What you need before you start
To open an investment account, you will need a Social Security number, a government-issued ID, proof of your current address, and basic information about your employment and income. Most brokerages ask for these during signup because federal law requires them to verify your identity and assess whether you can afford the investments you want to make.
You will also need to decide what type of account fits your situation: a standard taxable brokerage account if you are saving outside retirement, or a tax-advantaged account like an IRA or 401(k) if you are saving for retirement. The account type determines what you can invest in, how much you can contribute each year, and when you can withdraw money without penalties.
Finally, you need a way to fund the account — a bank account you can link for transfers, or a check you can mail. Most brokerages let you start with as little as $0 to $500, though some have no minimum at all.
Key Takeaways
- You will need your Social Security number, a government-issued ID, proof of address, and employment information to pass identity verification.
- Choose between a taxable brokerage account for general investing or a tax-advantaged account like an IRA if you are saving for retirement.
- Most brokerages let you open an account online in 10 to 20 minutes and fund it the same day through a bank transfer.
- After your account is open and funded, you can buy stocks, bonds, mutual funds, or exchange-traded funds depending on what the brokerage offers.
- Some brokerages charge monthly or annual fees; others charge only when you trade or hold certain investments.
Choosing between a taxable account and a retirement account
A taxable brokerage account has no contribution limits and no restrictions on when you withdraw money. You pay taxes on dividends and capital gains each year, even if you do not sell anything. Use this if you are saving for a goal within the next few years, already maxed out retirement contributions, or want complete flexibility.
A traditional IRA lets you deduct contributions from your taxes in the year you make them (if you meet income limits and have no workplace retirement plan). You pay taxes when you withdraw money in retirement. A Roth IRA takes after-tax money now but lets you withdraw it tax-free later. Both have annual contribution limits — currently $7,000 per year if you are under 50 — and penalize withdrawals before age 59½.
A 401(k) is offered through your employer and often includes a company match (assistance programs). Contributions come straight from your paycheck before taxes. You set it up through your employer's benefits portal, not through a brokerage, though the brokerage may be the company managing the plan behind the scenes.
The signup process and what each step requires
Most brokerages let you start online. You will enter your name, date of birth, Social Security number, and address. The brokerage runs this information against databases to verify you are who you say you are — this usually takes seconds to a few minutes. If there is a mismatch or a flag, the brokerage may ask you to upload a photo of your ID or provide additional documents.
Next, you answer questions about your employment, income, and investment experience. These are not tests you can fail — brokerages ask them to understand your situation and to comply with regulations that require them to assess whether an investment is suitable for you. If you say you have no income and want to buy highly volatile penny stocks, the brokerage may warn you or restrict certain trades, but it will not prevent you from opening the account.
You then choose your account type (taxable, IRA, 401(k), etc.) and link a bank account or provide payment details. The brokerage will deposit a small amount (usually $0.01 to $1) into your bank account to verify you own it. You log back in, confirm the amount, and your bank account is linked. From there, you can transfer money whenever you want.
The entire process takes 10 to 20 minutes. Some brokerages let you start trading immediately with the money you transfer; others hold it for one to three business days while the transfer clears.
Funding your account and making your first trade
Once your account is open, you move money in through an ACH transfer (the electronic system that moves money between banks). You log into your brokerage account, select "Deposit" or "Transfer Funds," choose your linked bank account, enter the amount, and confirm. The money usually arrives within one to three business days.
Some brokerages also let you mail a check or wire money directly, though wires cost $10 to $25 and checks take longer. A few brokerages offer fractional shares, meaning you can buy $50 worth of a $500 stock instead of having to buy a full share.
Once the money is in your account, you can buy stocks, bonds, mutual funds, or exchange-traded funds (ETFs) depending on what the brokerage offers. You search for the investment by name or ticker symbol, enter how many shares you want, and confirm the order. Most trades execute instantly during market hours (9:30 a.m. to 4 p.m. Eastern time on weekdays). Orders placed after hours or on weekends execute the next trading day.
Understanding account fees and what they cost you
Many brokerages charge no commission on stock or ETF trades, but some still charge per trade. Mutual funds may have a sales charge (called a load) of 1% to 5% of what you invest. Some brokerages charge monthly account maintenance fees ($5 to $25) if your balance is below a certain amount or if you do not meet other conditions.
Beyond trading fees, you pay the expense ratio of any mutual fund or ETF you own — this is an annual percentage that comes out of the fund's value automatically. 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 on the same amount. Over decades, this difference compounds significantly.
Some brokerages also charge for services like financial advice, account transfers to another brokerage, or paper statements. Read the fee schedule before you open an account — it is usually in a document called "Schedule of Fees" or "Pricing."
What happens after you open the account
Your brokerage sends you account statements (usually monthly or quarterly) showing what you own, what it is worth, and any fees charged. You can log in anytime to see your balance, buy or sell investments, or change settings. Most brokerages offer a mobile app so you can check your account from your phone.
If you own stocks that pay dividends or bonds that pay interest, the brokerage deposits that money into your account automatically. You can reinvest it or let it sit as cash. If you sell an investment for more than you paid, you owe capital gains tax — the brokerage reports this to the IRS on a form called a 1099, and you report it on your tax return.
If you want to move your account to a different brokerage later, you can request a transfer. The receiving brokerage handles most of the work, though it may take one to two weeks and could cost $50 to $100 if your old brokerage charges a transfer fee.
Common mistakes to avoid when opening an account
Do not open multiple accounts at different brokerages thinking you need to diversify where your money sits. One account at a reputable brokerage is enough — your money is protected by the Securities Investor Protection Corporation (SIPC) up to $500,000 per account type per brokerage if the brokerage fails.
Do not assume a lower fee always means a better brokerage. A brokerage with no trading commissions but high expense ratios on its mutual funds may cost you more over time than one with small commissions but low-cost index funds. Compare the total cost of owning what you actually plan to buy, not just the headline fee.
Do not rush to buy individual stocks if you are new to investing. Many people lose money picking stocks because they lack experience or information. A diversified index fund or target-date fund (which automatically adjusts as you age) is a safer starting point and requires less research.
Frequently Asked Questions
How long does it take to open an account?
The online signup takes 10 to 20 minutes. Identity verification is usually instant, but if the brokerage needs to review documents, it may take a few hours to a business day. You can often start trading immediately, though transfers from your bank take one to three business days to arrive.
Do I need a minimum amount of money to open an account?
Most brokerages have no minimum or a minimum of $0 to $500. Some brokerages that offer financial advice or premium services may require $2,500 to $25,000. Check the brokerage's website for its specific minimum before you sign up.
Can I open an account if I do not have a job?
Yes. You can open a taxable brokerage account with no income. If you want to open an IRA, you must have earned income (from a job, self-employment, or alimony) in the year you contribute. Retirement accounts require proof of income, but brokerage accounts do not.
What is the difference between a brokerage and a bank?
A bank holds your money and pays interest on deposits. A brokerage buys and sells investments on your behalf. Some companies (like Fidelity or Schwab) do both — they have a bank division and a brokerage division. When you open an investment account, you are working with the brokerage side.
Can I close my account whenever I want?
Yes. You can sell all your investments, withdraw the cash, and close the account anytime. There is no penalty for closing a taxable brokerage account. Closing a retirement account early may trigger taxes and penalties on the money you withdraw, depending on your age and account type.