Debt Payoff Strategy Calculator

Snowball, popularized by Dave Ramsey, attacks the smallest balance first regardless of interest rate. You knock out small debts in two or three months, free their minimum into the snowball, and ride momentum to the next debt. Avalanche attacks the highest interest rate first regardless of balance, which always produces the lowest total interest cost. The trade-off is psychological vs mathematical: snowball gives you visible wins fast, avalanche saves money but the first debt may take much longer to retire.

Avalanche produces the lowest interest cost when payments and rates are otherwise the same. A 2012 study by David Gal and Blakeley McShane found that closing more accounts was associated with debt-program completion in a debt-settlement data set, but it did not prove that snowball is best for every borrower. Snowball can be a reasonable choice if quick account closures help you keep paying. This calculator recommends snowball only when avalanche saves $100 or less in modeled interest; otherwise it recommends avalanche.

There is no universal balance that makes a debt unmanageable. Look at the required payment, APR, total debt payments relative to income, and whether the balance is actually shrinking after each payment. A debt needs attention when required payments leave no room for essentials or savings, or when interest absorbs most of what you pay. Use this calculator to compare a realistic extra payment with the current schedule.

A 0% balance transfer card moves high-interest credit card debt to a new card with a 0% promotional APR, usually for 12 to 21 months. You pay a one-time transfer fee (typically 3% to 5% of the moved balance) and then every dollar of payment goes to principal during the promo window. The math works if you can clear the balance before the promo ends; if you cannot, the regular APR (often 20%+) snaps back on whatever is left. Use this calculator first to confirm you can realistically clear the debt inside the promo period at the payment amount you can actually sustain.

A consolidation loan replaces several high-rate debts with one fixed-rate personal loan, usually 6% to 20% APR over 2 to 7 years. The trade-offs: you get one predictable monthly payment and often a lower blended rate, but you also extend the timeline (which can mean more interest paid even at a lower rate) and reset the psychological clock. If your weighted-average APR across debts is above 18% and you qualify for a sub-12% consolidation loan, the math usually favors consolidation. If your debts are already at moderate rates, snowball or avalanche on the existing structure often costs less than the loan origination fee plus the longer term.