Write Off
Is a write-off the same as a write-down?
No. A write-off removes the item's value completely when it has no remaining economic value, while a write-down reduces value when some recoverable value remains.
Should write-offs hit COGS or a separate account?
Small or immaterial losses may be recorded in cost of goods sold, but significant losses are often posted to a separate inventory write-off expense account to preserve margin visibility and audit clarity.
What data should be captured in an ERP write-off transaction?
At minimum: item code, quantity, location/warehouse, lot or batch if applicable, reason code, cost basis, expense account, and disposal or internal-use reference.
An inventory write-off is the formal removal of stock value from records when items have no recoverable value for sale, production, or reuse, such as damaged, expired, stolen, obsolete, or internally used goods. It is recorded as a stock adjustment that reduces on-hand quantity, logs a reason, and posts cost to an expense account, reconciling physical count and book value.
On a manufacturing shop floor, write-offs are triggered when a component reel, batch, pallet, or work-in-process item cannot be issued because it was contaminated, crushed, expired, heat-damaged, or failed incoming QC. The transaction begins during cycle counting, receiving inspection, or damage reporting. An operator selects warehouse, location, item, quantity, reason code, and expense account so the system reduces stock and records the loss at cost. For lot-controlled or expiry-controlled raw materials, leaving unusable stock open causes false available-to-promise, incorrect reorder signals, and production plans that assume material exists. Cost accounting then posts the loss either to cost of goods sold if immaterial, or to a separate inventory write-off expense account if significant, preserving gross margin visibility. A correct process validates non-usable status, calculates value via FIFO or average cost, records with reason code, and documents disposal or internal use.
Phantom inventory and bad production plans: Damaged or expired material remains in the ERP, so MRP releases orders against stock that cannot be issued, causing line stoppages and expedited replenishment when receiving, QC hold, and warehouse locations are not synchronized.
Incorrect costing and margin distortion: Posting significant losses to routine cost of goods sold instead of a distinct write-off expense hides true scrap and yield trends, especially when high-value lots are scrapped at the wrong cost basis.
Weak reason codes and disposal evidence: Standardized reasons, approvals, and proof of destruction are missing, so audits and root-cause analysis fail, and recurring theft, spoilage, or contamination stays hidden behind repeated 'miscellaneous damage' write-offs.