What is Loan Prepayment?
Loan prepayment means making a payment over and above your scheduled EMI, applied directly to your outstanding principal. Since your future interest is calculated on the remaining balance, reducing the principal reduces every subsequent month's interest charge. Over a long tenure like 20–30 years, the compounding effect of this interest reduction is dramatic. A ₹5 lakh prepayment on a ₹50 lakh home loan early in the tenure can save ₹8–12 lakh in total interest and cut 2–4 years off the loan.
How Much Can You Save by Prepaying?
The savings depend on three factors: the prepayment amount, when you make it, and your loan's interest rate. The earlier in the tenure you prepay, the more interest you avoid — because the prepaid principal would have attracted interest for many remaining years. At 8.5% on a 20-year loan, every ₹1 lakh prepaid in year 2 saves approximately ₹1.4–1.6 lakh in total interest. Monthly prepayments (even small ones, like ₹5,000/month extra) have a powerful compounding effect over time. Use the calculator above to model your exact scenario.
When is the Best Time to Prepay?
Prepay as early in the tenure as possible — the first 5 years are the most interest-heavy. In a standard amortization schedule, over 70% of your EMI in the early months goes toward interest. Prepaying in this period eliminates principal that would have attracted interest for the longest remaining period. If you receive an annual bonus, a salary hike, or a windfall, put it toward prepayment before considering other investments — the guaranteed "return" of eliminating 8–9% home loan interest is hard to beat risk-free.