The Core Trade-Off
Avalanche attacks the balance costing you the most per dollar—usually the highest-APR credit card. Snowball clears the smallest balance first so you see accounts hit $0 and roll that payment into the next target. CFPB guidance notes both are valid; adherence drives outcomes.
Run Both Before You Choose
Plug your real balances into our Snowball Simulator and Avalanche Calculator. If the interest gap is under $500 but snowball finishes 4 months sooner in your model, snowball may be the rational choice.