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Interest Reduction Analysis & Prepayment Engine

Home Loan EMI & Prepayment Savings Calculator

Standard bank calculators only show your monthly EMI. This tool reveals how paying just a little extra each month saves lakhs in interest and finishes your loan years early.

₹50 Lakh
₹
8.5%
20 Years
5 Years 15 Years 20 Years 30 Years
+ ₹5,000/mo
₹

Paying just ₹3,000 to ₹5,000 extra directly towards principal reduces the compounding interest drastically.

Monthly EMI Payable
₹43,391 / month
Total Interest (Base) ₹54,13,840
Total Payment (P + I) ₹1,04,13,840
Your Prepayment Savings
Save ₹13,89,179

Your loan ends 4.4 years earlier (15.6 years instead of 20 years)!

Key Mortgage Insights

• Tenure matters most: A 30-year loan has slightly lower EMI than a 20-year loan, but you pay more than double the total interest!

• Prepay early: Prepayments in the first 5 to 7 years have 5x more impact than prepayments in the final years.

Home Loan EMI & Prepayment — Frequently Asked Questions

How is a home loan EMI calculated?

EMI = [P × R × (1+R)^N] ÷ [(1+R)^N − 1], where P is the principal, R is the monthly interest rate (annual rate ÷ 12 ÷ 100) and N is the number of monthly instalments. Early EMIs are mostly interest; the principal share rises as the loan matures.

How much interest does prepaying an extra ₹5,000 a month save?

On a typical ₹50 Lakh, 20-year loan at 8.5%, an extra ₹5,000 every month saves well over ₹10 Lakh in interest and closes the loan roughly four to five years early. Prepayments applied in the first few years save the most, because that is when the outstanding principal — and therefore the interest accruing on it — is highest.

Should I reduce the EMI or the tenure when I prepay?

Reducing the tenure saves far more interest, because you keep paying the same amount against a shrinking principal. Reducing the EMI improves monthly cash flow but leaves the loan running for its original term, so most of the interest saving is lost.

Is there a penalty for prepaying a home loan in India?

No. The RBI bars banks and housing finance companies from charging foreclosure or prepayment penalties on floating-rate home loans taken by individual borrowers. Fixed-rate loans can still carry a charge, so check your sanction letter before making a lump-sum payment.

What EMI can I afford on my salary?

Lenders generally cap total EMIs at 50–55% of net monthly income (the FOIR limit), but 35–40% is a more comfortable ceiling once EPF, insurance and living costs are accounted for. Calculate your in-hand salary first, then work backwards to a loan amount.

Assumptions and formulas last reviewed on . See our calculation methodology.