So, depending on your "free" time - I've figured that if I run the sales tax liability report, click into the invoices that come up and "copy" (aka manually duplicate the invoice lines) and delete the original lines and then save the edited invoice that it removes it from the tax liability report.  I'm thinking after I painfully do this 200 more times I will have eliminated all of the invoices on the list going back 5 or so years......  After banging my head against the wall I'm going to see if doing that allows me to finally turn off sales tax and get back to importing invoices.  If not, I'm going to cancel my QB subscription and find something better.