The Finance AlgorithmTFA

Debt Payoff Optimizer

Calculator

Find the fastest and cheapest strategy to pay off multiple debts - snowball, avalanche, or consolidation

Free to useNo data storedAI insightsUpdated: February 2026

Juggling multiple debts? This calculator compares three proven payoff strategies - Snowball (smallest first), Avalanche (highest rate first), and Consolidation - to show you which gets you debt-free fastest and saves the most money.

Enter Your Details

Enter Your Details

$

Balance of your first debt

%

Interest rate on first debt

$

Balance of your second debt

%

Interest rate on second debt

$

Balance of your third debt

%

Interest rate on third debt

$

Total amount you can put toward all debts each month

Real-World Examples

Mixed Debt Portfolio

Sarah has a $5,000 credit card at 21%, $8,000 car loan at 9%, and $2,000 store card at 25%.

Inputs:

debts:3 debts totaling $15,000budget:600
Avalanche saves $1,400 more than Snowball but takes 3 months longer to feel the first win.

Similar Size Debts

Mike has two credit cards: $4,000 at 19% and $4,500 at 22%.

Inputs:

debts:2 debts totaling $8,500budget:400
With similar balances, Avalanche is clearly better - saves $380 and same emotional wins.

Frequently Asked Questions

Glossary

Snowball Method
Pay off smallest debt first for quick wins, then roll that payment to the next smallest.
Avalanche Method
Pay off highest interest rate debt first to minimize total interest paid.
Debt Stacking
Taking the payment from a paid-off debt and adding it to the next target debt.

Disclaimer: This calculator provides estimates only and should not be relied upon for financial decisions. Interest rates, fees, and policies change frequently. Always verify information with lenders directly. This is general information, not personal financial advice. Consider seeking advice from a licensed mortgage broker or financial advisor.

Last updated: February 2026

How to Use
  1. Enter each debt's balance and interest rate
  2. Add up to 3 debts for comparison
  3. Set your total monthly debt repayment budget
  4. See which strategy works best for your situation
  5. Get a personalized payoff timeline
Key Information
  • Avalanche method saves the most money mathematically
  • Snowball method provides psychological wins that keep you motivated
  • Consolidation simplifies payments and can reduce overall rate
  • Your success depends on sticking to the plan consistently
Pro Tips
  • If motivation is your challenge, Snowball's quick wins keep you going
  • If you're disciplined and want maximum savings, choose Avalanche
  • Increase your monthly budget even by $50-100 for dramatic time savings
  • Automate payments so you never miss one and stay on track
Avoid These Mistakes
  • Spreading extra payments equally across all debts instead of targeting one
  • Closing accounts after payoff which can hurt credit utilization
  • Not adjusting strategy when rates change or windfalls arrive
  • Forgetting to account for minimum payment requirements on each debt
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