How is Home Loan EMI Calculated?
Your home loan EMI (Equated Monthly Instalment) is a fixed amount you pay every month until the loan is fully repaid. It has two components — principal repayment and interest payment.
The EMI Formula
EMI = [P × R × (1+R)^N] / [(1+R)^N − 1]
- P = Principal loan amount (amount you borrow)
- R = Monthly interest rate (Annual rate ÷ 12 ÷ 100)
- N = Loan tenure in months (years × 12)
💡 Quick example: For a ₹50 lakh home loan at 8.50% for 20 years — monthly R = 8.50/12/100 = 0.00708, N = 240 months. EMI = ₹43,391 per month. Total interest paid = ₹54.1 lakhs over the full tenure.
What is EBLR and How Does It Affect Your EMI?
Since October 2019, RBI mandates all banks to link floating-rate home loans to an External Benchmark Lending Rate (EBLR) — usually the RBI Repo Rate. Your home loan rate = Repo Rate + Bank Spread + Credit Risk Premium.
This means when RBI cuts the repo rate, your home loan EMI automatically reduces at the next quarterly reset — without any action from you. At the current repo rate of 5.25%, SBI's EBLR is 7.90% (5.25% + 2.65% spread).
✅ RBI update: The repo rate was cut to 5.25% in December 2025. If you have an EBLR-linked home loan, your EMI should have reduced at the January 2026 reset. Check with your bank if it hasn't.
Factors That Affect Your Home Loan EMI
1. CIBIL Score — The Most Important Factor
Your CIBIL score is the single biggest factor banks use to decide your home loan interest rate. A higher score means a lower rate and lower EMI.
| CIBIL Score | Approximate Rate (SBI) | EMI on ₹50L / 20yr |
|---|
| 800+ | 7.50% | ₹40,280 |
| 750–799 | 7.75% | ₹41,330 |
| 700–749 | 8.25% | ₹43,391 |
| 650–699 | 9.00% | ₹44,986 |
| Below 650 | Likely rejected | — |
2. Loan Amount and LTV Ratio
Banks typically finance 75–90% of the property value (LTV ratio). The higher your down payment, the lower your loan amount and monthly EMI. For loans above ₹75 lakhs, banks may charge slightly higher rates.
3. Loan Tenure
A longer tenure reduces your monthly EMI but significantly increases total interest paid. A 20-year loan has a lower EMI than a 10-year loan for the same amount, but you end up paying nearly twice the interest.
⚠️ Important: Don't choose the longest tenure just for a lower EMI. Calculate the total interest cost using our calculator above. A shorter tenure saves lakhs in interest over the life of the loan.
4. Fixed vs Floating Rate
Most home loans in India today are floating rate (EBLR-linked). Fixed rate loans offer certainty but are typically 1–2% higher than current floating rates. Given the current low repo rate environment, floating rate loans are generally better for new borrowers.
Common Home Loan Mistakes to Avoid
Mistake 1: Not Checking Your CIBIL Score Before Applying
Many people apply for a home loan without checking their CIBIL score first. A rejection leaves a mark on your credit report and can make future applications harder. Check your score on the CIBIL website before applying.
Mistake 2: Borrowing the Maximum You're Eligible For
Banks may approve a loan of ₹80 lakhs, but that doesn't mean you should borrow that much. Keep your EMI below 40% of your net monthly income. Use our eligibility calculator to find your comfortable borrowing limit.
Mistake 3: Ignoring Processing Fees and Other Charges
Processing fees (0.25–1% of loan amount), legal fees, technical charges and prepayment penalties can add ₹50,000–1,50,000 to your loan cost. Always ask for a complete breakup of all charges before signing.
Mistake 4: Not Reading the Fine Print on Prepayment
RBI mandates zero prepayment penalty on floating rate home loans. But fixed rate loans may have a 2–3% penalty. Always confirm this before choosing your loan type.