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Auto-component Tier 1 inventory valuation under Ind AS 2 requires monthly cost-vs-NRV testing across thousands of WIP and finished-good SKUs, fixed-overhead absorption based on normal capacity (with unabsorbed portion expensed not capitalised), abnormal-waste exclusion above engineered standard yield (stamping skeleton, forging flash, casting melt-loss), and slow-moving NRV provision build for platform-cycle stock approaching programme end-of-life. A typical ₹180 crore casting Tier 1 closing month-end carries 2,400 active SKUs, 4 furnace cost centres, 12 machining cost centres, and a 14-bucket slow-moving ageing schedule — none of which a generic ERP costing module values together correctly.
Apply Ind AS 2 layer by layer. Capitalise direct material at landed cost (LME/JPC index-linked plus customs, net of GST ITC). Capitalise direct labour at standard wage rate. Capitalise variable production overhead at actual rate and fixed production overhead at normal-capacity absorption rate. Exclude abnormal waste above engineered yield, storage costs, administrative overhead, and selling costs. Run cost-vs-NRV test per SKU at month-end. Apply slow-moving provision matrix by ageing bucket. Reconcile WIP movement at each cost centre against physical count quarterly.
SKU master with cost-layer tagging (direct material / direct labour / variable overhead / fixed overhead), normal-capacity baseline per cost centre updated annually, engineered standard-yield rate per process (stamping coil-to-part / forging billet-to-part / casting melt-to-part / machining stock-removal), abnormal-waste threshold formula, NRV reference per SKU (selling price minus costs-to-complete minus costs-to-sell), slow-moving ageing bucket matrix with provision rate per bucket, LME/JPC index feed for raw material cost layer.
A month-end inventory valuation register per SKU showing cost layers, NRV, lower-of-cost-or-NRV booked value, slow-moving provision applied, and reconciliation to physical count where applicable. A monthly fixed-overhead-absorption report showing actual vs normal capacity and the unabsorbed portion routed to P&L. An audit-defensible trail for the Schedule III Division II inventory disclosure and the statutory auditor's substantive testing.
A finance controller at a ₹180 crore casting Tier 1 in Kolhapur closes the May books and pulls the month-end inventory working: ₹38.4 crore of WIP across four furnace lines, ₹14.2 crore of finished-good stock across 2,400 SKUs, an aluminium price spike on LME that lifted raw material cost by ₹2.1 crore, a 78% capacity utilisation against an 85% normal-capacity baseline that left ₹46 lakh of fixed overhead unabsorbed, and 312 SKUs ageing into the 12-month slow-moving bucket. None of this is one valuation number. Ind AS 2 forces every SKU through the same lower-of-cost-or-NRV test, with abnormal-waste exclusion above engineered yield and a strict normal-capacity rule for fixed-overhead absorption.
This guide walks inventory valuation auto component Ind AS 2 India for a WIP-heavy operation. The standard is short — 42 paragraphs — but the operational complexity at a stamping, forging, machining, or casting Tier 1 is dense.
Quick reference
| Item | Standard | Regulator | Code / Threshold |
|---|---|---|---|
| Inventory standard | Ind AS 2 (Inventories) | MCA / ICAI | Effective 1 April 2016 |
| Underlying global standard | IAS 2 | IASB | Aligned text |
| Measurement basis | Lower of cost and net realisable value | ICAI | Para 9 |
| Cost formula permitted | FIFO or Weighted Average | ICAI | Para 25 |
| Cost formula prohibited | LIFO | ICAI | Para 25 |
| Fixed overhead absorption | Normal capacity basis | ICAI | Para 13 |
| Abnormal waste | Expensed not capitalised | ICAI | Para 16(a) |
| Schedule III disclosure | Division II, Part I | MCA | Note on inventory |
| Tax overlay TDS | Section 393(1)(a) code 1002 on job-work paid out | CBDT | 1% individual, 2% firm |
What goes into inventory cost under Ind AS 2?
Paragraph 10 splits the cost into three buckets:
Costs of purchase. The landed cost of direct material. For auto-component manufacturing this is LME-linked aluminium, copper, zinc; JPC-linked steel grades (CR, HR, GP, GA, EDD, HSS); polymer granules indexed to crude derivatives; and specialty alloys. The cost layer is the purchase price net of trade discounts and rebates plus freight inward plus customs duty (basic plus social welfare surcharge) plus port handling plus inland freight to the supplier gate. GST input tax credit is excluded — the cost layer is net of GST where ITC is recoverable. Anti-dumping and safeguard duties are capitalised.
Costs of conversion. Direct labour wages of the production operators (press operators, forging operators, furnace operators, machine operators, assembly line operators). Variable production overhead — power consumption per unit, consumable tooling per unit (drills, inserts, dies), maintenance per unit. Fixed production overhead — depreciation of plant and machinery, plant rent, plant insurance, plant supervision salary — allocated on normal-capacity basis.
Other costs. Only where directly attributable to bringing inventory to its present location and condition. Borrowing costs are capitalised only for qualifying assets under Ind AS 23 — most auto-component WIP does not qualify.
What is excluded under paragraph 16?
Four categories are explicitly excluded:
- Abnormal amounts of wasted material, labour, and other production costs above engineered standard yield.
- Storage costs unless those costs are necessary in the production process before a further production stage (e.g., ageing of castings).
- Administrative overhead that does not contribute to bringing inventories to their present location and condition.
- Selling costs.
The exclusion list is what drives the operational tax-and-finance interaction at an auto-component Tier 1 — every rupee misclassified between capitalised production overhead and excluded administrative overhead changes both the closing inventory value and the P&L cost.
How does fixed production overhead absorption work in practice?
Paragraph 13 of Ind AS 2 contains the single most operationally consequential rule in the standard. Fixed production overhead is allocated to the cost of conversion based on the normal capacity of the production facilities. Normal capacity is the production expected to be achieved on average over a number of periods under normal circumstances, accounting for planned maintenance.
If actual production falls below normal capacity, the per-unit fixed overhead is not increased to absorb the full amount. The unabsorbed portion is expensed in the period — the closing inventory value reflects only the normal-capacity per-unit cost, not an inflated per-unit cost because output was low. If actual production exceeds normal capacity, the per-unit allocation is reduced so that inventory is not measured above cost.
Worked example. A casting Tier 1 sets normal capacity at 4,200 tonnes per month based on a five-year average. Fixed production overhead is ₹2.94 crore per month (depreciation + plant salaries + plant insurance). The standard fixed-overhead absorption rate is ₹7,000 per tonne. In May the actual production is 3,276 tonnes. The fixed overhead capitalised into May production is 3,276 × ₹7,000 = ₹2.29 crore. The unabsorbed ₹65 lakh goes straight to the P&L as a period cost. The closing inventory value does not bear this ₹65 lakh.
This rule prevents companies from artificially inflating inventory values during low-utilisation months — a cosmetic profit improvement that Ind AS 2 explicitly closes off.
How is abnormal waste excluded?
The engineering standard yield is the benchmark. For stamping, the standard yield is coil-input weight to finished-part weight, after engineered skeleton scrap is treated as normal. For forging, the standard yield is billet-input weight to finished-forging weight, after engineered flash and trim. For casting, the standard yield is melt-input weight to good-casting weight, after engineered runner / sprue / riser and acceptable rejection rate. For machining, the standard yield is gross stock to finished-part after engineered swarf removal.
A 5% engineered skeleton scrap in stamping is normal — capitalised into the cost of the finished parts. A press operator running with a worn die that increases skeleton scrap to 8% produces 3% abnormal waste — expensed not capitalised. Similarly, a furnace operating with a charging error that increases melt loss by 2% above standard yield produces abnormal waste expensed in the period.
The standard yield is documented as an accounting policy, reviewed annually based on engineering studies, and applied consistently. The variance from standard yield is the abnormal-waste P&L charge.
Three-Way Match Exception Cost Calculator
Quantify the cost leakage from unreconciled inbound material and inventory exceptions — the upstream data feed for Ind AS 2 cost-layer accuracy.
Open the Three-Way Match Exception Cost Calculator →How is the lower-of-cost-or-NRV test applied?
Paragraph 9 requires inventory to be measured at the lower of cost and net realisable value. NRV is the estimated selling price in the ordinary course of business less the estimated costs of completion and estimated costs necessary to make the sale.
For an active SKU with a programme still in production, NRV is the SA-base selling price minus the residual conversion cost minus the cost to deliver. Most active SKUs have NRV comfortably above cost — the test is passed and the inventory carries at cost.
For a slow-moving SKU where the vehicle programme is approaching end-of-life, NRV testing requires the supplier to estimate the residual demand from spares and aftermarket. Stock above the residual-demand estimate is written down to scrap NRV — typically a few rupees per kilogram for ferrous parts, more for aluminium and copper.
The slow-moving provision matrix at a typical Tier 1:
| Ageing bucket | Provision rate | Trigger |
|---|---|---|
| 0 to 6 months no movement | 0% | Normal stock |
| 6 to 12 months no movement | 10% | Watch list |
| 12 to 18 months no movement | 25% | Slow-moving |
| 18 to 24 months no movement | 50% | Very slow |
| 24+ months or programme discontinued | 100% | Obsolete |
The matrix is documented as accounting policy and applied consistently across all SKUs.
Worked example: a Kolhapur casting Tier 1
A ₹180 crore casting Tier 1 supplying Mahindra & Mahindra and Tata Motors closes May 2026 books. The inventory snapshot:
| Layer | Value |
|---|---|
| Direct material (aluminium ingot landed cost) | ₹14.8 crore |
| Direct material (ferrous scrap and additives) | ₹3.6 crore |
| Direct labour capitalised | ₹4.2 crore |
| Variable production overhead capitalised | ₹2.8 crore |
| Fixed production overhead (normal capacity basis) | ₹2.29 crore (out of ₹2.94 crore total — ₹65 lakh expensed) |
| Sub-total cost-layered inventory | ₹27.69 crore |
| WIP physical adjustment | ₹+0.18 crore (against quarterly physical count) |
| Pre-NRV inventory | ₹27.87 crore |
| Abnormal-waste expensed in May | ₹42 lakh (cast loss above 4.5% standard yield) |
| Slow-moving provision build (12-month bucket) | ₹1.12 crore at 25% |
| Slow-moving provision build (18-month bucket) | ₹46 lakh at 50% |
| Obsolete provision build (programme discontinued) | ₹38 lakh at 100% |
| NRV write-down for 2 SKUs near programme end | ₹24 lakh |
| Net closing inventory value | ₹25.67 crore |
The Schedule III Division II disclosure note shows the cost-layer breakdown, the slow-moving and obsolete provision movement, the NRV write-down, and the abnormal-waste P&L charge. The statutory auditor’s substantive procedures cover cost-layer testing on a sample, NRV testing on slow-moving SKUs, normal-capacity baseline review, and abnormal-waste benchmarking against engineering standard yield.
Tax overlay
Inventory valuation under Ind AS 2 governs the financial statements. The tax overlay touches two points:
Section 145A of the Income Tax Act 2025 — the inventory valuation for tax purposes must include the GST element where ITC is recoverable, but in practice the inclusive-exclusive method produces a nil net impact when applied consistently. The supplier maintains an Ind AS 2 layer net of GST ITC and a Section 145A reconciliation for tax.
Section 393(1)(a) code 1002 — TDS on job-work charges paid to heat-treatment, plating, machining, or assembly vendors who hold a portion of WIP at their premises. The TDS is on the service charge, not on the WIP value, but the WIP held at a job-worker’s premises must still be reconciled against ITC-04 challan-out and challan-in balances on the one-year return window under Section 143 of the CGST Act.
Section 394 code 1071 — TCS on scrap sales at 1% from 1 April 2026. The abnormal-waste scrap sold to dealers attracts code 1071 on the gross sale value before GST.
The ICAI Ind AS 2 educational material covers the financial reporting layer. The CBDT codes are on the income tax portal.