Explainer · Home Loans India

How home loan rates & EMIs are calculated

A quick reference on how Indian banks price a home loan, how RBI policy feeds into it, and the maths behind your monthly EMI.

01

What makes up your interest rate

Component A
Benchmark rate
Reference rate reviewed quarterly — usually the RBI repo rate for floating loans (EBLR) or the bank's MCLR
+
Component B
Spread (markup)
Bank's margin, set at the time of loan approval based on your credit score, loan tenure and risk profile
=
Result
Effective interest rate
What you actually pay — moves whenever the benchmark resets, typically every 3 months for EBLR loans
02

How the benchmark itself evolved

Before 2016
Base Rate regime
Banks priced loans off an internally-set "Base Rate," which was slow to reflect RBI policy changes and varied widely between lenders.
April 2016
Shift to MCLR
RBI introduced the Marginal Cost of Funds based Lending Rate (MCLR), tying rates more closely to a bank's actual cost of funds.
October 2019
External Benchmark Lending Rate (EBLR)
Banks were required to link floating-rate retail loans to an external benchmark — most commonly the RBI repo rate — so policy changes pass through faster and more transparently.
Today
Repo-linked floating rates dominate
Most new home loans reset at least once every three months in line with the repo rate, plus the bank's spread.
03

The EMI formula

EMI = P × r × (1+r)ⁿ / [(1+r)ⁿ − 1]
P
Principal — the loan amount borrowed
r
Monthly interest rate — annual rate ÷ 12 ÷ 100
n
Number of monthly instalments (tenure × 12)
P = ₹50,00,000 Rate = 8% p.a. Tenure = 20 yrs (240 months) EMI ≈ ₹41,822/month
04

What moves your rate

①
RBI repo rate
Rate cuts typically bring home loan rates down; hikes push them up.
②
Credit score
A higher CIBIL score signals lower risk and earns a smaller spread.
③
Income & job stability
Stable, higher income reduces perceived default risk.
④
Loan-to-value ratio
A bigger down payment (lower LTV) can mean a lower rate.
⑤
Repayment history
A clean track record on past loans improves your pricing.
⑥
Lender competition
Banks compete for good borrowers, which can push spreads down.
05

Fixed vs. floating, at a glance

Fixed rate

  • Rate stays constant for a set period or the full tenure
  • Predictable EMI — useful when rates are expected to rise
  • You don't benefit if market rates fall
  • Lenders may still reset it via a contract clause

Floating rate

  • Moves with the benchmark (repo rate / MCLR)
  • EMI falls when the RBI cuts rates
  • EMI rises when the RBI hikes rates
  • Most home loans in India are floating today