Dead Stock
Dead stock is inventory that has remained unsold or unused for an extended period and is no longer expected to sell or be consumed at full value. It includes finished goods, components, raw materials, expired items, damaged goods, or obsolete parts still on hand but not supporting production or demand. Commonly classified after 180 or 365 days without movement, though thresholds vary by company policy.
On the shop floor, dead stock appears when an ERP or WMS record shows no issues, no consumption, and no open demand for an item that still occupies bin locations, rack space, or WIP staging. It typically arrives through excess component buys, obsolete BOM parts after engineering changes, overproduced finished goods, or expired raw materials that cannot be issued without exception handling. In the warehouse, non-moving SKUs consume storage and labor while generating no throughput, reducing slot capacity, pick-face efficiency, and replenishment velocity. Procurement and MRP see dead stock as forecast error, poor reorder logic, minimum-order overshoots, supplier MOQs, or weak lifecycle control. Teams track it by reviewing last movement date, on-hand quantity, open demand, expiry date, and approved substitute usage, then flag candidates for write-down, liquidation, return, scrap, or engineering disposition. Financially, dead stock behaves like a liability tied up in inventory, consuming cash and space without revenue.
- Overbuying against bad demand signals: When planners overestimate usage or fail to reset reorder points after a product slowdown, materials arrive faster than they are consumed, creating pallets of dormant stock that eventually become dead stock.
- Engineering change and obsolescence mismatch: When a part number is superseded but old stock is not blocked, consumed, or returned in time, the warehouse keeps components that no longer fit current BOMs and cannot be issued or sold.
- Expiry, damage, or seasonal timing failure: Perishable raw materials, season-specific SKUs, or fragile goods miss their usable window due to slow receiving, poor FIFO/FEFO discipline, or demand timing shifts, leaving inventory that is functionally unsaleable.
How is dead stock different from obsolete stock?
Dead stock refers to inventory that is not moving and unlikely to sell, while obsolete stock is more specifically inventory that is no longer usable or marketable because it is outdated, expired, or superseded. The terms overlap but are not perfectly identical.
How do companies quantify dead stock?
A common formula is dead stock value equals unsold units multiplied by unit cost. Organizations may also calculate dead stock percentage as dead stock value divided by total inventory value, multiplied by 100.
What operational risk exists if dead stock is ignored?
Ignoring dead stock ties up cash and warehouse space, distorts inventory accuracy, increases carrying cost, and can hide shortages of fast-moving items because capacity and working capital are consumed by non-moving stock.