8.4 Impairment of long-lived assets

Long-lived assets can lose value beyond what normal depreciation captures. When that happens, companies must assess and record impairment losses to ensure the balance sheet reflects what those assets are actually worth. This topic covers how to identify, measure, recognize, and report impairment under both U.S. GAAP (ASC 360) and IFRS (IAS 36), plus the special rules for goodwill and indefinite-lived intangibles.

Impairment of Long-Lived Assets

An asset is impaired when its carrying amount (book value) exceeds the future economic benefit the company can recover from it. The core idea: you can't keep an asset on the books at a value higher than what you'll get out of it.

• Under U.S. GAAP, impairment testing for long-lived assets held for use is a two-step process (recoverability test, then fair value measurement).
• Under IFRS, there's a single-step comparison of carrying amount to recoverable amount (the higher of fair value less costs of disposal and value in use).

Impairment testing isn't done on a fixed schedule for most long-lived assets. Instead, you test when triggering events suggest the carrying amount may not be recoverable.

Identifying Impaired Assets

Indicators of Impairment

You need to watch for events or changes in circumstances that signal a potential problem. Common triggers include:

• A significant decline in the asset's market value
• Adverse changes in the business climate, legal environment, or technology affecting the asset
• Costs to acquire or construct the asset that significantly exceed the original budget
• Current-period operating or cash flow losses associated with the asset, especially combined with a history or forecast of continuing losses
• A plan to dispose of the asset significantly before the end of its estimated useful life
• A significant adverse change in the extent or manner in which the asset is used (e.g., a factory running at half capacity)

Not every dip in performance triggers a test. The standard asks whether these indicators, taken together, make it more likely than not that the carrying amount isn't recoverable.

Grouping Assets for Impairment Testing

Most individual assets don't generate cash flows on their own. A single machine in a factory, for example, only produces cash as part of the whole production line. Because of this, assets are grouped at the lowest level for which identifiable cash flows are largely independent of other asset groups.

• Under U.S. GAAP, this grouping is called an asset group.
• Under IFRS, it's called a cash-generating unit (CGU).

The grouping matters because it determines the level at which you perform the recoverability test and allocate any impairment loss.

Measuring Impairment Loss

The U.S. GAAP Two-Step Approach (ASC 360)

Step 1: Recoverability Test

Compare the asset's (or asset group's) carrying amount to the undiscounted sum of expected future cash flows from using and eventually disposing of the asset.

• If undiscounted future cash flows ≥ carrying amount → the asset is not impaired. Stop here.
• If undiscounted future cash flows < carrying amount → the asset fails the recoverability test. Proceed to Step 2.

This first step is a screening filter. Because the cash flows are undiscounted, an asset can pass this test even if its fair value is below its carrying amount. That's by design: U.S. GAAP sets a relatively high bar before requiring a write-down.

Step 2: Measure the Impairment Loss

Once an asset fails Step 1, calculate the loss:

$\text{Impairment Loss} = \text{Carrying Amount} - \text{Fair Value}$

The asset's carrying amount is then written down to fair value.

The IFRS Single-Step Approach (IAS 36)

IFRS skips the undiscounted cash flow screen. Instead, you compare the carrying amount directly to the recoverable amount:

$\text{Recoverable Amount} = \max(\text{Fair Value Less Costs of Disposal},\ \text{Value in Use})$

Value in use is the present value of expected future cash flows from the asset, discounted at a pre-tax rate reflecting current market assessments of the time value of money and asset-specific risks.

$\text{Impairment Loss} = \text{Carrying Amount} - \text{Recoverable Amount}$

If the recoverable amount exceeds the carrying amount, no impairment exists.

Determining Fair Value

Fair value is the price that would be received to sell an asset in an orderly transaction between market participants at the measurement date (ASC 820 / IFRS 13). Three common valuation techniques:

• Market approach: Uses prices and other relevant information from actual market transactions involving identical or comparable assets.
• Income approach: Converts expected future cash flows into a single discounted present value.
• Cost approach: Estimates the current replacement cost of the asset, adjusted for obsolescence.

A fair value hierarchy prioritizes observable market data (Level 1) over unobservable inputs (Level 3).

Recognizing Impairment Loss

Adjusting the Carrying Amount

When you recognize an impairment loss:

1. Reduce the asset's carrying amount to its fair value (U.S. GAAP) or recoverable amount (IFRS).
2. Record the impairment loss as an expense on the income statement.
3. The new, reduced carrying amount becomes the asset's revised cost basis.
4. Going forward, depreciate the revised carrying amount over the asset's remaining useful life. The depreciation method and residual value should also be reassessed.

The journal entry is straightforward:

• Debit: Impairment Loss (income statement)
• Credit: Accumulated Impairment Losses or the asset account directly (balance sheet)

Allocating Loss to Asset Groups

When an asset group (or CGU) is impaired, you need to allocate the total loss to the individual assets within the group:

1. Allocate based on the relative carrying amounts of the assets in the group.
2. However, do not reduce any individual asset below its fair value (if determinable), its value in use, or zero.
3. Under U.S. GAAP, if goodwill is part of the asset group, the impairment loss is allocated to goodwill first before being allocated to other long-lived assets on a pro-rata basis.

Presentation and Disclosure

Income Statement Presentation

• Impairment losses are typically presented as a separate line item within operating expenses (often labeled "Impairment of long-lived assets").
• If the impairment is significant or unusual, additional disclosure in the notes is expected.

Required Disclosures for Impaired Assets

• A description of the impaired asset and the facts and circumstances leading to the impairment
• The amount of the impairment loss and the method(s) used to determine fair value
• Where in the income statement the impairment loss is reported
• The reportable segment in which the impaired asset is reported (if applicable)

Reversing Impairment Losses

This is one of the biggest differences between U.S. GAAP and IFRS.

IFRS Reversal Rules

• The increased carrying amount after reversal cannot exceed the carrying amount that would have been determined (net of depreciation) had no impairment loss ever been recognized.
• The reversal is recognized as income in the income statement.
• Depreciation is adjusted prospectively based on the revised carrying amount and remaining useful life.

Impairment of Goodwill

Goodwill gets its own set of rules because it can't be separated from the business and sold independently.

Goodwill Impairment Testing

• Goodwill must be tested for impairment at least annually, plus whenever triggering events occur. This is different from other long-lived assets, which are tested only when triggers arise.
• Under U.S. GAAP (ASC 350), you compare the fair value of the reporting unit to its carrying amount (including goodwill). If fair value < carrying amount, the excess is the goodwill impairment loss, but the loss cannot exceed the total goodwill allocated to that reporting unit.
• Under IFRS (IAS 36), goodwill is allocated to CGUs and tested as part of the CGU impairment test. The impairment loss is allocated first to goodwill, then pro-rata to other assets in the CGU.

U.S. GAAP also allows a qualitative assessment (sometimes called "Step 0") where you evaluate whether it's more likely than not that the reporting unit's fair value is less than its carrying amount. If you conclude it's not, you can skip the quantitative test.

Allocating Goodwill to Reporting Units

• Goodwill is assigned to the reporting units expected to benefit from the synergies of the business combination.
• Allocation is typically based on the relative fair values of the reporting units at the acquisition date.
• Goodwill impairment losses are never reversed under either U.S. GAAP or IFRS.

Impairment of Indefinite-Lived Intangibles

Identifying Indefinite-Lived Intangibles

Certain intangible assets (e.g., some trademarks, broadcast licenses, perpetual franchise rights) have no foreseeable limit on the period over which they'll generate cash flows. These assets are not amortized but must be tested for impairment annually, plus whenever triggering events occur.

Testing for Impairment

The test is simpler than for goodwill:

1. Compare the fair value of the intangible asset to its carrying amount.
2. If fair value < carrying amount, recognize an impairment loss equal to the difference.
3. The new carrying amount becomes the revised accounting basis.

U.S. GAAP also permits a qualitative assessment first: if you determine it's more likely than not that fair value exceeds carrying amount, you can skip the quantitative test.

Impairment vs. Depreciation

These are fundamentally different concepts, and exam questions often test whether you can distinguish them.

One correction worth noting: neither depreciation nor impairment directly affects cash flows. Both are non-cash charges. Impairment losses signal that future cash flows from the asset are expected to be lower, but the impairment entry itself doesn't involve cash.

Tax Considerations

Deductibility of Impairment Losses

• Tax treatment varies by jurisdiction. In many cases, book impairment losses are not immediately deductible for tax purposes. The tax deduction often comes later, when the asset is sold or abandoned.
• When an impairment loss is not tax-deductible, it creates a temporary difference between book and tax carrying amounts (not a permanent difference, assuming the asset will eventually be disposed of).

Deferred Tax Assets and Liabilities

• If you write down an asset for book purposes but the tax basis remains at the original amount, the book carrying amount is now lower than the tax basis. This creates a deductible temporary difference and a corresponding deferred tax asset.
• The deferred tax asset is recognized to the extent it's more likely than not that sufficient future taxable income will be available to realize the benefit.
• As the asset is depreciated or disposed of for tax purposes, the temporary difference reverses.

Real-World Examples

Common Scenarios

• Energy companies frequently record impairment losses on oil and gas properties when commodity prices drop sharply (e.g., the wave of impairments across the oil industry during the 2020 price collapse).
• Retailers may impair store-level assets when a location consistently underperforms or is slated for closure. The asset group would typically be the individual store.
• Technology companies may impair acquired intangible assets (patents, developed technology) when a product line becomes obsolete faster than expected.

What Analysts Look For

• Large or recurring impairment losses can signal deterioration in asset quality and future earnings potential.
• Comparing a company's impairment charges to industry peers helps assess whether management is being realistic about asset values or delaying inevitable write-downs.
• The timing of impairment recognition matters: companies sometimes cluster impairments during already-bad quarters (a practice sometimes called "big bath" accounting), which can inflate future-period earnings.