When you apply for a loan, the interest rate is the most critical factor. However, not all interest rates are calculated the same way. The two most common methods are the Flat Rate and the Reducing Balance (EMI) method. Understanding the difference can save you thousands.
What is a Flat Interest Rate?
In a flat rate system, the interest is calculated on the entire principal amount for the entire tenure of the loan. Even as you pay off the principal month by month, your interest remains based on the original amount you borrowed.
Example: If you borrow $10,000 at a 10% flat rate for 5 years, you will pay $1,000 in interest every year, totaling $5,000 in interest, regardless of your repayments.
What is a Reducing Balance (EMI) Rate?
In a reducing balance system, the interest is calculated only on the outstanding principal. As you pay your EMI (Equated Monthly Installment), a portion goes toward the principal. The next month's interest is calculated on the new, lower principal.
Which is Better?
The Reducing Balance method is almost always better for the borrower. A 10% flat rate is roughly equivalent to a 17-19% reducing balance rate. Always ask your lender for the Effective Annual Rate (EAR) or use our EMI Calculator to see the true cost of your loan.