Hi, batvalil.
QuickBooks follows the rule of billable expense which are the service, work or supplies that are reimbursable by your clients. This is the reason why you can only link it to your customers.
Moreover, each billable expense you’ve added to an invoice will create a separate item. This is to enumerate or details the exact number of services/work or supplies reimbursable to a customer.
For now, you might want to share your preferred way of handing billable expense to our developers. Just click the Gear icon and select Feedback.
Stay in touch with me if there's anything else you need.
