Detailed Analysis
Understanding the difference between flat and reducing interest rates can save you lakhs on your loan. Many borrowers fall into the trap of choosing a loan with a lower "flat rate" without realizing they're actually paying much more.
Flat Rate charges interest on the full original loan amount throughout the entire tenure. If you borrow ₹10 lakh at 10% flat for 5 years, interest = ₹10,00,000 × 10% × 5 = ₹5,00,000. Total repayment = ₹15,00,000.
Reducing Balance Rate charges interest only on the outstanding principal, which decreases with each EMI payment. The same ₹10 lakh at 10% reducing for 5 years: Total interest ≈ ₹2,74,000. Total repayment = ₹12,74,000.
The difference is ₹2,26,000 — that's how much extra you pay with flat rate on the same stated percentage! This is why RBI mandates that banks disclose the Annual Percentage Rate (APR) to help borrowers make informed comparisons.