I can see the inconvenience of unchecking the billable option in every transaction in QuickBooks Desktop (QBDT), @Libbpatt. That's why I'm here to share more details about this below.

Though you uncheck the Mark all time entries as billable and Mark all expenses as billable boxes in your Company Preferences, the billable column will still automatically check once you select a customer under the Customer:Job column when entering your items on a bill.

Also, there are two Accounts Payable (A/P) workflows available in QBDT. To help you choose the one that best suits your business, you may want to check out this article as your guide: Accounts Payable workflows in QuickBooks Desktop.

Please feel free to leave a comment below if you have other concerns about managing billable expenses in QBDT. I'm always ready to help. Take care, @Libbpatt.