Overhead is a critical concept for businesses, as it represents the fixed costs that are incurred regardless of production or sales levels. Efficient management of overhead is crucial for maintaining profitability, as high overhead costs can eat into a company’s margins. Overhead is classified into two categories: fixed overhead, which remains constant regardless of business activity (e. g. , rent, insurance), and variable overhead, which fluctuates with production levels (e. g. , utilities, office supplies).