How can I reset margin in a paper account?

The IBKR Paper Trading account is a simulated account located on an IBKR server. Orders transmitted in a paper trading account are not sent to an exchange for execution. The paper trading account is provided to help you learn to use the trading features available in the various IBKR trading programs and can be used to model positions and check current margin requirements. There are limitations to the paper trading account which can be found…

Your order either closes an existing position in a Reg-T margin account or reduces the risk based margin requirement in a Portfolio margin account.

For more information, please visit the Margin page of our website…

To determine the margin requirement for your account after a switch from Reg. T to Portfolio Margin in TWS:

1. Open the Account Window from TWS (select the Account and then Account Window menu options from the top-level menu bar).
2. Click on the "…

VIEW MARGIN REPORTS

Portfolio Margin (PM) accounts calculate margin requirements on a portfolio basis. Portfolio Margin (PM) accounts should bear in mind that the margin requirement for individual positions or product groups will not sum up to the entire portfolio's margin requirement due to the offset allowed between products which are considered highly correlated…