@SarahannC I'm not sure you understand. My company has never used Sales Tax and we don't have any active transactions with applicable Sales Tax applied. We merely turned it on to see it's functionality. It makes zero sense why it cannot be turned off and it now hinders a vital component of QBO. There must be a way to resolve this. 

Please escalate this issue as this is clearly a critical problem that several users are having with zero resolution provided. We all pay a lot of money to utilize QBO and it makes no sense for us to lose functionality with no justification, then have to pay a third-party for a capability that we have historically always had. Very frustrating.