How to remove the sales tax (noted as a 'T') on an invoice? The box is not checked, but the tax sign continues to show on the right side for each line item.

Hi there, @janet92. I know the possible reason why the sales tax is noted as T in the invoice using QuickBooks Online (QBO). Let me elaborate on it in detail.

When creating an invoice in QBO, the letter T will appear if the item is taxable. However, if the item is non-taxable and it still shows T on the invoice, we can perform browser troubleshooting steps. This will help rule out any possible issues that you may be experiencing. Know that browsers accumulate temporary internet files that can affect your browsing experience. Too many internet files can sometimes change how your QBO company behaves, resulting in errors when performing tasks. See the following keyboard shortcuts for suitable browsers to open a private window:
 

• Google Chrome: Ctrl + Shift + N
• Mozilla Firefox: Ctrl + Shift + P
• Safari: Command + Option + P

Check out this article for a step-by-step process on clearing your cache: Clear cache and cookies to fix issues when using QuickBooks Online.

To gain a comprehensive understanding of sales taxes in QBO, I highly recommend taking a look at the following articles:
 

• Default customer sales tax rate in QuickBooks Online.
• Apply sales tax rates to transactions and sales forms in QuickBooks Online.

I'm still ready to back you up if you need more help with taxes in QBO. I'll keep the thread open so you can comment back.