What Is Expense Ratio in Mutual Funds?
Learn how the expense ratio affects your mutual fund returns. Discover what it includes, why it is charged, and how to evaluate it.
Author
Unifair Wealth — Knowledge Centre
Published
2026-09-11
Understanding the Expense Ratio
Running a mutual fund involves several costs. The Asset Management Company (AMC) has to pay for professional fund managers, research analysts, legal compliance, audits, and marketing. To cover these costs, the AMC charges a small annual fee known as the Expense Ratio.
The expense ratio is expressed as a percentage of the fund's total assets. For example, if a fund has an expense ratio of 1%, it means the AMC will deduct ₹1 for every ₹100 managed in the fund annually.
How Is It Deducted?
A common question investors ask is: "Do I have to pay the expense ratio separately from my bank account?"
The answer is No. The expense ratio is adjusted internally by the AMC. They calculate the expense daily and deduct a tiny fraction of it from the fund's Net Asset Value (NAV) before the daily NAV is published. Therefore, the return you see on your statement is already net of the expense ratio.
Why Does the Expense Ratio Matter?
While the expense ratio might look like a tiny number (often between 0.5% and 2.0%), it can significantly impact your wealth over long periods due to the effects of compounding.
Illustration
If a fund generates a gross return of 12% in a year, and its expense ratio is 1%, the net return provided to the investor will be approximately 11%.
Over a 20-year period, a 1% difference in returns can lead to a substantial difference in the final corpus size. This is why investors should be aware of the costs they are paying.
*Assumed rates for illustration purposes only. Actual returns may vary.
SEBI Regulations on Expense Ratios
In India, the Securities and Exchange Board of India (SEBI) heavily regulates mutual funds. To protect investors, SEBI has capped the maximum Total Expense Ratio (TER) that an AMC can charge. Furthermore, as the size of a fund (its Assets Under Management or AUM) increases, SEBI mandates that the expense ratio percentage must decrease, passing the economies of scale on to the investors.
Should You Only Choose Funds with the Lowest Expense Ratio?
Not necessarily. While a lower expense ratio is better, it shouldn't be the only criteria. For actively managed equity funds, paying a slightly higher expense ratio might be justified if the fund manager consistently outperforms the benchmark and peers over a long time horizon. However, for passive investments like Index Funds, the expense ratio is one of the most critical factors to compare.
Key Takeaways
- The expense ratio covers the cost of managing the mutual fund.
- It is deducted internally from the NAV on a daily basis.
- While costs are important, they should be evaluated alongside the fund's performance, risk metrics, and suitability to your goals.
Disclaimer: Mutual fund investments are subject to market risks. Read all scheme-related documents carefully before investing. AMFI-registered Mutual Fund Distributor | ARN-319188
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