What Is Expense Ratio in Mutual Funds?
The hidden fee that eats your returns. How expense ratio works, direct vs regular difference, and why it can cost you lakhs.
What Is Expense Ratio? The Hidden Fee Eating Your Returns
You invest ₹10,000 in a mutual fund. Every year, a small percentage disappears — silently, automatically. That's the expense ratio. Understanding it could save you lakhs over your investing lifetime.
Expense Ratio Explained
If a fund has a 1.5% expense ratio and you have ₹1,00,000 invested, you pay approximately ₹1,500 per year. You never see this charge separately — it's deducted before the NAV is published.
How TER Is Calculated
The expense ratio is deducted daily, not in one annual lump sum:
- Annual TER: 1.5%
- Daily deduction: 1.5% ÷ 365 = 0.0041% per day
- On ₹1,00,000: About ₹4.10 deducted from NAV daily
This daily deduction means the NAV you see has already accounted for the expense ratio. Your actual return = Fund's gross return minus TER.
Direct vs Regular: The TER Gap
| Fund Type | Direct TER | Regular TER | Difference |
|---|---|---|---|
| Large-cap Equity | 0.3-0.8% | 1.0-1.5% | 0.5-0.7% |
| Mid-cap Equity | 0.5-1.0% | 1.2-2.0% | 0.7-1.0% |
| Index Fund | 0.05-0.2% | 0.3-0.6% | 0.2-0.4% |
| Debt Fund | 0.1-0.5% | 0.5-1.0% | 0.3-0.5% |
The 20-Year Impact
A "small" 1% difference in expense ratio has a massive impact over time.
Same fund, gross return 14%, different expense ratios:
- TER 0.5% (Direct Index Fund): Final value = ₹1,40,28,000 (effective 13.5%)
- TER 1.5% (Regular Active Fund): Final value = ₹1,17,15,000 (effective 12.5%)
- TER 2.0% (High-cost Fund): Final value = ₹1,07,85,000 (effective 12.0%)
Ramesh invested ₹36,00,000 total. The difference between 0.5% and 2.0% TER is ₹32,43,000 — almost his entire investment amount gone to fees!
Fees don't just take money — they take the compounding on that money. ₹1,500 lost to fees in year 1 would have grown to ₹13,500 by year 20. That's the real cost.
SEBI's TER Limits
SEBI caps the maximum expense ratio based on fund size (AUM):
- First ₹500 Cr: Up to 2.25% for equity, 2.0% for debt
- Next ₹250 Cr: Up to 2.0% for equity
- Above ₹50,000 Cr: Minimum 1.05% for equity
Larger funds tend to have lower expense ratios because costs are spread across more investors.
What's an Acceptable Expense Ratio?
- Index funds: Under 0.2% (some are as low as 0.05%)
- Large-cap active funds: Under 0.8%
- Mid/Small-cap funds: Under 1.2%
- Debt funds: Under 0.5%
If a fund charges significantly more than these ranges, it needs to justify it with consistently superior performance.
How to Find a Fund's Expense Ratio
- AMFI website: Search the fund and check the factsheet
- Fund house website: Monthly factsheets list current TER
- Apps like Groww/Kuvera: Show TER on the fund page
- Value Research/Morningstar: Compare TER across similar funds
A small-cap fund with 1.0% TER might be reasonable, but a large-cap index fund at 1.0% is expensive. Compare expense ratios with other funds in the same category.
Does Lower TER Mean Better Fund?
Not always — but it helps. A fund with 2% TER needs to beat its benchmark by 2% just to match an index fund. Very few active managers consistently do this. That's why index funds (0.05-0.2% TER) are gaining popularity in India.
Key Takeaways
- Expense ratio is the annual fee deducted from your fund's NAV daily
- Even 0.5% higher TER can cost ₹15-30 lakh over 20 years
- Direct plans always have lower TER than Regular plans
- Index funds have the lowest TER (0.05-0.2%)
- Always check and compare TER before investing
If a fund has a 1.5% expense ratio and you've invested ₹2,00,000, how much do you pay approximately per year?
Explore funds with low expense ratios: Fund Explorer | Calculate returns: SIP Calculator
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