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Critical Spare Parts under Ind AS 16

Critical Spare Parts under Ind AS 16: Classify Standby Equipment and Start Depreciation on Readiness

Distinguish PPE spares from inventory, prove when standby equipment is ready for intended use, and reconcile replacements without double counting.

Reviewed by CA Raghav Agarwal · Chartered Accountant | 10+ years in Ind AS Financial Reporting

Financial analysis charts with accountant desk tools

Classify by intended use rather than storeroom location

Ind AS 16 paragraph 8 treats spare parts, standby equipment and servicing equipment as PPE when they meet the definition; otherwise they are inventory. Apply paragraphs 6–7 to the asset’s expected use during more than one period, probable future benefits and reliable cost. A critical standby unit may provide service through readiness; a high-value consumable is not automatically PPE. Record the unit of account and why the same label is treated differently across items.

Read the applicable text: MCA: Ind AS 16, paragraphs 6–8, 12–13, 43, 50–56 and 67–70 MCA: Ind AS 2, inventory measurement and expense recognition.

Determine when the spare can perform its intended function

Paragraph 55 starts depreciation when the asset is available for use in the location and condition necessary for intended operation. For standby equipment that may be when it is prepared and ready to provide standby service, before its first actual deployment. A spare that still needs substantive preparation may not yet be available. Evidence may include configuration, testing, acceptance, preservation and the intended operating plan. Depreciation generally continues while a ready asset is idle unless it is fully depreciated; a usage-based charge can be zero when there is no production. Paragraph 55 ends depreciation at the earlier of classification as held for sale under Ind AS 105 and derecognition.

Follow the cost through inventory or PPE

Measure inventory at the lower of cost and net realisable value under Ind AS 2. Trace issues to routine servicing expense or, where the applicable recognition criteria are met, the cost of another asset under paragraph 35. For PPE separately determine cost, significant components, useful life and residual value. When replacing a part, recognise the qualifying replacement under paragraph 13 and derecognise the replaced part’s carrying amount under paragraphs 67 and 70. If it is impracticable to determine the replaced part’s carrying amount, paragraph 70 permits using the replacement cost as an indication of what the old part cost when it was acquired or constructed. Estimate the old part’s carrying amount from that historical-cost indication and related depreciation or impairment; do not write off the full new part cost.

Reconcile the stores and fixed asset records

Keep one item ID across procurement, stores and fixed assets. Reconcile transfers so a PPE spare is not included in both registers as an asset amount. Use evidence of availability, review useful life and residual value at least at each financial year-end, assess impairment where applicable, and distinguish financial reporting from income-tax depreciation. The examples assume simple straight-line monthly depreciation with the stated full-month dates; apply the entity’s supported actual policy.

Six worked illustrations

All facts and amounts are fictional. Calculations illustrate the stated assumptions, not a predetermined legal outcome.

Illustrative example 1: Ready standby unit

A ₹12 lakh standby unit with zero residual and five years’ life is ready on 1 October. Six months to 31 March produce ₹1.20 lakh depreciation, even though the first emergency use is later.

Illustrative example 2: Preparation not yet complete

A ₹9 lakh unit with zero residual and five years’ life arrives in December but is first ready on 1 March. One month of depreciation is ₹15,000.

Illustrative example 3: Consumable inventory

A store holds 120 identical consumables costing ₹500 each, classified as inventory. It issues 45 at that cost to routine repairs. ₹22,500 is expensed and ₹37,500 remains before NRV review.

Illustrative example 4: Separate purchase lines

An invoice is ₹11 lakh: ₹8 lakh for qualifying standby equipment and ₹3 lakh for consumables. Record those amounts separately; do not place all ₹11 lakh in both registers.

Illustrative example 5: Component replacement

A new qualifying component costs ₹4.50 lakh. The old component cost ₹3.20 lakh and has ₹2.75 lakh accumulated depreciation. Derecognise ₹45,000 of carrying amount. Assuming no disposal proceeds or costs, recognise a ₹45,000 derecognition loss in profit or loss; net PPE increases by ₹4.05 lakh before depreciation or any other entry.

Illustrative example 6: Depreciable amount with residual value

A ready spare costs ₹7.20 lakh with supported residual value of ₹1.20 lakh and four-year life. Depreciable amount is ₹6 lakh and annual straight-line depreciation is ₹1.50 lakh. Three full months give ₹37,500.

Ten-step verification table

StepActionEvidence
1List and uniquely identify material stores itemsItem master and procurement evidence
2Confirm the intended operating or consumption patternEngineering plan and expected usage
3Apply the definition and recognition criteriaPPE or inventory classification memorandum
4Identify significant components separatelyEngineering and cost breakdown
5Verify readiness for intended useTests, condition and acceptance evidence
6Set useful life, residual value and methodSupported depreciation policy
7Reconcile purchases and store-to-PPE movementsStores and fixed asset register bridge
8Trace inventory issues to their actual destinationIssue notes and repair or capital job records
9Remove the old component when replacedReplacement evidence and derecognition working
10Review impairment or NRV as applicablePeriod-end review and financial statement tie-out

Sixteen practitioner FAQs

1. Are all spare parts inventory?

No. Items that meet the PPE definition and recognition requirements are PPE.

2. Does a high price establish PPE treatment?

No. Consider intended use, expected periods and recognition criteria.

3. Can a ready standby part depreciate before installation in the primary machine?

Yes if it is already in the necessary location and condition for the intended standby function.

4. Does goods receipt always start depreciation?

No. Establish availability for intended use.

5. Does a later emergency deployment determine the start date?

Not if the asset was already ready for its intended function.

6. What if the part needs major work before it can serve?

Identify the readiness date supported by completion and condition evidence.

7. Do idle months automatically suspend depreciation?

Generally no. Review the standard’s usage-based method qualification where applicable.

8. Can PPE be shown in the stock ledger for physical custody?

Yes as a custody control, provided the financial amount is not counted twice.

9. Should a repaired component always be capitalised?

Assess the nature of the work and applicable recognition criteria.

10. What if the old component was never tracked on its own?

Estimate a supported carrying amount, using paragraph 70’s replacement cost proxy for the historical cost when direct determination is impracticable.

11. Does an issue of inventory always go to repairs expense?

Trace the actual destination and determine the applicable accounting.

12. Can all spares have the host equipment’s exact life?

Support useful life on the facts and consider how the spare will provide benefits.

13. Do stores balances need an NRV review?

Apply Ind AS 2 to inventory; assess applicable impairment requirements for PPE separately.

14. Should the tax depreciation block drive the financial statement classification?

No. Maintain separate accounting and tax analyses.

15. What if one invoice covers equipment and consumables?

Split it on reliable cost evidence and apply the relevant accounting to each component.

16. What should the auditor be able to reproduce?

The item classification, readiness date, carrying amount and any replacement or inventory issue from source records.

Official sources

MCA: Ind AS 16, paragraphs 6–8, 12–13, 43, 50–56 and 67–70 MCA: Ind AS 2, inventory measurement and expense recognition