The expense ratio is the annual fee a mutual fund or ETF charges for running your money, expressed as a percentage of the assets it manages. It covers the fund manager's salary, research, custodian and registrar charges, audit, marketing, and, in a regular plan, the commission paid to whoever sold you the fund.
The critical thing to understand is that you never see it. It is not billed, not debited, and never appears on your statement.
How it is actually charged
The fee is accrued daily and deducted from the fund's assets before the NAV is published. So the NAV you see every evening is already net of costs.
A fund with a 1.5% annual expense ratio deducts roughly 1.5 divided by 365 of its assets each day. If the underlying portfolio gained 10% in a year, the NAV rises by about 8.5%. Nothing tells you the other 1.5% existed.
This invisibility is why cost is the most consistently underweighted factor in Indian investing. People will switch banks over a Rs 500 annual card fee and hold a fund quietly charging them Rs 15,000 a year on a Rs 10 lakh corpus.
What it costs over a lifetime
Take a Rs 10,000 monthly SIP for 25 years, assuming the underlying portfolio returns 12% before fees.
| Expense ratio | Final corpus (approx) | Cost of the fee |
|---|---|---|
| 0.2% | Rs 1.85 crore | Baseline |
| 1.0% | Rs 1.66 crore | About Rs 19 lakh |
| 1.8% | Rs 1.48 crore | About Rs 37 lakh |
| 2.2% | Rs 1.40 crore | About Rs 45 lakh |
The percentages look like rounding errors. The rupee figures do not. The reason is that the fee is charged on the whole balance every year, so it grows exactly as your corpus grows, and the money removed also stops compounding.
An active fund charging 1.8% instead of an index fund charging 0.2% is not competing to beat the market. It is competing to beat the market by 1.6 percentage points a year, every year, which very few sustain.
Typical ranges in India
SEBI caps expense ratios on a sliding scale, with the cap falling as a scheme's assets grow. In practice:
- Index funds and large ETFs: often 0.05% to 0.4%
- Actively managed equity, direct plan: roughly 0.5% to 1.2%
- Actively managed equity, regular plan: roughly 1.5% to 2.2%
- Debt funds: generally lower, often 0.2% to 1%
- Liquid funds: the lowest, frequently under 0.3%
Direct versus regular is the single biggest lever
A direct plan and a regular plan of the same scheme hold an identical portfolio managed by the same person. The only difference is that the regular plan's expense ratio includes distributor commission.
That gap is commonly 0.5% to 1% a year. Switching to direct plans is the one portfolio improvement available to you that requires no forecasting, no skill and no risk. You simply stop paying a commission.
The trade-off is that you give up the distributor's advice and hand-holding. If that advice is genuinely stopping you from panic-selling in a crash, it may be worth more than the fee. If it consists of being sold whichever fund pays the highest commission, it is not.
What the expense ratio does not include
- Exit load, charged if you redeem within a defined period, commonly around 1% within a year
- Brokerage you pay your broker when buying or selling an ETF
- Securities transaction tax and other statutory charges
- Your own tax on capital gains when you sell
So the true cost of owning a fund is a little higher than the headline ratio.
How to use this when choosing a fund
For two funds tracking the same index, the expense ratio and tracking error are essentially the only things that differ, so pick the cheaper one. See index fund.
For active funds, cost is not the only consideration but it is the only one you can know in advance. Past returns may not repeat. The fee definitely will. A fund charging 2.2% needs to be reliably excellent to be worth it, and reliability is exactly what active management struggles to deliver.
Check the current ratio on the scheme's factsheet or the AMFI website rather than assuming, because it changes as fund size changes.