Is there a fee to open or maintain an account with Interactive Brokers?

Retail and Institutional clients with an account registered on the B3 (Brasil, Bolsa, Balcão) are charged a flat monthly custody fee. This is a pass-through fee charged by B3 for maintaining an open account registration, and it applies for as long as the account remains open regardless of whether you traded that month…

There is no minimum deposit to open an advisor master account. However, please note that advisor master accounts must have funds in the account to pay for market data subscriptions and in some cases, commissions and fees for your clients (should you elect to pay them). …

IBKR will continue to reflect shares of securities which are no longer listed for trading until the depository removes the shares from our account. In the event an account was holding a short position, this may result in borrow fees being charged to the account for an extended period…

No, IBKR does not allow trading permissions for B3 (Brasil Bolsa Balcão) across multiple linked accounts. IBKR's policy allows B3 trading permissions in only one account per client. Please select which account you would like to designate for B3 trading…