Home Loan Prepayment Calculator India 2026
Enter your lump-sum prepayment — see exactly how much interest you save and how many years fall off your tenure. Choose reduce-tenure or reduce-EMI mode.
The verdict: For a ₹50 lakh loan at 8.7% over 20 years, prepaying ₹5 lakh in year 3 (reduce-tenure mode) saves approximately ₹14 lakh in interest and cuts your tenure by over 4 years. The earlier you prepay, the higher the multiplier — year-2 prepayments return 3–4× the prepaid amount in interest savings.
Why prepay early? The compounding math
A home loan EMI is structured so that in the early years, nearly 70–80% of every EMI goes toward interest. When you prepay a lump sum, the entire amount reduces the principal — and since interest is calculated on outstanding principal, every future EMI pays less interest and more principal. The effect compounds forward: each rupee of principal reduction removes multiple rupees of future interest.
Example: ₹50L at 8.7% over 20 years. Monthly rate r = 0.725%. In month 1, interest component = ₹50L × 0.725% = ₹36,250 out of a ₹44,026 EMI. Only ₹7,776 reduces principal. Prepaying ₹5 lakh in year 3 immediately removes ~₹36,250 × 12 = ₹4.35L of yearly interest from the stream — and that effect is repeated and amplified for the remaining tenure.
Sample savings — quick-reference table
| Scenario | Prepayment | Interest saved | Tenure saved |
|---|---|---|---|
| ₹50L loan, 20 yr, 8.7% | 5L in year 3 | ~₹14.2L | 4y 2m |
| ₹75L loan, 20 yr, 8.7% | 10L in year 2 | ~₹32.8L | 5y 8m |
| ₹1Cr loan, 25 yr, 8.9% | 15L in year 5 | ~₹58L | 7y 1m |
| ₹50L loan, 15 yr, 8.5% | 5L in year 4 | ~₹8.4L | 2y 9m |
Reduce-tenure mode. Actual savings vary by EMI due date of prepayment and exact outstanding balance.
Optimal prepayment strategy — 3 rules
- Prepay in the first third of tenure. Interest savings per rupee prepaid are highest in years 1–7 (20-year loan) and years 1–5 (15-year loan). After that, the outstanding principal is smaller and the multiplier drops sharply.
- Always choose reduce-tenure over reduce-EMI unless you are cash-flow constrained. Reducing EMI keeps your tenure unchanged — you pay interest for the same number of months. Reducing tenure compresses future interest payments into fewer months.
- No RBI penalty on floating-rate loans. Banks cannot charge prepayment or foreclosure fees on floating-rate individual home loans. If your lender demands a penalty, cite the RBI Master Circular on Interest Rates on Advances (2011 circular, reiterated in 2014 NHB circular). NBFCs and fixed-rate loans are a different matter — check your sanction letter.
Tax implications of prepayment
Prepayment does not affect your tax deductibility in the year it is made. However, as principal reduces faster, the interest component of future EMIs shrinks — which means your Section 24(b) interest deduction (up to ₹2L/year on self-occupied property) will be fully consumed earlier in the tenure. For high-income borrowers in the 30% bracket who maximize Section 24(b), the effective after-tax cost of the loan is lower, making the return from investing vs prepaying closer. Run the numbers under both the old tax regime (claiming deductions) and the new regime (flat rates, no deductions).
Frequently asked questions
Is there a prepayment penalty on home loans in India?
Per RBI directive, banks cannot levy prepayment or foreclosure charges on floating-rate home loans for individual borrowers. Fixed-rate loans (and loans from NBFCs) may carry 2–4% penalty. Always check your sanction letter's prepayment clause before making a lump-sum payment.
Which is better — reduce EMI or reduce tenure after prepayment?
Reducing tenure saves substantially more interest because the outstanding principal reduces faster, cutting compounding time. Reducing EMI frees up monthly cash flow. Rule of thumb: if your income is stable and you don't need the freed EMI amount for other high-return investments, reduce tenure. If you're cash-flow constrained, reduce EMI.
When is the best time to prepay a home loan?
In the early years — years 1 to 7 for a 20-year loan. This is when the interest component of each EMI is highest (typically 70–80%). Prepaying ₹1 lakh in year 2 can save ₹3–4 lakh in total interest; the same ₹1 lakh in year 16 saves only ₹20,000–30,000.
Does home loan prepayment affect Section 80C tax benefit?
Prepayment reduces your future principal repayment, which partly reduces the 80C deduction you can claim from principal. However, the interest saving (up to 50× the prepaid amount over the tenure) far outweighs the tax impact. Run both scenarios in a tax calculator before deciding.
Can I make partial prepayments multiple times?
Yes. Most banks allow unlimited prepayments on floating-rate loans with no minimum amount. Some banks process partial prepayments only on EMI dates; others accept any time. Check with your lender. Each prepayment effectively restarts the calculation — use this calculator for each tranche.
What is the minimum amount for prepayment?
There is no RBI-mandated minimum. Banks typically have internal minimums of ₹10,000–₹50,000 per transaction. Check your loan agreement. Some banks waive minimum requirements entirely.
Should I prepay my home loan or invest in mutual funds?
If your home loan rate is 8.5–9% and you're in the 30% tax slab claiming full interest deduction, the effective after-tax cost is 5.9–6.3%. Equity mutual funds historically return 11–14% CAGR over 10-year periods. In that scenario, investing beats prepaying. If you're not claiming interest deduction or the loan rate is above 9.5%, prepayment wins. Never trade certainty of debt reduction for speculative returns.
Does SBI / HDFC charge for partial prepayment?
No. Both SBI and HDFC (along with all banks) cannot charge for partial prepayment of floating-rate individual home loans per the RBI 2011 circular. They can only charge if the loan is on a fixed rate. Verify your loan type in the sanction letter.
How does prepayment affect an under-construction property loan?
During the construction period you typically only service the pre-EMI interest (not principal). Prepayment during this phase reduces the disbursed principal, shrinking future EMIs when full repayment starts. Very high ROI — every rupee prepaid before full disbursement saves more than post-disbursement prepayment.