Hello there, denise35,
You can use location tracking to internally track these transactions. However, you'll want to select the tax rate every time you create one.
Note that class or location tracking is only available in QuickBooks Online Plus and Advanced. Check this article to set it up: Turn on class tracking in QuickBooks Online.
Here's an article for reference: Track your transactions by class.
You can also run reports by class.
Let me know if you have more questions.