Hello there, @Enhearten_Finanancial. Thanks for joining the thread and providing detailed information about your concern.

Since all your customers are showing taxable on the Customer Contact List report even though set up as not taxable on their customer profile, let's isolate the issue by opening your QuickBooks Online (QBO) account in a private (incognito) window. Using a safe browser and accessing the program from there can usually fix the issue.

Check out these keyboard shortcuts:

• Command + Shift + N (Safari)
• Ctrl+ Shift + N (Google Chrome)
• Ctrl + Shift + P (Mozilla Firefox) 

Once login, create a new customer and open the report again. Check if it's now showing customers as non-taxable. If it works, go back to your default browser and clear cache. See Clear cache and cookies to fix issues when using QuickBooks Online for more information.

If the issue persists, I recommend contacting our Customer Care Team. For ways to connect with us, see this article: Contact the QuickBooks Online Customer Support team.

As always, please let me know how this goes or check back if you need help with QBO. I'm here for you. Have an awesome day!