There might be a reason for the problem you are encountering with your invoices, @JILL103.
To assist you better, could you please let us know what specific issue you encounter with sales tax when doing invoices in QuickBooks Online you need help with? This will enable us to provide you with accurate information and solutions.
On the other hand, if the sales tax is not calculated correctly on your invoice, you can use these resources to guide you in fixing the issue and automatically calculate your taxes:
Then, you can open this link as your guide in recording customer payment in QuickBooks: Receive and process payments.
Please provide us with detailed information about your concern, and we will be glad to assist you. You can always follow up on this thread if you have any additional questions. We are always available to help you.
