How does the debt avalanche method work?

List your debts from highest APR to lowest. Pay minimums on everything, then put any extra toward the highest-interest debt. When it is paid off, add its payment to the next-highest APR debt. This method saves the most money in interest because you eliminate the most expensive debt first.

Which debt do I pay first with Avalanche?

With the Avalanche method, you always target the debt with the highest interest rate (APR) first, regardless of its balance size. This is what distinguishes it from the Snowball method, which targets the smallest balance first.

Does Avalanche always save more interest than Snowball?

Yes, the Avalanche method saves more in total interest than Snowball in virtually all scenarios because it targets the most expensive debt first. The difference can be hundreds or thousands of dollars depending on your balances and rates. However, the best method is the one you will stick with consistently.

How much extra should I pay toward my debts?

Any amount above your minimum payments helps. Even a small extra payment reduces your principal faster, which means less interest accrues over time. The calculator shows you exactly how different extra payment amounts affect your payoff timeline and total interest.

Does this calculator store my debt information?

No. All calculations run entirely in your browser. No data is sent to a server, stored, or tracked. Your financial information stays on your device.

Can I use this calculator for credit cards and loans?

Yes. The calculator works with any type of debt — credit cards, personal loans, auto loans, student loans, or any balance with a minimum monthly payment and interest rate. Add as many debts as you need to see your complete Avalanche payoff plan.

Debt Avalanche Calculator

Enter your debts to see the exact payoff order, timeline, and total interest using the Debt Avalanche method — where you target your highest-interest debt first to minimize total interest paid.

Avalanche Strategy

Pay off your highest-interest balance first to mathematically minimize total interest

This calculator provides estimates for informational purposes only and does not constitute financial advice. Actual results depend on your specific debt terms, fees, and any future interest rate changes. Consult a licensed financial advisor for guidance specific to your situation.

What Is the Debt Avalanche Method?

The Debt Avalanche method is a mathematically optimal debt payoff strategy. You make minimum payments on all your debts, then direct every extra dollar toward the debt with the highest interest rate (APR) — regardless of balance size.

Once that debt is paid off, you roll its entire payment into the next-highest APR debt. By eliminating the most expensive debt first, you minimize the total interest you pay over the life of your debts.

How the Avalanche Method Works

Step 1

List Your Debts

Write down all your debts and order them from highest APR to lowest. The balance amount does not matter — the Avalanche method focuses purely on the interest rate.

Step 2

Pay Minimums on Everything

Continue making the required minimum payment on every debt. This keeps all accounts in good standing while you focus your extra money strategically.

Step 3

Attack the Highest APR

Put every available extra dollar toward the debt with the highest interest rate. When it is paid off, you free up its minimum payment plus whatever extra you were paying.

Step 4

Roll It Forward

Take the full payment from the eliminated debt and add it to the next-highest APR debt. Your payment grows larger with each debt you pay off, accelerating your progress.

Why Choose the Avalanche Method?

The Avalanche method is the most efficient way to pay off debt from a purely financial standpoint. By targeting the highest interest rate first, you minimize the amount of interest that accrues each month. Over time, this adds up to significant savings compared to other payoff strategies.

The trade-off is that your highest-APR debt may also have a large balance, meaning it could take a while to pay off your first debt. This can feel discouraging compared to the Snowball method's quick wins. However, if you stay disciplined, Avalanche will save you the most money in total interest.

How to Use This Calculator

1. Enter each debt with its name, current balance, interest rate (APR), and minimum monthly payment.

2. Click "Add Another Debt" to include all the debts you want to pay off.

3. Enter an optional extra monthly payment — this is the amount above your minimums that will be directed toward the highest APR first.

4. Click "Calculate Avalanche Payoff" to see your results, including the exact order in which debts will be paid off.

Avalanche vs. Other Payoff Strategies

The two most popular debt payoff strategies are Avalanche and Snowball. Here is how they compare:

Debt Avalanche targets the highest interest rate first. This saves the most money in total interest, making it the mathematically optimal strategy. Use ourSnowball Calculatorto compare.

Debt Snowball targets the smallest balance first. You may pay more in total interest, but you get quick wins that build motivation. Try ourSnowball Calculatorto see the difference.

Both methods are mathematically valid strategies. The right choice depends on your personality and what keeps you motivated. Some people prefer the guaranteed savings of Avalanche; others prefer the psychological boost of Snowball's early victories.

Assumptions and Limitations

This calculator assumes fixed minimum payments and fixed APRs for the entire payoff period. It does not account for variable interest rates, fees, late payments, or irregular payment schedules. The calculation is a simulation for informational purposes only and does not constitute financial advice.

Frequently Asked Questions

What is the debt avalanche method?: The debt avalanche method is a debt payoff strategy where you make minimum payments on all debts, then direct any extra money toward the debt with the highest interest rate first. Once that debt is paid off, you roll its payment into the next-highest APR debt, minimizing total interest paid.
How does the debt avalanche method work?: List your debts from highest APR to lowest. Pay minimums on everything, then put any extra toward the highest-interest debt. When it is paid off, add its payment to the next-highest APR debt. This method saves the most money in interest.
Which debt do I pay first with Avalanche?: With the Avalanche method, you always target the debt with the highest interest rate (APR) first, regardless of its balance size. This is what distinguishes it from the Snowball method, which targets the smallest balance first.
Does Avalanche always save more interest than Snowball?: Yes, the Avalanche method saves more in total interest than Snowball in virtually all scenarios because it targets the most expensive debt first. The difference can be hundreds or thousands of dollars depending on your balances and rates. However, the best method is the one you will stick with consistently.
How much extra should I pay toward my debts?: Any amount above your minimum payments helps. Even a small extra payment reduces your principal faster, which means less interest accrues over time. The calculator shows you exactly how different extra payment amounts affect your payoff timeline and total interest.
Does this calculator store my debt information?: No. All calculations run entirely in your browser. No data is sent to a server, stored, or tracked. Your financial information stays on your device.
Can I use this calculator for credit cards and loans?: Yes. The calculator works with any type of debt — credit cards, personal loans, auto loans, student loans, or any balance with a minimum monthly payment and interest rate. Add as many debts as you need to see your complete Avalanche payoff plan.

Compare Avalanche vs. Snowball

Want to see how Avalanche compares to Snowball side by side? Try our full Debt Payoff Calculator for a direct comparison of both methods.

Open Debt Payoff Calculator