Meaning
Indirect manufacturing costs represent the pool of expenses that remain constant regardless of the volume of goods produced within a specific range of activity. Fixed factory overhead includes expenses like rent and property taxes that remain static throughout the year. These costs must be paid even if the machines are idle.
Allocation Ratio
Allocation of these expenses to individual units depends on the total number of items manufactured. When production is high, the fixed factory overhead per unit decreases, making each item more profitable to sell. Low production volumes cause the opposite effect, where each unit must carry a larger share of the facility costs.
Threshold Measurement
Determination of the break even point for a new product relies on an accurate count of these unchanging expenses. Because fixed factory overhead does not move with the run rate, it creates a baseline expense level that the operation must clear. Scaling from a pilot run to full production helps spread this burden across a larger base.
Structural Control
Management of a facility requires a clear distinction between costs that can be cut and those that are committed. Controlling fixed factory overhead often involves long term decisions about the size of the plant and the number of permanent staff. Reducing these costs usually requires a structural change to the business rather than a simple reduction in material waste.
A company might consolidate its operations into a single large site to achieve better economies of scale and lower its total expense base.
