[Opinion] From Costing Clarity to Financial Control | How ABC and Expense Management Transformed a Service Business

Rathina Bharathi A – [2025] 173 taxmann.com 427 (Article)

1. Abstract

This article presents a practical and comprehensive implementation of Activity-Based Costing (ABC) in the service sector, using a case study of X Ltd, a multi-service bike dealership offering bike sales, servicing, spare parts, accessories, and insurance. The study demonstrates how ABC improves cost accuracy, departmental profitability analysis, and strategic pricing decisions.

Traditional costing systems often fail to allocate overheads effectively, leading to under pricing, departmental losses, and hidden inefficiencies. By applying ABC, X Ltd identifies specific cost drivers, allocates costs based on activity consumption, and develops accurate Prime Cost Sheets for each business function. The article also includes a detailed overhead cost pool analysis, profit reconciliation, and a comparison between ABC-based profit (Rs. 36.39 lakhs) and financial profit (net loss of Rs. 1.84 lakhs), highlighting the operational efficiency masked by financial accounting provisions.

Recommendations are provided for correcting the underperformance of departments like Bike Service and Insurance, which initially reported losses due to improper overhead allocation. Through ABC, X Ltd transformed its pricing strategy, ensured fair cost recovery, and gained deeper financial insights.

The article serves as a practical guide for cost accountants, finance professionals, and business owners seeking to apply ABC in service-oriented businesses for improved profitability and informed decision-making.

2. Introduction

In the modern service sector, accurate cost allocation is crucial for ensuring profitability and strategic decision-making. Traditional costing methods often rely on broad, arbitrary overhead allocations, leading to inaccurate pricing and profit analysis. Activity-Based Costing (ABC) provides a more structured and logical approach by assigning costs based on actual resource consumption. Implementing ABC in the service sector allows businesses to identify cost drivers, optimize pricing strategies, and enhance overall efficiency.

This article focuses on the practical implementation of ABC in the service sector, specifically in:

• Bike Sales – Allocating costs based on key activities such as procurement, warehousing, dealership operations, and customer acquisition.
• Bike Service – Assigning costs to specific service activities like diagnostics, repairs, labor, and spare part usage to ensure accurate service pricing.
• Sale of Bike Accessories – Tracking costs related to inventory management, showroom space utilization, and promotional expenses.
• Sale of Bike Spare Parts – Allocating costs based on procurement, storage, and distribution to improve pricing and inventory control.
• Bike Insurance – Allocating costs related to policy processing, insurer coordination, customer support, and promotional efforts to ensure efficient commission-based revenue management.

The article will provide a step-by-step approach to implementing ABC in service businesses, including:

• Identifying cost drivers and activities relevant to service operations.
• Preparing an ABC-based cost sheet to allocate overheads effectively.
• Integrating ABC into a Trading and Profit & Loss Account for financial reporting.
• Reconciliation of Costing Profit with Financial Profit, ensuring accuracy and compliance.

By implementing ABC, businesses in the bike sales and service sector can achieve greater cost transparency, improved pricing strategies, and better financial control. This article serves as a practical guide for service businesses looking to leverage ABC for enhanced profitability and operational efficiency.

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