How Loan EMI Is Calculated
Every fixed-rate loan — mortgages, car loans, small-business financing — uses the same EMI formula behind the scenes.
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 months.
Why early payments are mostly interest
Each month's interest is calculated on the remaining balance, which is highest early in the loan. As the balance shrinks, more of each fixed payment goes toward principal — visible clearly in a full amortization schedule.
Worked example
$100,000 loan, 10% annual rate, 1-year term: monthly rate = 10%/12 ≈ 0.833%. EMI ≈ $8,791.59/month. Total paid over the year ≈ $105,499, meaning ≈ $5,499 total interest on a 1-year loan.
Try Free Web Tools Mentioned in This Guide
Frequently Asked Questions
Does EMI include fees, insurance, or taxes?↓
No — this is the pure principal-and-interest payment from the standard amortization formula. Lender fees, insurance, or escrow amounts vary and aren't included.
Why does my EMI stay the same but the interest/principal split change?↓
That's the defining feature of amortization — the fixed payment is recalculated behind the scenes each month so the loan reaches exactly zero balance at the final payment.