How is home loan EMI calculated?
Indian banks almost always use the reducing balance method. Each month you pay interest only on the outstanding principal, not on the original loan. Your EMI stays fixed (for a fixed rate), but the split between interest and principal shifts every month: early years are mostly interest; later years pay down the principal faster.
P = principal · r = monthly rate (annual ÷ 1200) · n = months
10, 20, or 30 years - what tenure actually costs you
Stretching tenure reduces monthly outflow but compounds interest for longer. Here are real numbers for a ₹50 lakh loan at 8.75%:
| Tenure | Monthly EMI | Total interest paid |
|---|---|---|
| 10 years | ~₹62,600 | ~₹25 lakh |
| 20 years | ~₹44,200 | ~₹56 lakh |
| 30 years | ~₹39,300 | ~₹92 lakh |
Floating or Fixed? What most banks won't say upfront
Most new home loans are floating and linked to the RBI repo rate. When the repo changes, banks adjust either your EMI or your tenure and most prefer to silently extend tenure rather than raise your EMI. This means you could be paying a 20-year loan for 24 years without anyone telling you.
Fixed-rate loans offer certainty but usually start 0.5–1% higher and often carry a reset clause after three to five years at which point the bank can reprice. Read that clause before choosing fixed for "peace of mind."
The right time to prepay, and when it's a mistake
- Prepay when post-tax returns from comparable low-risk investments are clearly below your loan rate. The math is simple: if the loan costs 8.75% and a debt fund returns 7% post-tax, prepayment wins.
- Do not prepay before building an emergency fund of at least six EMIs. A missed payment damages your credit far more than the interest you save.
- If you are within 5 years of retirement, reducing outstanding tenure through prepayment beats chasing returns in unfamiliar instruments.
- A balance-transfer quote should always include processing fees, legal charges, and insurance reset costs. Model the break-even month before you pay anything.
Section 80C and 24(b): what you can actually claim
Principal repayment (within the ₹1.5 lakh 80C cap shared with EPF, ELSS, and insurance) and interest on a self-occupied property (up to ₹2 lakh under 24(b)) are the two standard deductions. Joint loans can split deductions between co-borrowers, often the most tax-efficient structure for a two-income household.
Under-construction properties, let-out properties, and loans taken after a specific completion date follow different rules. The limits also change with Union Budgets. Verify the exact figures with your chartered accountant before filing.
What rate should you expect in 2026?
Published home loan rates in India typically range from 8.5% to 9.5% for salaried borrowers with a good credit score (750+). Your actual rate depends on: your CIBIL/Experian score, employer category (listed company vs. self-employed), LTV ratio, and loan size. Rates are quoted as a spread over the bank's EBR, so they move with repo decisions.
Why your rate changes mid-loan: MCLR and EBR explained
Loans disbursed before October 2019 may still reference MCLR, which the bank resets quarterly or annually regardless of RBI action. Loans after that date are usually linked to an External Benchmark Rate (EBR), typically the repo rate plus a fixed spread. When the RBI cuts the repo, your EBR loan should adjust within the bank's reset cycle (usually quarterly). MCLR loans adjust more slowly.
Ask your bank exactly when they reset and whether they adjust your EMI or extend your tenure when rates rise. Most prefer tenure extension, which costs you more over time.
Co-applicants: how to use them right
Adding an earning co-applicant improves eligible loan amount because banks club incomes after FOIR deductions. Women borrowers also receive concessional stamp duty in several states (Maharashtra, Delhi, UP, among others), a structure worth planning before registration, not after.
Joint liability cuts both ways: every co-borrower is equally responsible if payments stop. And LTV caps (typically 75–90% depending on loan size) mean a larger principal always requires a larger down payment. Stress-test the EMI at +1.5% above the offered rate, if that number still feels comfortable, you have a margin of safety.
Before you sign: a short advisor's checklist
- Get the bank's provisional amortization schedule and compare the total payable with what this calculator shows. Any mismatch needs an explanation.
- Clarify upfront: does partial prepayment reduce your EMI, shorten your tenure, or does the bank decide? The answer affects your strategy.
- Request the Key Fact Statement (KFS) in plain language — RBI mandates it for all retail loans. If a bank resists, that's a signal.
- Keep six months of EMI in a liquid instrument after accounting for registration charges, stamp duty, and interiors. Loans get delayed; costs don't.