For U.S. investors, an online brokerage account can be reasonably protected against a broker’s failure—but it is not insured against investment losses or every kind of fraud. SIPC may help return eligible securities and cash missing when a member brokerage firm fails, up to $500,000 per customer, including a $250,000 limit for cash claims. Those are statutory limits, not a guarantee that every balance is covered or paid immediately. Market declines, account takeovers, and the treatment of cash swept to a bank are separate risks.
What SIPC protection does—and does not—cover
The Securities Investor Protection Corporation (SIPC) addresses a specific custody problem: a SIPC-member brokerage firm fails and eligible customer property is missing. The SEC and SIPC describe a maximum of $500,000 per customer, including up to $250,000 for cash claims. Eligibility, account ownership capacity, and claim rules affect how protection applies; the limits should not be read as insurance for every account balance. See the SEC and SIPC’s June 7, 2023 Investor Bulletin: SIPC Basics.
SIPC describes its role this way: “SIPC only protects the custody function of the broker dealer, which means that SIPC works to restore to customers their securities and cash that are in their accounts when the brokerage firm liquidation begins.” The aim is to return eligible property where possible, not to make an investor whole for losses in the value of investments. See SIPC’s What SIPC Protects guidance.
- Potentially covered: eligible customer securities and cash that are missing when a SIPC-member broker-dealer fails, subject to SIPC and claim rules.
- Not covered as an investment loss: a stock or fund falling in price, an investment becoming worthless, a promised return that never materializes, or losses from bad advice or unsuitable recommendations.
- Not automatically covered: disputes over authorized trading, assets held outside a SIPC-member brokerage, and every asset described as “crypto.” SIPC says digital assets that do not qualify as securities under the Securities Investor Protection Act are not protected, even if held by a SIPC member; legal status and account structure matter. Its guidance also identifies exclusions including commodities and futures contracts and foreign-exchange trades.
Multiple accounts or pooled arrangements can raise questions about ownership capacity and how customer limits apply. Do not assume that each account automatically receives a separate $500,000 limit; consult current SIPC guidance or a qualified legal professional about a complex ownership structure.
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Is brokerage cash covered by SIPC or FDIC?
A balance labeled “cash” can refer to different arrangements. Cash kept at a broker for securities transactions may fall within SIPC’s eligible-cash rules if the firm fails and the cash is missing. A money market mutual fund is a security, not a bank deposit. Cash swept to a participating bank is treated under the bank-deposit arrangement and may qualify for FDIC insurance if the bank fails, subject to FDIC rules and limits. These protections apply to different risks; a balance is not automatically covered by both programs. Read the broker’s cash-sweep disclosure and account documents to see how your cash is held.
- Identify the bank or banks receiving swept funds and the ownership category used for the deposits.
- Check whether deposits at those banks are combined with your other deposits there when determining applicable FDIC coverage.
- Confirm how the broker treats cash that has not been swept, and whether the account’s sweep option can be changed.
The specific agreement and sweep disclosure govern the arrangement. A displayed cash balance alone does not establish where the money is held or how it is protected.
How to check a broker before opening an account
- Search the legal firm name and any named broker. Use FINRA BrokerCheck to review registration and available background information. The Investor.gov guide to checking an investment professional says records can include employment and qualifications, disciplinary actions, investigations, customer complaints, and related events. BrokerCheck provides information; it is not an endorsement or guarantee of future conduct.
- Verify SIPC membership separately. Check the firm’s legal entity against SIPC’s member information. A marketing brand may differ from the broker-dealer that carries or clears an account.
- Read the disclosures that explain the actual service. Review the firm’s Form CRS (relationship summary), fee schedule, account agreement, and custody and cash-sweep terms. Check which entity holds the account, how deposits and withdrawals work, what cash protections may apply, and what fees or conflicts are disclosed.
- Compare firms on the same points. Consider registration and legal entity, SIPC membership and carrying or clearing arrangement, sweep destinations and FDIC terms, fees and service model, and available authentication, alerts, and account-recovery options. No single security feature or membership status proves that a firm is the safest choice.
How to reduce the risk of account takeover and fraud
SIPC protection does not automatically resolve an account takeover or unauthorized transaction. Whether an allegedly unauthorized trade qualifies for protection can depend on establishing that it was in fact unauthorized; SIPC’s central role concerns eligible missing property after a member firm’s custody failure. Report suspicious access or activity to the firm promptly, follow its dispute and account-security process, and keep relevant records rather than assuming SIPC will reimburse every loss.
The SEC’s April 23, 2026 guidance on online investment account security recommends steps including:
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- Use a strong, unique passphrase and different passwords for different accounts.
- Enable two-step or multifactor verification if the firm offers it.
- Turn on available alerts for logins, password or contact-detail changes, trades, transfers, and linked external accounts.
- Keep devices and apps current, limit unnecessary sharing of personal information, and review statements and trade confirmations.
- Do not follow unsolicited account links or provide login credentials or authentication codes through an unexpected request. Navigate to the firm through a known official website or call a verified phone number.
If you suspect your personal financial information was stolen or someone accessed the account, contact the brokerage immediately using a verified channel. Ask what steps to take to secure the account; SEC guidance notes that an investor can ask about closing a compromised account and moving assets to a new one. Preserve suspicious messages and review recent transactions. The firm’s available controls and procedures vary, so check its current instructions.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What “safe” means for your brokerage account
Evaluate the risks separately: SIPC membership and eligibility address a possible custody shortfall after a member firm fails; market exposure remains yours; cash-sweep treatment depends on where deposits actually go; and online security depends on both the broker’s controls and your own account practices. The rules described here are for U.S. retail brokerage accounts. If you use a broker in another country, or have a particular account, sweep option, or ownership structure in mind, verify the protections and terms with the relevant regulator and the firm’s current documents.
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