Incremental costing

Welcome to this session on incremental costing, a key concept in management accounting that supports decision making for managers in both manufacturing and service settings. Incremental costing focuses on the additional costs and revenues resulting from selecting one alternative over another. The core principle is to consider only costs and benefits that change due to the decision. These are called relevant or incremental costs. This approach helps managers make informed choices, such as accepting special orders or discontinuing product lines. Incremental costs are future expenses directly affected by a decision, such as added raw materials, extra labor or specific project overheads. Incremental revenues are the additional income generated by the decision. A decision is favorable if incremental revenue exceeds incremental cost. It's important to distinguish these from sunk costs, irrecoverable expenses that shouldn't influence decisions. Incremental costing is especially helpful for short term choices like pricing special orders or evaluating make or buy options. Incremental costing plays a critical role when managers face decisions such as whether to accept a one off special order, outsource a component, or discontinue a product line. For example, when a business is offered a special order at a lower than normal price, incremental costing guides the manager to compare the additional revenue from the order with the additional variable costs needed to fulfill it. Fixed costs that do not change as a result of the order are excluded from the calculation