A good expense ratio depends on the type of ETF, but most investors should aim for under 0.20% for broad market funds

An expense ratio is the annual cost of owning an ETF, expressed as a percentage of your investment. If an ETF has a 0.10% expense ratio and you own $10,000 of it, you pay $10 per year in fees. That money comes out automatically—you don't write a check, but it reduces your returns.

What counts as "good" varies by fund type. A 0.05% ratio on a total stock market fund is excellent. A 0.50% ratio on a specialized sector fund might be reasonable. The key is comparing funds that track the same thing, because you're paying for the privilege of owning that specific basket of stocks or bonds.

Lower ratios compound over time. A 0.10% difference might seem small, but over 30 years it can cost you tens of thousands of dollars in lost growth. That's why expense ratio is one of the few things you can control as an investor.

Key Takeaways

  • Broad market index ETFs should cost under 0.20% annually, with many available for 0.03% to 0.10%.
  • Bond ETFs typically range from 0.05% to 0.20%, depending on whether they track government bonds or corporate bonds.
  • Specialized or actively managed ETFs often cost 0.40% to 1.00% or higher because they require more research or frequent trading.
  • Comparing expense ratios only makes sense between funds tracking the same index or asset class—a 0.30% tech fund is not expensive if all tech funds cost that much.

Expense Ratios by Fund Type

Different ETF categories have different cost benchmarks because they require different levels of work to manage.

Total stock market and broad index funds track a fixed list of companies, so they require minimal trading. You should find these for 0.03% to 0.12%. Vanguard, Fidelity, and iShares all offer versions under 0.10%. If you see one above 0.20%, there's usually no reason to buy it—a cheaper alternative exists.

Bond ETFs typically cost 0.05% to 0.20%. Government bond funds are usually cheaper (0.05% to 0.10%) because the bonds are standardized and easy to trade. Corporate bond funds cost slightly more because the manager has to research individual companies. High-yield bond funds can run 0.40% to 0.50% because they require more active monitoring.

Sector or industry ETFs (technology, healthcare, energy) usually cost 0.08% to 0.40%. These are still mostly passive—they track a list of companies in that sector—but there are fewer of them, so competition is lower and fees are higher.

International and emerging market ETFs often cost 0.10% to 0.50% because trading stocks in other countries is more expensive. Currency hedging, if included, adds cost.

Actively managed ETFs cost 0.50% to 2.00% or more. A manager is making trading decisions, conducting research, and paying for analysts. You're paying for their judgment, not just holding a fixed list of stocks.

Why Expense Ratios Matter Over Time

A small difference in fees compounds dramatically. Consider two $10,000 investments in broad market ETFs over 30 years, assuming 7% annual returns:

An ETF charging 0.05% grows to approximately $76,000. The same investment in an ETF charging 0.50% grows to approximately $71,000. The difference is $5,000—and that gap widens the longer you hold and the more you add to the account.

The math gets worse with larger accounts. If you're investing $100,000 or more, a 0.45% difference in fees costs you $45,000 per year in lost compounding over three decades. That's real money, and it's money you never see because it's never added to your account in the first place.

This is why expense ratio is one of the few variables you can control. You can't predict market returns. You can't time the market. But you can choose the cheapest fund tracking the index you want to own.

How to Compare Expense Ratios

The expense ratio appears in every ETF's fact sheet and on financial websites like Morningstar, Yahoo Finance, and your brokerage platform. Look for the line labeled "Expense Ratio" or "ER"—it will show a percentage like 0.08% or 0.45%.

When comparing, make sure you're looking at funds tracking the same thing. Comparing a total U.S. stock market fund to a technology fund is meaningless—they own different stocks. Instead, compare all the total U.S. stock market funds available to you, or all the technology funds, and pick the cheapest one.

Some brokerages offer their own versions of popular index funds at lower costs. Vanguard's total stock market ETF (VTI) costs 0.03%. Fidelity's version (FSKAX) costs 0.015%. Schwab's version (SWTSX) costs 0.03%. If you have an account at one of these brokerages, their in-house fund is often the cheapest option.

Don't confuse expense ratio with trading costs. When you buy or sell an ETF, you may pay a commission (though most brokerages now charge zero commissions). That's separate from the expense ratio, which you pay every year you hold the fund.

When a Higher Expense Ratio Might Make Sense

Most of the time, you should buy the cheapest fund tracking what you want. But there are narrow cases where a higher ratio is worth considering.

If you want exposure to a very specific market—say, dividend-paying stocks or small-cap value companies—and only one or two ETFs track it well, you may have no choice but to pay a higher ratio. In that case, the question isn't whether 0.40% is good; it's whether you want that exposure badly enough to pay it.

Some investors use actively managed ETFs because they believe the manager's stock-picking will outperform the index by more than the fee costs. This is a bet, not a fact. Most active managers underperform their index over 10+ years, which means you'd have been better off buying the cheap index fund. But if you want to make that bet, at least know you're making it.

Tax efficiency can sometimes justify a higher ratio, though this matters mainly for taxable accounts (not retirement accounts). Some ETFs are structured to minimize capital gains distributions. If you're in a high tax bracket, the tax savings might offset a slightly higher fee. This is rare and worth discussing with a tax professional.

Red Flags and Common Mistakes

Avoid ETFs with expense ratios above 0.50% unless you have a specific reason—and be honest with yourself about what that reason is. "I like the name" is not a reason.

Don't assume an ETF is good because it's from a big company. Vanguard, Fidelity, and iShares all offer cheap index funds, but they also offer expensive actively managed funds. Check the ratio for the specific fund you're considering.

Don't confuse a low expense ratio with low cost overall. Some cheap ETFs have wide bid-ask spreads (the difference between the buy and sell price), which means you lose money when you trade them. This matters most if you're buying or selling frequently. For long-term buy-and-hold investors, expense ratio is the dominant cost.

Watch out for ETFs that have closed or merged. If an ETF is shrinking and losing assets, it may close, forcing you to sell and potentially triggering capital gains. Newer or less popular ETFs sometimes have higher expense ratios because they haven't attracted enough money yet. Stick with funds that have at least $100 million in assets.

Frequently Asked Questions

Is 0.10% a good expense ratio?

For a broad market index fund, 0.10% is decent but not the best available. You can find total stock market ETFs for 0.03% to 0.05%. For a specialized fund like a sector or international ETF, 0.10% is quite good. Always compare against other funds tracking the same index.

What's the difference between expense ratio and management fee?

Expense ratio is the total annual cost, including the management fee, administrative costs, and other operating expenses. Management fee is just the portion paid to the fund company for running the fund. The expense ratio is the number that matters to you.

Do I pay the expense ratio every year even if I don't sell?

Yes. The expense ratio is deducted automatically from the fund's assets every year. You don't see a bill, but your share count grows slightly slower than it would without the fee. Over decades, this adds up.

Can I negotiate a lower expense ratio?

No. The expense ratio is set by the fund company and applies to all investors. However, you can choose a different fund with a lower ratio, or you can move your money to a brokerage that offers cheaper versions of the same index.

Should I switch from a 0.30% ETF to a 0.10% ETF if I already own the first one?

If you're in a taxable account, selling may trigger capital gains taxes that offset the fee savings. In a retirement account (401k, IRA), there are no tax consequences, so switching makes sense if the new fund tracks the same index. Talk to a tax professional if you're unsure.