Standard Costing in Manufacturing: Why It Still Matters in the Age of ERP

In an era of sophisticated ERP systems and real-time dashboards, standard costing can seem like a relic of management accounting's past. Yet, in our experience working with manufacturing clients across sectors, the absence of a well-designed standard costing system remains one of the most common root causes of poor cost visibility and margin erosion.

What Standard Costing Provides

Standard costing establishes a pre-determined cost for each unit of production — covering material, labour, and overhead. This benchmark then becomes the basis for variance analysis: understanding why actual costs differ from standard, and what management action is required.

• Material Price Variance: Are you paying more than planned for raw materials?
• Material Usage Variance: Are you consuming more material than the standard allows?
• Labour Rate Variance: Is your workforce costing more per hour than budgeted?
• Labour Efficiency Variance: Is production taking longer than standard?
• Overhead Absorption Variance: Are fixed overheads being recovered as planned?

The ERP Trap

Many companies implement ERP systems and assume that cost visibility will follow automatically. It rarely does. ERP systems are transaction-processing engines — they record what happened. Standard costing is a management tool — it tells you whether what happened was acceptable, and by how much it deviated from plan.

Without a standard costing framework feeding into the ERP, the system produces accurate transaction records but no management insight.

Implementing Standard Costing: Where to Start

The starting point is a Bill of Materials (BOM) review — ensuring that standard material quantities reflect current production reality, not historical assumptions. Labour standards should be based on time-and-motion studies or industrial engineering norms. Overhead standards require a careful analysis of fixed and variable cost behaviour.

Standards should be reviewed and updated at least annually — or more frequently in industries with volatile input costs.