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How to Calculate Debt Avalanche

What is Debt Avalanche?

The debt avalanche method targets the highest-interest debt first to minimise total interest paid. Mathematically, it is the optimal strategy — it always results in the least total interest and the fastest time to debt freedom compared to any other fixed-payment strategy.

Step-by-Step Guide

  1. 1List all debts from highest interest rate to lowest
  2. 2Pay minimum payments on all debts each month
  3. 3Put all extra money toward the highest-rate debt
  4. 4When cleared, roll its full payment to the next highest-rate debt
  5. 5The "avalanche" of freed payments accelerates repayment

Worked Examples

Input
39.9% overdraft + 21.9% credit card + 9.9% loan, +£100 extra
Result
Target overdraft first despite it being smaller
Eliminates most expensive debt per pound paid

Frequently Asked Questions

What is Debt Avalanche?

The debt avalanche method targets the highest-interest debt first to minimise total interest paid. Mathematically, it is the optimal strategy — it always results in the least total interest and the fastest time to debt freedom compared to any other fixed-payment strategy

How accurate is the Debt Avalanche calculator?

The calculator uses the standard published formula for debt avalanche. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.

What units does the Debt Avalanche calculator use?

This calculator works with inches, watts. You can enter values in the units shown — the calculator handles all conversions internally.

What formula does the Debt Avalanche calculator use?

The calculator applies the standard formula for this type of calculation. See the 'How It Works' steps above for the detailed formula breakdown.

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