Key Takeaway: Shrinkage is the gap between what your system says you have and what actually exists. In most businesses, it's higher than anyone would guess until it's measured.
What's on This Page
The Formula
The Four Main Causes
- Employee theft. Often the largest single category in retail
- Customer theft. Shoplifting, more relevant for open-floor retail
- Administrative error. Miscounts, data entry mistakes, pricing errors
- Vendor/supplier fraud. Short shipments billed as full quantity
What's a Healthy Number?
Industry benchmarks generally put healthy shrinkage around 1-2% of inventory value. A hardware store case study on our site found shrinkage running closer to 7% before fixing the underlying process. See the full story.
Reducing Shrinkage
- Regular cycle counts catch problems within weeks instead of a year
- A documented stock reconciliation process (see Stock Reconciliation Guide) investigates the reason before adjusting numbers
- 3-way matching on purchase orders catches supplier short-shipments
- Access controls and audit logging reduce both employee and administrative error
For further reading, see GS1's barcode standards documentation.
Checklist
- Calculate current shrinkage as a percentage of inventory value
- Compare against the 1-2% healthy benchmark
- Break shrinkage down by likely cause where possible
- Set up or tighten cycle counting frequency
- Confirm 3-way invoice matching is being used consistently
- Review access controls for high-shrinkage categories
Common Mistakes
FAQ
What's a healthy shrinkage rate?
Industry benchmarks generally place healthy shrinkage around 1-2% of inventory value. Meaningfully above that is worth investigating.
Is employee theft always the biggest cause?
It's often the largest single category in retail, but administrative error (miscounts, data entry mistakes) is frequently underestimated as a contributor.
How quickly can shrinkage be reduced once identified?
Process fixes like regular cycle counting and 3-way invoice matching often show measurable improvement within a few months.
Does shrinkage always mean something was stolen?
No. A meaningful share of shrinkage in most small businesses comes from counting and data entry errors rather than theft.
Calculate This For Your Business
Related Guides in the Inventory Academy
- Stock Reconciliation Guide. the process that catches shrinkage early
- Inventory Audit Guide. the full audit that measures this number properly
- Why Inventory Mistakes Destroy Small Businesses. another guide in the Inventory Academy