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The debt snowball and debt avalanche are two ways to organize extra debt payments after making required minimum payments. The snowball targets the smallest balance first. The avalanche targets the highest interest rate first.
How the debt snowball works
- Make the required minimum payment on every debt.
- Put available extra money toward the smallest balance.
- When that debt is paid off, roll its payment into the next-smallest balance.
- Repeat until the targeted debts are gone.
The CFPB describes this as a “start off small” strategy. Its advantage is visible progress: eliminating an account can provide motivation. Its drawback is that a larger high-rate balance may continue accumulating expensive interest.
How the debt avalanche works
- Make the required minimum payment on every debt.
- Put available extra money toward the debt with the highest interest rate.
- After paying it off, move to the next-highest rate.
- Repeat.
The CFPB notes that targeting the highest-rate debt first attacks the most expensive debt. Mathematically, this approach generally reduces total interest cost when balances, minimums, payment timing, and available extra cash are otherwise the same.
A simple example
Imagine three debts:
| Debt | Balance | Rate |
|---|---|---|
| A | $600 | 6% |
| B | $2,500 | 24% |
| C | $5,000 | 10% |
The snowball starts with Debt A because it has the smallest balance. The avalanche starts with Debt B because it has the highest rate. Snowball can eliminate one account quickly; avalanche attacks the most expensive interest first.
When snowball may fit better
Snowball can make sense when motivation and simplicity are the biggest barriers. If seeing an account disappear helps you stay consistent, the psychological benefit can be valuable even if the method costs somewhat more interest.
When avalanche may fit better
Avalanche is attractive when minimizing interest is the priority and you are comfortable waiting longer for the first account to be fully eliminated. It can be especially valuable when there is a large difference between your highest and lowest interest rates.
Before choosing either method
- Stay current on required payments where possible.
- Know whether any debt has a promotional rate that will expire.
- Check for prepayment penalties or unusual terms.
- Keep enough liquidity for essential expenses and emergencies.
- If you cannot make required payments, contact creditors or a qualified nonprofit counselor rather than assuming an accelerated payoff strategy is realistic.
What about consolidation?
A consolidation loan can simplify payments, but it is not automatically cheaper. Compare APR, fees, term length, and total cost. A lower monthly payment can result from stretching repayment over more years, which can increase total interest.
Use the math
EconomicHQ’s Debt Payoff Calculator can help you compare payoff assumptions. Enter the same debts and extra-payment amount under different strategies to see how interest and payoff time can change.
Sources & methodology
This article provides general education, not individualized debt, legal, or credit advice.
EconomicHQ standard
Sources, dates, and methodology matter.
EconomicHQ prioritizes primary sources for consequential financial and economic claims and identifies reporting periods for changing information. This article is educational and does not provide individualized financial, investment, tax, legal, or credit advice.