At this time, running an Aging report by Class in QuickBooks Online is not an option. I know the importance of having the report you need and I can see how the feature you're looking for would benefit and empower your business. In the meantime, I recommend sending this request straight to our product engineers through feedback.
I'd be glad to help you out again if you need further assistance running the report you need. Just leave a reply below, and I'll get back to you as soon as I can. Have a good day.
Need QuickBooks guidance?
Log in to access expert advice and community support instantly.