Work-in-Progress (WIP) Valuation
Work-in-Progress (WIP) valuation is the process of putting a value on partly finished goods still on the factory floor at period-end. It appears as inventory under current assets on the balance sheet. It matters because WIP carries direct materials, labour and a share of factory overheads, and valuing it wrongly misstates both closing stock and the profit for the period.
What Is Work-in-Progress (WIP) Valuation?
At any month-end a manufacturer has goods that are started but not complete — steel cut but not welded, garments stitched but not finished. WIP valuation measures the cost accumulated in those items so far: the materials issued, the labour spent, and a systematic allocation of production overheads up to the stage of completion reached. Under AS 2 and Ind AS 2, inventory including WIP is carried at the lower of cost and net realisable value.
An Indian manufacturer meets WIP valuation at every stock-taking and every close. An Ahmedabad auto-components factory with a half-machined batch must value it at materials plus labour plus overheads to the 60% stage it has reached — not at full cost, and not at nil. Because WIP sits between raw material and finished goods, an error here flows straight into cost of goods sold and the reported margin, which is why the stage of completion has to be assessed carefully.
Key terms
- Form ITC-04 Job Work Tracking — Tracks goods sent to job workers, often mid-WIP.
- Direct vs Indirect Factory Overheads — The overhead split that loads into WIP cost.
- Point-of-Sale (POS) Day-End Audit — A retail control, unrelated to factory WIP.
How Work-in-Progress (WIP) Valuation Works
WIP is valued from the shop floor to the balance sheet through set steps:
- 1Identify open WIP at period-end
Physical verification and the production system list every incomplete job — the source of the WIP quantity.
- 2Assess the stage of completion
Production assigns a completion percentage to each job, the artefact that scales the cost to load in.
- 3Accumulate direct costs
Materials issued and direct labour booked to each job are gathered from stores and job cards.
- 4Allocate factory overheads
Production overheads are allocated on normal capacity to the stage reached; abnormal and idle costs are excluded and expensed.
- 5Apply lower of cost and NRV
The accumulated cost is compared to net realisable value, and WIP is carried at the lower on the balance sheet.
Where Work-in-Progress (WIP) Valuation Applies — Manufacturers
WIP valuation is central wherever production spans period-ends:
- Discrete manufacturers — Engineering and auto-component plants carry part-machined batches at each close.
- Process industries — Chemicals, food and textiles hold material in continuous processing.
- Job-work and contract manufacturing — Units processing others' goods must value the stage of work done.
- Long-cycle production — Machinery and equipment makers carry significant WIP between milestones.
- Cost-audited and statutory-audited firms — Any manufacturer under audit must support its WIP valuation basis.
See also: Manufacturing Accounting Services Inventory Accounting & Costing
How to Calculate Work-in-Progress (WIP) Valuation
WIP value = Direct materials + Direct labour + (Factory overheads allocated × Stage of completion)| Input | Where it comes from | Sample value (INR) |
|---|---|---|
| Direct materials issued | Stores / bill of materials | 6,00,000 |
| Direct labour to date | Job cards / payroll | 2,50,000 |
| Factory overheads (to stage, normal capacity) | Cost sheet | 1,50,000 |
WIP value = 6,00,000 + 2,50,000 + 1,50,000 = ₹10,00,000, carried as inventory — subject to the lower of cost and net realisable value.
Work-in-Progress (WIP) Valuation: A Practical Example
| Particulars | Amount (INR) | Treatment |
|---|---|---|
| Materials issued to batch | 6,00,000 | Direct material in WIP |
| Direct labour booked | 2,50,000 | Direct labour in WIP |
| Factory overheads to 60% stage | 1,50,000 | Allocated on normal capacity |
| WIP cost | 10,00,000 | Carried as inventory |
| Idle-capacity overhead excluded | 40,000 | Expensed, not in WIP |
An Ahmedabad auto-components factory has a batch at the 60% stage at month-end. It has consumed ₹6,00,000 of materials and ₹2,50,000 of labour, and allocates ₹1,50,000 of factory overheads on normal capacity, giving a WIP value of ₹10,00,000. A ₹40,000 chunk of overhead relating to idle capacity is excluded and charged straight to profit and loss, so the WIP is not inflated by costs that added no value.
Valuing WIP at full cost: Treating half-finished goods as complete overstates inventory and profit → load cost only to the stage of completion.
Common Mistakes With Work-in-Progress (WIP) Valuation
WIP errors flow directly into margin:
- Valuing WIP at full cost — Treating half-finished goods as complete overstates inventory and profit → load cost only to the stage of completion.
- Loading idle and abnormal costs — Including idle-capacity or abnormal wastage inflates WIP → exclude them and expense in the period.
- Overheads on actual, not normal, capacity — Allocating fixed overheads on low actual output overstates unit cost → allocate on normal capacity.
- Ignoring net realisable value — Carrying WIP above realisable value breaches AS 2 → write down to the lower of cost and NRV.
Work-in-Progress (WIP) valuation is the process of putting a value on partly finished goods still on the factory floor at period-end. It appears as inventory under current assets on the balance sheet. It matters because WIP carries direct materials, labour and a share of factory overheads, and valuing it wrongly misstates both closing stock and the profit for the period.
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