Sorry to hear about this issue, @chat2chuck97!
As a first step, I recommend uninstalling your app and redownloading it from the App Store to see if this will resolve the issue for you. Please also ensure that you're running the latest Software Version on your device (i.e., Apple iOS or Android OS).
If you're still finding that tax is being included on invoices after completing the steps above, please let me know and we can troubleshoot further.
