ETF vs Mutual Fund: Which Is Better for Long-Term Investors?
ETFs are usually cheaper and more tax-efficient, but mutual funds still have real advantages. Here is how to choose.
The short answer: In the ETF vs mutual fund debate, there is no universal winner. ETFs trade like stocks throughout the day, are usually cheaper on average and are often more tax-efficient in taxable accounts. Mutual funds trade once a day at a set price and make automatic investing of exact dollar amounts easy. For low-cost index investing, both can work well.
By the numbers: Morningstar's 2026 US Fund Fee Study found that the asset-weighted average expense ratio across US mutual funds and ETFs fell to 0.32% in 2025, and that ETFs cost roughly half as much as mutual funds on that basis. The Investment Company Institute reported that index equity ETFs averaged 0.14% in 2025.
Why it matters: fees come straight out of your returns every year. On a long-term investment, the gap between a 0.1% fund and a 1% fund can add up to a significant share of your final balance.
What is the difference between an ETF and a mutual fund?
Both are pooled investments: they collect money from many investors and buy a basket of stocks, bonds or other assets. Each share gives you a slice of the whole basket, so you get instant diversification. The differences are in how you buy them, what they cost and how they are taxed.
| ETF | Mutual fund | |
|---|---|---|
| How you trade | On a stock exchange, any time the market is open | Directly with the fund, once a day at the closing price (NAV) |
| Minimum investment | Price of one share, or less with fractional shares | Often a set minimum, from $0 to several thousand dollars |
| Average costs | Generally lower | Generally higher, though index mutual funds can be very cheap |
| Tax efficiency (taxable accounts) | Usually higher | Can distribute more capital gains |
| Automatic investing | Depends on your broker | Easy to invest exact amounts automatically |
| Active or passive | Mostly index, with fast-growing active ETFs | Both, with many actively managed funds |
Costs: why ETFs are usually cheaper
Most ETFs track an index, which keeps management costs low, and they do not usually pay sales commissions to advisors. Many mutual funds are actively managed by professionals who pick investments, which costs more. Some mutual fund share classes also carry sales loads or ongoing distribution fees.
Yes, but: the cheapest index mutual funds from large providers compete closely with ETFs on cost. Always compare the specific funds, not just the category. Look at the expense ratio, any sales load and trading costs such as the bid-ask spread on ETFs.
Taxes: why ETFs often win in taxable accounts
When a mutual fund sells holdings at a profit, perhaps to meet investor withdrawals, it may pass capital gains to all shareholders, who owe tax even if they did not sell. ETFs use a creation and redemption process that usually lets them avoid most of those distributions.
In tax-advantaged accounts such as a 401(k) or IRA, this difference matters much less, because gains are not taxed each year.
Trading and convenience
ETFs can be bought and sold any time the market is open, at the current price. That flexibility suits investors who want control over the price they pay. For long-term investors, intraday trading is rarely important and can encourage too much activity.
Mutual funds are priced once a day, which some investors find simpler. They also make it easy to invest an exact amount, such as $250 a month, automatically. Many brokers now offer fractional ETF shares and automatic ETF investing, narrowing this gap.
ETF vs mutual fund: which is right for you?
An ETF may suit you if…
- You invest in a taxable brokerage account and want to minimize capital gains distributions.
- You want the lowest possible costs for index investing.
- You want to buy and sell during the trading day.
A mutual fund may suit you if…
- Your workplace retirement plan offers mainly mutual funds.
- You want to invest fixed dollar amounts automatically without thinking about share prices.
- You want a specific actively managed strategy only available as a mutual fund.
The bigger decision for many investors is not ETF vs mutual fund but index vs active management. Our analysis of index funds vs active funds looks at what the long-term data shows.
How to compare two funds
- Check what it holds: which index or strategy, how many holdings and which regions or sectors.
- Compare total costs: expense ratio, sales loads, account fees and trading spreads.
- Look at tracking: for index funds, how closely returns match the index after fees.
- Review the size and track record: larger, established funds tend to be more liquid and stable.
- Consider taxes: which account you will hold it in and the fund's history of distributions.
New to investing? Start with our beginner's guide on how to start investing in stocks.
Fund investors who want regular income can also compare dividend-focused funds; see our guide to dividend investing.
The bottom line: ETFs are generally cheaper and more tax-efficient, while mutual funds offer simple automatic investing and are common in workplace plans. For most long-term investors, choosing a low-cost, diversified fund and sticking with it matters far more than which wrapper it comes in. This article is for information only and is not investment advice.
This article is for information only and is not investment, tax or legal advice. Prices and data may be delayed. Read our financial disclaimer.
Sources
Spotted an error? Email info@nodelyf.com. See our corrections policy.
