Hello there, @tjkirk.
I appreciate you for sharing a screenshot of what you're actually seeing on your end. Let me help you sort this out.
With QuickBooks Online, there are two preferences in viewing the Sales tax Center. Currently, you are using the old sales tax center.
In the meantime, let us isolate this issue by performing the following troubleshooting steps to see whether this is browser-related:
If the issue persists, I'd recommend scheduling a callback with our Customer Care Team. A specialist will be able to look into your account via secured environment and further check on the root cause of the issue.
Here's how to contact us: