{"id":54585,"date":"2026-08-11T11:26:07","date_gmt":"2026-08-11T05:56:07","guid":{"rendered":"https:\/\/www.tatacapital.com\/blog\/?p=54585"},"modified":"2026-08-11T11:26:56","modified_gmt":"2026-08-11T05:56:56","slug":"flat-vs-reducing-interest-rate","status":"publish","type":"post","link":"https:\/\/www.tatacapital.com\/blog\/personal-use-loan\/flat-vs-reducing-interest-rate\/","title":{"rendered":"Flat vs reducing interest rate: How it impacts your personal loan EMI"},"content":{"rendered":"\n

<\/p>\n\n\n\n

Flat and reducing interest rates may look similar at first, but they can result in very different borrowing costs. A reducing balance loan is generally more economical because interest is charged only on the outstanding principal. Understanding the difference, converting flat rates correctly, and comparing the APR in the KFS can help you make the right financial decision.<\/em><\/p>\n\n\n\n

A flat interest rate is calculated on the original loan amount throughout the tenure, while a reducing interest rate is charged only on the outstanding loan balance. <\/p>\n\n\n\n

A 10% flat interest rate is not the same as a 10% reducing interest rate. In fact, over a typical loan tenure, a flat rate often works out to roughly 1.7 to 1.9 times the equivalent reducing rate. That means a loan advertised at a 10% flat rate may cost almost the same as one offered at around 18% reduction. Understanding flat vs reducing interest rate is therefore essential before signing a loan agreement. This guide explains flat vs reducing interest rates, shows the math behind the difference, compares the EMI impact, and helps you evaluate two loan offers correctly.<\/p>\n\n\n\n

What is a flat interest rate?<\/strong><\/h2>\n\n\n\n

The flat interest rate meaning is simple. Under a flat interest rate, interest is calculated on the original loan amount for the entire tenure, even though your outstanding balance keeps reducing as you repay the loan. Because of this, the total interest payable is usually higher than under a reducing rate loan.<\/p>\n\n\n\n

Below are the formulas for calculating interest and EMIs under a flat interest rate:<\/p>\n\n\n\n

Interest = (Principal x Rate x Time) \/ 100<\/p>\n\n\n\n

EMI = (Principal + Total Interest) \/ Number of months<\/p>\n\n\n\n

What is a reducing balance interest rate?<\/strong><\/h2>\n\n\n\n

Under a reducing balance interest rate, interest is calculated on the outstanding loan amount instead of the original loan amount. After every EMI payment, your outstanding loan balance reduces.<\/p>\n\n\n\n

Although the EMI amount usually remains the same throughout the tenure, its composition changes over time. With time, the interest component gradually decreases and the principal repayment increases. <\/p>\n\n\n\n

Also Read –<\/strong> Tips for Lowering Home Loan Interest Rates<\/a><\/p>\n\n\n\n

Flat vs reducing interest rate: A quick comparison<\/strong><\/h2>\n\n\n\n

Let\u2019s understand the impact of flat and reducing rate of interest through an example. Suppose you have borrowed Rs. 5 lakhs for 5 years. At a 10% flat interest rate, the interest will be calculated on the entire Rs. 5 lakhs throughout the tenure. It will come out to Rs. 2.5 lakh. However, at a 10% reducing rate, the interest payable will be Rs. 1,37,411.<\/p>\n\n\n\n

For a detailed overview of the difference between flat and reducing interest rates, refer to the table below:<\/p>\n\n\n\n

<\/p>\n\n\n\n

Basis<\/strong><\/td>Flat Rate<\/strong><\/td>Reducing Rate<\/strong><\/td><\/tr>
Interest Calculation<\/td>On the original loan amount throughout the tenure<\/td>On the outstanding loan balance at a given point<\/td><\/tr>
EMI<\/td>Remains fixed<\/td>Usually remains fixed, but the composition changes<\/td><\/tr>
Total Interest Payable<\/td>Higher<\/td>Lower<\/td><\/tr>
Typically Used For<\/td>Short-term and consumer durable loans<\/td>Long-term loans, such as home loans<\/a>, personal loans<\/a>, and auto loans<\/a><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

How to convert a flat rate to a reducing rate?<\/strong><\/h2>\n\n\n\n

An online flat-to-reducing rate converter makes comparison easy. Just enter the loan amount, quoted flat rate, and tenure to estimate the equivalent reducing rate, EMI, and total interest payable.<\/p>\n\n\n\n

A 10% flat rate is roughly an 18% reducing rate. Suppose you take a loan of Rs. 10 lakh at a flat rate of 10% per annum. The table illustrates the converted reducing rates for various tenures:<\/p>\n\n\n\n

<\/p>\n\n\n\n

Tenure (In Years)<\/strong><\/td>Indicative Converted Reducing Rate<\/strong><\/td><\/tr>
2<\/td>17%<\/td><\/tr>
3<\/td>17.5%<\/td><\/tr>
4<\/td>18%<\/td><\/tr>
5<\/td>18.5%<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Which is better: A flat or reducing interest rate?<\/strong><\/h2>\n\n\n\n

At the same nominal rate, a reduced balance interest rate is always cheaper than a flat interest rate because interest is charged only on the outstanding loan amount. There is no situation where a 12% flat rate costs less than a 12% reducing rate. Before choosing a loan, always convert the quoted flat rate into its reducing-rate equivalent to make a fair comparison. <\/p>\n\n\n\n

Also Read<\/strong> – What is the base rate<\/a><\/p>\n\n\n\n


How to compare loan offers properly?<\/strong><\/h2>\n\n\n\n

From 1 October 2024, the Reserve Bank of India (RBI) requires banks and NBFCs to provide a Key Facts Statement<\/a> (KFS) before sanctioning term loans. The KFS shows the Annual Percentage Rate<\/a> (APR), which includes the interest rate, processing fee, and other mandatory charges, along with the amortization schedule. Instead of comparing flat or reducing rates, simply compare the APR across lenders.<\/p>\n\n\n\n

Conclusion<\/strong><\/h2>\n\n\n\n

Understanding flat vs reducing interest rates can save you a significant amount over the loan tenure. A reducing rate is always cheaper at the same nominal rate. The best way to compare loan offers is through the APR mentioned in the Key Facts Statement (KFS). You can also use the Tata Capital Personal Loan and EMI Calculator<\/a> to make an informed borrowing decision.<\/p>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

Flat and reducing interest rates may look similar at first, but they can result in very different borrowing costs. A reducing balance loan is generally more economical because interest is charged only on the outstanding principal. Understanding the difference, converting flat rates correctly, and comparing the APR in the KFS can help you make the […]<\/p>\n","protected":false},"author":1,"featured_media":54587,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[24],"tags":[],"yoast_head":"\nFlat vs reducing interest rate: Which costs you less?<\/title>\n<meta name=\"description\" content=\"A 10% flat rate is not a 10% reducing rate. 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