Flat vs Reducing Rate
Convert between flat and reducing interest rates
What is a Flat vs Reducing Rate?
Flat rate and reducing rate are two different methods of calculating interest on a loan, and they produce very different effective costs. A flat rate charges interest on the original principal throughout the loan, while a reducing rate charges interest only on the outstanding balance. This means a 7% flat rate is actually equivalent to roughly 12-13% reducing rate.
This distinction is critical because some vehicle loans, gold loans, and older lending schemes quote flat rates that look deceptively low. This converter helps you see the true cost by converting between the two methods, so you can make apples-to-apples comparisons between different loan offers.
When to Use This Calculator
- Comparing a car dealer's flat-rate financing with a bank's reducing-rate car loan
- Understanding the true cost of a gold loan quoted at a flat rate
- Converting a flat-rate personal loan offer to see its real effective rate
- Verifying loan offers from NBFCs that may quote flat rates
- Educating yourself on interest rate types before taking any loan
Key Terms
Frequently Asked Questions
Why does a flat rate cost more than it looks?+
With a flat rate, you pay interest on the full original loan amount every month, even though you're repaying principal monthly. So in month 60 of a 60-month loan, you're paying interest on the full amount even though you've already repaid most of it. A 7% flat rate typically equals about 12-13% reducing rate.
Which method do Indian banks use?+
All regulated banks and most NBFCs in India use the reducing-balance method for home loans, personal loans, and car loans. Flat rates are sometimes used by car dealers, gold loan companies, and some microfinance institutions. RBI guidelines encourage transparency in rate disclosure.
How do I convert between flat and reducing rates?+
The approximate rule of thumb is: Reducing Rate ≈ Flat Rate × 1.8 to 1.9 (for typical tenures). But the exact conversion depends on tenure — this calculator gives you the precise equivalent using the actual EMI formula.
Is a flat rate always worse?+
For the same quoted number, yes — a 10% flat rate costs far more than a 10% reducing rate. But a 6% flat rate is cheaper than a 14% reducing rate. The point is to convert to the same basis before comparing.