The allocation base determines how the accumulated overhead pool is distributed among products. Direct-labor hours emphasize labor usage, machine hours emphasize equipment use, and units produced spread costs by output volume. Selecting a base that reflects production activity produces more meaningful product costs, which improves comparisons of pricing, profitability, and resource use.
A predetermined rate lets costs be assigned as goods are made rather than waiting until all period costs are known. It uses the overhead pool and a selected allocation base, then applies that rate to production activity. This supports timely product costing, inventory valuation, budgeting, and pricing decisions.
Machine hours associate overhead assignment with equipment use, whereas direct-labor hours associate it with labor activity. Units produced provide a volume-based alternative. Because these bases distribute the same accumulated costs differently, the selected measure can change the overhead assigned to each product and therefore affect reported product costs and profitability analysis.
First, accumulate qualifying indirect production costs in an overhead pool. Next, select an allocation base, such as direct-labor hours, machine hours, or units produced, and establish a predetermined overhead rate. Finally, apply that rate to each product according to its recorded activity. The resulting assignments support product costing and inventory valuation.
Allocated overhead becomes part of the cost information used to value inventory and assess what products cost to make. Managers can use the same product-cost information when reviewing prices and profitability. If assignments do not reflect production activity, comparisons among products may be less informative, limiting the usefulness of pricing and profitability analysis.
Reviewing allocated costs alongside production activity can help managers identify underused capacity and control production spending. The analysis also supports budgeting by connecting production costs with an allocation base. These uses extend overhead accounting beyond recording costs: they provide information for evaluating resource use and monitoring the financial effects of factory operations.