Click here to navigate to IB's main page. Log into the "Account Management" portal with your IB username and password.
On the left menu, click "Account Settings".
On the right hand side, look for the configuration panel, and click the icon to configure your account type.
Change "Account Type" to "Margin". Select "Yes" to change trading permissions.
Click "Continue" and complete the remaining steps.
DISCLAIMER: Screenshots in this page are taken from Interactive Brokers website, provided only as a setup guidelines, and may be changed from time to time subject to Interactive Brokers discretion. Algomerchant is not responsible for any loss or damages caused by inaccuracy and misrepresentation of the information.
Please refer to the attached PDF guide for more detailed instructions.