“Immediate Income Subcategory” is shown on the UI as “Inflow: To be Budgeted”, and is the basis upon which we calculate "To be Budgeted" (TbB). Brady explained it to me pretty succinctly, so I'll just quote him:
> To determine TbB, we take this income calc and _reduce_ it by any future budgeting. But, we only reduce it if it is already positive and we do not reduce beyond zero. So, effectively, we drain any positive amount from it and stop at $0. If it is already negative, we leave as-is.