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Loan Prepayment Calculator

Calculate interest savings and tenure reductions when making lumpsum loan prepayments.

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✓ FY 2026-27 ✓ Privacy First
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Overview

  • 4 min read
  • Difficulty: Beginner
Best for:
✓ Existing Borrowers✓ Loan Prepayment✓ Debt Free Planning

Editorial & Math

Reviewed annually or whenever relevant government or regulatory provisions change.

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What is Loan Prepayment?

Loan Prepayment is the process of paying off a portion of your outstanding loan principal before its scheduled maturity date.

Since interest is calculated on the outstanding balance, prepaying reduces the principal outstanding directly, saving you significant interest costs over the remaining tenure.


How it Works

When you prepay a lumpsum, you can choose between:

  1. Reduce Tenure: Keep your monthly EMI same, which shortens your loan period.
  2. Reduce EMI: Keep your tenure same, which lowers your monthly outflow.

Reducing tenure generally yields the highest interest savings.

The Mathematics of Prepayment

When you prepay, the entire amount is deducted from the principal. Let’s look at a practical example:

Impact of ₹2,00,000 Prepayment in Year 3

Step 1
Original Loan
₹50,00,000 at 8.5% for 20 years
Step 2
Original Total Interest
₹54,17,200
Step 3
Outstanding Balance in Month 36
₹46,80,000
Resulting Breakdown
New Balance after Prepayment ₹44,80,000
Tenure Saved 24 Months (2 years)
Interest Saved ₹5,40,000

Smart Prepayment Decisions (Should I Prepay?)

1. Should I invest the money instead? If your expected post-tax return from an investment (like an Equity Mutual Fund) is significantly higher than your home loan interest rate, mathematically it might make sense to invest. However, prepaying guarantees a risk-free return equivalent to your loan’s interest rate.

2. Are there prepayment penalties? According to RBI guidelines, there are ZERO prepayment penalties on floating-rate home loans for individual borrowers. If you have a fixed-rate loan, banks may charge up to 2% on the prepaid amount.

Prepayment Strategy

Even a small increase in your EMI (like 5% every year) or one extra EMI per year can shave off 4-5 years from a 20-year loan.


Regulatory Citations

RBI Circular on Zero Prepayment Charges (Official Portal)
Fact-Checked & Verified for FY 2026-27 CBDT & RBI Aligned
Meet Our Editorial Board →

Alok Mahapatra

Head of Financial Research & Founder

Founder of PaisaTalk. Retail investing specialist and personal finance content editor.

Reviewed By: PaisaTalk Taxation & Quantitative Review Panel
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Standards: Editorial Policy
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Math Audit: 100% Verified

Disclaimer: Financial calculations are illustrative estimates. Interest rates, lender charges, and regulations may change. Verify facts with your lender before applying.