Note: This article discusses Indonesian financial products and markets. The principles apply globally, though specific products, regulations, and tax treatments vary by country.

Note: This article discusses Indonesian mutual fund products and regulations. The principles of expense ratios apply globally, though specific percentages and tax treatments vary by country.

Mutual Fund Expense Ratios: Small Fees, Big Impact

You’ve been diligently investing regularly in mutual funds every month. Annual returns look decent — maybe 8-12% per year. But there’s one small number that few people pay attention to, and this number is quietly eating tens of thousands of dollars from your investment returns over the long term: expense ratio.

Expense ratio is the annual fee charged by investment managers for managing your mutual fund. The number might look small — 1%, 1.5%, or 2% per year — but the impact on your long-term portfolio is massive.

Let’s discuss why this fee matters, what reasonable expense ratios are, and how to choose funds with low fees.

What Is Expense Ratio?

Expense ratio (or cost ratio) is the percentage of total mutual fund assets used to cover operational costs annually.¹

This fee covers:

• Investment manager fee (management fee) — salaries for the team selecting stocks/bonds
• Custodian bank fee — the bank storing mutual fund assets
• Transaction costs — commissions for buying/selling securities on the exchange
• Administrative costs — auditing, reporting, compliance

Simple Calculation Example

Say you invest IDR 100 million in an equity fund with 2% annual expense ratio:

• Year 1: Fee = IDR 100,000,000 × 2% = IDR 2,000,000 deducted from NAV
• Year 2 (assuming value rises to IDR 110 million): Fee = IDR 110,000,000 × 2% = IDR 2,200,000
• And so on…

Important: You won’t see this deduction in your account. The expense ratio is already deducted from NAV daily before returns are displayed. So when you see a 10% annual return, that’s net after fees.

Benchmark Expense Ratios

Based on Fund Fact Sheet analysis from various major investment managers, here are benchmark expense ratios by fund type:

Note: Indonesian index fund expense ratios (0.5-1%) are higher than US equivalents (0.03%-0.2%), but still much lower than Indonesian active funds (1.5-3%). This is the structural advantage of passive investing.

#Learn about active vs passive fund differences to understand cost impacts.

Why Are Equity Funds More Expensive?

Equity funds have higher expense ratios because:

1. More active trading — buying and selling stocks more frequently = higher transaction costs
2. Larger research teams — need analysts to pick the best stocks
3. Higher complexity — fundamental, technical, macroeconomic analysis

But the question is: does the additional fee justify additional returns?

Spoiler: Mostly not.

Warning: Expensive Funds Are Not Always Better

This is the biggest myth in the mutual fund industry: “High expense ratio = better management quality”.

Data Speaks: SPIVA Reports

Based on the S&P Indices Versus Active (SPIVA) Scorecard, over the last 10 years:

• About 90% of active equity funds underperform their benchmark index²
• Funds with 2.5% annual expense ratios on average don’t produce higher returns than index funds with 0.8% expense ratios

This means: You pay more for worse results.

Simulation: Impact of Expense Ratios Over 20 Years

Say you invest IDR 100 million today with an assumed market return of 10% per year (before fees). Here’s your investment value after 20 years:

A 1.5% expense ratio difference (from 0.5% to 2%) erases IDR 135 million from 20-year investment results. That’s equivalent to:

• Multiple years’ worth of savings for many Indonesian workers
• A significant down payment on a home in a tier-2 city
• University tuition for a child

This is not a small fee.

How to Check Your Mutual Fund’s Expense Ratio

1. Download Fund Fact Sheet (FFS)

Every investment manager must publish a Fund Fact Sheet monthly per OJK regulations. You can download the FFS from:

• Investment manager website (e.g., BNP Paribas AM, Mandiri Manajemen Investasi, Bahana TCW)
• Investment platforms (Bibit, Bareksa, IPOT) — usually there’s a “Documents” or “Fund Fact Sheet” button
• OJK website (reksadana.ojk.go.id)

2. Find the “Fees” or “Operating Expense” Section

In the FFS, look for a table or section titled:

• “Mutual Fund Fees”
• “Operating Expense Ratio”
• “Total Expense Ratio (TER)”

Usually written like this:

Total Operating Expenses: 1.96% per year (as of December 31, 2025)

3. Compare with Benchmark

Compare your fund’s expense ratio with the table above. If it’s higher than the reasonable range, ask yourself:

• Does this fund consistently outperform the index for at least 5 years?
• Is the return difference greater than the fee difference?

If the answer is no, consider switching to a fund with lower fees.

Beware of Platforms That Hide Expense Ratios

Some fintech platforms are not transparent about fees.

Red Flags:

❌ Doesn’t show expense ratio on product page — you have to manually download FFS ❌ Only shows “No subscription fee” but doesn’t mention expense ratio ❌ Focuses on promoting high returns without mentioning management fees

Green Flags:

✅ Expense ratio clearly stated on product detail page ✅ FFS easily accessible ✅ Platform compares expense ratios between similar products ✅ Has “Fee Estimate” feature for long-term simulation

Fee transparency is a sign of a credible platform.

Strategy: Choose Funds with Low Expense Ratios

1. Prioritize Index Funds

Index funds only follow a market index (like IDX30, LQ45, or SRI-KEHATI), so they don’t need a large research team.

Result: Expense ratios of 0.5-1% for Indonesian index funds (much lower than active funds at 1.5-3%).

Indonesian index fund options:

• Bahana IDX30 (expense ratio ~0.7%)
• Pinnacle IDX30 (expense ratio ~0.6%)
• BNP Paribas SRI-KEHATI (expense ratio ~1.0%, ESG-focused)
• Simas IDX30 (expense ratio ~0.8%)
• Manulife Indonesia Stock Index (tracks LQ45, expense ratio ~0.9%)

For complete comparison, see our Index Funds Guide.

2. Avoid Funds with Fees >2%

Unless the fund has a track record of consistently outperforming the index for 10+ years, there’s no reason to pay expense ratios >2%.

SPIVA data proves: most expensive funds fail to beat the index.

3. Review Portfolio Annually

Expense ratios can change every year. Check Fund Fact Sheets at least once a year to ensure fees haven’t suddenly increased.

If they rise significantly (e.g., from 1.5% to 2.2%), consider switching.

Conclusion: Small Fees, Big Impact

A 1-2% expense ratio might sound small, but over 20-30 years, this fee can erode tens of thousands of dollars from your investment results.

Simple principles:

1. Choose funds with expense ratios below benchmark (see table above)
2. Prioritize index funds for core portfolio (expense ratio 0.03-1%)
3. Only choose expensive active funds (>2%) if there’s consistent evidence of outperforming the index for 5-10 years (very rare)
4. Check Fund Fact Sheet once a year to monitor fee changes

Remember: You can’t control market movements. But you can control investment costs.

Low fees = more money working for you, not for the investment manager.

References

• POJK No. 23/POJK.04/2016 on Mutual Funds in the Form of Collective Investment Contracts — OJK Regulations (fee transparency requirements)
• OJK (Otoritas Jasa Keuangan), Indonesia’s Financial Services Authority — reksadana.ojk.go.id for fund information
• S&P Dow Jones Indices, “SPIVA Scorecard,” published annually — spglobal.com/spdji
• Bogle, John C., The Little Book of Common Sense Investing, 2007 (Wiley) — classic book on the dangers of high investment fees

Related Articles

• Index Funds: Complete Guide for Passive Investors
• Active vs Passive Funds: Which Should You Choose?
• How to Read Mutual Fund Prospectuses
• Bibit vs Bareksa vs IPOT: Platform Comparison
• How to Evaluate Portfolio Performance