What is an expense ratio in mutual funds?

Many investors focus on historical returns and peer comparisons when selecting a fund, but one often overlooked metric is the expense ratio-the fees charged for managing the fund. These fees are deducted from your annual returns. But, while the expense ratio may seem small, it can easily dwindle your wealth over decades.

Just as wealth compounds and grows, the fees do too!

Suppose you find a fund that has a solid track record of returns with an exorbitant expense ratio. Rarely would these high returns justify the high management fees. Instead, they'd eat into your returns, and the decline would become apparent over time. To find out which fund to choose is a matter of simple arithmetic.

We'll explain the entire process to ensure you keep more of your wealth.

What is an expense ratio in mutual funds?

The expense ratio in mutual funds is the annual fee charged by the fund to manage your investment. Expressed as a percentage, it covers the operational costs of managing the fund, including fund management, administrative services, and other associated expenses. This fee is deducted from the fund's assets, reducing the overall return on your investment.

To calculate the expense ratio, use the following formula:

Expense Ratio = (Total Expenses of the Fund) / (Total Assets Under Management (AUM))

For example, if a fund has Rs 100 crore in assets and its expenses amount to Rs 2 crore, the expense ratio will be 2 per cent.

What are the components of an expense ratio?

The expense ratio is not a single fee but rather a combination of different costs that the fund incurs to operate. Here are the key components that make up the expense ratio:

• Fund management fees : This is the fee paid to the asset management company (AMC) for managing the fund's investments. It is typically the largest portion of the expense ratio.
• Administrative costs : These costs include record-keeping, investor services, legal compliance, and other administrative tasks that keep the fund running smoothly.
• Distribution and marketing expenses : These cover advertising costs, agent commissions, and other marketing activities aimed at attracting new investors to the fund.
• Custodian and registrar fees : These fees are charged for maintaining and managing the fund's records, ensuring that everything is in order.

Suggested read: How does expense ratio affect returns?

Why does the expense ratio matter in mutual fund investing?

The expense ratio plays a significant role in determining your investment's performance. Over time, higher fees can erode your returns, especially with long-term investments where compounding comes into play. Lower expense ratios, on the other hand, can lead to better returns because more of your investment is working for you rather than being eaten up by fees.

How the expense ratio impacts your returns

Let's look at an example to understand how the expense ratio in mutual funds impacts your returns:

• Mutual Fund A : 12 per cent return with a 2 per cent expense ratio → Net return = 10 per cent
• Mutual Fund B : 12 per cent return with a 1 per cent expense ratio → Net return = 11 per cent

Even a 1 per cent difference in expense ratios can result in a significant difference in returns over the long term. This is especially important when you are looking at retirement savings or other long-term goals where every percentage point counts.

Suggested read: How expense ratio eats into your mutual fund gains

The expense ratio in mutual funds directly affects your returns. As mentioned earlier, higher expense ratios reduce your overall returns because more of your investment is being used to cover fund management and operating costs.

Small differences can have a big impact

Even small differences in the expense ratio can compound over time and lead to significant differences in returns. For example, if you invest Rs 1 lakh in a mutual fund with a 1 per cent expense ratio and another with a 2 per cent expense ratio, you will notice the difference over 10 or 20 years.

What are the expense ratio limits set by SEBI?

The Securities and Exchange Board of India (SEBI) regulates the maximum limits for the expense ratio in mutual funds. These limits are based on the fund's size (Assets Under Management, or AUM). Here's a breakdown of the maximum expense ratios according to SEBI guidelines:

The total expense ratio has a direct impact on the scheme's NAV - the lower the expense ratio of a scheme, the higher the NAV. Thus, this metric is essential when picking a mutual fund

How to minimise the impact of the expense ratio

You can try your hand at Index funds and ETFs . These funds follow a passive investment strategy and typically have truly negligible expense ratios. As they track market indices, fund managers don't require constant research and decision-making to manage the fund portfolios.

Suggested read: The Index Investing Revolution: Why Everyone's Talking About It

Direct vs regular mutual funds

There are two kinds of plans for every mutual fund. They are as follows:

• Regular funds : These funds come with higher expense ratios because they include commissions paid to distributors.
• Direct funds : These funds have lower expense ratios since they are purchased directly from the AMC, bypassing the need for a distributor or intermediary.

You must be thinking - direct plans are the obvious choice, right?

However, regular plans are the better choice if you don't have the experience to choose the right fund. These plans offer complete support, meaning you get some direction from the affiliated distributors. While every distributor would prefer pushing funds which offer higher commissions, there are some that are genuinely helpful.

On the other hand, investing in direct plans means that you'd have to do all the research. This can be quite a bit of work for a new investor.

Suggested read: The culture of commissions and why it's a problem

How can you check the expense ratio of a mutual fund?

The expense ratio in mutual funds is usually disclosed in the fund's fact sheet and the fund's prospectus. You can also find this information on the Association of Mutual Funds in India (AMFI) website, the mutual fund house's website, or on various investment platforms.

Before investing, always compare the expense ratios of similar funds to ensure you're not overpaying for a fund that doesn't justify its higher fees.

Does a lower expense ratio always mean a better fund?

Not necessarily. While a lower expense ratio in mutual funds is generally better, it is just one of many factors to consider. For example:

• Fund performance : A fund with a slightly higher expense ratio might outperform a low-cost fund in terms of returns.
• Fund manager expertise : A skilled fund manager can justify higher fees if they consistently deliver superior returns.
• Portfolio composition : The quality of the underlying assets in the fund is another crucial factor to evaluate.

For passive funds like index funds and ETFs, a lower expense ratio is generally better, as there is less active management involved. However, for actively managed funds, a higher expense ratio might be justified if the fund delivers consistent outperformance.

That said, you still need to do some basic calculations. Find out if the active fund's outperformance is enough to justify the expense ratio.

Suggested read: How to choose an index fund?

How do we minimise the impact of expense ratios on returns?

There are several ways to reduce the impact of the expense ratio in mutual funds on your returns:

• Choose direct plans over regular plans : Direct plans have lower expense ratios because there are no commissions to distributors.
• Invest in low-cost index funds & ETFs : These funds have some of the lowest expense ratios and are ideal for passive investors.

Conclusion

The expense ratio in mutual funds is a crucial factor that can significantly affect your returns over time. While a lower expense ratio is generally better, it's essential to evaluate other factors such as fund performance, the expertise of the fund manager, and the quality of the portfolio. By considering these aspects and comparing various funds, you can make smarter investment choices that help you maximise returns.

Also read: Active vs passive investing: Which is right for you?

This article was originally published on May 07, 2025.