Debt Payoff Calculator
See your payoff date and the impact of extra payments
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Payoff Date (With Extra Payments)
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Months to Pay Off
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Total Interest Paid
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Without Extra: Months
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Interest Saved
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How to Pay Off Debt Faster
The most powerful insight from this calculator is usually the interest savings from even small extra payments. High-interest debt like credit cards works against you the same way compound interest works for you — relentlessly and exponentially. Paying it off faster is one of the highest guaranteed "returns" you can get.
- The avalanche method minimizes total interest. Pay minimum on all debts, then put every extra dollar toward the highest-rate debt first. Once eliminated, roll that payment to the next highest. This is mathematically optimal and can save thousands compared to random extra payments.
- The snowball method maximizes motivation. Pay off the smallest balance first, regardless of rate. The psychological reward of eliminating debts one by one keeps many people on track. If you've tried and failed to stick to debt payoff plans before, snowball often works better in practice.
- Balance transfers can dramatically cut interest. A 0% APR balance transfer card for 12–21 months lets you pay nothing but principal during the promotional period. On $10,000 of credit card debt at 20%, a 18-month 0% transfer saves approximately $3,000 in interest — minus any transfer fee.
- Never pay only the minimum. Minimum payments are designed to maximize interest paid to the lender. On a $5,000 balance at 22%, paying only the minimum ($100/month) costs $4,200+ in interest over 8 years. Doubling the payment eliminates the debt in under 3 years and saves $3,000.
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Frequently Asked Questions
The debt avalanche method: make minimum payments on all debts, then direct all extra money to the highest-interest-rate debt. Once paid off, roll that full payment to the next highest rate. This minimizes total interest paid and is mathematically the most efficient debt elimination strategy. Best for people motivated by numbers and total cost.
The debt snowball method: pay off the smallest balance first regardless of interest rate. Roll each eliminated debt's payment to the next smallest. You pay slightly more total interest than the avalanche, but the motivational wins from eliminating debts completely keep many people engaged. Dave Ramsey popularized this approach and it works well for those who need behavioral reinforcement.
Extra payments have an outsized impact on high-rate debt. Example: $10,000 credit card at 19.9% APR with $200 minimum payment takes 94 months and costs $8,755 in interest. Adding $150/month extra cuts it to 36 months and only $3,200 in interest — saving $5,500. The higher the interest rate, the more extra payments save.
Pay off high-interest debt (above 8–10% APR) before investing — it offers a guaranteed "return" equal to the interest rate. For employer 401(k) match, always contribute enough to get the full match first regardless of debt, as that is a guaranteed 50–100% instant return. Low-rate debt (mortgage at 6–7%) can be carried while investing, since long-term market returns have historically exceeded that rate.
The minimum payment trap: credit card minimum payments are typically 1–2% of the balance, designed to stretch repayment for years while maximizing interest income for the lender. A $5,000 balance at 20% with $100 minimum payments takes 93 months and costs $4,311 in interest — nearly doubling the original cost. Always pay significantly more than the minimum on high-rate debt.