Hi there, @CherylAM.
Thanks for posting in the Community. I'm here to help share some information about the billable check mark on a bill.
You can uncheck all time entries and expenses as billable on the Company Preferences page. However, when entering items on a bill, it will still automatically check your billable column once you choose a Customer:Job on the drop-down arrow. You can still remove the check mark on the bill itself.
Here's how to unmark the billable on the Preferences:
This will disable the automatic billable check mark once you entered expenses on your bill.
If you enter items on a bill, just make sure to uncheck the billable column if you enter the customer job.
This should help point you in the right direction.
If you need related articles for future use, please feel free to visit our site: Help articles for QuickBooks Desktop.
Keep me posted if you have other questions about entering your bill. I'm always here to help.