Thanks for the reply and I appreciate the information, however it does not address my question.  My question is why the Billable Expense feature is not included in Simple Start.  My original question is as follows:

If my limited accounting knowledge is correct, Billable Expenses can only be categorized as "Income and Expense" or "Invoicing or Payments" within QuickBooks.  Both of those categories are fully included in Quickbooks Online Simple Start.  So, how can that feature not be included in Simple Start?  Someone please help me understand.

Thanks.