The real problem is the actual tax return.  States are designed to be sales, payroll, property.  Getting a K-1 from a business to a business is not supported at all in ProSeries.  Last year this return took me close to one hundred hours to complete.  Then I have to do the same 22 states in the individual since it's an S corp).  Billing is good but I'm happy to give this away to anyone that can handle it.  Thought I had.