Ask any plant head in India about their cost of poor quality, and they will likely quote you a number between 2% and 4% of revenue. This figure usually represents only the most visible costs — scrap, rework, and reject materials. The true cost of poor quality, when you include all internal and external failure costs plus prevention and appraisal costs, is typically 15-25% of revenue. For a ₹500 crore plant, that represents ₹75-125 crore in annual losses.
The hidden costs are the ones that rarely appear on any P&L line item. When a production line stops due to a quality issue, the overtime needed to recover lost output is charged to the production budget, not the quality budget. When a customer complaint requires an engineering team to spend three days investigating root cause, those hours are absorbed into general overhead. When warranty claims spike, the cost is attributed to customer service, not manufacturing quality.
To calculate your true COPQ, start by categorising costs into three buckets: prevention costs (training, process design, supplier quality management), appraisal costs (inspection, testing, audits), and failure costs (internal failures like scrap and rework, and external failures like returns, warranty, and customer penalties). For each category, include both direct costs and the opportunity cost of capacity and resources consumed.
We recommend conducting a structured COPQ assessment at least annually. The exercise itself creates awareness and builds urgency for improvement. In our experience, firms that accurately understand their COPQ are 3-4 times more likely to secure investment approval for quality improvement initiatives. The numbers speak for themselves — you just have to know where to look.
The hidden costs are the ones that rarely appear on any P&L line item. When a production line stops due to a quality issue, the overtime needed to recover lost output is charged to the production budget, not the quality budget. When a customer complaint requires an engineering team to spend three days investigating root cause, those hours are absorbed into general overhead. When warranty claims spike, the cost is attributed to customer service, not manufacturing quality.
To calculate your true COPQ, start by categorising costs into three buckets: prevention costs (training, process design, supplier quality management), appraisal costs (inspection, testing, audits), and failure costs (internal failures like scrap and rework, and external failures like returns, warranty, and customer penalties). For each category, include both direct costs and the opportunity cost of capacity and resources consumed.
We recommend conducting a structured COPQ assessment at least annually. The exercise itself creates awareness and builds urgency for improvement. In our experience, firms that accurately understand their COPQ are 3-4 times more likely to secure investment approval for quality improvement initiatives. The numbers speak for themselves — you just have to know where to look.
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