Loss, theft, damage, and admin error cost on inventory.
Inputs
Annual shrinkage cost
Total annual loss—
% of COGS
—
vs industry average (1.8%)
—
Per-month average
—
Loss by cause
Cause
%
Annual loss
Mitigation
About this calculator
Inventory shrinkage is the silent margin killer most operators don\'t track. Industry averages run 1.5-2.5% of inventory value annually — meaningful at any scale. On $2M of annual COGS, even a normal 2% shrinkage rate is $40K of loss most operators absorb without investigation.
This calculator quantifies shrinkage by cause: damage and returns loss (typically the largest single component), theft (employee + customer), admin and counting errors, and supplier short-ships. The model totals annual loss and benchmarks against the 1.8% industry average. Operators above 2% have a fixable problem; operators above 5% have a systemic issue requiring immediate process changes.
The mitigation playbook by cause: damage = better packaging + carrier audit + photograph receiving. Theft = camera coverage + two-person rule on high-value moves + random audits + background checks. Admin errors = barcoding + scanner-based pick-pack + quarterly cycle counts. Supplier short-ships = photograph received pallets + insurance claims + supplier diversification when chronic.
Pair with the Inventory Cash Tied Up calculator (broader inventory cost), Inventory Turnover calculator (velocity drives or hides shrinkage), Returns Cost calculator (related cost stream), and Dead Stock Cost calculator (slow inventory = damage risk). Most successful operators institutionalize quarterly cycle counts and review shrinkage rate as a P&L line item — visibility alone reduces shrinkage 20-30% over the first 6 months of measurement.
Frequently asked questions
What's a typical shrinkage rate?
Industry average: 1.5-2.5% of inventory value annually. By cause: damage (30-40%), employee theft (25-35%), admin/inventory errors (15-25%), customer theft / chargebacks (10-15%), supplier short-ships (5-10%). DTC ecommerce typically runs lower (under 1.5%) than physical retail.
How do I measure it?
Compare physical inventory count to system count quarterly. Difference = shrinkage. Track by cause: returns to inventory that don't come back, items found broken, count-vs-system gaps after warehouse audits. Most operators don't formally track until it becomes a problem.
How do I reduce damage?
Better packaging in transit (the leading cause of damage shrinkage). Audit cartons monthly for crush/water damage. Switch carriers if damage rate stays elevated. Photograph received pallets — supplier short-ships and damaged-on-receipt are recoverable if documented.
How do I reduce theft?
Camera coverage of warehouse, especially around shipping/receiving. Two-person rule for inventory moves above $500. Random audits without warning. Background checks on warehouse hires. Most theft is opportunistic — visibility and audits reduce it 50-70%.
When is shrinkage worth investigating?
When it exceeds 2% of sales. Below 2% = normal operational loss. Above 2% = systemic issue (process gap, theft, supplier problem, fulfillment errors). Above 5% = major problem requiring immediate audit and process changes.