Hi there, @festivalproducer420.
Currently, the ability to add a tag on split transactions is still not available in QuickBooks Online (QBO). I can see that putting an option to do so is a great idea. I'd suggest submitting your feedback to our product engineers by following the steps below:
- Click the Gear icon in the upper-right corner.
- Select Feedback under Profile.
- Share your feedback.
- Click Next to submit.
Another easy way to share your feedback is to enter them through this link: QuickBooks Online Feature Requests.
In the meantime, you can use the class tracking feature instead to track each line separately. To learn more about this, you can refer to this article: Track your transactions by class.
Once done, you'll want to run your report by class to keep track of each segment in your business.
You can also check out this link for guidance in categorizing your transactions efficiently: Categorize and match online bank transactions in QuickBooks Online.
You can always swing by here if you have other questions about tracking your transactions. I'm always here to help. Have a great day!
