Stock Market · Mutual funds, deeper

Expense ratio deep dive

The expense ratio is the annual fee charged by the mutual fund, expressed as a percentage of assets. Most investors glance at it and move on. They shouldn't. It's the single most reliable predictor of long-term performance.

What's included in expense ratio

• Fund manager salary
• Research and analysts
• Distributor commissions (in Regular plans only)
• Marketing and operations
• Custodian and audit fees
• GST

SEBI caps on expense ratio

For equity funds:

• First ₹500 crore AUM: 2.25%
• Next ₹250 crore: 2.00%
• AUM > ₹50,000 crore: 1.05%

Larger funds have lower caps, but most actively managed equity funds charge close to the maximum.

The research is clear

Multiple long-term studies show: low expense ratio funds outperform high expense ratio funds in the SAME category. The reasoning is simple. Every 1% of expense is 1% of guaranteed underperformance versus identical strategy without that fee.

> If two funds invest in similar stocks, the one with lower expense ratio will mathematically outperform the other over time. This is one of the few certainties in investing.

Index funds vs active funds

Index funds: 0.05-0.20% expense ratio.

Active large cap funds: 1.5-2.0% expense ratio (regular), 0.5-1.0% (direct).

For large cap funds, the expense gap alone often exceeds the active manager's added value. Making index funds the rational choice.

What's NOT included

• Securities Transaction Tax (STT). Fund pays on every trade
• GST on STT and brokerage
• Brokerage costs

These additional 'invisible' costs add another 0.2-0.5% drag in actively traded funds. Index funds with low turnover avoid most of this.

Takeaway. Expense ratio is the most reliable predictor of long-term mutual fund returns. Index funds (0.05-0.20%) consistently beat active large cap funds (1.5%+) over time. Every 1% saved is 1% added to your compounded returns.