Estimate payoff time for your home equity line. Adjust payments, rates, and extra contributions easily. See years, interest, and schedule in seconds today, clearly.
Use realistic values. The calculator assumes payments are made on time.
Each period applies interest to the remaining balance, then subtracts the principal portion of the payment.
Sample values for quick testing. Results will differ based on rate changes and extra payments.
| Balance | Annual Rate | Payment | Extra | Frequency | Interest-only Months |
|---|---|---|---|---|---|
| 85,000 | 8.75% | 950 | 0 | Monthly | 0 |
| 65,000 | 9.50% | 900 | 100 | Biweekly | 6 |
| 120,000 | 7.90% | 1,250 | 150 | Monthly | 12 |
A repayment period is the count of payment periods needed to bring the balance to zero when interest accrues each period. With the sample settings (85,000 balance, 8.75% annual rate, 950 monthly payment), the schedule typically spans many years because early payments are interest heavy. Raising the payment or adding an extra amount shifts more dollars to principal sooner.
Each period computes interest as balance × rate per period, then assigns the remainder of the payment to principal. When the balance is high, interest consumes a larger share. As the balance falls, interest declines and the principal portion rises, accelerating payoff. The table and chart highlight this crossover pattern clearly.
An extra 100 per period can remove dozens of periods and reduce total interest materially because it hits principal immediately. Switching from monthly to biweekly or weekly increases periods per year and slightly changes interest timing; consistent frequent payments can shorten payoff compared with the same nominal monthly payment amount.
If you enter interest-only months, the calculator pays the period interest plus any extra amount, keeping required payments realistic for draw-period structures. If a new rate begins after a set month, later periods use the updated rate, which can lengthen payoff and increase total interest. Comparing two runs helps quantify this risk.
Use the payoff date to align with income milestones and expected cash flow. Review total interest to understand the cost of carrying the balance. Export the schedule to test scenarios: a 1% rate jump, a 200 extra payment, or a shorter interest-only window. Small adjustments often produce meaningful savings. For example, moving a 85,000 balance from 950 to 1,150 monthly can cut years off the horizon, while adding 150 extra each period can reduce interest by thousands. Use the chart to spot when principal overtakes interest significantly.
It is the number of payment periods required to reduce the balance to zero under the selected rate, payment amount, frequency, and optional rules like interest-only months or a later rate change.
If your payment is less than or equal to the period interest, the balance will not fall and can grow. Increase the payment, lower the rate assumption, or add extra principal to avoid negative amortization.
The tool converts the annual rate into a per-period rate using 12, 26, or 52 periods per year. It then builds a period-by-period schedule and advances dates monthly, every 14 days, or weekly.
During the interest-only phase, the payment is set to cover the computed interest for that period, plus any extra amount you add. Extra payments still reduce principal and can shorten the payoff timeline.
After the selected month count, the calculator applies the new annual rate to all later periods. This can increase interest per period, extend the repayment time, and raise total interest paid.
The CSV export contains every period row. The PDF export includes a summary and an initial preview of rows to keep the file small; use CSV for full detail or rerun with different scenarios.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.