A part-prepayment can save lakhs in interest — but only if you choose the right option. We compare reducing EMI vs reducing tenure with real numbers.
When you make a part-prepayment on a home loan, the bank will usually ask you to choose: keep the same EMI and finish the loan earlier, or keep the same end date and pay a smaller EMI. Both reduce your interest, but the difference between them is bigger than most people expect.
The example
Take a ₹20 lakh loan at 8.5% for 20 years. The EMI is ₹17,356 and the total interest over the full term is about ₹21.66 lakh. After the first 12 EMIs, you prepay ₹2 lakh from a bonus.
| Option | EMI after prepayment | Loan ends after | Total interest | Interest saved |
|---|---|---|---|---|
| No prepayment | ₹17,356 | 240 months | ₹21,65,552 | — |
| Reduce tenure | ₹17,356 | 192 months | ₹15,24,075 | ₹6,41,476 |
| Reduce EMI | ₹15,586 | 240 months | ₹19,61,788 | ₹2,03,763 |
The same ₹2 lakh saves about ₹6.4 lakh if you reduce the tenure — the loan finishes four years early — but only about ₹2 lakh if you reduce the EMI. Reducing tenure keeps paying the higher EMI against a smaller balance, so more of every payment goes to principal.
When reducing the EMI makes sense
- Your current EMI is stretching your monthly budget and you need breathing room.
- Your income is uncertain (for example, you are changing jobs or starting a business).
- You plan to invest the monthly difference with discipline and expect a return clearly above your loan rate after tax.
When reducing the tenure makes sense
- You can comfortably afford the current EMI.
- You want to be debt-free sooner, for example before retirement or before a child's higher education.
- You want the guaranteed saving — every rupee prepaid "earns" your loan interest rate, risk-free.
Prepay early, not late
Interest is charged on the outstanding balance, which is highest in the early years. A prepayment in year 2 removes many more future interest payments than the same prepayment in year 15. If you are going to prepay, earlier is almost always better.
Before you prepay
- Keep an emergency fund of at least 6 months of expenses outside the loan.
- Check the tax side: if you are on the old tax regime, interest on a self-occupied home loan is deductible up to ₹2 lakh a year under Section 24(b), which slightly reduces the effective benefit of prepaying.
- Confirm charges: banks do not charge prepayment penalties on floating-rate home loans to individuals, but fixed-rate loans may have one.
- Get the revised repayment schedule in writing after the prepayment.
Enter your loan, the prepayment amount and when you will make it to compare both options for your own numbers.
Try the Prepayment Calculator →Frequently asked questions
Will the bank reduce tenure by default?
Many banks reduce the tenure by default when you prepay, but policies differ. Tell the bank which option you want when you make the payment.
Is it better to prepay or invest?
Prepaying earns a guaranteed return equal to your loan rate. Investing may earn more, but with risk. Many people split surplus money between the two.
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