Inventory Shrinkage

Inventory shrinkage refers to the loss of inventory due to theft, damage, administrative errors, or supplier fraud, measured as the difference between recorded and physical stock counts. This variance represents products that should be available according to system records but are missing when physical inventory is counted. Shrinkage directly impacts profitability by creating unaccounted-for losses that reduce available stock and skew inventory accuracy metrics.

Why it matters for e-commerce brands

For Shopify and DTC merchants, inventory shrinkage creates a cascade of operational problems beyond just financial loss. When your system shows inventory that doesn't physically exist, you risk overselling products, leading to canceled orders, disappointed customers, and damaged brand reputation. High shrinkage rates also make it difficult to forecast demand accurately and maintain optimal stock levels, forcing merchants to carry excess safety stock that ties up working capital.

Example

A Shopify apparel brand conducts a quarterly physical count and discovers they have 850 units of a popular t-shirt, but their inventory management system shows 920 units. The 70-unit discrepancy (7.6% shrinkage) is traced to multiple causes: 30 units damaged during warehouse handling but not properly written off in the system, 25 units stolen from their 3PL warehouse, 10 units never actually received from the supplier despite being entered as received, and 5 units due to miscounts during previous receiving. This shrinkage represents roughly $1,400 in lost inventory value and resulted in 12 oversold orders that had to be canceled before the discrepancy was discovered.

Related terms

• Cycle counting
• Inventory accuracy
• Dead stock
• Write-offs
• Stock reconciliation