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SIE Customer Accounts

Updated October 27, 2026

Understanding Trading, Customer Accounts and Prohibited Activities is 31% of the SIE. This page covers the account side: the main account types, margin basics and the anti-money laundering rules every firm follows. Free practice questions follow.

Account types

Account Key points
Individual One owner
Joint tenants with right of survivorship (JTWROS) When one owner dies, the account passes to the surviving owner(s)
Tenants in common (TIC) When one owner dies, their share goes to their estate
Custodial (UGMA/UTMA) An adult custodian manages the account for a minor; the assets belong to the minor
Discretionary The representative can choose the security, amount or action without asking first; requires the customer’s written authorization
Margin The customer borrows from the broker-dealer to buy securities

Margin basics

  • Regulation T, set by the Federal Reserve, requires an initial deposit of 50% of the purchase price for most margin purchases.
  • Buying on margin magnifies both gains and losses.
  • Customers sign a margin agreement, and the securities serve as collateral for the loan.

Anti-money laundering (AML)

  • Firms verify customers’ identities under a customer identification program (CIP).
  • Currency transaction reports (CTRs) are filed for cash transactions over $10,000 in a day.
  • Suspicious activity reports (SARs) are filed for transactions that look like money laundering or other crimes, without telling the customer.
  • Structuring, breaking up cash deposits to avoid the $10,000 reporting threshold, is illegal.

Free SIE customer accounts practice questions

  1. Two owners hold a joint account. When one dies, the account passes automatically to the other. What type of account is this?
  2. In a UTMA account, who owns the assets?
  3. What does a discretionary account require before the representative can trade without the customer's approval for each trade?
  4. Under Regulation T, what is the initial margin requirement for most stock purchases?
  5. A customer deposits $9,500 in cash on Monday and $9,500 on Tuesday, apparently to avoid a report. This is called:
  6. When is a currency transaction report (CTR) required?
  7. Two people own an account as tenants in common. One dies. What happens to that person's share?
  8. What is the FINRA minimum maintenance margin requirement for a long stock position in a margin account?
  9. How much protection does SIPC provide per customer if a member firm fails?
  10. At a minimum, how often must customers receive account statements?
  11. Which law requires firms to verify a new customer's identity through a Customer Identification Program?
  12. A transfer on death (TOD) registration on an individual account:
  13. Which FINRA rule requires a firm to use reasonable diligence to know the essential facts about each customer?
  14. Who can be the custodian on a UTMA account?

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