What information is required in a CTR?

The correct choice provides the essential information required for filing a Currency Transaction Report (CTR). Under the Bank Secrecy Act, when a financial institution reports cash transactions that exceed $10,000 in a single day, it must include specific identifying details about the individual involved in the transaction. This includes the person's name, address, date of birth, and Social Security number, all of which help to verify the identity of the individual and ensure compliance with regulations aimed at preventing money laundering and other financial crimes.

The other options, while potentially relevant to financial transactions, do not meet the specific requirements for CTR documentation. Account balance and transaction history can be useful for internal records but are not mandated for CTR filing. Employer information and salary details may provide context regarding an individual's income but are not required components. Investment history and tax returns, although valuable for understanding a client's financial background, also are not part of the information needed for a CTR. Thus, the requirement for the report emphasizes the importance of basic personal identifiers to ensure effective monitoring and compliance.