Interactive Brokers Fined for Municipal Bond Disclosure Failures

Interactive Brokers fined $125K by FINRA for failing to disclose tax impacts of municipal bonds to customers.

Key Points:

• Interactive Brokers failed to provide timely disclosures on municipal bonds with market discounts, affecting 130 customers.
• The firm implemented automated acknowledgments and offered compensation after FINRA found violations of MSRB rules.

Interactive Brokers LLC has agreed to a $125,000 fine and a formal censure following a settlement with the Financial Industry Regulatory Authority (FINRA) over deficiencies in its municipal bond disclosures.

Interactive Brokers Fined for Municipal Bond Disclosure Failures

Between January 2022 and October 2024, FINRA found that Interactive Brokers failed to implement and maintain a supervisory system, including written procedures, reasonably designed to ensure compliance with obligations to provide timely disclosures to customers. Specifically, the firm did not adequately inform customers that certain municipal bonds traded at a market discount, meaning that part or all of the investor’s return could be taxable as ordinary income.

Although the firm relied on a third-party vendor to deliver time-of-trade disclosures, it lacked procedures to supervise the vendor or confirm that customers purchasing bonds with significant market discounts received appropriate disclosures. During the period under review, 1,918 transactions involving 130 customers—totaling approximately $40 million in principal—were affected.

Interactive Brokers subsequently provided the required disclosures to impacted customers and offered compensation for any demonstrated adverse tax consequences resulting from the delayed notifications. In October 2024, the firm and its vendor implemented an automated system requiring customers to acknowledge, at the time of trade, the potential tax implications of bonds trading at non-de minimis market discounts before completing the transaction.

FINRA determined that by failing to establish an effective supervisory system and by not disclosing material market discounts, Interactive Brokers violated MSRB Rules G-27 and G-47.

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