Skipping minimums
Avalanche does not mean ignoring other accounts. Missing minimum payments can create fees, penalty APRs, and credit harm.
Debt calculator
Debt Avalanche Calculator
Estimate a debt payoff order using the avalanche method: make minimum payments on all debts, send extra money to the highest APR debt first, then roll freed payment capacity into the next highest-rate balance.
Last reviewed: June 10, 2026
Calculate avalanche payoff order
Recommended payoff order—
Estimated payoff time—
Estimated total interest—
First target debt—
Total minimum payments—
Total monthly payment including extra—
Interest saved vs minimum-only—
Scenario comparison
Compare minimum-only payoff with the entered avalanche extra-payment plan.
Minimum-only payoff time—
Avalanche payoff time—
Interest saved estimate—
Starting balance and interest breakdown
This insight updates after calculation.
Starting balances—
Estimated interest—
Payoff schedule preview
Shows the first 24 monthly rows for the avalanche plan.
| Month | Target debt | Payment | Interest | Remaining balance |
|---|
How to read this result
The payoff order shows the highest-APR debts first. The estimate assumes the total monthly payment remains available after each debt is paid off, so former minimum payments roll toward the next target debt.
Formula and method explanation
The debt avalanche method sorts debts by APR descending. Each month, the model applies monthly interest, makes required minimum payments on every active debt, sends the extra available payment to the highest-APR remaining debt, and repeats until all debts are paid off. When one debt reaches zero, its minimum payment capacity rolls into the next highest-APR debt.
Worked example
Suppose Card A has a $3,000 balance at 24% APR with a $90 minimum, Card B has a $5,000 balance at 18% APR with a $125 minimum, and Loan C has a $2,000 balance at 9% APR with a $75 minimum. With an extra $200 per month, the avalanche method targets Card A first because it has the highest APR. After Card A is paid off, its payment capacity rolls to Card B, then Loan C.
Assumptions
- Monthly interest is applied before payment.
- Minimum payments are treated as fixed entered amounts.
- No new balances, late fees, annual fees, penalty APRs, promotional expirations, or settlement terms are added.
- Zero-balance debts are ignored in the payoff order.
Limitations
This avalanche debt method calculator is a simplified estimate. Actual payoff depends on issuer rules, compounding details, payment posting dates, minimum-payment recalculation, fees, new charges, balance-transfer terms, hardship programs, and whether the plan remains affordable.
Common mistakes
Forgetting payment rollover
The method works by keeping freed payment capacity in the plan instead of absorbing it into spending.
Adding new charges
New card spending can erase progress and make payoff timing less reliable than the model suggests.
Related calculators
Compare this multi-debt order with the debt payoff calculator, use the credit card payoff calculator for one card balance, and review promotional-rate options with the balance transfer calculator.
Related guides
Read Debt Snowball vs Avalanche for strategy tradeoffs and Credit Card Interest Explained for APR, daily balance, and payment timing context.
FAQ
What is a debt avalanche calculator?
It estimates a highest-APR payoff order by applying minimum payments to all debts and directing extra payment to the most expensive remaining debt first.
Is avalanche always better than snowball?
Not always. Avalanche may reduce interest in a simplified math comparison, while snowball may feel easier to follow for some households. The best plan is one that can be maintained safely.
Can this be used for credit card debt?
Yes. It can act as a credit card debt avalanche calculator when the debts entered are card balances, but actual statements may use issuer-specific interest and payment allocation rules.
What if a minimum payment is lower than monthly interest?
The calculator shows a warning because that debt may not decline under the simplified assumptions unless extra payment reaches it soon enough.
Before relying on this estimate
The result is educational and based only on the inputs shown. It is useful for comparing assumptions and understanding the avalanche debt method, but it is not financial advice, legal advice, tax advice, credit counseling, debt settlement advice, or a guarantee.
Before using a result for a real decision, compare it with official statements, card agreements, payoff letters, fee schedules, local rules, and qualified professional guidance where needed. See How We Calculate and the Disclaimer for more context.
Method and verification trail
- Method used: Debts are sorted by APR, minimums are applied on active balances, and extra payment is directed to the highest-APR target until all balances are cleared.
- Primary source type to verify: Credit card statements, loan statements, minimum-payment disclosures, payoff letters, and account terms that describe payment allocation.
- What to confirm in real documents: APR by account, whether minimums change as balances fall, payment posting rules, penalty APRs, and whether any balance-transfer or hardship terms change the payoff path.
- Scope limit: This page does not model issuer-specific compounding quirks, new charges, settlement offers, or multi-balance allocation edge cases.
For site-wide methodology, review How We Calculate. For sourcing and corrections standards, review Editorial Policy.