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What is expense ratio in mutual funds and why it compounds
The expense ratio is the annual fee a mutual fund charges as a percentage of your average assets under management. It is already reflected in the NAV and reduces your returns compounding over time.
In one line
The expense ratio is the annual cost charged by a mutual fund expressed as a percentage of average daily assets, so a fund with 1 lakh rupees invested and an expense ratio of 1% costs you 1,000 rupees per year in fees, and because it is deducted before NAV is published you never write a cheque for it, but it still reduces your compounded return directly.
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What the expense ratio covers and how it is charged
The expense ratio bundles together the fund manager's fee, the AMC's management charges, registrar and transfer agent fees, audit fees, marketing costs, and, in regular plans, the trail commission paid to the distributor who sold you the fund. SEBI caps the maximum expense ratio depending on the type and size of the fund. The charge is levied on your average daily net assets across the year.
The key point is that you never see a deduction in your account. The NAV is published after the expense ratio has already been subtracted from the portfolio's value. So if the fund's portfolio returned 12% but the expense ratio is 1%, the NAV grew by roughly 11%. The fee is invisible in your statement but it is absolutely real in your compounding math.
Direct vs regular plans and the compounding impact
Every mutual fund in India is available in 2 plan variants: direct and regular. In a regular plan the AMC pays a trail commission to the mutual fund distributor who got you to invest. This commission is included in the expense ratio, making the regular plan more expensive. In a direct plan there is no distributor, so no trail commission, and the expense ratio is lower. The same portfolio, managed identically, will show a higher NAV in the direct plan over time.
The difference in expense ratio between direct and regular plans might be 0.5% to 1% per year depending on the fund category. That looks small on an annual basis, but over 20 years of compounding the gap in your final corpus is significant, often 10 to 20% more wealth in the direct plan on the same investment. This is why informed investors use direct plans unless they genuinely need the advice that comes with a distributor.
FAQ3 reader questions · AEO-eligible
Common questions on what is expense ratio.
What is a good expense ratio for a mutual fund?
For equity funds, direct plans typically carry lower expense ratios than regular plans. Index funds and ETFs tend to have even lower expense ratios than actively managed funds. Lower is always better, all else equal, because the fee compounds against you.
Is the expense ratio charged every year?
Yes. It is an annual charge, but it is levied daily on your average assets, and it is reflected in the NAV every day. You pay it as long as you hold the fund.
What is the difference between direct and regular mutual fund plans?
Regular plans include a distributor commission in the expense ratio, making them more expensive. Direct plans cut out the distributor, so the expense ratio is lower and your NAV compounds faster over time. The underlying portfolio is identical.
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