While there is no provision for dormant or inactive account status, there is no monthly minimum activity requirement or inactivity fee in your IBKR account.
While we have no minimum account balance, should the account balance fall below USD 2,000 IBKR is precluded, by regulation, from affording margin treatment to securities positions. In addition, account holders will also be billed for any market data subscriptions maintained and, as a matter of policy, will have subscriptions terminated automatically when the account balance falls below USD 500.
Individuals seeking to close an account are encouraged to refer to our User's Guide to familiarize themselves with the steps and prerequisites for taking this action.