See how much interest you save and how much sooner your loan closes when you make a one-time prepayment.
Loan prepayment is paying an extra lump sum toward your loan beyond the regular EMI, which goes straight against the outstanding principal. The appealing but hard-to-picture part is how much that single payment is worth in saved interest and in a shorter loan, because the benefit ripples across every future instalment. This calculator shows exactly how much interest you save and how many months earlier your loan closes when you make a one-time prepayment.
You enter the existing loan details, the interest rate, the remaining tenure, and the extra amount you plan to pay, along with when you plan to pay it. The tool then compares two futures, the loan as it stands and the loan after your prepayment, and reports the interest saved and the new, earlier payoff point. Trying different prepayment amounts shows you where the savings become worth dipping into your savings.
The method recalculates the amortization after the lump sum reduces the principal, then either shortens the tenure while keeping the EMI the same or, depending on the option, keeps the term and lowers the EMI. Because interest is charged on the outstanding balance, cutting that balance early removes interest from every remaining month, which is why a prepayment made sooner saves far more than the same amount paid years later. As a rough example, paying a lump sum in year two of a long loan typically saves much more interest than paying it in year eight.
Use this when you already have a running loan and a bit of spare cash, and you are weighing whether to throw it at the loan. If you are still comparing loans you have not taken yet, an EMI calculator is the right starting point, since it sizes the instalment before any prepayment enters the picture.
It suits real decisions. Someone who received a bonus can see whether prepaying the home loan beats leaving the money invested. A borrower can decide between a big one-time prepayment now and waiting. A person nearing the end of a loan can check whether prepaying still helps, since late in the term most of the interest is already behind them.
The whole calculation runs in your browser, so your loan and payment figures are never uploaded anywhere. There is no sign-up and no cost, and the only limit is your device's own memory, which this simple model will never reach. Lenders sometimes charge prepayment fees or apply the payment on specific dates, so confirm your loan's terms before assuming the full saving.
Interest is charged on the balance you still owe, so removing principal early wipes out interest on every month that follows. The same lump sum paid near the end of the loan has far fewer remaining months to affect, which is why timing matters as much as amount.
It can do either, and the calculator lets you see the effect of keeping the EMI the same to finish sooner, or keeping the tenure and lowering the monthly payment. Shortening the tenure usually saves the most interest overall.
The core calculation shows the interest saving before any lender fee, since charges vary by loan and are sometimes zero on floating-rate home loans. Check your loan agreement for any prepayment penalty and subtract it to judge the true net benefit.
That depends on whether your expected investment return beats your loan interest rate after tax, which is a personal call the calculator cannot make for you. Use the interest-saved figure here as one side of that comparison.
The tool is built around a single one-time prepayment to keep the comparison clear. To approximate several, you can run it again on the updated balance after the first prepayment is applied.
Yes, even a modest lump sum removes some interest from every remaining instalment, though the saving grows with both the amount and how early you pay. Trying a few figures shows where the benefit becomes meaningful for you.
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