How Home Loan EMI Works
An EMI (Equated Monthly Instalment) is the fixed amount you pay every month, made up of interest on the outstanding loan plus a part of the principal. Early in the loan most of the EMI is interest; later, most goes to principal.
EMI = P × r × (1+r)n ÷ ((1+r)n − 1)
where P = loan amount, r = monthly interest rate (annual rate ÷ 12 ÷ 100), and n = number of monthly instalments.
The Power of Prepayment
Because home loans run for 15–30 years, a large share of what you pay is interest. Paying even a small amount extra towards the principal each month shortens the tenure and cuts total interest dramatically — and prepayment has the biggest impact in the early years of the loan.
- Extra payments reduce the outstanding principal directly.
- A lower principal accrues less interest every month after that.
- Most banks keep the EMI fixed and reduce the tenure, maximising savings.
Frequently Asked Questions
Will prepayment lower my EMI or tenure?
Typically the tenure reduces while the EMI stays the same, which saves the most interest. Some banks let you choose to lower the EMI instead.
Are there prepayment charges?
For floating-rate home loans to individuals, the RBI does not allow prepayment/foreclosure penalties. Fixed-rate loans may carry charges — check your loan agreement.