An ETF expense ratio of 0.20% may look almost insignificant. On a $10,000 investment, it represents roughly $20 a year. But investment fees have a hidden long-term cost: they reduce not only the money investors keep today, but also the returns that money could have generated in the future. Over 10, 20 or 30 years, even a seemingly modest annual fee can make a noticeable difference to the value of an investment portfolio.
What Is an ETF Expense Ratio?
Exchange-traded funds (ETFs) have become popular among investors seeking diversified exposure to stocks, bonds and other assets without having to select individual securities. One of their main advantages is relatively low operating costs, particularly when compared with many actively managed investment funds.
However, ETFs are not necessarily free to own.
Every fund needs to cover expenses associated with portfolio management, administration, custody, accounting and regulatory compliance. These ongoing costs are reflected in a metric known as the ETF expense ratio.
The expense ratio expresses a fund’s annual operating expenses as a percentage of its average net assets. According to the U.S. Securities and Exchange Commission (SEC), these expenses are paid from fund assets rather than being billed directly to individual shareholders.
For investors, the calculation is straightforward.
An ETF with an annual expense ratio of 0.20% costs approximately $2 per year for every $1,000 invested, assuming the portfolio value remains unchanged.
On a $10,000 investment, that translates into approximately $20 annually. For a $50,000 portfolio, the equivalent amount would be $100, while a $100,000 investment would incur around $200 in annual expenses.
The important detail is that the expense ratio applies to the value of the investment, not just the original amount invested or the profits earned.
As the portfolio grows, the dollar amount represented by the same percentage generally increases.
How Are ETF Expense Ratios Actually Deducted?
Unlike brokerage commissions, an ETF expense ratio does not usually appear as a separate transaction in an investor’s account.
Investors do not receive an annual invoice asking them to pay the fund manager. Instead, operating expenses are accrued within the ETF and reflected in its net asset value (NAV).
These expenses are generally accrued daily, gradually reducing the assets available to generate investment returns.
For example, suppose an ETF’s underlying investments generate a gross annual return of 7%.
With an expense ratio of 0.20%, the investor’s approximate return after this expense would be 6.80%, assuming no other differences or costs.
A fund charging 0.50% would deliver approximately 6.50% under the same assumptions.
The difference may appear small in any individual year. However, it becomes more significant when repeated over long investment periods.
It is also worth remembering that published ETF performance figures generally already reflect the fund’s operating expenses. Investors should therefore avoid subtracting the expense ratio again when evaluating historical returns reported after fees.
Read also: What Is an ETF? How Exchange-Traded Funds Actually Work
How Much Does a 0.20% ETF Fee Cost Over 10, 20 and 30 Years?
To understand the long-term impact of ETF fees, consider a hypothetical investor who places $10,000 into an ETF and leaves the money invested for several decades.
The comparison uses three different annual expense ratios: 0%, 0.20% and 0.50%.
All three investments follow the same assumptions:
- Initial investment: $10,000
- Annual return before fund expenses: 7%
- Investment periods: 10, 20 and 30 years
- No additional contributions or withdrawals
- All investment income reinvested
- Expense ratios remain unchanged
- Taxes, trading costs and inflation excluded
For simplicity, annual returns are calculated as 7% minus the respective expense ratio, with annual compounding. Actual ETF expenses accrue throughout the year, so real-world results may differ slightly.
ETF Expense Ratio Comparison: The Long-Term Numbers
| Investment period | No annual fee | 0.20% expense ratio | 0.50% expense ratio |
|---|---|---|---|
| 10 years | $19,672 | $19,307 | $18,771 |
| 20 years | $38,697 | $37,276 | $35,236 |
| 30 years | $76,123 | $71,968 | $66,144 |
Source: Illustrative calculations based on an initial $10,000 investment and a constant 7% annual return before expenses. Figures are rounded to the nearest dollar. The zero-fee scenario is a hypothetical benchmark, not a recommendation of a particular ETF.
These results show that even a fee of just 0.20% can create a measurable gap between the theoretical gross investment return and the amount ultimately accumulated by the investor.
After 10 Years: A 0.20% Fee Costs Approximately $365
During the first decade, the difference remains relatively modest.
Without any fund expenses, the $10,000 investment would grow to approximately $19,672.
An ETF charging 0.20% annually would instead reach around $19,307, leaving the investor with $365 less.
At a 0.50% expense ratio, the investment would be worth approximately $18,771, representing a shortfall of $900 compared with the zero-fee scenario.
For investors planning to hold an ETF for only a few years, the difference between relatively low expense ratios may be less important than other factors, including portfolio composition, liquidity and investment risk.
After 20 Years: The Cost Grows to More Than $1,400
Over two decades, the effect becomes considerably more visible.
The investment without an annual fee would reach approximately $38,697.
With a 0.20% expense ratio, the portfolio would grow to around $37,276.
That represents a difference of approximately $1,421.
A fund charging 0.50% would produce a final value of roughly $35,236, leaving the investor approximately $3,460 behind the hypothetical zero-fee investment.
The gap is no longer explained solely by the direct operating expenses paid along the way. It also includes the investment returns that those deducted amounts could otherwise have generated.
After 30 Years: A Small Fee Makes a Much Bigger Difference
The strongest effect appears over a 30-year investment horizon.
Assuming the same 7% annual gross return, the original $10,000 investment would grow to approximately $76,123 without ongoing fund expenses.
At a 0.20% annual expense ratio, the final portfolio value would be around $71,968.
The difference reaches approximately $4,155.
With a 0.50% annual fee, the investor would accumulate approximately $66,144, almost $10,000 less than the zero-fee scenario.
Perhaps more importantly, the difference between the 0.20% and 0.50% ETFs would amount to approximately $5,824, despite both investments starting with exactly the same capital and earning the same hypothetical return before expenses.
This illustrates why even a difference of a few tenths of a percentage point can matter for long-term investors.
Why ETF Fees Compound Against Investment Returns
Most investors are familiar with compound interest, where investment returns generate additional returns over time.
Fees work in the opposite direction.
When an ETF deducts operating expenses from its assets, those assets are no longer available to participate in future investment growth.
The immediate deduction may be small, but its opportunity cost increases as the investment period becomes longer.
Consider an investor choosing between two otherwise identical ETFs, one charging 0.20% and the other 0.50%.
The annual difference is only 0.30 percentage points.
On a $10,000 portfolio, that initially represents roughly $30 a year. However, the long-term impact is not limited to repeatedly subtracting $30.
As the portfolio grows, the dollar value of the expenses increases. At the same time, every dollar paid in additional fees loses the opportunity to generate future investment returns.
This is why the relationship between investment fees and time is particularly important.
According to the SEC’s investor education guidance, even relatively small ongoing fees can substantially reduce the long-term value of an investment portfolio.
Read also: ETF Trading Explained: What Happens Between Buy and Sell
Is a 0.20% Expense Ratio Considered Expensive?
Whether an ETF expense ratio of 0.20% is competitive depends on the type of fund and the investment strategy it follows.
Broad-market index ETFs, particularly those tracking major U.S. stock indices, often compete heavily on costs. Investors can find products with annual expense ratios substantially below 0.20%.
On the other hand, ETFs focused on particular industries, smaller markets, specialized asset classes or complex investment strategies may charge more.
Actively managed ETFs may also have higher expenses because their investment decisions require ongoing research, portfolio management and trading activity.
This means that comparing expense ratios makes the most sense when the funds provide similar investment exposure.
An ETF tracking a broad U.S. stock market index cannot automatically be considered a better investment than an emerging-market or bond ETF simply because its annual fee is lower.
The underlying assets, investment objectives and risks are different.
Even two ETFs following the same benchmark can differ in their replication methods, liquidity and ability to track the underlying index.
The cheapest ETF is not necessarily the best ETF, but lower fees are a meaningful advantage when other important characteristics are comparable.
Expense Ratio vs. Total ETF Costs: What Investors Should Check
Although expense ratios are one of the most visible measures of ETF costs, they do not capture every expense associated with owning and trading a fund.
For example, ETF investors may also face brokerage commissions when buying or selling shares. The bid-ask spread, which represents the difference between the buying and selling prices, can create another indirect trading cost.
Some ETFs may trade at a premium or discount to their underlying net asset value, particularly during periods of market volatility.
Currency conversion expenses can also be relevant for international investors purchasing ETFs denominated or traded in foreign currencies.
Another important consideration is tracking difference.
This measures how closely an ETF’s actual performance matches its benchmark over a given period. Tracking difference reflects not only the expense ratio but also other factors, potentially including portfolio transaction costs, replication techniques, taxes within the fund and securities-lending revenue.
Therefore, an ETF with a slightly higher expense ratio can occasionally deliver a better net result than a cheaper competitor following the same benchmark.
Investors should examine actual performance and the fund’s structure rather than relying exclusively on the headline annual fee.
A useful starting point is the FINRA Fund Analyzer, which allows investors to assess investment fund costs and their potential long-term impact.
How to Find an ETF’s Expense Ratio
Investors can usually find an ETF’s annual expense ratio on the fund provider’s official website, in its prospectus or in its other regulatory disclosures.
The prospectus provides a breakdown of operating expenses and explains which charges are included in the fund’s reported costs.
In some cases, investors may encounter both gross and net expense ratios.
The gross expense ratio reflects expenses before any applicable fee waivers or reimbursements. The net expense ratio accounts for those reductions and may therefore be more relevant to the amount currently borne by investors.
However, temporary fee waivers can expire, potentially increasing the fund’s future operating expenses.
When comparing ETFs, investors should make sure they are looking at comparable fee measures and check whether any discounts are temporary.
Frequently Asked Questions About ETF Expense Ratios
Do investors pay ETF expense ratios every year?
Yes. An ETF’s expense ratio represents an ongoing annual cost, but investors generally do not pay it through a separate annual transaction. Expenses are accrued within the fund and reflected in its net asset value and investment returns.
Is a 0.20% ETF expense ratio charged on profits or the entire investment?
The expense ratio is calculated relative to the fund’s average net assets, not just the profits generated. As the value of an investor’s holdings changes, the dollar amount attributable to the annual percentage changes accordingly.
Do ETF fees still apply when the market falls?
Yes. Operating expenses generally continue to apply even during periods of negative investment performance. If an ETF’s underlying investments lose value, ongoing fees can make the investor’s net return slightly worse.
Is it worth switching ETFs to save 0.10% in annual fees?
It depends on the investment amount, expected holding period and costs associated with switching. A lower expense ratio may improve long-term returns, but brokerage expenses, taxes, bid-ask spreads and differences in fund structure can offset some or all of the potential savings.
The Bottom Line: Small ETF Fees Can Have Large Long-Term Consequences
An ETF expense ratio of 0.20% may seem negligible when expressed as an annual percentage. For an investor starting with $10,000, it initially represents only about $20 a year.
Yet over 30 years, assuming a constant 7% annual return before expenses, that fee reduces the hypothetical portfolio value by approximately $4,155 compared with a zero-fee investment.
The difference becomes even larger when comparing funds with substantially different expense ratios.
For long-term investors, the key lesson is not to avoid every ETF that charges more than the absolute minimum. It is to understand what the fund provides in exchange for its ongoing expenses.
Investment strategy, diversification, tracking quality and risk remain essential considerations.
But when two ETFs offer comparable exposure and performance characteristics, lower costs provide an advantage that can become increasingly valuable over time.
Investors cannot control future market returns, but they can pay close attention to the fees that reduce how much of those returns they ultimately keep.
Disclaimer: This article is for educational purposes only and does not constitute investment advice. The calculations are hypothetical illustrations, not forecasts or guarantees. Actual investment returns fluctuate, and investors may experience losses.
