The main choice is between a full-service broker, an online discount broker, and a robo-advisor

A brokerage account is where you hold stocks, bonds, mutual funds, and exchange-traded funds (ETFs). You open one by choosing a firm, providing personal and financial information, and funding the account. The firm then holds your money and executes your trades.

The three main paths differ in cost, hands-on involvement, and how much guidance you get. Full-service brokers like Merrill Lynch or Morgan Stanley assign you a financial advisor who manages your portfolio for you—they charge 0.5% to 2% of assets annually. Online discount brokers like Fidelity, Charles Schwab, E*TRADE, and TD Ameritrade let you pick and trade securities yourself with no advisory fee, though they may charge per trade or require a minimum balance. Robo-advisors like Vanguard Personal Advisor Services or Betterment use algorithms to build and rebalance a portfolio for you, charging 0.25% to 0.50% annually.

Your choice depends on whether you want someone else managing your money, whether you want to make your own trades, and how much you're willing to pay.

Key Takeaways

  • Online discount brokers charge no advisory fees and have no or low account minimums, making them the cheapest entry point for self-directed investors.
  • Full-service brokers assign you an advisor but charge 0.5% to 2% annually and typically require $100,000 to $1 million in assets to open an account.
  • Robo-advisors automate portfolio management and rebalancing for 0.25% to 0.50% per year, with minimums ranging from $0 to $25,000 depending on the firm.
  • Every brokerage account is protected by SIPC (Securities Investor Protection Corporation) up to $500,000 per account type, though this does not cover losses from bad trades or market drops.
  • Opening an account takes 10 to 30 minutes online and requires a Social Security number, proof of identity, and initial funding via bank transfer or check.

How to open an account at an online discount broker

Online brokers are the fastest and cheapest route for most people. Visit the firm's website—Fidelity, Charles Schwab, TD Ameritrade, and E*TRADE are the largest—and click "Open an Account" or "get your free guide." You will enter your name, address, Social Security number, employment status, and annual income. The firm runs a background check and verifies your identity, usually instantly.

Next, you link a bank account or mail a check to fund the account. Most firms accept transfers from any U.S. bank via ACH (Automated Clearing House), which takes one to three business days. Some also accept wire transfers, which settle the same day but may carry a fee. You do not need a minimum balance to open most discount brokerage accounts, though some firms like Fidelity have no minimum and others like Charles Schwab historically required $500 (though this has changed). Once the money arrives, you can buy stocks, ETFs, mutual funds, or bonds immediately.

The entire process—from clicking "Open Account" to placing your first trade—typically takes 30 minutes to two hours, depending on how quickly your bank processes the transfer.

How to open an account at a full-service broker

Full-service brokers require more paperwork and a larger initial deposit. Call the firm or visit a local branch to speak with an advisor. They will ask about your investment goals, risk tolerance, income, and net worth. Most require a minimum of $100,000 to $1 million to open an account, though this varies by firm and advisor.

You will complete a detailed application that includes your employment history, investment experience, and financial situation. The firm conducts a background check and may verify your income with tax returns or pay stubs. This process takes one to two weeks. Once approved, you fund the account by wire transfer or check, and your advisor begins building a portfolio for you.

Full-service brokers charge advisory fees (usually 0.5% to 2% of your assets annually) plus trading costs. They are best for people with substantial assets who want professional management and do not want to make their own investment decisions.

How to open an account with a robo-advisor

Robo-advisors automate the process of building and rebalancing a portfolio. Go to the firm's website—Vanguard Personal Advisor Services, Betterment, Wealthfront, and Schwab Intelligent Portfolios are common choices—and answer a questionnaire about your goals, time horizon, and risk tolerance. The algorithm uses your answers to suggest a portfolio of ETFs.

You provide your name, address, Social Security number, and bank account information. Most robo-advisors have no account minimum or a minimum of $500 to $25,000, depending on the firm. Fund the account via ACH transfer (one to three business days) or wire transfer (same day). The robo-advisor then automatically invests your money and rebalances the portfolio quarterly or when your allocation drifts beyond a set threshold.

Robo-advisors charge 0.25% to 0.50% annually and are best for hands-off investors who want professional-grade portfolio management without paying for a human advisor.

What documents and information you need to provide

Every brokerage account requires the same core information. Have your Social Security number, driver's license or passport, and current address ready. You will also need to confirm your employment status and annual income—if you are self-employed, have a recent tax return available.

If you are opening a joint account, both account holders must provide their Social Security numbers and identification. If you are opening an account for a minor, you will need to set up a custodial account and provide the child's Social Security number and birth date.

For full-service brokers, have recent tax returns and bank statements available to verify your net worth and income. Some firms ask for employment verification or a letter from your employer. Robo-advisors and discount brokers rarely ask for these documents upfront but may request them later if your account activity triggers compliance reviews.

Account types and how they affect your taxes

A taxable brokerage account (also called a standard or individual account) has no contribution limits and no restrictions on when you withdraw money. You pay capital gains tax on profits when you sell, and you pay tax on dividends and interest annually, whether or not you withdraw the money. This is the most common type for most investors.

An Individual Retirement Account (IRA) is a brokerage account with tax advantages. A traditional IRA lets you deduct contributions from your taxable income (up to $7,000 per year in 2024, or $8,000 if you are 50 or older), and you pay tax only when you withdraw money in retirement. A Roth IRA takes after-tax contributions but grows tax-free, and withdrawals in retirement are not taxed. You cannot withdraw money before age 59½ without a penalty, with limited exceptions.

A 401(k) is an employer-sponsored retirement account, not something you open at a brokerage. However, many brokerages let you open a brokerage IRA alongside a 401(k) at work. A SEP IRA or Solo 401(k) is for self-employed people and allows much higher annual contributions than a standard IRA.

Choose a taxable account if you need access to the money before retirement. Choose an IRA if you are saving for retirement and want tax advantages. Most people benefit from maxing out an IRA first, then using a taxable account for additional savings.

How your money is protected if the brokerage fails

Every brokerage account is protected by the Securities Investor Protection Corporation (SIPC), a nonprofit created by Congress. If your brokerage fails or goes bankrupt, SIPC protects up to $500,000 per account type per firm. This means if you have a taxable account and an IRA at the same firm, each is protected separately up to $500,000.

SIPC protection covers the cash and securities in your account but does not cover losses from bad trades, market declines, or fraud by the brokerage itself. If a broker steals your money or mishandles your account, SIPC may cover losses up to $500,000, but the process takes months and requires documentation.

Most major brokerages also carry additional insurance beyond SIPC. Fidelity, Charles Schwab, and TD Ameritrade typically carry $600 million to $1 billion in excess SIPC insurance, which means your account is protected beyond the $500,000 limit if the firm fails. Check your brokerage's website or account agreement for details on their specific coverage.

Frequently Asked Questions

Can I open multiple brokerage accounts?

Yes. You can open accounts at multiple brokerages, and each account is separately protected by SIPC up to $500,000. Many investors open one account at a discount broker for self-directed trading and another at a robo-advisor for automated investing. There is no limit on the number of accounts you can hold.

What is the minimum amount I need to start investing?

Most online discount brokers and robo-advisors have no minimum or a minimum of $1 to $500. Full-service brokers typically require $100,000 to $1 million. If you have less than $500, start with a discount broker or robo-advisor that has no minimum. You can always transfer money to a full-service broker later once you have accumulated more assets.

How long does it take to start trading after I open an account?

At a discount broker, you can trade immediately after your bank transfer settles, which is one to three business days. At a full-service broker, the approval process takes one to two weeks. At a robo-advisor, your money is invested automatically once the transfer settles, usually within one to three business days.

Do I pay taxes on money I deposit into a brokerage account?

No. Deposits are not taxable. You pay tax only on gains (when you sell securities for more than you paid) and on income (dividends and interest). In a taxable account, you owe tax annually on this income. In a traditional IRA, you pay tax only when you withdraw in retirement. In a Roth IRA, you pay no tax on withdrawals.

What happens if I want to move my account to a different brokerage?

You can transfer your account to another brokerage through a process called an ACAT (Automated Customer Account Transfer). The new brokerage handles most of the paperwork, and the transfer typically takes five to ten business days. You do not have to sell your securities or pay taxes during the transfer—your holdings move as-is to the new firm.