Hello, @mark105.
Unbilled charges are non-posting entries that appears in transaction reports. Let me share some information on how you can removed these transactions in QuickBooks Online.
Having the ability to batch delete your unbilled time charges would certainly save a lot of time. It does not have any impact on the reporting. Currently, the ability to batch delete all unbilled time charges at ones is not available. However, you can removed these transactions one by one.
Also, you can visit our QuickBooks Online blog so you'd be updated on the latest product updates, feature releases and improvements.
Lastly, I've added these articles to help you manage your billable transactions:
Keep in touch with us here in the Community if you have other questions about managing your unbilled timesheets. I'm always here to help.