You need a brokerage account and money to invest before you can buy mutual funds

Buying a mutual fund is straightforward once you have an account open at a brokerage firm. The actual purchase takes minutes — you log in, search for the fund by its ticker symbol or name, enter the dollar amount you want to invest, and confirm the order. The fund company processes your order, usually by the end of that business day, and the shares appear in your account the next morning.

The real work happens before that: opening an account at a brokerage, funding it with cash, and deciding which mutual fund matches what you're trying to do with your money. Most people do this once and then add to the same account over time.

Key Takeaways

  • You must open a brokerage account with a firm like Fidelity, Vanguard, Charles Schwab, or your bank before you can purchase any mutual fund.
  • The account opening process takes 10 to 20 minutes online and requires your Social Security number, address, employment status, and funding source.
  • You transfer money into your brokerage account first, then use that cash to buy the mutual fund — the two steps are separate.
  • Mutual fund orders placed during market hours (9:30 a.m. to 4 p.m. Eastern time on weekdays) settle at that day's closing price.
  • Most brokerages charge no commission to buy mutual funds, though some funds charge an internal fee called an expense ratio.

Choose a brokerage firm and open an account

A brokerage account is a holding place for your money and investments. You cannot buy a mutual fund without one. The major firms that offer mutual funds to individual investors are Fidelity, Vanguard, Charles Schwab, E*TRADE, TD Ameritrade, and most traditional banks. Each one has a website where you can open an account online in about 15 minutes.

When you open an account, you'll choose between a taxable brokerage account (also called a standard or individual account) and a retirement account like an IRA or 401(k). A taxable account has no contribution limits and no rules about when you can withdraw money — you just pay taxes on gains when you sell. A retirement account has annual contribution limits but offers tax advantages: a traditional IRA lets you deduct contributions, and a Roth IRA lets you withdraw gains tax-free in retirement. Most people starting out open a taxable account first.

The process asks for your name, address, Social Security number, date of birth, employment status, and how you plan to fund the account (bank transfer, wire, or check). You'll also confirm that you understand the risks of investing. The firm will verify your identity and typically approve you within a few hours.

Fund your brokerage account with cash

Once your account is open, you need to move money into it. This is separate from buying the mutual fund — you're just getting cash into the account so you have something to spend. Most brokerages offer three ways to fund an account: electronic transfer from your bank (the slowest, usually 3 to 5 business days), wire transfer (fastest, same day or next morning), or mailing a check (slowest, 1 to 2 weeks).

Electronic transfer is free and the most common method. You log into your brokerage account, go to the "Deposit" or "Fund Account" section, and enter your bank's routing number and your account number. The brokerage initiates the transfer, and your bank processes it. You can usually transfer up to $25,000 at a time, though limits vary by firm and by how long you've had the account.

Wire transfers cost $10 to $25 but move money the same day. You call the brokerage, get their wire instructions and account number, and ask your bank to send the money. Check deposits are free but take the longest and are rarely used anymore.

Search for the mutual fund you want to buy

Once cash is in your account, you're ready to search for a specific mutual fund. Every mutual fund has a ticker symbol — a short code like VTSAX (Vanguard Total Stock Market Index Fund) or FSKAX (Fidelity Total Stock Market Index Fund). If you know the fund's name or symbol, you can search for it directly in your brokerage account.

The search results show you the fund's current price per share, its expense ratio (the annual fee the fund charges), and its performance over the past 1, 3, 5, and 10 years. You can also see what the fund invests in — stocks, bonds, a mix of both — and how much money is in the fund overall. Read this information before you buy, because it tells you what you're actually getting.

If you don't know which fund to buy, start by thinking about what you're investing for and how long you have until you need the money. A fund focused on U.S. stocks is more aggressive than a bond fund and works better for money you won't touch for 10 years. A bond fund is steadier and works better if you need the money in 3 to 5 years. Your brokerage's website usually has a fund screener tool that filters by investment type, risk level, and expense ratio.

Place your order and confirm the purchase

When you've found the fund you want, click on it and select "Buy" or "Invest." The brokerage will ask you to enter the dollar amount you want to invest — not the number of shares, just the amount in dollars. If you want to invest $5,000, you type $5,000. The system calculates how many shares that buys based on the fund's current price.

Review the order summary to make sure the fund name, dollar amount, and account type are correct. Then click "Confirm" or "Submit Order." The order is now placed. If you submit it before 4 p.m. Eastern time on a weekday, your order will execute at that day's closing price. If you submit it after 4 p.m. or on a weekend, it will execute at the next business day's closing price.

You'll receive a confirmation email with your order number, the number of shares you bought, the price per share, and the total amount invested. The shares will show up in your account the next morning, and you'll see them listed under your holdings.

Understand what happens after you buy

Once the mutual fund is in your account, you own a piece of every investment the fund holds. If the fund invests in 500 different stocks, you own a tiny fraction of all 500. The fund's manager buys and sells those investments over time, and you benefit from any gains. You don't have to do anything — the fund does the work.

You'll receive statements from your brokerage showing your holdings, their current value, and any gains or losses. If the fund pays dividends (which many do), the brokerage will automatically reinvest them into more shares of the same fund, unless you tell it not to. You can check your account balance anytime by logging into your brokerage website or app.

If you want to sell the fund later, you log back in, find it in your holdings, click "Sell," enter the dollar amount or number of shares, and confirm. The sale executes at that day's closing price, and the cash goes back into your brokerage account. You can then withdraw it to your bank or invest it in something else.

Know the costs and fees involved

Most brokerages charge no commission to buy or sell mutual funds — that's free. However, the mutual fund itself charges an internal fee called an expense ratio, which is a percentage of your investment taken out each year. A fund with a 0.05% expense ratio costs $5 per year on a $10,000 investment. A fund with a 1% expense ratio costs $100 per year on the same $10,000.

Index funds (funds that track a market index like the S&P 500) typically have low expense ratios, often between 0.03% and 0.20%. Actively managed funds (where a manager picks individual stocks) often charge 0.50% to 1.50% or higher. The expense ratio is deducted automatically from the fund's value, so you don't write a check — it just reduces your returns slightly each year.

Some older mutual funds also charge a sales load, which is an upfront fee of 3% to 6% when you buy. Most modern brokerages and fund companies have moved away from loads, but they still exist. When you search for a fund, the listing will say "No Load" or show the load percentage if one applies.

Frequently Asked Questions

Can I buy a mutual fund from a different company than my brokerage?

Yes. If you have an account at Fidelity, you can buy mutual funds from Vanguard, Charles Schwab, or any other fund company. Your brokerage acts as the middleman and holds the fund in your account. You don't need separate accounts at each fund company.

What time of day should I place my order?

It doesn't matter much. All orders placed before 4 p.m. Eastern time on a weekday execute at that day's closing price. Orders placed after 4 p.m. or on weekends execute at the next business day's closing price. You can't time the market by an hour or two, so place your order whenever it's convenient.

Do I have to invest a minimum amount?

Most mutual funds have a minimum initial investment of $1,000 to $3,000, though some have no minimum. A few funds allow investments as low as $100 if you set up automatic monthly contributions. Check the fund's details page on your brokerage website to see its minimum.

What's the difference between buying a mutual fund and buying individual stocks?

A mutual fund pools money from many investors and buys dozens or hundreds of investments. You own a small piece of all of them. A stock is a single company. Mutual funds are simpler for beginners because you get when ready diversification and a professional manager handles the buying and selling.

Can I lose all my money in a mutual fund?

It's possible but rare. If the fund invests in stocks and the market crashes, the fund's value drops, and you lose money. If the fund invests in bonds and interest rates rise, the value drops. But mutual funds don't go to zero unless the companies inside them all fail, which is extremely unlikely for a diversified fund.