Retail Shrinkage: Measuring and Reducing Stock Loss

Shrinkage is the difference between the inventory you should have (based on what you bought and sold) and the inventory you actually have (based on a stock count).

Shrinkage % = (Inventory variance ÷ Total retail value of goods received) × 100

UK retail shrinkage averages around 1–2% of sales. Shrinkage above 3% is significant. It comes from four sources:

1. External theft (shoplifting): ~40–50% of total shrinkage in most retailers

2. Internal theft (employee theft): ~30% — often harder to detect and higher-value

3. Administrative errors: ~15–20% — goods received incorrectly, scanning errors, pricing mistakes

4. Supplier fraud: ~5% — short-deliveries or substituted goods

With POS and inventory data connected, AskBiz can show you:

• Inventory variance by product — products with consistent negative variance (sold more than received) are either theft targets or stock count errors
• Variance by time period — shrinkage that spikes at certain times (weekends, specific shifts) may indicate a pattern
• High-shrinkage categories — small, high-value items are typical targets

Ask AskBiz: *'Which products have the highest inventory variance over the last 3 months?'* or *'Show me stock variance by product category this quarter.'*

Administrative errors are often the easiest shrinkage to fix:

1. Standardise goods-receiving procedures — count every delivery against the delivery note; record discrepancies immediately

2. Conduct regular cycle counts — instead of one annual stock count, count a small section of your inventory every week. This catches errors early and keeps inventory data accurate.

3. Fix pricing errors quickly — over-ringing (scanning wrong item) or under-ringing creates both financial loss and data inaccuracies

4. Audit waste and damaged goods records — ensure all damaged or unsellable items are properly written off rather than simply disappearing from inventory

Use AskBiz to build a monthly shrinkage dashboard:

• Total shrinkage £ and %
• Shrinkage by product category
• Shrinkage by store (if multi-site)
• Trend vs. prior month and prior year

A rising shrinkage trend in a specific category or store warrants investigation. A falling trend after implementing new security measures demonstrates ROI on those measures.

Benchmark against industry averages for your retail category — fashion retail shrinkage averages ~1.5%; electronics and accessories can be 2–4% due to higher theft targets.