How to Open a Brokerage Account: Step by Step, From Documents to First Trade

Opening a brokerage account takes about 15 minutes online and usually costs nothing: every major U.S. broker we track has a $0 minimum to open a standard account. The decisions that matter come before and after the form: which account type, cash or margin, where your uninvested cash goes, and what kind of order you place first. This guide walks through each step in order, with the rules behind them.

The Short Answer

1. Have your Social Security number, a government ID, your address and your bank account details ready.
2. Pick a broker, then pick the account type: an IRA for retirement money, a regular taxable account for everything else.
3. Choose a cash account unless you have a specific reason to borrow.
4. Link your bank and transfer money. Stock and ETF trades settle the next business day.
5. Check where uninvested cash goes; at some brokers the default pays almost nothing.
6. Use a limit order for your first trade so you control the price.

What You Need Before You Start

Federal anti-money-laundering rules (the Customer Identification Program rule for broker-dealers, 31 CFR 1023.220) require a broker to collect at least your name, date of birth, address and an identification number before opening the account. For U.S. persons the number is a Social Security number or taxpayer ID. A residential street address is required; a P.O. box alone is not enough.

• Social Security number (also needed for tax forms such as the 1099).
• Driver's license or passport; some brokers ask you to upload a photo if they cannot verify you electronically.
• Home address and phone number.
• Employment details: employer name and occupation. If you are associated with another brokerage firm, FINRA Rule 3210 requires your employer's written consent before you open the account.
• Financial profile: income, net worth, investing experience and goals. Brokers use these to decide what you can trade (for example, options levels).
• Bank routing and account numbers for the transfer.
• Beneficiary names and dates of birth, if you want to add them now (recommended).

Step 1: Pick a Broker

Commissions are no longer a way to choose: stock and ETF trades are $0 at all the large brokers. The differences are the account minimum, fractional shares, what you pay to leave, and where your cash sits.

Broker	Minimum to open	Fractional shares	Fee to transfer everything out
Fidelity	$0	Yes	$0
Charles Schwab	$0	Yes	$50
Vanguard	$0	Yes	$100
E*TRADE	$0	Yes	$75
Interactive Brokers	$0	Yes	$0
Robinhood	$0	Yes	$100
Webull	$0	Yes	$75
Merrill Edge	$0	No	$49

The transfer-out fee matters more than it looks: it is what leaving costs if the broker disappoints you. Many brokers reimburse the fee your old broker charges when you move an account to them; ask before you transfer.

Step 2: Pick the Account Type

Account	Use it for	Key rule
Individual taxable (brokerage) account	Investing you may need before retirement	No contribution limit; dividends and gains are taxed each year you receive or realize them
Joint taxable account	Couples investing together	Both owners have access; ask about the ownership type (for example, joint with right of survivorship)
Roth IRA	Retirement savings, tax-free later	2026 limit $7,500 across all your IRAs ($8,600 at 50 or older), and not more than your taxable compensation; income limits apply
Traditional IRA	Retirement savings, possibly tax-deductible now	Same $7,500 / $8,600 combined limit; withdrawals are taxed
Custodial account (UGMA/UTMA)	Investing for a child	The money legally belongs to the child and passes to them at the age your state sets

You can open several accounts at the same broker under one login. A common setup is a Roth IRA first (up to the limit), then a taxable account for anything above it. Our Roth IRA calculator shows what the tax-free growth is worth.

Step 3: Cash or Margin

A cash account lets you buy only with money you have deposited. A margin account lets you borrow from the broker against your investments, and you pay interest on the loan.

• FINRA requires at least $2,000 of equity to trade on margin, and brokers can set higher house minimums.
• With margin you can lose more than you deposited, and the broker can sell your holdings without asking if the account falls below its maintenance requirement.
• If you trade frequently during the day on margin, FINRA's intraday margin rules apply (they replaced the old "pattern day trader" rule on June 4, 2026). Repeatedly running intraday deficits without covering them can get margin trading frozen for 90 days.

For a first account, choose cash. You can usually upgrade later. In an IRA you cannot borrow on margin at all.

In a cash account, pay for purchases with settled money. Buying a stock with proceeds that have not settled and then selling it before they do is a "good faith violation", and repeated violations get the account restricted.

Step 4: Fill In the Application

1. Enter your identity details and Social Security number.
2. Answer the employment and financial-profile questions honestly; they decide which products you are approved for.
3. Confirm your tax status on the W-9 form built into the application (this prevents backup withholding on your dividends).
4. Add beneficiaries: for an IRA, a designated beneficiary; for a taxable account, ask about a transfer-on-death (TOD) registration. Both let the account pass outside probate.
5. Read and accept the customer agreement, then set up two-factor authentication on the login.

Approval is often instant. If the broker cannot verify your identity electronically, it will ask for a document upload, which can add a day or two.

Step 5: Fund the Account

• Bank transfer (ACH): free and the most common. Many brokers let you buy right away with a pending deposit, but you cannot withdraw that money until it clears.
• Wire transfer: faster, but your bank may charge a fee.
• Account transfer (ACATS): move investments from another broker without selling them. See below.

Since May 28, 2024, most U.S. stock and ETF trades settle in one business day (T+1), under an SEC rule. When you sell, the cash is available to withdraw the next business day.

Step 6: Choose What Happens to Your Cash

Money you deposit but have not invested sits in a "core" or "sweep" position. What it earns depends on the broker and on what you choose, and the default is sometimes close to zero. When we checked on October 19, 2026, Schwab's default uninvested cash earned 0.01%, while its money market fund, which you have to buy yourself, paid much more. Fidelity has you pick a money market core position; Vanguard uses its federal money market settlement fund.

If you plan to hold cash for more than a few days, check the rate on the sweep and consider a money market fund. Rates at each broker are on our broker comparison page.

Step 7: Place Your First Trade

• Market order: buys right away at the best available price, which can be worse than the last quote, especially at the open or for thinly traded stocks.
• Limit order: buys only at your price or better. If the price never reaches it, nothing happens. This is the safer default.
• Dollar amount instead of shares: with fractional shares you can invest, say, $100 in a fund that costs $500 a share.
• Trade during regular hours (9:30 a.m. to 4:00 p.m. Eastern). Extended-hours trading has thinner volume and wider spreads.

For most long-term investors the first purchase is a broad, low-cost index fund. Our guides to asset allocation and ETFs vs index mutual funds help you choose.

Moving an Account You Already Have (ACATS)

To move investments from another broker, you start the transfer at the new broker, not the old one. It sends the request through ACATS, the industry's automated transfer system. FINRA Rule 11870 then sets the clock:

• The old broker has one business day to validate the request or take exception (for example, if the name or account number does not match).
• Once validated, the transfer must be completed within three business days.

So a clean transfer usually finishes in about a week. Delays almost always come from mismatched details, so copy the account title and number exactly from a recent statement. Some holdings cannot move "in kind", for example a mutual fund only the old broker offers; you may have to sell those, which can trigger taxes in a taxable account. Moving an IRA to an IRA this way is a direct transfer and is not taxed.

How Your Account Is Protected

If a brokerage firm that is a member of SIPC fails and customer assets are missing, SIPC protects up to $500,000 per customer, including up to $250,000 in cash. That covers missing securities and cash, not losses from the market going down. Check that your broker is a SIPC member; FINRA's BrokerCheck shows its registration and any disciplinary history.

Cash swept into a bank deposit program may be covered by FDIC insurance instead, at the program banks, up to the FDIC limit per bank; the broker's sweep disclosure lists which applies.

Mistakes to Avoid

• Leaving cash uninvested in a near-zero sweep for months after funding.
• Opening a margin account by default because the form suggested it.
• Using market orders on thinly traded stocks or right at the open.
• Skipping beneficiaries, which can send the account through probate.
• Contributing more than the IRA limit; excess contributions are taxed each year until you remove them.
• Selling everything to switch brokers instead of using an in-kind ACATS transfer, which can create a tax bill in a taxable account.

FAQ

How long does it take to open a brokerage account?
Usually 10 to 15 minutes online, with approval often instant. If the broker cannot verify your identity electronically, it may ask for a document and take a day or two.

How much money do I need to open a brokerage account?
At most large U.S. brokers, nothing: Fidelity, Schwab, Vanguard, E*TRADE, Interactive Brokers and Robinhood all had a $0 minimum when we checked on October 19, 2026. With fractional shares you can start investing with a few dollars.

What information do I need to open a brokerage account?
At least your name, date of birth, residential address and Social Security number, which federal rules require brokers to collect. Brokers also ask for employment, income and investing experience, plus bank details to fund the account.

Can I open a brokerage account without a Social Security number?
U.S. persons need an SSN or another taxpayer ID. Non-U.S. persons can use a passport or another government-issued ID number, but many U.S. brokers do not accept non-resident customers.

How long does it take to transfer a brokerage account?
Under FINRA Rule 11870, the old broker must validate the request within one business day and complete the transfer within three business days after that, so a clean ACATS transfer usually takes about a week.

Is my money safe at an online broker?
Securities at a SIPC-member broker are protected up to $500,000, including $250,000 of cash, if the firm fails and assets are missing. SIPC does not protect against investment losses.

Should I open a Roth IRA or a regular brokerage account first?
If the money is for retirement and you qualify, a Roth IRA usually comes first because growth is tax-free. Use a taxable account for money you may need sooner or for savings above the IRA limit.

Educational content, not investment advice. Broker terms change; confirm fees and rates on the broker's own site before you open an account.