When I try to open a new account I get the message "You have existing Interactive Brokers account(s)".

If your Country is not available when you try to update your address, you will most likely need to open a new account with a different legal entity of Interactive Brokers.

You can start an account application by clicking on…

If your account has been opened or if you started an application under the wrong account type, then you will need to start a new application. An account type cannot be converted to another account type. 

Follow the procedure below to keep your username when opening an additional account:…

LINK EXISTING ACCOUNTS

If you do not see the option to"Create New Individual, Joint or IRA Account" in Client Portal, it is because the system detects that there are existing accounts eligible to be linked under the same username and password. You must first link them together before you will be eligible to create a new linked account:…

Each IBKR account is only allowed one paper trading account. If you have multiple IBKR accounts, each one can have its own paper trading account.

To open a second paper trading account:…