Loan Prepayment Calculator

Making a lump-sum prepayment on your loan is one of the most effective ways to reduce your total interest burden and become debt-free faster. Our Loan Prepayment Calculator helps you quantify exactly how much you can save by making an early partial payment, and lets you choose between two popular strategies: reducing your loan tenure while keeping your EMI the same, or reducing your monthly EMI while keeping the tenure unchanged.

Reduce Tenure (Keep EMI) -- with this option, you continue paying the same EMI but finish your loan much earlier. This strategy saves the most total interest because you remain on the original repayment schedule while the prepayment reduces the principal faster. Reduce EMI (Keep Tenure) -- here, the lender recalculates your EMI based on the reduced outstanding principal over the remaining tenure. Your monthly burden goes down, but the total interest saved is typically lower than the tenure-reduction approach.

The calculator works by first computing your original amortization schedule to determine the outstanding balance at the point of prepayment. It then applies the prepayment amount to that balance and re-calculates either the remaining tenure (if keeping EMI constant) or the new EMI (if keeping tenure constant). Results include original vs post-prepayment comparison, interest savings in your currency, tenure reduction in years, and a year-by-year scenario table showing how the savings change depending on when you make the prepayment.

Loan prepayment is most beneficial in the early years of a loan, when the interest component of each EMI is at its highest. Prepayment charges vary by lender — in India, floating-rate home loans from banks have no prepayment penalty as per RBI guidelines, while personal loans and NBFC home loans may charge 2–5% of the outstanding amount. In the US, mortgage prepayment penalties typically apply only during the first 2–5 years of the loan term. UK lenders often allow up to 10% of the outstanding balance to be prepaid annually without penalty under overpayment privileges.

Regional Notes: In India, home loan prepayment reduces the principal eligible for Section 80C deduction, so factor in the tax impact. In the US, mortgage interest is tax-deductible on primary residences, so prepaying reduces the deductible amount — compare this against the interest savings. In the UK, overpayment privileges vary by lender; check your mortgage terms before making a lump-sum payment.