Home Loan Prepayment: How Much Interest You Actually Save
In short: on a ₹30,00,000 home loan at 8.5% for 20 years, a one-time prepayment of ₹5 lakh after the first year saves about ₹14,13,746 in interest and ends the loan about 6 yr 1 mo early. The same ₹5 lakh after year 10 saves about ₹5,16,555. The earlier you prepay, the more you save, because early EMIs are mostly interest.
Hinglish me: ₹30 lakh, 8.5%, 20 saal ke loan me pehle saal ke baad ₹5 lakh prepay karne se lagbhag ₹14,13,746 byaaj bachta hai aur loan lagbhag 6 saal 1 mahine pehle khatam hota hai. Jitni jaldi prepay karenge, utni zyada bachat.
Why prepayment saves so much in the early years
Home loans use reducing-balance interest. Each month the bank charges interest on the outstanding balance, and the rest of your EMI reduces the principal. In the beginning the balance is large, so most of the EMI goes to interest.
| EMI number | Interest part | Principal part | Interest share of EMI |
|---|---|---|---|
| 1 | ₹21,250 | ₹4,785 | 82% |
| 60 | ₹18,778 | ₹7,256 | 72% |
| 120 | ₹14,952 | ₹11,083 | 57% |
| 180 | ₹9,108 | ₹16,926 | 35% |
| 240 | ₹183 | ₹25,852 | 1% |
In the first EMI, about 82% goes to interest. By EMI 120, the interest share falls to about 57%. A prepayment cuts the principal directly, so every later month is charged interest on a smaller balance. A prepayment in year 1 removes interest for 19 years; a prepayment in year 10 removes it for only 10.
The same ₹5 lakh, prepaid at three different times
| One-time prepayment of ₹5,00,000 | Tenure cut by | New tenure | Interest saved |
|---|---|---|---|
| after 1 year (EMI 12) | 6 yr 1 mo shorter | 13 yr 11 mo | ₹14,13,746 |
| after 5 years (EMI 60) | 4 yr 7 mo shorter | 15 yr 5 mo | ₹9,57,614 |
| after 10 years (EMI 120) | 3 yr 3 mo shorter | 16 yr 9 mo | ₹5,16,555 |
Timing matters more than most people expect. Waiting nine more years cuts the saving from ₹14,13,746 to ₹5,16,555.
Reduce tenure or reduce EMI?
After a prepayment, banks usually let you choose between keeping your EMI and shortening the loan, or keeping the tenure and lowering the EMI. Here is the same ₹5,00,000 prepaid after year 1:
| Strategy | Loan ends in | Monthly payment | Total interest | Interest saved |
|---|---|---|---|---|
| No prepayment | 20 yr | ₹26,035 | ₹32,48,327 | — |
| ₹5 lakh after year 1, keep EMI (tenure shrinks) | 13 yr 11 mo | ₹26,035 | ₹18,34,581 | ₹14,13,746 |
| ₹5 lakh after year 1, lower the EMI (tenure same) | 20 yr | ₹21,607 | ₹27,38,919 | ₹5,09,408 |
| Extra ₹2,000 every month, no lump sum | 16 yr 10 mo | ₹28,035 | ₹26,35,142 | ₹6,13,186 |
| One extra EMI (13th) every year | 16 yr 9 mo | ₹26,035 | ₹26,30,844 | ₹6,17,484 |
- Shorter tenure saves far more interest (₹14,13,746 against ₹5,09,408), because you keep paying at the higher rate and finish early.
- Lower EMI gives breathing room each month (about ₹4,427 less) but keeps the loan running for the full term.
- Many lenders reduce tenure by default. Ask your bank which option is applied and how to switch.
- Small regular extras work too: an extra ₹2,000 a month or one extra EMI a year each end the loan about 3 yr 2 mo and 3 yr 3 mo early.
Enter your own loan amount, rate and tenure to see the EMI, total interest and a year-wise repayment schedule.
Open Home Loan EMI CalculatorWill the bank charge a prepayment penalty?
The RBI’s Pre-payment Charges on Loans Directions, 2025, effective 1 January 2026, say that banks, NBFCs and other regulated lenders cannot levy pre-payment charges on floating-rate loans given to individuals for non-business purposes, which covers most home loans, regardless of where the prepayment money comes from. Individual floating-rate home loans were already largely protected under earlier RBI rules.
Check three things before you pay:
- Is your loan floating or fixed? A fixed-rate loan can still carry a charge.
- Does your loan agreement or key facts statement mention any charge? Lenders must disclose it, and cannot add a charge that was not disclosed.
- Is there a minimum prepayment amount or processing step? Some lenders ask for advance notice or a minimum amount. Ask for the revised repayment schedule in writing after you pay.
Before you prepay: a short checklist
- Keep an emergency fund first. A prepayment cannot be taken back. Keep several months of expenses liquid before you put spare money into the loan.
- Compare with other uses of the money. If another loan costs more than your home loan, clearing that one first usually saves more. Whether to prepay or invest is a personal decision that depends on your risk and goals; a qualified financial advisor can help.
- Think about the tax angle. Under the old tax regime, interest on a self-occupied home loan is deductible up to ₹2 lakh a year under Section 24(b), and principal repayment counts towards the ₹1.5 lakh Section 80C limit. Prepaying reduces your future interest, and so your future deduction. Deductions differ under the new regime. Confirm with a tax professional.
- Get a revised schedule. After the prepayment, ask for an updated statement and check the new tenure or EMI.
Using a gratuity or bonus lump sum
Many people use a bonus, an inheritance or a retirement benefit such as gratuity to prepay. You can estimate the lump sum with the Gratuity Calculator, and our guide to gratuity calculation and the 5-year rule explains how it is worked out. For other loans, such as a car loan, the EMI Loan Calculator works the same way.
How these numbers were produced: each month interest = outstanding balance × (annual rate ÷ 12 ÷ 100); the EMI minus that interest reduces the principal. Prepayments are applied right after the EMI of the stated month. Your bank’s own schedule may differ slightly because of day-count rules and rate resets.
Sources and where to verify
- Reserve Bank of India (Pre-payment Charges on Loans Directions, 2025)
- Income Tax Department (home loan deductions)
This guide is for general information and illustrates arithmetic on one sample loan. It is not financial or tax advice. Your actual savings depend on your lender’s schedule, rate changes and repayment choices. Please speak to your lender or a qualified advisor before making a prepayment.
Does prepaying a home loan really save money?
Yes. On a ₹30,00,000 loan at 8.5% for 20 years, a single ₹5 lakh prepayment after year 1 saves about ₹14,13,746 in interest and shortens the loan by about 6 yr 1 mo.
Is it better to reduce the EMI or the tenure?
Reducing the tenure saves much more interest because you stop paying interest sooner. Reducing the EMI lowers the monthly burden but keeps the loan running longer. Choose based on your cash flow.
Do banks charge a penalty for prepaying a home loan?
Under RBI rules effective 1 January 2026, regulated lenders cannot charge pre-payment penalties on floating-rate loans to individuals for non-business purposes. Fixed-rate loans may still carry charges, so check your agreement.
When is the best time to prepay?
As early as your finances allow. In the early years most of each EMI is interest, so a prepayment removes the most future interest.
Will prepayment affect my tax deduction?
It can reduce your future interest and so your Section 24(b) deduction under the old regime. The rules differ under the new regime. Confirm with a tax professional.