We'll make sure to prioritize this function. Let me show you how you can send a request, nludlow.
Currently, importing sales tax to QuickBooks Online (QBO) is unavailable. While you can only import some information from an Excel file to QBO, you'll want to let our product team know how this feature helps your business. You can visit our Customer Feedback page by clicking the Give feedback option. After that, you can submit feedback. I've attached a screenshot for your visual guide:

Learn from this article what information you can import to QuickBooks: Common Questions About Importing Data To Online.
Apart from this, QuickBooks provides several reports that help you view the information you need most. To read more on how this works, check out this handy article for more details: Run Reports In QuickBooks Online.
If there's anything else that you want to know more about sales tax, let us know so we can help you out. We're here to cover all your needs.