Query: What is a non-billable expense?
Context: While billable expenses are costs a client has agreed to be billed for, non-billable expenses are costs related to your work that most clients are generally unwilling to reimburse. For many agencies and contractors, non-billable expenses will make up a large majority of their business costs. Examples of non-billable costs may be business travel, travel insurance, software subscription fees, unique or special training, materials, and business supplies.