Click on your name in the top right corner.
Click on Account Settings.
In the Advanced menu.
Click on the Tags item.
Click on the Menu Icon next to a Custom Tag.
A menu will open.
Click on the Delete item.
A new window will open.
Click the button in the bottom right corner that says DELETE.
Important: You can only delete the Custom Tags you created. You can not delete Global Tags that come pre-loaded in your offrs account.