Expense RatioTER
The expense ratio is the annual fee a fund charges to cover management and operating costs, expressed as a percentage of assets. A 0.20% ratio costs $20 a year on every $10,000 invested, deducted from the fund's returns.
Fund fees look tiny — a fraction of a percent — but they come out every year, quietly reducing returns. Over decades the difference between a cheap and an expensive fund can be tens of thousands of dollars. This entry explains what the expense ratio covers, how it is charged and how much it really costs.
- Category
- Trading Basics
- Reading time
- 3 min
- Also called
- Fund expense ratio, Total expense ratio, TER
- Updated
The expense ratio in plain words
An expense ratio is a fee charged by an investment company to manage shareholders' money.1
Passive index funds usually have lower fees and expenses than actively managed funds.2
Over time, higher fees and expenses can significantly lower investment returns.2
How the expense ratio works, step by step
Costs add up
Management, administration, other operating costs.
Expressed as a %
Of average fund assets.
Deducted daily
From the fund's value, not billed. See Net Asset Value.
Returns are net
Reported performance is after fees.
Compare funds
Same strategy, lower cost. See Index Fund.
Check other costs
Loads and trading costs too. See Trading Fees and Commissions.
Worked examples
Example 1 — Yearly cost
$100 a year$25,000 in a fund with a 0.40% expense ratio.
| Annual fee | $25,000 × 0.40% = $100 |
The fee is a percentage of the money invested, taken by the fund company to manage it.1
Example 2 — 30-year difference
≈ $88k lost to fees$50,000 grows 7% a year for 30 years: fund A charges 0.05%, fund B 1.00%.
| Fund A (6.95%) | ≈ $375,300 |
| Fund B (6.00%) | ≈ $287,200 |
| Difference | ≈ $88,100 |
Higher fees and expenses can significantly lower long-term returns.2
Example 3 — Same index, different cost
Pay less for the same thingTwo S&P 500 funds: 0.03% and 0.50%.
| Extra cost per $100,000 | $470 a year |
When funds track the same index, the cheaper one usually wins. See Benchmark.
Typical expense ratios
| Aspect | Typical range | Note |
|---|---|---|
| Broad index ETF | 0.03%–0.20% | Cheapest |
| Active mutual fund | 0.50%–1.50% | Must beat the index to justify |
| Specialist / thematic ETF | 0.40%–0.95% | Narrower focus |
| Hedge fund | Management + performance fee | See Two and Twenty |
How investors use expense ratios
Choosing funds
Lower cost for the same exposure. See Exchange-Traded Fund.
Judging active managers
Fees vs alpha. See Alpha.
Planning returns
Net returns drive outcomes. See Compound Interest.
Comparing wrappers
Funds of funds stack fees. See Fund of Funds.
Advantages and disadvantages
Advantages
- Simple way to compare fund costs.
- Transparent and published.
- Strong predictor of net returns.
Disadvantages
- Excludes trading costs inside the fund.
- Excludes loads and account fees.
- Cheapest isn't always best for niche needs.
Going deeper
Read as far as you need. Each level builds on the one before it.
You never see a bill
Beginner
The fee is taken from the fund's assets, so it's easy to overlook — but it reduces your returns every year. See Total Return.
Active vs passive
Intermediate
Passive management usually means less trading and lower fees than active funds.2 See Active and Passive Management.
What's included
Advanced
Expense ratios cover the fund company's charges for managing shareholders' money.1 Brokerage commissions the fund pays when trading are usually reported separately.
Common mistakes
Ignoring small differences
They compound over decades.
Forgetting other fees
Loads and account fees add up. See Fund Sales Loads.
Paying active fees for index-like funds
Check what you're getting.
Choosing only on cost
Tracking quality matters too.
Check your understanding
Test yourself before moving on. Each answer comes with an explanation.
Key points to remember
- The expense ratio is a fund's annual fee.
- It's a percentage of assets, taken automatically.
- Index funds are usually cheapest.
- Small fee gaps compound into large sums.
- It doesn't include all costs.
Frequently asked questions
What is a good expense ratio?
Do ETFs have expense ratios?
Is the expense ratio included in fund returns?
Further learning
- Index Fund
The low-cost option.
- Compound Interest
Why fees compound.
Sources
This article is written in our own words. The sources below support the specific facts, rules and figures marked with a number in the text. Links open the original publisher’s page.
- Corporate Finance Institute. Expense Ratio (opens in a new tab) Checked .
- Investor.gov (SEC). Index Fund (glossary) (opens in a new tab) Checked .
Educational content, not financial advice. Examples use hypothetical prices and simplified costs; actual fees, margin rules and regulations vary by broker, market and country. We are not affiliated with any publisher linked above. Last reviewed . Report an error or request a source credit.