Same issue.  Shipping is turned off but it still auto-populates and needs to be turned off for each invoice and on top of that, I am the only one who has the option to customize each invoice and turn it off.  Sales tax is an absolute nightmare as I have to work to clean up all these invoices so sales tax is calculated correctly.  This is obviously a bug that needs to be fixed.  More importantly than this being a convenience/added labor problem, it is a compliance/legal issue to calculate sales tax.  I am sure my state is not going to accept me saying that "it is a Quickbooks glitch".  Additionally all my sales tax revenue should be going to my county not all over the state because it shows it was shipped and not picked up from my location.