Loan Prepayment Calculator

Loan Prepayment Calculator

Find out exactly how much interest you save and how many EMIs you cut by making a lump-sum prepayment on your loan.
Currency

50 L
1L10L25L50L75L1Cr
8.5% p.a.
5%8%12%15%18%24%
20 yrs
1 yr51015202530 yrs
5 L
50K2L5L10L25L50L
12 EMIs
1 mo61224364860 mo

Enter your loan details and press
Calculate Savings

Your Prepayment Savings

💰 Total Interest Saved
Monthly EMI
No Change
EMIs Saved
Months Cut
New Tenure
After Prepay
Old Tenure
Original
Total Interest Comparison
Without Prepayment
With Prepayment
Year-by-Year Amortisation Comparison
Without Prepayment With Prepayment
Year EMI Paid Principal (W/O) Interest (W/O) Balance (W/O) Balance (With Prepay)

Loan Prepayment Calculator Guide

Understand how prepayment works, when to prepay, and how it slashes your total interest outgo.
What is Loan Prepayment?

Loan prepayment means paying an extra lump sum (over and above your regular EMI) directly towards your outstanding principal. Since interest is calculated on the remaining balance, reducing the principal early leads to dramatically lower total interest — and a shorter loan tenure.

Works best In the first half of tenure
Loan types Home, Car, Personal, Education
Save lakhs on home loans
Example Calculation

Home loan of ₹50,00,000 at 8.5% for 20 years. Prepay ₹5,00,000 after 12 EMIs:

Interest (No Prepay)
≈ ₹56.6 L
Interest (With Prepay)
≈ ₹47.8 L
You Save ≈ ₹8.8 L + 2.5 yrs
*Savings vary with timing — prepay early for max benefit.
The EMI & Prepayment Formula Explained
EMI = P × r × (1 + r)^n / [(1 + r)^n − 1]
P – Principal

Outstanding loan amount at the time of calculation.

r – Monthly Rate

Annual rate ÷ 12. E.g. 8.5% p.a. = 0.708% per month.

n – Remaining EMIs

After prepayment, remaining months reduce — shrinking total interest.

Prepay Effect

Prepayment reduces outstanding principal, cutting both tenure and total interest.

When Should You Prepay?
Early in Tenure

Maximum benefit comes from prepaying in the first 3–5 years when the interest component of your EMI is highest.

After a Bonus / Windfall

Use a year-end bonus, tax refund, or any lump sum to make a meaningful prepayment instead of parking it in a savings account.

Check Prepayment Charges

Floating-rate home loans have zero prepayment penalty (RBI mandate). Fixed-rate and personal loans may charge 1–4%.

Benefits of Loan Prepayment
Massive Interest Savings

Even a single prepayment can save you lakhs on a long-tenure home loan — far more than the same money in a savings account.

Shorter Loan Tenure

Become debt-free years earlier. Closing a 20-year loan in 16 years gives you financial freedom and peace of mind.

Improved Credit Score

Lower outstanding debt improves your credit utilisation ratio, positively impacting your CIBIL / credit score over time.

Frequently Asked Questions

Q1: Is there a penalty for prepaying a home loan?

As per RBI guidelines, banks cannot charge a prepayment penalty on floating-rate home loans. For fixed-rate loans, a charge of 1–2% of the prepaid amount may apply.

Q2: Should I prepay or invest the surplus?

If your loan interest rate (e.g. 8.5%) is higher than the expected post-tax return on your investment, prepayment wins.

Q3: Should I reduce tenure or EMI after prepayment?

Reducing tenure saves more total interest. Reducing EMI is better if you need monthly cash flow relief. Most financial advisors recommend reducing tenure.

Q4: Can I make multiple prepayments?

Yes. Most banks allow partial prepayments anytime after 6 months. Each prepayment compounds the savings — the more you prepay, the less you owe.

Authority Sources: RBI IndiaInvestopedia – PrepaymentNHB India