IAS 36 Vol.2: Elegant in Theory, Brutal in Practice — Measurement, CGUs & Ghost Ledgers

In Vol.1, we explored the history and the triggers of impairment. Once a trigger is pulled, we enter the Measurement phase—the most contentious part of IAS 36, where mathematical rigor meets managerial judgement and auditor scrutiny.

Step 1: Identifying the CGU (The Strategic Foundation)

The first operational step is defining the Cash-Generating Unit (CGU). This is not merely a technical task; it is a strategic decision that dictates the sensitivity of your financial statements.

• Definition (IAS 36.6): The smallest identifiable group of assets that generates cash inflows that are largely independent of the cash inflows from other assets or groups of assets.

• The Practitioners' Strategy: The level at which you define a CGU directly impacts the likelihood of an impairment loss.

Step 2: Defining "Recoverable Amount"

Under IAS 36.18, the Recoverable Amount is the core output of your measurement process. It is defined as the higher of:

1. FVLCD (Fair Value Less Costs of Disposal): The "Exit" price—what you could get by selling the asset today.

2. VIU (Value in Use): The "Continuity" price—what the asset is worth if you keep using it.

Logic: As rational economic actors, management is expected to choose the path that maximises value. Therefore, the standard adopts the higher of the two.

Step 3: Deconstructing VIU (Value in Use)

VIU is the present value of the future cash flows expected to be derived from an asset or CGU.

The Mechanics of Terminal Value (TV)

Since it is impractical to forecast cash flows for an infinite period, we use the Gordon Growth Model to capture the value beyond the explicit forecast period (often 3–5 years).

In most impairment tests, the Terminal Value accounts for 60% to 80% of the total VIU. Therefore, the interplay between WACC and g is the most critical driver of the valuation.

VIU Operational Matrix: Definitions, Sourcing, and Key Considerations

To ensure a "bulletproof" audit trail, practitioners must define the source and governance of each input.

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Step 4: The Recognition Waterfall (Allocation)

When a CGU's Carrying Amount exceeds its Recoverable Amount, the loss is allocated in a strict priority:

1. Goodwill: Reduced to zero first. It acts as the primary shock absorber.

2. Other Assets: Remaining loss is allocated to assets within the CGU on a pro-rata basis.

Numerical Example:

Assume a CGU has a total Carrying Amount of £2,000 and the Recoverable Amount is £1,500 (Loss = £500).

⚠️ The Critical Constraint (The Floor)

Under IAS 36.105, the carrying amount of an individual asset cannot be reduced below the highest of:

• Its FVLCD (if determinable);

• Its VIU (if determinable); or

• Zero.

Practical Implication: If an asset’s value is already known (e.g., a piece of equipment with a clear market resale value), you cannot force further impairment onto it just because the CGU as a whole is struggling. Any "excess" impairment that cannot be allocated to an asset due to this floor must be redistributed pro-rata among the other assets in the unit.

Step 5: The Reversal Paradox

IFRS allows for the reversal of impairment losses (except for Goodwill) if there has been a change in the estimates used to determine the recoverable amount.

The conceptual rootedness of impairment reversals lies in the theoretical symmetry with the IFRS revaluation model (IAS 16). For assets carried at fair value, it is consistent to allow the recovery of previously recorded losses as economic conditions improve. This marks a fundamental divergence from the "New Cost Basis" approach of US GAAP (ASC 360), where impairment creates a permanent new cost, and reversals are strictly prohibited. In contrast, IAS 36 views impairment as a temporary valuation adjustment that can be reversed, but only within the strict constraint of The Ceiling Rule (IAS 36.117). A reversal cannot increase an asset’s carrying amount above what it would have been (net of depreciation) had no impairment loss been recognized in prior years.

Conclusion: Theoretical Elegance vs. Operational UX

IFRS is a framework of logical beauty, but its pursuit of "Fair Presentation" often disregards Operational UX. The requirement for Ghost Ledgers is a prime example of theoretical purity over practical sanity.

However, in the AI era, we no longer need to be victims of this complexity. By insourcing the logic and using technology to manage these "Ghost Ledgers," we can turn a compliance burden into a strategic asset.

Accounting should be a clear lens for future strategy, not a museum for historical data.　Technology will not simplify the standard. But it can simplify the burden of living with it.

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Sample Practice Questions

Question 1: Determining the Recoverable Amount

An asset has a Fair Value Less Costs of Disposal (FVLCD) of £800 and a Value in Use (VIU) of £850. According to IAS 36, what is the Recoverable Amount that should be used for the impairment test?

• A) £800

• B) £850

• C) £1,650

• D) £50

Answer: B) £850

Explanation: Under IAS 36.18, the Recoverable Amount is defined as the higher of an asset’s Fair Value Less Costs of Disposal (FVLCD) and its Value in Use (VIU). Since £850 is greater than £800, it becomes the basis for the impairment test.

Question 2: Allocation Logic & The Floor Rule

A Cash-Generating Unit (CGU) has a Carrying Amount (CA) of £2,000 and a Recoverable Amount (RA) of £1,500, resulting in a Total Impairment Loss of £500. The CGU consists of the following:

• Goodwill: £200

• Equipment: £1,200 (Independent valuation confirms its individual Recoverable Amount is £1,200)

• Intangible Assets: £600

What is the final amount of impairment loss allocated to the Intangible Assets?

• A) £100

• B) £200

• C) £300

• D) £500

Answer: C) £300

Explanation: The allocation follows a strict hierarchy:

1. Goodwill absorbs £200 of the loss first, reducing its carrying amount to zero.

2. The remaining £300 loss is then allocated pro-rata between Equipment and Intangibles.

3. However, under the "Floor Rule" (IAS 36.105), you cannot reduce an asset below its individual Recoverable Amount. Since the Equipment's Recoverable Amount is £1,200 (equal to its current NBV), no loss can be allocated to it.

4. Consequently, the entire remaining £300 must be allocated to the Intangible Assets.

Question 3: Reversal Constraints

Under IAS 36, for which of the following assets is the reversal of a previously recognised impairment loss strictly prohibited?

• A) Property, Plant and Equipment (PPE)

• B) Intangible assets with finite useful lives

• C) Goodwill

• D) Investment property measured at cost

Answer: C) Goodwill

Explanation: While IAS 36 allows for the reversal of impairment losses for most assets if economic conditions improve, IAS 36.124 explicitly states that an impairment loss recognised for Goodwill shall not be reversed in a subsequent period. This is a fundamental divergence from other asset classes.

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 Disclaimer

This article is provided for general informational purposes only and does not constitute legal, accounting, or professional advice for any specific transaction or circumstance.

The interpretation and application of IFRS can vary significantly based on specific facts and contexts. Always refer to the latest accounting standards and consult with your auditors or qualified professionals for actual practice. Neither the author nor IFRS-LABO accepts any liability for losses incurred based on the information provided herein.