Success in this exam rests on matching each assignment to the right basis of value and defending every deduction with named evidence, not on memorising the three approaches in isolation. For every asset, complete one line first — purpose, basis, premise, approach — and keep cost type, depreciation layers and comparability adjustments internally consistent.
Matching the Basis of Value to the Assignment Purpose
The same machine supports different values depending on the assignment purpose. Fix the purpose first, name the basis of value it implies, and only then select the valuation approach.
Financial reporting, secured lending, insolvency resolution and private transactions do not share one basis of value. A packaging line valued for a going-concern balance sheet reflects an exchange between market participants under normal conditions; the same line offered for sale under compulsion reflects realisable proceeds. Treating these as one number with minor tweaks is the first structural error to eliminate.
Build the habit in practice questions: before computing anything, complete the line 'purpose → basis → premise → approach'. The table below gives a starting map. Notice that the same asset can legitimately sit in different rows, and that the approach emphasis changes with the row, not with personal preference. When a scenario names a context, let the context choose the row for you.
| Assignment purpose | Typical basis of value | Typical premise | Approach emphasis |
|---|---|---|---|
| Financial reporting | Fair value / market-based exit notion | Highest and best use or continued use | Market and income as cross-checks |
| Secured lending | Market value | In-use or as-is exchange | Market, supported by cost |
| Insolvency / liquidation | Realisable value | Orderly or compelled disposition | Market with heavy adjustments, or scrap |
| Transaction support | Fair market value | Willing buyer and seller | All three approaches reconciled |
Reproduction Cost versus Replacement Cost: Picking One and Staying Consistent
Reproduction cost recreates the identical asset, obsolete design included; replacement cost buys a modern equivalent of equal utility. Choose deliberately, because the cost type determines which obsolescence deduction belongs.
A 1990s custom control cabinet may be prohibitively expensive to reproduce because its components are no longer manufactured, while a modern PLC panel delivering the same output costs far less. The gap between the two figures is functional obsolescence made visible. Naming which cost you estimated is therefore not bookkeeping — it changes the entire deduction structure that follows.
The trap to train out is inconsistency. If you estimate replacement cost, you have already assumed modern design, so a further large functional-obsolescence deduction double-counts; if you use reproduction cost, the full functional deduction belongs there. In a worked question, name your cost type explicitly and keep the deduction pattern aligned with it. The arithmetic can look correct while the logic quietly contradicts itself.
Separating Physical Deterioration from Functional and Economic Obsolescence
Physical deterioration, functional obsolescence and economic obsolescence have different causes, evidence and remedies. Attribute every percentage point of total depreciation to one named layer before combining them.
Worked scenario: a well-maintained packaging line, twelve years old, in a plant whose single anchor customer has just closed. A plausible mistake is applying an age-based 40% depreciation and stopping, because the line itself looks sound. The better decision splits the layers: modest physical deterioration from inspection and remaining useful life, minimal functional obsolescence for current technology, and large economic obsolescence evidenced by idle capacity after the customer's exit — because a blended figure hides the real driver of value.
Map each layer to its evidence: physical — inspection findings, maintenance logs, remaining useful life; functional — operating cost and output per hour versus a modern equivalent; economic — capacity utilisation, order books, industry demand and location. In practice questions, write the evidence beside each percentage. If a layer has no evidence behind it, your estimate is an assumption, and your reasoning should label it as one.
Adjusting Used-Equipment Comparables Without One Blanket Discount
A comparable sale becomes evidence only after adjustment for capacity, age, condition, terms and location. Build each adjustment in writing so the whole chain, not just the net result, can be examined.
Worked scenario: valuing a used 500 kg/hour extruder, you find a recent sale of a 1000 kg/hour machine, four years newer, sold installed. The mistake is taking that price with a single arbitrary 20% haircut. The better decision scales for capacity using a cost-capacity relationship — price rises with capacity to an exponent below one, so doubling capacity does not double price — then adjusts separately for age and condition, and finally addresses installation, since the comparable's price included installation the subject will not enjoy.
Why it matters: capacity, age and installed condition push the price in different directions, and one blended discount cannot be verified or defended. Apply the same discipline to any comparables set — same or adjacent industrial use, recent transaction, documented source and date — and state the net adjustment. If the net adjustment grows implausibly large, the correct conclusion is that the comparable is weak, not that a bigger haircut fixes it.
When the Income Approach Earns Its Place for Machinery
The income approach fits machinery whose value is driven by the earnings it generates — rental fleets, tolling lines, profit-centre equipment — and is usually impractical for single support assets with inseparable cash flows.
The method capitalises or discounts the income attributable to the asset itself, which demands cash flows you can genuinely isolate. A standalone compressor serving a larger plant rarely has separable earnings, so cost or market evidence governs there. When the machinery is the profit engine — hired-out construction equipment, or a line producing saleable output — the income indication earns real weight and can discipline the other two approaches.
Keep the income approach consistent with your life estimates. If an income projection assumes fifteen more productive years but inspection and maintenance records suggest five, one of them is wrong and the answers must be reconciled, not averaged. The same remaining useful life that feeds the income model also drives the depreciation deduction in the cost approach, so a single well-evidenced life estimate keeps the whole valuation internally consistent.
Writing a Report a Reviewer Can Retrace
A defensible report lets a reviewer retrace the number: purpose, basis, scope, inspection, methods considered and rejected, each key assumption, and limiting conditions stated plainly.
Structure every section around a reviewer's question: why this basis of value, why this approach is primary, what evidence supports each depreciation layer, and what was inspected versus assumed from documents. Where valuation occurs within insolvency processes, registered valuers operate under IBBI's regulatory framework and its issued guidance, so report structure and process discipline matter alongside the arithmetic. Treat that framework as part of the syllabus, not background.
Two documentation gaps are worth training out now: reporting a single overall depreciation percentage without the layer-by-layer split, and citing comparables without source, date or adjustment notes. In your practice reports, make the split and the citations non-negotiable. A number that cannot be retraced is not a valuation; it is an opinion with arithmetic attached, and scenario-style questions reward the retracing habit.
A Scored Depreciation Drill and an Adaptable Preparation Sequence
Run a weekly three-layer depreciation drill on one machine, score yourself against a fixed rubric, and treat the score as a learning milestone — not a prediction of any exam outcome.
Pick one written or real asset, such as a CNC lathe. Write the purpose–basis–premise line; estimate reproduction and replacement costs and choose one; assign physical, functional and economic percentages, each tied to one evidence item; compute the cost indication. Then sketch a hypothetical comparable sale and build a second indication line by line. Expect your economic-obsolescence evidence to be the weakest link at first, and expect the two indications to diverge enough to force you to name your assumptions.
Score each drill out of ten using the rubric below; a consistent seven or above across three different asset types is a reasonable milestone to shift from drills to full scenarios. A workable sequence: weeks one and two on vocabulary and concepts — bases, premises, approaches; weeks three and four on approach drills like this one; week five on depreciation-layer scenarios; week six on critiquing a sample report against the reviewer's questions.
- Purpose and basis of value stated in one sentence
- Cost type named (reproduction or replacement) and justified
- Each depreciation layer tied to a specific evidence item
- Comparable adjusted line by line, with the net adjustment stated
- Divergent indications reconciled with reasoning, not averaged silently
- Assumptions explicitly labelled as assumptions
References and further reading
Use these references to explore the concepts and check the latest information from the relevant organizations.