What is the Debt Avalanche Method?
The debt avalanche method is a debt repayment strategy where you pay off debts in order of highest to lowest interest rate. After making minimum payments on all debts, you put any extra money toward the debt with the highest interest rate. This approach minimizes the total interest you pay over time.
How the Debt Avalanche Works
- List all your debts with their balances, interest rates, and minimum payments
- Make minimum payments on all debts
- Put any extra money toward the debt with the highest interest rate
- Once that debt is paid off, roll that payment into the next highest-rate debt
- Repeat until all debts are paid off
Avalanche vs. Snowball Method
The debt snowball method pays off smallest balances first for psychological wins, while the avalanche method targets highest interest rates first for maximum savings. The avalanche method typically saves more money but may take longer to pay off your first debt.
Advantages of the Avalanche Method
- Saves the most money on interest over time
- Mathematically optimal debt payoff strategy
- Reduces total debt faster than minimum payments
- Works well for disciplined individuals focused on numbers
How to Use This Calculator
- Enter how much extra you can pay each month beyond minimums
- Add all your debts with their names, balances, APRs, and minimum payments
- Click "Calculate" to see your payoff schedule and interest savings
Helpful products for this plan
Tools that pair well with budgeting, forecasting, and money decisions.
Frequently Asked Questions
How accurate are the results?
The Debt Avalanche applies a standard formula to your inputs — accuracy depends on how precisely you measure those inputs. For planning and estimation, results are reliable. For high-stakes or professional decisions, cross-check the output with a domain expert or primary source.
What inputs have the biggest effect on the result?
In most financial calculations, the variables with the highest sensitivity are the rate (interest, return, or tax) and time. Try adjusting each by 10-20% to see which one moves the output most — that's where your energy in improving the input estimate is best spent.
How should I interpret the Debt Avalanche output?
The result is a calculated estimate based on the formula and your inputs. Compare it against the reference values or benchmarks shown on this page to understand whether your result is high, low, or typical. For decisions with real consequences, use the output as one data point alongside direct measurement and professional advice.
When should I use a different approach?
Use this calculator for quick, formula-based estimates. If your situation involves multiple interacting variables, time-varying inputs, or safety-critical decisions, consider a dedicated software tool, professional consultation, or direct measurement. Calculators are most reliable within their stated assumptions — check that your scenario matches those assumptions before relying on the output.