Activity Based Costing (ABC)

Introduction: Activity Based Costing (ABC)

Activity Based Costing (ABC) is a modern costing method that assigns costs to the activities that generate them. Unlike traditional systems, which spread indirect costs evenly, ABC links expenses directly to processes. This gives managers a more accurate view of where money is really being spent.

Background

ABC was developed in the 1980s by Robert Kaplan, who also co-created the Balanced Scorecard. It grew out of the need for more precise cost allocation in complex organisations, where traditional costing methods often gave misleading results.

Key Elements / Features

• Transparency – ABC shows the true cost of each activity.
• Causal relationship – Costs are directly linked to the processes that generate them.
• Decision support – Managers can use the data to improve pricing, efficiency, and resource use.

Applications / Examples

• Product costing – Helps companies see the real cost of producing each item or service.
• Cost control – Identifies activities that consume resources but add little value.
• Strategic planning – Supports decisions such as whether to outsource, automate, or redesign processes.

For example, in a manufacturing firm, ABC can show that one product line requires more machine time and customer support than another, even if they look similar under traditional costing.

Relevance / Impact

Activity Based Costing improves accuracy and transparency in financial management. It highlights which activities drive costs, helping managers cut waste, set fair prices, and make strategic choices. This makes it a powerful tool for profitability and efficiency in complex businesses.

See also

• Balanced Scorecard
• Cost of Quality
• Lean Accounting
• Value Stream Costing