“The 98%”: Strategic marketing to mitigate internal theft in retail – KEY FACTS

• Retailers detect only 1.6-2% of internal theft incidents
• Employees may account for up to half of all retail theft value
• Targeted staff communications can cut shrink by 15-78%
• High staff turnover creates opportunities for internal theft

Understanding the internal theft detection gap

Store managers know internal theft is a major contributor to retail loss. Yet it’s mostly an invisible crime. Our research suggests that while there may be 2.8 million internal theft incidents, only 44,834 are ever detected.

That means retailers identify just 1.6–2% of offenders. So, the remaining 98% are never caught, making traditional detection-based strategies fundamentally limited.

This gap reframes the challenge. Retailers can’t “arrest their way out” of internal theft. Instead, they should try to influence behaviour long before offences occur.

Internal theft: A bigger slice of loss than many realise

Studies show employees account for a striking share of retail theft. Some estimates suggest staff may be responsible for up to 50% of the total value of all theft in retail.

More recent national data reinforces the scale: internal theft represents 22% of German retail crime losses, 32% in New Zealand, 24% in Australia, and 29% of shrink in the US.

Internal incidents are often higher-value too (averaging almost €1,000 per case in a US survey). For many retailers, internal theft is one of the biggest contributors to loss.

In the fight against internal theft, communications work

When retailers communicate directly with staff about dishonesty, the impact is measurable and fast. Communication can be a powerful behaviour change tool.

In one UK grocery trial, prepared food losses fell 6% while the control group saw a 33% increase. Tobacco losses dropped 78%, performing 293% better than controls. Overall shrink slowed by 15%.

Another retailer saw a 15% reduction in shrinkage and 5% reduction in cash loss after pairing remote CCTV with internal messaging. Outside retail, behavioural research shows that simple “watching eyes” imagery can cut theft by 62%.

High staff turnover creates a perfect storm for vulnerability

Retail is high churn. UK retailers report staff turnover of 50–57%, while 58% of employees saying they don’t feel secure in their jobs…more than double the figure from 2020.

High turnover makes consistent training harder, weakens internal controls, and increases opportunities for opportunistic theft.

It also erodes workplace culture, which is one of the strongest protective factors against dishonest behaviour. Making internal theft easier to commit, harder to spot, and more expensive to fix.

Quoting us? Please credit ECR Retail Loss and link back to the research.