Find your exact debt-free date and total interest paid. Enter your current balance, interest rate, and monthly payment to see a complete payoff projection — then try increasing your payment to see how much time and money you save.
This calculator simulates your debt payoff month by month. Each month, interest accrues on the remaining balance at your monthly rate (annual rate ÷ 12). Your payment first covers the interest charge, then reduces the principal by whatever remains. The simulation continues until the balance reaches zero, counting total months and cumulative interest charges along the way.
The critical threshold is that your monthly payment must exceed the monthly interest charge, otherwise you will never pay off the debt — you'll actually owe more each month. For example, a $5,000 balance at 18.5% APR accrues $77.08 in interest per month. Any payment of $77.08 or less means the balance grows instead of shrinks.
Balance: $5,000 | Rate: 18.5% APR | Payment: $200/month. Payoff time: 32 months. Total interest: $1,370. Total paid: $6,370. Increasing the payment to $300/month cuts payoff to 19 months and saves $620 in interest.
$8,000 credit card balance at 20% APR with minimum payments of 2% of balance (starting at $160 and decreasing): Payoff takes approximately 25 years and costs over $12,000 in interest — more than the original balance. Paying a fixed $250/month pays it off in 47 months and costs $3,640 in interest.
$12,000 auto loan at 7% over 60 months: Standard payment = $237.22. Total interest = $2,232. Paying an extra $50/month = $287.22 total. Payoff time drops to 48 months (12 months early) and interest drops to $1,764 — saving $468 for an additional investment of $2,400.
The Avalanche Method targets the highest-interest debt first, minimizing total interest paid. It is mathematically optimal. List your debts by interest rate from highest to lowest, pay minimums on all, and put every extra dollar toward the highest-rate balance. Once it's paid off, roll that payment into the next highest-rate debt.
The Snowball Method targets the smallest balance first, regardless of rate. It creates quick wins and psychological momentum, which research shows helps people stay committed to debt payoff. List debts from smallest to largest balance, pay minimums on all, and put extra money toward the smallest balance first.
Choose avalanche if you're motivated by numbers and want to minimize cost. Choose snowball if you've struggled with debt payoff before and need motivational wins to stay on track. Both work — the best method is the one you'll actually follow through on.
Minimum payments are designed to keep you in debt as long as possible. They typically cover only the monthly interest plus a tiny fraction of principal. On a $10,000 balance at 20% APR, the minimum payment might be $200 — of which $167 goes to interest and only $33 reduces principal. At this rate, payoff takes decades and costs more in interest than the original debt.
If your debt carries a higher interest rate than your expected investment return, pay off the debt first. A guaranteed 20% return from eliminating a credit card balance beats an uncertain 7–10% from the stock market. For low-rate debt (under 5–6%), many financial advisors suggest investing simultaneously, especially if you have employer 401(k) matching available.
Debt consolidation combines multiple debts into a single loan, ideally at a lower interest rate. It can reduce total interest paid and simplify payments. However, it only helps if: (1) the new rate is genuinely lower, (2) you don't continue accumulating new debt, and (3) the loan term isn't so long that lower payments cost more overall.
A balance transfer moves high-interest credit card debt to a new card with a 0% introductory APR period (typically 12–21 months). During this period, 100% of your payment reduces principal. The key is paying off the transferred balance before the promotional period ends and the regular (often 20%+) rate kicks in. Balance transfer fees typically run 3–5% of the transferred amount.
Contact your lender immediately. Many lenders offer hardship programs, temporary payment reductions, or forbearance arrangements. These options are far better than missing payments, which damage your credit score and trigger late fees and penalty interest rates. Nonprofit credit counseling agencies can also help negotiate with creditors on your behalf.