What Is an Expense Ratio?

Updated August 2026 3 min read BudgetAnalyzer Editorial

The expense ratio is the annual fee a mutual fund charges to manage your money, expressed as a percentage of assets. It covers fund management, administration and distribution, and is deducted daily from the fund’s NAV — so the returns you see are always already net of it.

Quick summary
What
Annual fund fee, as a % of assets
Deducted
Daily from NAV — never billed to you
Index funds
Roughly 0.1–0.5%
Active equity funds
Roughly 0.5–2.25%
Capped by
SEBI, on a sliding scale by fund size

Why the expense ratio matters

A 1% difference in expense ratio sounds like nothing. Over 25 years of compounding it is not: on a ₹20,000 monthly SIP, the gap between a 0.2% index fund and a 1.5% active fund can run into tens of lakhs of final corpus. It is the only variable in investing you control with complete certainty.

It is also the clearest reason to prefer a direct plan over a regular one. Regular plans embed distributor commission in the expense ratio — often 0.5–1% more every year, for the same portfolio and the same fund manager.

How the expense ratio works

The fund calculates its daily expenses as 1/365th of the annual ratio and deducts them before declaring the day’s NAV. You never see a charge, which is precisely why the cost is easy to ignore — the fee is invisible, but it is taken every single day whether the fund gained or lost.

SEBI caps expense ratios on a sliding scale: the larger the fund’s assets, the lower the maximum it may charge. Passive funds and ETFs sit far below the cap because they simply track an index, while actively managed funds charge more for research and stock selection — a premium that only pays off if the manager beats the benchmark after fees.

A real Indian example of the expense ratio

1.3% over 25 years

Two investors each run a ₹20,000 monthly SIP for 25 years, and both funds earn 12% before fees. Sameer’s index fund charges 0.2%; Rakesh’s active fund charges 1.5%.

Sameer’s corpus grows at an effective 11.8% and Rakesh’s at 10.5%. On ₹60 lakh invested, that 1.3% gap costs Rakesh well over ₹50 lakh of final corpus — not because his fund performed worse, but purely because of the fee. The fund would have had to consistently beat the index by more than 1.3% every year just to break even.

Benefits

A single number that makes fund costs comparable
Already reflected in NAV, so quoted returns are net of it
Capped by SEBI, so it cannot rise without limit
Choosing a low ratio is a guaranteed, risk-free improvement

Common mistakes

Buying a regular plan when the direct plan is identical but cheaper
Dismissing a 1% difference as trivial over long horizons
Judging a fund on expense ratio alone, ignoring tracking error
Not noticing that the ratio changed after a fund grew or was merged

Best practices

Always choose the direct plan of a fund you have decided on
Prefer low-cost index funds and ETFs for core equity exposure
Compare the ratio within the same category, not across categories
Recheck the ratio once a year — it does change

Direct plan vs regular plan

Direct planRegular plan
Distributor commissionNoneBuilt into the expense ratio
Typical extra cost—About 0.5–1% a year
Portfolio and managerIdenticalIdentical
Bought viaAMC website, RTA, SEBI-registered platformsDistributors and agents

Frequently asked questions about the expense ratio

What is a good expense ratio in India?

For index funds and ETFs, roughly 0.1–0.5% is competitive. For actively managed equity funds, under about 1% for a direct plan is reasonable. Anything approaching the SEBI cap deserves justification from performance.

How is the expense ratio charged?

It is deducted daily from the fund’s assets before the NAV is declared, at 1/365th of the annual rate. You are never billed separately, so the returns you see are already net of the fee.

Does a lower expense ratio mean better returns?

Not automatically, but it is a guaranteed head start. A cheaper fund keeps more of the same gross return, so a higher-cost fund has to consistently outperform by at least the fee difference just to match it.

What is the difference between direct and regular plans?

They hold the same portfolio and the same manager, but regular plans include distributor commission in the expense ratio — commonly 0.5–1% more each year. Over decades that difference alone can cost lakhs.

Try it with your own numbers

How BudgetAnalyzer uses this

BudgetAnalyzer tracks the invested amount and current value of each holding side by side, so the gap that fees quietly create between what you put in and what you have is visible rather than buried in a NAV.

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Sources
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