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Loan Payoff & Extra Payments

Loan Payoff Calculator

See how increasing your monthly payment accelerates your payoff date and slashes interest costs. Adjust the sliders to instantly preview the impact of an extra-payment “snowball” strategy.

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Loan Payoff Planner

Compare normal payments vs extra payments.

$15,000
$500$100K
18.00%
1%36%
$300
$25$3K
$150
$0$3K

Without Extra Payments

Payoff Time

5 years 3 months

Total Interest Paid:

$0

With Extra Payments

New Payoff Time

3 years 1 month

Interest With Extra

$0

Interest Saved

$0

Monthly Payment Comparison

Current Payment: $300
New Payment: $450

How to use this loan payoff calculator

This loan payoff calculator is designed to show you the true cost of carrying debt and the power of extra payments. Start by adjusting your current loan balance, interest rate (APR), and the amount you’re paying each month. Then increase the “Extra Monthly Payment” slider to see how much sooner you could become debt-free.

The calculator compares two payoff scenarios: your current payment schedule versus a boosted payment that includes extra principal each month. You’ll see how many months or years it will take to pay off the loan in both cases, as well as the total interest you’ll pay and how much interest you can save. This mirrors the logic behind popular debt payoff strategies such as the snowball and avalanche methods, where freed-up cash is rolled into larger payments over time.

Use these insights to set a realistic, aggressive payoff plan that fits your budget. Whether you’re tackling credit cards, personal loans, or other high-interest balances, even a small extra payment can create a big impact over the life of your loan.

This tool is for illustrative purposes only and does not constitute financial advice.