Interactive Brokers Customer Support: Best Contact Methods at a Glance1. Phone number: 1 (877) 442-2757 (live phone support is offered 24/6)2. Web site: https://www1.interactivebrokers.com/en/index.php?f=15603. Live chat: https://www1.interactivebrokers.com/en/index.php?f=1560&p=chat4. Email: IBKR does not have a public customer service email address, but you can send a message to a customer service member here: https://www1.interactivebrokers.com/en/index.php?f=38695. Fax number: (312) 984-10176. … Continue reading IBKR Support: How to Contact Interactive Brokers Customer Service If You Have a Problem →