Which Is Not A Cost Of Quality

8 min read

Understanding Which Items Are Not Considered Costs of Quality

When organizations strive for excellence, they often hear the term cost of quality (CoQ). Now, this concept helps businesses quantify the financial impact of both achieving and failing to meet quality standards. On the flip side, not every expense related to a product or service falls under the CoQ umbrella. Distinguishing true quality‑related costs from unrelated expenditures is essential for accurate budgeting, effective decision‑making, and genuine continuous‑improvement initiatives. This article explores the definition of cost of quality, outlines its typical components, and—most importantly—identifies the expenses that are not classified as costs of quality Less friction, more output..


Introduction: The Purpose of Cost‑of‑Quality Analysis

A cost‑of‑quality analysis provides a structured way to measure how much an organization spends to prevent, detect, and address quality issues. By separating these expenses from ordinary operating costs, managers can:

  • Pinpoint wasteful spending.
  • Prioritize improvement projects with the highest return on investment.
  • Communicate the financial benefits of quality initiatives to senior leadership.

The classic CoQ model divides costs into four categories:

  1. Prevention Costs – investments made to avoid defects (e.g., training, process design, preventive maintenance).
  2. Appraisal (or Inspection) Costs – expenses incurred to evaluate products/services for compliance (e.g., testing, audits, quality‑control equipment).
  3. Internal Failure Costs – costs generated when defects are discovered before delivery (e.g., scrap, rework, downtime).
  4. External Failure Costs – costs arising after the product reaches the customer (e.g., warranty claims, returns, lost goodwill).

While this framework captures the majority of quality‑related spending, many organizations mistakenly label other costs as “quality costs.” Below we examine the most common misconceptions.


Typical Costs That Are Part of Quality

Category Example Why It Counts
Prevention Supplier qualification programs Reduces likelihood of receiving defective components.
Internal Failure Reworking a batch of printed circuit boards Directly linked to a defect discovered during production.
Appraisal Incoming inspection of raw materials Detects non‑conforming items before they enter production.
External Failure Customer warranty repair expenses Represents a failure that impacts the end user.

These items directly influence the quality performance of the organization and therefore belong in a CoQ analysis.


Expenses That Are Not Costs of Quality

Below is a comprehensive list of expenditures that, despite sometimes appearing in cost‑of‑quality reports, do not qualify as CoQ. Understanding why each is excluded helps keep the analysis clean and meaningful.

1. General Administrative Overheads

  • Salaries of senior management (CEO, CFO, etc.)
  • Office rent, utilities, and property taxes
  • Corporate legal and compliance fees unrelated to product quality

Reason: These costs support the overall operation of the business but have no direct causal link to preventing, detecting, or correcting product defects.

2. Marketing and Sales Expenses

  • Advertising campaigns, promotional events, and sponsorships.
  • Sales commissions and travel allowances for the sales team.
  • Market research unrelated to product reliability or performance.

Reason: While marketing influences demand, it does not affect the intrinsic quality of the product or service.

3. Research & Development (R&D) Not Focused on Quality

  • Development of new product features or entirely new product lines.
  • Patent filing and intellectual‑property protection costs.
  • Exploratory research on future technologies.

Reason: R&D aimed at innovation, rather than improving existing process reliability, is considered a product development cost, not a quality cost. Only R&D activities explicitly targeting defect reduction or process robustness belong to prevention costs.

4. General Production Overheads

  • Depreciation of manufacturing equipment (unless directly tied to quality‑control tools).
  • General labor wages for operators who are not performing quality‑related tasks.
  • Energy consumption for running machinery, unrelated to inspection or testing.

Reason: These are part of the cost of goods sold (COGS) or manufacturing overhead, not a cost incurred because of quality performance Easy to understand, harder to ignore..

5. IT Infrastructure Not Linked to Quality Systems

  • Purchase and maintenance of enterprise resource planning (ERP) software.
  • Network bandwidth, server hosting, and cybersecurity services.
  • General office productivity tools (e.g., email, collaboration platforms).

Reason: Unless the IT system is a dedicated quality‑management system (QMS) used for defect tracking, it is a standard operational expense.

6. Employee Benefits Not Specific to Quality Roles

  • Health insurance, retirement contributions, and general employee wellness programs.
  • General training programs covering soft skills or unrelated technical topics.

Reason: Benefits support the workforce as a whole; only quality‑specific training (e.g., Six Sigma certification for process engineers) qualifies as a prevention cost.

7. Capital Expenditures (CapEx) Unrelated to Quality

  • Expansion of factory floor space or construction of new facilities.
  • Purchase of non‑quality‑related machinery (e.g., packaging equipment solely for increasing throughput).
  • Investment in automation that improves speed but not defect detection.

Reason: CapEx is accounted for separately from operating costs. Only capital purchases that directly enable prevention or appraisal (e.g., a new coordinate‑measuring machine) would be counted as a quality cost.

8. Customer Service Costs Not Tied to Defects

  • General call‑center staffing for order inquiries, product information, or billing questions.
  • Loyalty program administration and rewards.
  • Routine account management services.

Reason: These are service costs. Only the portion of customer‑service effort that addresses quality failures (e.g., handling warranty claims) belongs to external failure costs.

9. Regulatory Compliance Costs Unrelated to Product Quality

  • Environmental permits, workplace safety certifications, and tax compliance.
  • Audits for financial reporting standards (e.g., SOX compliance).

Reason: While compliance is essential, it does not directly measure the cost of achieving product quality unless the regulation specifically mandates quality‑related testing (e.g., FDA 21 CFR Part 820 for medical devices).

10. Opportunity Costs and Lost Sales

  • Revenue lost due to market competition or pricing strategy.
  • Potential profit from an alternative product line that was not pursued.

Reason: Opportunity cost is a financial concept rather than an actual cash outlay. CoQ focuses on tangible expenses that can be tracked and managed.


Why Misclassifying Costs Undermines Quality Management

Including non‑quality expenses in a CoQ analysis can produce several detrimental effects:

  1. Inflated Cost Figures – Overstating CoQ masks the true financial impact of quality problems, making it harder to justify improvement projects.
  2. Misleading Benchmarking – Comparing your CoQ with industry standards becomes meaningless if the data sets are not comparable.
  3. Resource Misallocation – Management may invest in “quality” initiatives that actually address unrelated cost drivers, wasting time and money.
  4. Reduced Credibility – Stakeholders lose confidence in the quality‑management system when figures appear inconsistent or unrealistic.

A disciplined approach to categorization ensures that the CoQ metric remains a reliable decision‑making tool That's the whole idea..


Steps to Accurately Separate True Quality Costs

  1. Map All Expenses – Create a detailed ledger of every cost center, tagging each entry with its primary purpose.
  2. Apply the Four‑Category CoQ Model – Assign each expense to Prevention, Appraisal, Internal Failure, or External Failure only if there is a direct, documented link to quality.
  3. Validate with Cross‑Functional Teams – Involve finance, operations, and quality engineers to confirm the relevance of each cost.
  4. Exclude Non‑Quality Items – Remove administrative, marketing, general R&D, and other unrelated costs from the CoQ report.
  5. Review Periodically – As processes evolve, re‑evaluate cost classifications to maintain accuracy.

Frequently Asked Questions (FAQ)

Q1: Can training costs ever be considered a quality cost?
Yes, but only when the training is specifically designed to improve quality—such as Six Sigma, Lean, or equipment‑calibration workshops. General employee development does not qualify.

Q2: What about the cost of a quality‑management software license?
If the software is used exclusively for defect tracking, corrective‑action management, or audit reporting, its license fee is a prevention or appraisal cost. Otherwise, it belongs to general IT expenses.

Q3: Are supplier‑related expenses like travel for supplier audits part of CoQ?
Supplier audits aimed at ensuring component quality are prevention costs. Even so, routine travel for unrelated business meetings is not.

Q4: How should warranty reserves be treated?
Warranty reserves represent anticipated external failure costs. They should be recorded as a liability and included in the CoQ calculation for external failures.

Q5: If a defect leads to a product recall, does the recall cost count as a quality cost?
Absolutely. Recall expenses—logistics, communication, and replacement—are classic external failure costs.


Conclusion: Focusing on Real Quality Costs Drives Genuine Improvement

Identifying which expenses are not part of the cost of quality is as crucial as tracking the true quality‑related costs themselves. By excluding general administrative, marketing, unrelated R&D, and other non‑quality expenditures, organizations obtain a clear, actionable view of how much they truly spend on preventing, detecting, and correcting defects. This clarity enables:

  • Precise targeting of improvement initiatives.
  • Credible reporting to stakeholders.
  • Sustainable cost reductions without compromising product integrity.

A disciplined, well‑structured CoQ analysis—anchored in the four‑category model and free from unrelated cost noise—empowers businesses to turn quality from a cost center into a strategic advantage. Embrace the distinction, focus on genuine quality expenditures, and watch both customer satisfaction and bottom‑line performance rise in tandem.

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