Thank you for joining the thread, @CLF733.
To isolate the problem, may I know what specific error message you're getting? For now, I highly encourage double-checking the information you've entered. If there are incorrect details, you can always contact your tax or state agency so they can give you the correct details for the setup.
If everything is right and you're still getting the same issue, I suggest reaching out to our Support Team to check and investigate this further. They have extra tools that can pull up your account securely and be able to help you complete the process.
To contact support, click on Contact us from the Help menu.
To achieve the process of setting up taxes in QuickBooks Online, you can always read these articles:
To stay compliant with the state payroll tax regulations, you can also visit our Payroll Tax Compliance page.
Leave a comment below if you have any other questions. I'm always here to help. Have a great day!