Meaning
Accounting variances occur when actual production volumes fall below the planned capacity, leaving a portion of fixed manufacturing costs unallocated to produced units. Having unabsorbed fixed overhead increases the calculated cost per unit for those items that were completed, reducing the gross margin of the facility. This variance is a direct result of underutilizing factory capacity.
Cost Apportionment
Fixed expenses such as factory rent, equipment depreciation, and supervisory salaries are distributed across the projected output. When production falls short, the unabsorbed fixed overhead cannot be capitalized into inventory values. Instead, these unallocated expenses are charged directly to the income statement as a period expense in the quarter they occurred, directly reducing the company’s reported profitability.
Production Variance
Equipment breakdowns, material shortages, and labor absenteeism are common causes of lower-than-planned production output. This unabsorbed fixed overhead accumulates quickly when large assembly lines remain idle for extended periods. Monitoring this variance helps management identify inefficiency in resource planning.
Financial Impact
Companies must either adjust their production schedules or lower their fixed costs to maintain profitability when demand remains low. The unabsorbed fixed overhead reduces the operating profit of the business by increasing the cost of goods sold without a corresponding increase in revenue.
