The cash flow section under "Reports" gives you a general overview of the building's incomes, expenses, occupancy etc. month by month.

By default the cash flow report is generated for a full year, starting from 6 months back, and showing the potential income etc. for the next 6 months. If you wish, you can see the cash flow report for a specific period, by clicking on the calendar section in the top right, and selecting the desired period.

In case you have multiple buildings under one environment, you can also filter the cash flow by building.