Hi there, akhalid.

As of this time, able to upload bills assigned to a particular class is unavailable in QuickBooks Online (QBO). I can see how this feature would be beneficial to you and other businesses. If this is what you need, I suggest checking a third-party app that could help you import it. You may also consider the suggestion provided by Fiat Lux - ASIA.

While we continue to make your experience with us even better, in the meantime, I encourage you to star our blog to keep up with any product updates or improvements on the online version:  QuickBooks Online Blog.

For more information about importing bills, check out this article: Import your bills in QuickBooks Online.

If there's anything else you need help with, let me know by adding a comment. I'm more than happy to assist you. Have a great day!