This tab will only be visible for rental applicants.
None of these fields are mandatory and can be used according to your requirements.
To add expenditure, income or meter readings click on the button in the bar under its respective grid. You will not be able to do this until you have entered some details in either the Credit Reference, Deposit Scheme or Tenancy Information sections.
See How do I use the navigation buttons? for further help on the navigation bar.
Information on the other tabs on the applicants screen is available here: