How to Write Off Abnormal Material Wastage on Site
Writing off materials damaged or wasted beyond acceptable norms on the construction site.
| Account Name | Type | Debit ($) | Credit ($) |
|---|---|---|---|
| Material Wastage Expense | Expense (+) | 3,500.00 | - |
| Work-in-Progress / Material Inventory | Asset (-) | - | 3,500.00 |
💡 Accountant's Note
Normal wastage is usually built into the bill of quantities. Abnormal wastage (theft, negligence, accidents) is expensed separately so project managers can identify efficiency problems.
Practitioner & Systems Framework
💻 ERP Architecture
Abnormal wastage MUST NOT remain in project WIP, as it does not contribute to completion and skews POC calculations. Process an inventory adjustment/write-off in the ERP mapping the cost to a 'Period Expense - Wastage' account.
⚠️ Audit Flags
IFRS 15 explicitly states that abnormal amounts of wasted materials must be excluded from the cost-to-cost POC calculation. Auditors will zero in on how the company distinguishes between normal (budgeted) and abnormal wastage.
📄 Required Documentation
Site incident report (damage/theft), project manager's wastage write-off approval, and adjusted POC calculation schedule.
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Expert Analysis by Qusai Ahmad
General Accountant Supervisor & IFRS Specialist
Specialized in SAP GUI automation and Middle Eastern tax compliance. Building digital tools for the next generation of finance leaders.