Hi there, @Geoffd1111.
When importing data to QuickBooks Online, the program depends on the information shared by your third-party application. This means QuickBooks depends on what details Etsy shares.
If your payment processing service doesn't add sales tax to transactions, you'll need to do it manually.
Furthermore, I got you this article that you can read for additional reference. This can guide you to understand more on how to track sales manually: Manually track sales tax in QuickBooks Self-Employed
Just in case, I'll add this article for future reference: How sales tax works in QuickBooks Self-Employed.
You can consider checking out our QuickBooks Online (QBO) or TurboTax. These versions have the option to calculate sales tax for you.
Reach out to me in the comment section below if you have any other concerns or questions. I'm always here to answer them. Take care and have a good one!
