Overhead generally refers to indirect expenses, i.e., those which cannot be directly assigned to a product (cost objective). The term stems from the need to pay for the roof and the lights that are over our heads and benefit more than one activity. In that respect, G&A is one of many "overhead" accounts. In most enterprise specific accounting applications the term "overhead" is usually applied to departmental expense accounts with names like "manufacturing overhead," or "engineering overhead," while other types of indirect expenses get process-related names such as "material handling.". At the top of the chain is the G&A account which is the "overhead" for running the entire business.