The Due Diligence Checklist Every Investor Should Use Before Opening a New Brokerage Account

Opening a brokerage account now feels almost frictionless. The due diligence is where the friction belongs. SEC guidance tells investors to read the firm’s relationship summary, check the broker’s background and disciplinary history, decide whether they want cash or margin, understand how uninvested cash will be handled, and review the fees that can apply before the account is opened. (investor.gov)

That matters because the most expensive brokerage mistakes are often boring ones: margin turned on when you did not want it, idle cash parked in a weak default sweep, transfer-out fees you never noticed, or assets that are awkward to move later. A good account is not just easy to open. It should also be clear, usable, and easy to leave if the relationship stops making sense. (investor.gov)

Use the ACCOUNT Check before you open anything

My framework for evaluating brokers is called the ACCOUNT Check. I will assign a score from 0 to 2 (0 being unacceptable, 1 acceptable, but not ideal, and 2 clear and acceptable) to each line. Points structure: 2 = a clearly acceptable answer, 1 = an acceptable, but less than ideal answer, and 0 = an unclear, excessive, or risky answer. Doing so will yield a maximum score of 14. A score of 11-14 usually indicates you can work with the broker you’ve evaluated. A score of 8-10 typically indicates a need to pause and evaluate one or more brokers. A score below an 8 denotes that the broker has the burden of proof instead of you.

What matters more than a zero-commission ad

Start with account type, because the wrong default can change the risk of the account before you place a single trade. In a cash account, you pay in full for securities. In a margin account, the firm can lend against your holdings, charge interest, issue margin calls, and in some circumstances sell securities to cover a shortfall. The SEC also warns that some brokerage applications make margin the default, so this is not a box to click past casually. (investor.gov)

Next, look at how the broker handles idle cash. SEC guidance notes that firms may sweep uninvested cash into a bank program, a money market mutual fund, or leave it at the brokerage, and the firm may have a financial incentive to prefer one option over another. FDIC insurance applies to deposit accounts at FDIC-insured banks, while SIPC protection applies when a SIPC-member brokerage fails and customer assets are missing; SIPC does not protect you from market losses. (investor.gov)

Then price the relationship the way you would price a mortgage or insurance policy: all-in, not headline first. The SEC’s investor bulletin lists maintenance fees, inactivity fees, closing fees, wire or transfer fees, and margin interest as common account charges. If you may move the account later, ask about transfer-out fees and whether any holdings are nontransferable, because FINRA notes that some assets cannot move through ACATS and manual transfers can take longer. (investor.gov)

Finally, read the documents that explain how the firm gets paid and what legal relationship you are actually starting. Form CRS is built for comparison: it summarizes services, fees and costs, conflicts of interest, the applicable standard of conduct, and reportable disciplinary history. If a firm offers both brokerage and advisory services, understand when it is acting as a broker and when it is acting as an adviser rather than assuming the cheaper-looking option is automatically better. (investor.gov)

Treat options approval and any other advanced permissions as deliberate choices, not future-proofing. FINRA says options trading requires specific approval from the brokerage firm because options are complex and their risks vary by strategy. If you do not have a defined reason to use options, keeping that feature off at opening reduces one more source of avoidable complexity. (finra.org)

A realistic comparison with numbers

Maya is opening a taxable brokerage account with $120,000 from an old account. She expects to invest $105,000 over several months and keep an average of $15,000 in cash while she phases in purchases. Broker A and Broker B both advertise $0 commissions for online stock and ETF trades. On the surface, the choice looks trivial.

Once she uses the ACCOUNT Check, it stops looking trivial. Broker A defaults to margin, sweeps idle cash into a low-yield bank program, charges a $100 outgoing transfer fee, and will not accept one proprietary money market fund from her old firm without manual handling. Broker B opens as a cash account by default, offers a higher-yield cash option, and charges a $75 transfer-out fee. If Maya’s average idle cash balance is $15,000 for six months, a 4.60 percent option versus a 0.45 percent option is roughly a $311 pre-tax difference. Rates and fee schedules change, so the exact math must come from current disclosures, but the lesson holds: small defaults can matter more than advertised commissions.

A 20-minute due diligence routine

1. Download Form CRS, the account fee schedule, and the customer agreement before you enter personal data. Highlight every fee that can happen without a trade, especially maintenance, inactivity, paper statement, wire, outgoing transfer, and margin charges. (investor.gov)
2. Run BrokerCheck on the firm and on any person who will touch the account. If you see disclosure history, read it before you fund rather than after something goes wrong. (finra.org)
3. Read the cash sweep disclosure slowly. Write down where uninvested cash goes by default, whether you can choose a different option, and whether the cash sits in a bank deposit or another product. (investor.gov)
4. Decide on risk permissions before opening. If you are a plain-vanilla buy-and-hold investor, start with a cash account and skip options approval unless you have a specific use case. (investor.gov)
5. Ask the exit question before you enter. Confirm whether the new firm accepts all of your assets, how ACATS or manual transfers work, and what leaving later will cost. (finra.org)
6. Set controls on day one: add a trusted contact, choose paper or electronic statements deliberately, enable login and transaction alerts if available, and save copies of every disclosure you agreed to. (finra.org)

Common mistakes that make a cheap account expensive

• Assuming a zero-commission ad means the account is cheap. Account maintenance, transfer, wire, and margin costs can matter more than trading commissions. (investor.gov)
• Accepting margin because it was preselected. A margin account is a borrowing arrangement, not a harmless upgrade. (investor.gov)
• Treating brokerage cash as if it were automatically FDIC-insured. FDIC covers bank deposit accounts, not mutual funds, stocks, or bonds, and SIPC is not market-loss insurance. (fdic.gov)
• Skipping Form CRS because the app experience felt simple. The summary is one of the quickest ways to compare fees, conflicts, standards of conduct, and disciplinary disclosures. (investor.gov)
• Turning on options permissions just in case. Options are complex and require brokerage approval for a reason. (finra.org)
• Ignoring the first statement and trade confirmation. That is when wrong account settings, unauthorized activity, or cash-handling surprises often become visible. (investor.gov)

When the first-choice broker still is not a clean fit

It is often the case that a broker will not be clean enough regardless of how clean they appear. For example, Firm A may have the best price on a new ETF but will not allow you to purchase it using a legacy fund; Firm B may have the best process for handling cash, however, has a very poor process for transferring the shares out of the account you have them in. This requires solutions that are not perfect but rather provide temporary structures to contain the issue as opposed to creating an even larger problem.

• Keep genuinely nontransferable or proprietary holdings at the old firm and open the new account only for fresh cash until you can simplify the old positions. FINRA notes that some assets cannot move through ACATS or are declined by the receiving firm. (finra.org)
• Open the new account as cash first. Add margin or options later only if a specific strategy truly requires them. (investor.gov)
• Hold true emergency cash in an FDIC-insured bank account if you want deposit insurance clarity instead of relying on a brokerage cash program you do not fully understand. (fdic.gov)
• If you actually want ongoing discretionary advice, compare brokerage and advisory services directly using Form CRS rather than forcing an execution-only account to do an adviser’s job. (investor.gov)

How to pressure-test the account after it opens

Your due diligence is not finished when the transfer settles. When the first statement arrives, check the account number, ownership details, contact information, cash position, and every permission that was supposed to stay off. FINRA says that if you see an entry you do not understand or did not authorize, you should contact the brokerage firm immediately, and if you notice inaccuracies or discrepancies on your statement, report them in writing to the brokerage firm and the clearing firm listed. (finra.org)

1. Compare the first statement and first trade confirmation against your application and disclosures. Make sure the sweep option, margin status, and any options approval match what you intended. (investor.gov)
2. Test your security settings. Turn on alerts for logins, transfers, bank-link changes, and trades so you are not depending on monthly statements alone. (investor.gov)
3. If something looks wrong, complain immediately and in writing, keep copies, and save the statements and confirmations that support your complaint. FINRA and SIPC investor materials both stress the value of written records when account errors or disputes arise. (finra.org)

Bottom line

Think about your new brokerage account with as much caution as you would a loan or insurance company. Use the ACCOUNT Check, make all the key defaults obvious, and do not allow brokers to answer non-specifically with money flowing. A broker who cannot provide clear explanations of fees, cash handling and transfer rules and what permissions they provide regarding risk character, prior to your opening an account, has already failed your test.

Frequently asked questions

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