What a brokerage account actually does

A brokerage account is a container that holds cash and securities—stocks, bonds, mutual funds, exchange-traded funds (ETFs)—and lets you buy and sell them. You deposit money into the account, the brokerage holds it, and you use that cash to place orders. When you sell something, the proceeds land back in your account as cash. The brokerage itself does not own your securities; it holds them in your name and executes the trades you request.

The brokerage makes money by charging commissions on trades, collecting fees for certain services, or earning interest on the cash sitting in your account. Most brokerages today charge zero commission on stock and ETF trades, but they may charge for options trading, mutual fund purchases, or advisory services. Some brokerages also offer margin accounts, which let you borrow money to buy securities—that borrowed money costs interest.

Your account is protected by the Securities Investor Protection Corporation (SIPC), a government-backed nonprofit that insures cash and securities in your account up to $500,000 if the brokerage fails. This protection does not cover losses from bad investment decisions; it covers the brokerage going under or losing your money through theft or mismanagement.

Key Takeaways

  • A brokerage account holds your cash and securities and executes buy and sell orders you place; the brokerage does not own what is inside.
  • Money you deposit sits in a cash sweep account earning interest, and you use that cash to buy securities or pay fees.
  • When you sell a security, the proceeds return to your account as cash within one to three business days, depending on the settlement timeline.
  • SIPC insurance protects up to $500,000 in your account if the brokerage fails, but does not cover investment losses.
  • Taxes on gains and dividends are your responsibility; the brokerage reports what you earned to the IRS, and you owe tax when you sell at a profit or receive dividends.

How cash moves in and out of your account

When you open a brokerage account, you link a bank account and transfer money into it. Most brokerages accept transfers via ACH (Automated Clearing House), which typically takes three to five business days. Some brokerages also accept wire transfers, which settle the same day or next day but may carry a fee. A few brokerages let you deposit a check by photograph through their mobile app, though this is less common for ongoing deposits.

Once the money lands in your brokerage account, it sits in a cash sweep account—usually a money market fund or a bank deposit account—where it earns a small amount of interest. The interest rate varies by brokerage and changes with market conditions. You can see the rate on your account dashboard. This cash is what you use to buy securities.

When you sell a security or receive a dividend, the money returns to your cash sweep account. Stock and ETF sales settle in T+1 (one business day), meaning the cash appears in your account one business day after you sell. Mutual funds settle in T+1 as well, though some mutual funds have longer settlement windows. Once the cash is there, you can withdraw it back to your bank account, which takes another three to five business days via ACH.

What happens when you place a trade

You log into your brokerage account, search for a security by ticker symbol or company name, and enter an order: how many shares, at what price, and whether it is a market order (buy or sell immediately at the current price) or a limit order (buy or sell only if the price hits a specific level). Market orders execute almost instantly during market hours; limit orders wait until the price matches or the order expires.

The brokerage sends your order to an exchange—the New York Stock Exchange (NYSE), NASDAQ, or another venue—where it is matched with a buyer or seller. This matching happens in milliseconds. Once matched, the trade is confirmed, and your account is debited the cost of the purchase or credited the proceeds of the sale. The brokerage shows the trade in your account history immediately, but the cash or securities do not settle until T+1.

If you place an order outside market hours—before 9:30 a.m. or after 4 p.m. Eastern Time on a weekday—the order queues and executes when the market opens. Limit orders that do not fill by the end of the day expire unless you set them to "good till canceled," which keeps them active until you cancel them or they fill.

Fees and costs you may encounter

Most brokerages charge zero commission on stock and ETF trades. However, you may pay fees in other scenarios. Options trades often carry a per-contract fee, typically $0.50 to $1.00 per contract. Mutual fund purchases may carry a sales load (a percentage of the purchase price) or a transaction fee, depending on the fund and the brokerage. Some brokerages charge an annual account maintenance fee if your balance falls below a minimum, though this is rare among major brokerages.

If you use margin—borrowing money from the brokerage to buy securities—you pay interest on the borrowed amount. Margin interest rates vary by brokerage and by how much you borrow; they typically range from 5% to 12% annually. You also pay interest if you short-sell a security (bet that its price will fall), because you are borrowing shares from the brokerage.

Some brokerages charge inactivity fees if you do not trade for a certain period, though this is uncommon. Wire transfer fees, if the brokerage charges them, typically run $10 to $25 per wire. Check your brokerage's fee schedule before opening an account; most post it on their website.

How taxes work on your trades and dividends

When you sell a security at a profit, you owe capital gains tax on the difference between what you paid and what you sold it for. If you held the security for more than one year, it is a long-term capital gain, taxed at a lower rate (0%, 15%, or 20%, depending on your income). If you held it for one year or less, it is a short-term capital gain, taxed as ordinary income at your regular tax rate.

When you receive a dividend from a stock or mutual fund, you owe tax on that dividend in the year you receive it. may have access to dividends (from U.S. stocks held for more than 60 days around the dividend date) are taxed at the long-term capital gains rate. Non-may have access to dividends are taxed as ordinary income. The brokerage does not withhold tax; you owe it when you file your tax return.

At the end of each tax year, the brokerage sends you a Form 1099-B (for sales) and a Form 1099-DIV (for dividends), and also reports this information to the IRS. You use these forms to calculate your tax liability. Some brokerages offer tax-loss harvesting tools that automatically sell losing positions to offset gains, reducing your tax bill.

What happens if the brokerage fails or your account is compromised

If your brokerage goes bankrupt or is shut down by regulators, SIPC insurance protects your account up to $500,000 ($250,000 in cash). This means if the brokerage loses your money through mismanagement or theft, SIPC will reimburse you up to that limit. This protection does not cover losses from bad investment decisions or market downturns.

If someone gains unauthorized access to your account and trades without your permission, contact the brokerage immediately. Most brokerages have fraud protection policies and will investigate. If the brokerage is found liable, they will restore your account. If a hacker sells your securities at a loss, the brokerage may cover the loss, but this depends on the brokerage's policy and the circumstances.

To protect your account, use a strong, unique password and enable two-factor authentication if the brokerage offers it. Do not share your login credentials or one-time codes. If you receive a suspicious email claiming to be from your brokerage, do not click links; instead, log in directly to your account through the brokerage's website or app.

Transferring securities between brokerages

If you want to move your account to a different brokerage, you can transfer securities in-kind, meaning the securities move as-is without being sold. This is called an ACAT transfer (Automated Customer Account Transfer Service). The receiving brokerage initiates the transfer, and it typically takes five to seven business days. During the transfer, you cannot trade the securities being moved.

Alternatively, you can sell everything at your current brokerage, withdraw the cash, and buy the same securities at the new brokerage. This triggers capital gains tax on any profits, so it is less efficient than an in-kind transfer if you have unrealized gains.

Some brokerages offer cash bonuses to new customers who transfer accounts above a certain size. These bonuses are taxable income in the year you receive them, so factor that into your decision.

Frequently Asked Questions

Can I lose more money than I deposited?

In a standard brokerage account, no—your losses are capped at what you invested. If you buy $5,000 worth of stock and it goes to zero, you lose $5,000. However, if you use margin (borrow money to buy securities), you can lose more than your deposit because you owe the borrowed amount back to the brokerage regardless of what the securities are worth.

How long does it take to withdraw money from my brokerage account?

If you sell a security, the cash appears in your account in one business day (T+1). Withdrawing that cash back to your bank account takes another three to five business days via ACH. Wire transfers are faster—usually same-day or next-day—but may carry a fee. Plan for five to seven business days total if you need the money quickly.

Do I have to report my brokerage account to the IRS?

You do not file a separate form for the account itself, but you must report all gains, losses, and dividends on your tax return. The brokerage reports this information to the IRS on Forms 1099-B and 1099-DIV, so the IRS already knows what you earned. Failing to report it can trigger an audit.

What is the difference between a brokerage account and a retirement account?

A brokerage account has no contribution limits and no tax advantages—you pay tax on gains and dividends every year. A retirement account (like an IRA or 401(k)) has contribution limits but offers tax breaks: traditional accounts defer tax until withdrawal, and Roth accounts let earnings grow tax-free. Retirement accounts also have withdrawal restrictions and penalties if you take money out before age 59½.

Can I use a brokerage account to day trade?

Yes, but if you make more than three day trades in five business days, the SEC classifies you as a pattern day trader and requires you to maintain at least $25,000 in your account. If your balance falls below $25,000, you cannot day trade until it rises again. This rule applies to margin accounts; cash accounts have no day-trade limit but require trades to settle before you can use the proceeds again.