Cost accounting is one of the most important tools in modern business management. It goes far beyond calculating sales prices, helping businesses understand the profitability of products, services, operations, and even customer segments.
Despite its importance, many small and medium-sized businesses in Brazil still struggle to choose and apply the right costing method, resulting in distorted pricing, tight margins, and poorly informed decisions.
This article explains the main costing methods in simple terms and shows how to use them in day-to-day operations for more strategic financial management.
Main costing methods
1. Absorption Costing
Under this method, all costs are allocated to the product: fixed, variable, direct, and indirect.
This is the model required under Brazilian accounting and tax law.
Advantage: provides a complete view of the company's cost structure.
Disadvantage: may inflate unit costs during periods of low production, reducing competitiveness.
2. Variable Costing (or Direct Costing)
Only variable costs are considered when setting the price.
Fixed costs are not included in the product cost calculation—they are treated as expenses for the period.
Advantage: excellent for short-term decisions and contribution margin analysis.
Disadvantage: it does not meet tax requirements, so it cannot replace absorption costing.
3. Standard Costing
It is based on previously estimated costs, which serve as a benchmark for comparing actual and planned costs.
It is very useful for cost control and productivity.
Advantage: makes it easier to identify variances and opportunities for improvement.
Disadvantage: may lead to distortions in periods of high inflation or significant exchange rate fluctuations.
4. Activity-Based Costing (ABC)
ABC allocates costs based on the activities that actually generate them, providing a far more strategic and accurate view.
Advantage: provides highly accurate cost allocation.
Disadvantage: requires greater operational complexity, more implementation time, and well-structured data.
Practical applications of costing methods
The choice of method directly affects operational and strategic decisions.
See how each industry can apply it in practice:
Manufacturing
- Calculation of unit cost by product.
- Profitability analysis by product line or batch.
- A solid foundation for pricing and product mix reviews.
Retail
- Setting the selling price by category.
- Comparative analysis of product margins.
- Identification of traffic-driving items vs. margin-driving items.
Services
- Hourly cost calculation for on-demand projects.
- Profitability assessment by contract or client.
- Support for more accurate commercial proposals.
Mastering costing methods is more than a technical requirement—it is a competitive advantage.
Each method offers a different perspective, and none needs to be used in isolation.
To meet tax requirements, absorption costing is essential.
For management decisions, margin analysis, projections, and simulations, methods such as variable costing or ABC offer far greater accuracy and flexibility.
Companies that combine these models can set better prices, understand their true profitability, and make much more informed financial decisions.
Want to gain a deeper understanding of your true costs and build a more strategic pricing approach?
👉 Talk to our experts and discover how to apply the right method to your business.
