Personal Loan EMI Explained: How It’s Calculated

EMI stands for Equated Monthly Instalment - the fixed amount you pay each month toward your personal loan, covering both interest and a portion of the principal.

How EMI is calculated

EMI is calculated using three inputs: the loan principal (amount borrowed), the interest rate, and the tenure (repayment period in months). The standard formula lenders use is:

EMI = [P × R × (1+R)^N] / [(1+R)^N - 1]

where P is principal, R is the monthly interest rate, and N is the number of monthly instalments. In practice, you don't need to calculate this by hand - EMI calculators (like the one on NeerCred's homepage) do this instantly once you enter loan amount, rate, and tenure.

Why the EMI stays constant but the split changes

Even though your EMI amount stays the same every month, the proportion going toward interest versus principal shifts over time. In the earlier months of the loan, a larger share of each EMI goes toward interest; as the outstanding principal reduces, a growing share goes toward principal. This is standard for reducing-balance loans, which is how most personal loans are structured.

How tenure affects your EMI and total cost

A longer tenure lowers your monthly EMI but increases the total interest you pay over the life of the loan, since interest accrues for longer. A shorter tenure raises your monthly EMI but reduces total interest paid. There's a genuine trade-off here - the "right" tenure depends on what monthly payment comfortably fits your budget versus how much total interest cost you're willing to bear.

A practical note

Before accepting any loan offer, it's worth looking at both the EMI and the total repayment amount (principal + total interest) shown in your Key Fact Statement, not just the EMI figure in isolation.