Avalanche minimizes expensive exposure
After minimums, the avalanche targets the highest APR. Under consistent assumptions it will usually minimize total interest.
Multi-debt repayment planner
Build a payoff order and keep freed payments working
Compare the interest-first avalanche with the balance-first snowball, add three kinds of extra payment, and inspect when each account reaches zero.
Plan with context
A payoff plan needs a priority rule and a fixed payment budget.
Minimums protect each account first. Extra cash then targets either the highest rate to reduce modeled interest or the smallest balance to create faster account closures.
Snowball creates early wins
The snowball targets the smallest balance regardless of rate. Faster account closures may make the plan easier to sustain even when modeled interest is higher.
Roll payments forward
Keeping the original total payment budget means every retired minimum becomes extra money for the next target rather than disappearing into spending.
Extra payments compound
A monthly addition, annual windfall, or one-time payment reduces principal and the future interest that principal would have generated.
Minimum-only plans can stall
If payments do not consistently exceed new interest and charges, balances may decline very slowly or not at all. The model flags a non-amortizing path.
Protect the plan from new balances
A payoff schedule assumes no new charges. A small emergency reserve and stopped card use can keep an unexpected expense from restarting the cycle.
Included
Six editable debts, balances, minimums, APRs, avalanche and snowball, fixed-budget rollover, three extra-payment types, minimum-only comparison, charts, payoff order, and ledgers.
Not included
New purchases, variable-rate changes, late fees, promotional expirations, collections, settlement, taxes, creditor-specific payment allocation, or credit-score effects.
Use it well
Use current statements, automate minimums on every account, direct extra money to one target, and confirm final payoff amounts with each creditor.