What Is a Good Expense Ratio for Mutual Funds and ETFs?

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A good expense ratio depends mostly on how the fund is run. For an actively managed mutual fund, roughly 0.5% to 0.75% a year is considered good, and anything above 1.5% is considered high. Passively managed index funds and ETFs that track a benchmark such as the S&P 500 usually cost far less, so for them a good expense ratio sits well below the active range, often a small fraction of a percent. Within either group, lower is better as long as the fund still does the job you bought it for.

How the expense ratio works

The expense ratio covers a fund’s management fees and operating costs: portfolio management, administration, recordkeeping, marketing and similar expenses. It is calculated as:

Expense ratio = total annual operating expenses ÷ average net assets of the fund

You never receive a bill. The fund deducts the cost from its assets over the year, and the deduction shows up as a slightly lower share price (net asset value). The returns a fund reports are therefore already net of this fee. Each share class has its own expense ratio, published in the fund’s prospectus and on the fund company’s website.

Converting the percentage to dollars is simple: multiply your balance by the ratio. At 0.04%, a $1,000 holding costs $0.40 a year. At 1%, the same $1,000 costs $10.

Typical benchmarks by fund type

1. Index funds and passive ETFs: usually the cheapest category, because the manager buys the securities in an index and leaves them alone unless the index changes. Little research and little trading keep costs down.
2. Actively managed large-cap stock funds: good at 0.5% to 0.75%; ideally no higher than 1%.
3. Actively managed small-cap or international stock funds: these cost more to run, so a ratio up to just under 1.25% is still within the guideline.
4. Any active fund above 1.5%: considered high, and the fund needs a clear reason to justify it.

Mutual funds tend to cost more than ETFs mainly because most mutual funds are actively managed while most ETFs are passive. An index mutual fund and an index ETF tracking the same benchmark can have similar costs; the management style matters more than the wrapper.

Example: what the fee costs over time

Fees take a bigger share of your return than the small percentages suggest. If a fund earns 5% in a year and charges 2% in expenses, 40% of that return goes to fees.

A hypothetical longer view makes the compounding visible. Assume $10,000 invested for 20 years in two funds that each earn 6% a year before fees, with the fee subtracted from the return annually and no other costs or taxes:

The roughly one-percentage-point fee gap costs about $5,240, more than half of the original investment. For the active fund to match the index fund, its manager would need to beat the market by close to a full point every year just to break even after costs.

What drives a fund’s expense ratio

• Management style. Active managers research individual stocks and bonds and adjust exposure to companies and sectors, which costs more than tracking an index.
• Fund size. A small fund spreads its fixed costs over fewer assets, so its ratio is usually higher.
• Asset category. Large-cap funds are typically cheaper than small-cap funds. International funds can have higher operating costs because they may need staff in several countries.
• Specialization. Funds covering niche sectors or a wide mix of market capitalizations and regions need more expertise to manage.

Competition from index funds has pushed fees down across the industry, which raises the bar for any fund still charging at the high end.

Exceptions that change the answer

Gross vs. net expense ratio. The gross ratio is the fund’s full cost before any fee waivers or reimbursements; the net ratio is what shareholders actually pay after them. A lower net figure is better, but if a waiver is temporary, the gross ratio shows where your cost could go once it ends. Judge a fund on the net ratio while noting the gap and the waiver’s end date in the prospectus.

Costs outside the ratio. Sales loads (front-end or back-end charges), brokerage commissions and the fund’s internal trading costs are not included in the expense ratio. A fund with a reasonable ratio can still be expensive if it carries a load, so compare total costs, not just the expense ratio. Ongoing distribution (12b-1) fees, by contrast, are included in the ratio.

Category context. A ratio that is high for an S&P 500 index fund can be ordinary for an international small-cap active fund. Compare a fund with others that hold similar assets, not with the cheapest fund on the market.

Performance after fees. A higher fee is only acceptable if the fund delivers something you can’t get more cheaply, such as consistently stronger returns after costs or access to a strategy no index fund offers. Low-cost passive funds have often outperformed active management once fees and taxes are counted, so the burden of proof sits with the expensive fund.

FAQs

The Bottom Line

Anyone choosing between mutual funds or ETFs should compare expense ratios against funds that hold similar assets and judge each fund on its net ratio after waivers. Small fee differences compound into large dollar gaps over decades, so an expensive active fund has to show consistently stronger returns after costs or offer a strategy no index fund provides. Otherwise, the lower-cost fund is usually the better choice.