Loan Prepayment Calculator - See How Much You Save

Calculate how much interest you save by making loan prepayments. See the impact of lump sum payments on your loan tenure and total cost.

Last updated: June 2026 for FY 2025-26Formula verified against RBI / government guidelinesReviewed by Jashmin, Finance Professional
100% private: All calculations run in your browser. Your numbers never leave your device — no server, no storage, no account required.

Calculate Loan Prepayment

1,00,0005,00,00,000

Original loan amount

%
5%20%

Annual interest rate

months
12months360months

Original loan tenure

50,0001,00,00,000

Lump sum prepayment amount

months
6months240months

When you'll make the prepayment

Interest Saved

₹17,70,380

Monthly EMI

₹26,035

Original Total Interest

₹32,48,400

New Tenure (Months)

172

How to Use This Loan Prepayment Calculator

Using our Loan Prepayment Calculator is simple and takes just a few seconds. Enter your values using the sliders or input fields above, and the results will update instantly — no need to click a calculate button.

All calculations are performed in your browser using standard financial formulas. Your data is never stored or transmitted to any server, ensuring complete privacy.

The results shown are estimates based on the inputs you provide. For precise figures, consult with your bank or financial advisor. Use this tool for quick comparisons, planning, and understanding how different variables affect your financial outcomes.

Formula & Explanation

Interest Saved = Original Total Interest - New Total Interest after Prepayment

When you make a prepayment, the outstanding principal reduces immediately. With the same EMI, more of each payment goes toward principal, reducing tenure significantly. The earlier you prepay, the more interest you save due to the reducing balance method.

Calculation Examples

Home Loan Prepayment

₹30L loan at 8.5%, prepay ₹5L after 2 years

Interest Saved: ₹8.2 Lakh | Tenure reduced by 38 months

Benefits

  • See exact interest savings
  • Compare prepayment timing
  • Plan surplus fund usage
  • Understand tenure reduction
  • Make informed financial decisions

Use Cases

  • Home loan prepayment planning
  • Bonus/increment utilization
  • Inheritance/windfall planning
  • Loan closure planning
  • EMI vs investment decision

About Loan Prepayment Calculator

Our Loan Prepayment Calculator shows you exactly how much interest you can save by making a one-time prepayment on your home loan, car loan, or personal loan. See how prepayment reduces your tenure while keeping EMI the same, and make informed decisions about using surplus funds.

Frequently Asked Questions

Compare your home loan rate (post-tax) with expected investment returns. Home loan at 8.5% saves 8.5% guaranteed (tax-adjusted to ~6% if in 30% slab with Section 24b deduction). Equity SIP may give 12-14% CAGR over 10+ years but with risk. If your loan rate is above 9%, prepaying is safer. If below 8.5% and you have 10+ year horizon, equity SIP may win. For a ₹50 lakh loan, prepaying ₹5 lakh in year 2 saves approximately ₹10 lakh in interest. Use the free Loan Prepayment Calculator on AbacusHand to calculate your exact result instantly.

As per RBI circular, banks and NBFCs cannot charge prepayment penalty on floating-rate home loans taken by individual borrowers. Fixed-rate home loans may attract a foreclosure charge of 2-5% of the outstanding principal. Always check your loan agreement. If your bank charges penalty on a floating-rate loan, you can file a complaint with the RBI ombudsman. For example, prepaying ₹10 lakh on a fixed-rate loan may cost ₹20,000-₹50,000 in penalty. Use the free Loan Prepayment Calculator on AbacusHand to calculate your exact result instantly.

The interest saving depends on when you prepay and the loan amount. On a ₹30 lakh home loan at 8.5% for 20 years, prepaying ₹5 lakh in year 2 saves approximately ₹8-10 lakh in total interest and reduces tenure by 4-5 years. Prepaying in year 10 (same amount) saves only ₹3-4 lakh. The earlier you prepay, the more you save — interest front-loading makes early prepayments far more valuable. Use the free Loan Prepayment Calculator on AbacusHand to calculate your exact result instantly.

Part prepayment (partial prepayment) means paying a lump sum over and above your regular EMI, reducing the outstanding principal. This can reduce either tenure or EMI. Full prepayment (foreclosure) means paying off the entire outstanding loan at once. Part prepayment is more common and flexible — you can prepay ₹50,000 from a bonus without closing the loan entirely. Full prepayment may attract foreclosure charges on fixed-rate loans. Use the free Loan Prepayment Calculator on AbacusHand to calculate your exact result instantly.

The best time to prepay is in the first 5-7 years when the interest component in EMI is highest. In the early years of a ₹40 lakh, 8.5%, 20-year loan, over 85% of each EMI goes towards interest. A ₹5 lakh prepayment in year 2 saves ~₹10 lakh in interest; the same prepayment in year 15 saves only ~₹2 lakh. Use annual bonuses, Diwali bonus, or inheritance for prepayment in the loan first 3-5 years. Use the free Loan Prepayment Calculator on AbacusHand to calculate your exact result instantly.