How do I run a report that would list any transactions I have that are not tagged?
I'll be happy to help you create the report you need, usermyles.
You can run the Transaction List by Tag Group report and set the Group by to None. Then, click on the small gear icon on the report section, click Show more and place a checkmark in the Ungrouped tags checkbox. This will show you the list of tagged and untagged transactions.