What do I do when QB gives message that it can't auto calculate tax when I try to save an invoice to a wholesale tax free account?

Thank you for reaching out to us, @bushelbasket-out.

To help resolve this issue, can you provide additional context, such as error messages or screenshots from the mobile app, that may help pinpoint what's preventing auto-tax from functioning properly?

Also, I'd suggest performing basic troubleshooting steps so the stored data in your QBO mobile app will be refreshed and updated. 

1. Try changing the WiFi data connection on your device to 4G (varies by device.)
2. Close and restart the app. 
3. Clear the app data in your Settings. Here's how:
   1. Open your Settings. 
   2. Select Apps (varies by device.)
   3. Choose the QuickBooks app from the list. 
   4. Click Storage, then select Clear Data.
4. Power off and restart your device.
5. Uninstall and reinstall the app from your Google Play store.

Since adding and editing your sales tax rates is only applicable in QBO for the web, you can view sales tax rates and transactions on your Android devices by reading this article: Change a sales tax rate using the QuickBooks Online app (Android only).

Please let us know if you have any concerns regarding your taxes. I'm always here if you need further assistance with your issue.