IBKR will automatically close individual accounts maintaining a zero balance in order to avoid continuing market data subscription fees.
If all positions have been closed and a close account request has been submitted through Client Portal, IBKR will automatically convert Settled Cash balances to base currency provided the balance held is less than USD 1,000 equivalent. Clients holding currency balances exceeding this threshold will be required to submit closing trades in order to close their currency position before the account closure request will be processed…