff Planner
A plan beats willpower Paying off debt without a plan feels like a treadmill. A structured strategy tells you exactly which debt to attack first and when you'll be free. This matters because debt is expensive: the **average credit card APR sat around 21%** in 2026, and the **average borrower carries about $39,000** in student loans. The two proven strategies are the **avalanche** and the **snowball**.
The shared foundation Both methods work the same way at the core: pay the **minimum on every debt** to stay current, then throw every spare dollar at one target. When that debt dies, you roll its whole payment onto the next — a "rolling payment" that grows as each balance disappears. The only difference is the order.
Avalanche: cheapest and fastest The avalanche targets the **highest interest rate first**, regardless of balance. It's mathematically optimal because high-rate debt is the most expensive to carry, so killing it first stops the most interest. With a 22% card and a 5% student loan, you crush the card first even if the loan is bigger. Best for people motivated by efficiency.
Snowball: momentum and wins The snowball targets the **smallest balance first**. It's not optimal on paper, but knocking out a debt quickly delivers an early win that keeps you going. Personal finance is as much behavior as math, and many people quit the avalanche because the biggest debt takes ages. If you need motivation, the snowball's small extra interest cost can be worth it.
How to choose If the interest difference between the two is small, take the snowball — the best plan is the one you finish. If a big high-rate debt sits next to a small low-rate one, the avalanche can save real money. This tool shows both the **interest saved** and **months saved** so you can decide with facts.
Accelerators and the finish line Every extra dollar above the minimums goes straight to principal. A **0% balance-transfer card** (watch the 3–5% fee) or a consolidation loan can lower your rate. When you're debt-free, redirect that entire payment into savings and investing — the engine that paid off debt now builds wealth.
How we calculate this
- Each month we accrue interest on every balance, apply minimum payments, then funnel your extra payment plus any freed-up minimums to the target debt.
- Avalanche orders targets by highest interest rate; snowball by smallest balance.
- We simulate month by month until every balance reaches zero to get the payoff date and total interest.
Official sources & data
Figures reviewed June 2026. Estimates only — not financial advice.
Frequently Asked Questions
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