How to Pay Off Debt Faster
Getting out of debt comes down to one principle: consistently paying more than the interest that accumulates each month. The larger the gap between your payment and the monthly interest charge, the faster your principal shrinks. Use the calculator above to see exactly how much each extra dollar accelerates your payoff date.
Debt Payoff Strategies
Avalanche Method (highest interest first)
List all your debts and direct any extra money to the one with the highest APR while paying minimums on the rest. Once that debt is gone, roll its payment into the next highest-rate debt. This approach is mathematically optimal — it minimizes the total interest you pay over the life of your debts.
Snowball Method (smallest balance first)
Target the debt with the smallest balance first regardless of interest rate. When it's paid off, roll that freed-up payment to the next smallest debt. You may pay slightly more interest overall, but the quick wins provide psychological momentum that many people find easier to sustain.
Extra Payments
Even a modest increase in your monthly payment has an outsized effect. On a $5,000 balance at 18% APR, raising your payment from $100 to $150 cuts the payoff time from 94 months to 50 months — and saves over $1,600 in interest. Use the Fixed Payment mode above to test different payment scenarios instantly.
Bi-Weekly Payments
Making half your monthly payment every two weeks results in 26 half-payments per year — the equivalent of 13 full monthly payments instead of 12. That one extra payment per year can shave months or even years off a long-term debt.
How the Debt Payoff Calculation Works
This calculator uses standard amortization math. For the Fixed Payment mode, the number of months is calculated as:
months = −log(1 − r × balance / payment) / log(1 + r)
where r is the monthly interest rate (APR ÷ 12 ÷ 100). For the Fixed Timeline mode, the required monthly payment is:
payment = balance × r / (1 − (1 + r)^(−months))
Each row in the payoff table applies your payment to interest first (balance × r), then the remainder reduces your principal. This matches how virtually all consumer debt — credit cards, personal loans, auto loans — is actually calculated by lenders.