AS 10 PPE — Componentisation, Revaluation and the Entries That Follow
If you have ever stared at a balance sheet and wondered why a single machine is split into three separate line items, you have already bumped into componentisation — one of the most practical ideas inside AS 10 Property, Plant and Equipment. Let us unpack this standard in a way that sticks.
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Why AS 10 Matters for CA Inter
AS 10 governs how a company recognises, measures and depreciates tangible fixed assets. The standard replaced the old AS 10 and AS 6 together, bringing Indian GAAP closer to global thinking. For your CA Intermediate exam, the two concepts that fetch the most marks — and cause the most confusion — are componentisation and revaluation. Master these two and the rest of the standard falls into place naturally.
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What Is Componentisation?
Simple idea: if different parts of one asset have different useful lives or different patterns of consumption, account for each part separately.
Think of an aircraft. The airframe might last 20 years, the engines 10 years, and the interior fittings 5 years. If you lump them together and depreciate the whole aircraft at one rate, your depreciation charge is wrong for most of those years.
Componentisation fixes this by saying: treat each significant part as an asset in its own right.
How to Identify a Component
A part qualifies as a separate component when:
- Its cost is significant relative to the total cost of the asset.
- Its useful life or depreciation method differs from the rest of the asset.
There is no magic percentage for 'significant' — you apply professional judgement. A ₹5,000 bolt on a ₹2-crore turbine is not a component; the turbine blades costing ₹40 lakh certainly are.
Logic of a Component Entry
Suppose a company buys industrial equipment for ₹60 lakh. Management identifies three components:
| Component | Cost | Useful Life | |---|---|---| | Structure | ₹30 lakh | 15 years | | Engine unit | ₹20 lakh | 10 years | | Control panel | ₹10 lakh | 5 years |
Initial recognition (combined entry):
Dr Plant & Equipment — Structure 30,00,000 Dr Plant & Equipment — Engine Unit 20,00,000 Dr Plant & Equipment — Control Panel 10,00,000 Cr Bank / Creditor 60,00,000
Each component is then depreciated independently using its own life. When the control panel is replaced after 5 years, the old panel's carrying amount is derecognised and the new panel's cost is capitalised. No more 'repairs expense' confusion.
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Revaluation Under AS 10
AS 10 permits — but does not require — an entity to revalue its PPE. The key principle: revaluation must be applied to the entire class of assets, not cherry-picked item by item.
Two Situations After Revaluation
Situation 1 — Carrying amount increases (upward revaluation)
The surplus goes to a reserve called Revaluation Surplus (shown under Other Equity). It does NOT pass through profit or loss.
Dr Asset Account (increase in carrying amount) Cr Revaluation Surplus
Situation 2 — Carrying amount decreases (downward revaluation)
First check: does a Revaluation Surplus already exist for that asset? If yes, reduce the surplus first. Any remaining decrease hits profit or loss as an impairment or revaluation loss.
Dr Revaluation Surplus (to the extent available) Dr Profit & Loss (remaining deficit) Cr Asset Account
What Happens to Accumulated Depreciation on Revaluation?
AS 10 gives two acceptable treatments — verify in the latest ICAI study material for which your paper may expect:
- Restate proportionately — both gross block and accumulated depreciation are scaled so the net carrying amount equals the revalued figure.
- Eliminate against gross block — accumulated depreciation is set to zero, and the gross block is written up or down to the revalued amount directly.
Depreciation After Revaluation
This is the tricky part students miss. After revaluation, depreciation is charged on the new carrying amount over the remaining useful life. This means the annual depreciation charge increases if the asset was revalued upward.
The extra depreciation (over what historical cost depreciation would have been) can be transferred from Revaluation Surplus to Retained Earnings — but this transfer does not pass through profit or loss. It is a movement within equity.
Dr Revaluation Surplus (incremental depreciation) Cr Retained Earnings
This is why the Revaluation Surplus gradually unwinds over the asset's life — a beautiful self-correcting mechanism.
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Derecognition — Completing the Cycle
When an asset (or component) is sold or scrapped:
- Remove both gross carrying amount and accumulated depreciation.
- Recognise gain or loss in profit or loss (not revaluation surplus).
- Any remaining Revaluation Surplus related to that asset is transferred directly to Retained Earnings.
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Quick Exam Checklist
- [ ] Identify significant parts with different lives → separate components
- [ ] Replacement of a component → derecognise old, capitalise new
- [ ] Revaluation applies to whole class, not single items
- [ ] Surplus → Revaluation Reserve; Deficit → first hit existing surplus, then P&L
- [ ] Post-revaluation depreciation → on revalued amount over remaining life
- [ ] Incremental depreciation transfer is within equity only
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FAQs
Q1. Can a company choose to revalue only one machine out of its entire fleet of machines? No. If a company decides to revalue, it must revalue the entire class to which that machine belongs (e.g., all plant and machinery). Selective revaluation within a class is not permitted under AS 10.
Q2. Is componentisation mandatory for all companies under AS 10? Yes, AS 10 requires componentisation when parts have significantly different useful lives and the cost is significant. It is not optional — auditors will flag non-compliance if major components are merged into a single block arbitrarily.
Q3. Where does the Revaluation Surplus appear on the balance sheet? It appears under Other Equity in the equity section of the balance sheet. It is not distributable as dividend in the normal sense — verify any latest clarifications in the ICAI study material.
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Solid conceptual clarity on AS 10 is built step by step, not crammed the night before. Use the free day-by-day study planner at https://caparveensharma.com/free-planner?src=article to schedule your AS 10 revision in manageable daily slots. And when you want to test your understanding with live case-scenario practice — the kind that mirrors real exam questions — head over to https://caparveensharma.com and explore the Intermediate courses crafted from CA Parveen Sharma's 36 years of teaching wisdom.