What Is EMI?
EMI (Equated Monthly Instalment) is the fixed amount you pay every month to repay a loan. Each payment covers two components: interest on the outstanding balance and a principal portion that reduces what you owe.
The EMI Formula
Banks and financial institutions worldwide use this compound-interest formula:
Step-by-Step Worked Example
Suppose you borrow ₹5,00,000 at 8.5% per annum for 5 years (60 months):
- r = 8.5 ÷ 12 ÷ 100 = 0.007083
- (1+r)⁶⁰ = 1.5269
- EMI = 5,00,000 × 0.007083 × 1.5269 ÷ (1.5269 − 1)
- EMI ≈ ₹10,233 / month
- Total repaid = ₹6,13,980 | Interest paid = ₹1,13,980
What Is an Amortization Schedule?
An amortization schedule breaks down every monthly payment. In the early months, most of your EMI goes to interest. Over time, the interest portion shrinks and the principal portion grows — this is the magic of amortization.
How to Reduce Your EMI
- Larger down payment — reduces principal P directly.
- Shorter tenure — higher EMI but much less total interest paid.
- Better credit score — qualifies you for a lower interest rate.
- Prepayments — lump-sum payments reduce the outstanding principal, cutting future interest.
EMI vs Flat Rate Interest
Some lenders quote a "flat rate" rather than a reducing-balance rate. Flat rate interest is calculated on the original principal for the entire tenure — making it significantly more expensive than an EMI calculated on the reducing balance. Always compare the Effective Annual Rate (EAR) or APR.
Frequently Asked Questions
Does EMI change if interest rates rise?
For fixed-rate loans the EMI is locked in. For floating-rate loans the bank may increase your EMI or extend your tenure when rates rise.
Can I prepay my loan?
Yes. Most banks allow partial or full prepayment, sometimes with a small penalty. Prepaying reduces your outstanding principal immediately, saving significant interest.
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