Which action represents a non-compliance risk regarding large cash transactions?

Accepting cash transactions without proper reporting constitutes a significant non-compliance risk. This is because financial regulations often require that large cash transactions be monitored and reported to prevent money laundering and other illicit activities. Failing to report these transactions can lead to legal issues for both the salesperson and the brokerage, as it is against regulatory standards aimed at maintaining transparency in financial dealings.

Timely reporting of transactions, ensuring electronic transfers, and verifying client identities are all practices that contribute to compliance and the prevention of financial crimes. Therefore, the action of accepting cash without proper documentation and reporting increases the risk of non-compliance, making it critical for salespersons to adhere to mandatory reporting requirements for substantial cash transactions.