Updating billable hours by batch is currently unavailable in QuickBooks Online, Lisa. Allow me to dig into this matter further to keep you guided.
To make billable hours unbillable, you'll need to go through each entry and click the billable button. Here's how:
- Select Sales, then All sales.
- Choose Unbilled Income in the Type dropdown.
- Locate the time charges you need to update and pick Edit from the Action column.
- Click the Billable to customer button.
- Hit Save.

For more information on handling and correcting billable hours, refer to this material: Track and manage QuickBooks Time in QuickBooks Online.
On the other hand, you'll want to invite your team member as a Time tracking only user to your company, which allows them to enter their own time.
Notify us whenever you need a hand when making time charges non-billable in QuickBooks Online. Kindly click the Reply button below or post directly on the Community page.