COPQ — Cost of Poor Quality

Last updated: 2026-02-05

In plain English

COPQ represents the costs associated with defects, rework, scrap, and failures caused by poor quality.

COPQ is what bad quality actually costs.

Not in theory — in money.

Scrap, rework, delays, complaints, warranty, firefighting.
All of it adds up.

What they actually mean

COPQ is often much higher than reported.

Many costs are hidden:

overtime

extra inspections

lost trust

stressed teams

If quality problems feel expensive, COPQ is probably already eating margins.

Example

“Reducing defects significantly lowered the COPQ.”

Does it actually matter?

✅ Yes — financially.
COPQ turns quality from a “nice to have” into a business decision.


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