Hi Pam28,
It's great that you've decided to reach out to us here in the QuickBooks Community! Matching your transactions to the Bank Feed is a great way to stay organized, and ensure your books are up-to-date.
When deciding which tax code to select, I'd recommend consulting with your accountant to come to the best resolution. They're the best equipped to help you make the appropriate selection for how to tax your business transactions. Perhaps some of our accountant contributors in the Community will also chime in with some advice.
If you're not already connected to an accountant, you can find one in your area here: Find an Accountant.
For more information about matching and categorizing transactions in QBO, check out this helpful Community article: Download, match, and categorize your bank transactions in QuickBooks Online.
If you're in need of any further assistance, please don't hesitate to reach out to our tech support team here.
Cheers!