QB Issue Resolution:

Ah, yes. The second screenshot you sent confirms you are in the newer tax center version. You should be able to “Add agency” I believe. However, you have turned on the automated sales tax feature, which is new and why you see the button to “Turn off sales tax”. The screenshot I shared with you is the old self-service tax center. If you have trouble setting up another agency in this new version you may need to contact Intuit QBO support.

Resolution for Issue 'IS anyone familiar with setting up a second sales tax rate in QBO? Specifically, in Hawaii, there is a second rate that I would like to set up for a service provided.???' available: Yes (Solved).
Source: Intuit Community forum.

IS anyone familiar with setting up a second sales tax rate in QBO? Specifically, in Hawaii, there is a second rate that I would like to set up for a service provided.???: this issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the issue yourself by looking for a resolution described below. If it is a complex issue or you are unable to solve the issue, you may contact us by clicking here or by using other support options.

Support for Sales Tax
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