This is the cash you earn in a fixed interval from all your business investments. You can increase this number by purchasing more Business buildings.  An amount equal to the total income will will be added to your account every hour. == Upkeep == Some of the inventory items you purchase (like weapons or cars) will have an hourly upkeep associated with it which is the cost of maintaining the inventory item in your Armoury. Your total upkeep will be the sum of individual upkeeps from all the items in your inventory.  An amount equal to the total upkeep will will be reduced from your account every hour as long as the inventory item is present in your armoury.