Expense Ratio – Tiny % that Matters a Lot

A fund's expense ratio looks small but can eat into your long-term returns. Understand what it is, how it works, and how to make cost-efficient investments.

07/06/2025

Introduction

" If your mutual fund gave 12% but you only received 10.8%, where did the 1.2% go?
Welcome to the Expense Ratio — a silent, ongoing fee you pay for fund management.
This tiny percentage covers fund manager salaries, research, operations, and marketing. But over time, even a 1% difference can mean lakhs in lost returns.

What Is Expense Ratio? 

 The expense ratio is the annual fee (in % of AUM) charged by the mutual fund to manage your money. For example: 

If you invest ₹1 lakh in a fund with a 1.5% expense ratio, you pay ₹1,500 per year.

 It’s deducted daily before the NAV is declared — so you never see the deduction directly, but it affects your net returns.

Types of Expense Ratios

  • Regular Plan – Higher expense (includes distributor commissions)
  • Direct Plan – Lower expense (no intermediaries)
Smart investors choose Direct Plans for better long-term returns.

  Real-Life Example: Arjun vs. Priya Arjun and Priya both invest ₹5 lakh in the same fund in 2020.

  • Arjun chooses a Regular Plan (expense ratio: 1.8%)
  • Priya chooses a Direct Plan (expense ratio: 0.8%)
After 10 years assuming 12% gross return:
  • Arjun gets ₹13.87 lakh
  • Priya gets ₹15.49 lakh
💰 Difference: ₹1.62 lakh — just due to a 1% lower expense ratio Conclusion Expense Ratio might look like a tiny leak — but over time, it can sink your boat. 

Always compare expense ratios, especially for long-term goals like retirement or children's education.

 Switch to Direct Plans where possible. Check the expense ratio before investing — it’s one of the most important cost metrics that affects your wealth creation.

Summary Table: Expense Ratio Impact

Fund Plan Avg. Expense Ratio 10 Yr Return @ 12% Gross Total Corpus (₹5L Invested) Net Gain Difference
Regular Plan 1.5% – 2.25% ~10.0% – 10.5% ₹13.2 – ₹13.9 lakh Lower
Direct Plan 0.5% – 1.0% ~11% – 11.5% ₹14.2 – ₹15.5 lakh Higher

Dr. Satish Vadapalli
Research Analyst