Impairment
How Impairment Testing Works
Under GAAP (ASC 350 and ASC 360), impairment testing follows different rules depending on the asset type. For goodwill, companies must test at least annually (or whenever a triggering event occurs). For long-lived tangible and finite-life intangible assets, testing is required only when triggering events suggest the carrying value may not be recoverable.
Common triggering events include a significant decline in the asset’s market price, adverse changes in the business climate, operating losses, or a decision to dispose of the asset. Once triggered, the test compares the asset’s carrying value to its fair value — if carrying value exceeds fair value, an impairment charge is recorded for the difference.
Types of Impairment
| Asset Type | Testing Standard | Key Details |
|---|---|---|
| Goodwill | ASC 350 (GAAP) / IAS 36 (IFRS) | Annual test; one-step: compare carrying value of reporting unit to fair value. Write down goodwill by the excess amount. |
| Finite-Life Intangibles | ASC 360 (GAAP) / IAS 36 (IFRS) | Triggered by events; two-step under GAAP (recoverability test, then fair value measurement) |
| PP&E (Tangible Assets) | ASC 360 / IAS 36 | Same framework as finite-life intangibles; compare undiscounted cash flows to carrying value first |
| Investments | ASC 321 / ASC 326 | Equity investments and debt securities may be impaired if decline is other-than-temporary |
| Deferred Tax Assets | ASC 740 | Valuation allowance recorded if it’s more likely than not the DTA won’t be realized |
Goodwill Impairment: The Big One
Goodwill impairment charges are the most watched because they’re often the largest. When a company writes down goodwill, it’s essentially admitting that an acquisition didn’t create the value that was expected. Major goodwill write-downs frequently follow overpayment for acquisitions, deteriorating market conditions, or strategic missteps.
Under current GAAP (post-2017 simplification), goodwill impairment is a one-step test: if the reporting unit’s carrying value exceeds its fair value, write down goodwill by the difference (but not below zero). The charge is non-cash but permanent — once goodwill is impaired under GAAP, it cannot be reversed.
GAAP vs. IFRS Impairment Rules
| Feature | GAAP | IFRS |
|---|---|---|
| Goodwill Testing Level | Reporting unit | Cash-generating unit (CGU) or group of CGUs |
| Long-Lived Asset Test | Two-step: undiscounted cash flows first, then fair value | One-step: compare carrying value to recoverable amount |
| Reversal of Impairment | Never for goodwill; generally not for other assets | Never for goodwill; allowed for other assets if value recovers |
| Recoverable Amount | Fair value less costs to sell | Higher of fair value less costs to sell and value in use |
What Impairment Signals to the Market
An impairment charge is backward-looking — the market has usually already priced in the decline by the time the company takes the charge. But impairment still matters: it confirms management’s acknowledgment that value has been destroyed, it reduces book value and affects leverage ratios, and for goodwill-heavy companies, it may trigger covenant violations if ratios are book-value-based.
Key Takeaways
- Impairment is a write-down of an asset when its carrying value exceeds its recoverable amount or fair value.
- Goodwill impairment is the most significant type and signals that an acquisition destroyed value.
- Under GAAP, goodwill impairment is irreversible; under IFRS, non-goodwill impairments can be reversed.
- While impairment charges are non-cash, they reduce book value and can impact covenant compliance.
- Analysts should track impairment patterns — repeated write-downs reveal poor capital allocation discipline.
Frequently Asked Questions
What is impairment in simple terms?
It’s when a company admits that something on its balance sheet is worth less than what the books say. The company writes the asset down to its actual value and takes a loss on the income statement.
Is impairment the same as depreciation?
No. Depreciation is a scheduled, systematic allocation of an asset’s cost over its useful life. Impairment is an unscheduled write-down triggered by a decline in the asset’s value below its carrying amount. Depreciation happens every period; impairment happens only when value drops unexpectedly.
Why is goodwill impairment irreversible under GAAP?
GAAP takes a conservative stance: once goodwill is determined to be impaired, the write-down is permanent. This prevents companies from opportunistically reversing impairments in good years to inflate earnings. IFRS follows the same rule for goodwill, though it allows reversal for other asset types.
Does an impairment charge affect cash flow?
Not directly — impairment is a non-cash charge. It reduces net income but is added back on the cash flow statement in operating activities. However, the underlying economic deterioration that caused the impairment often does affect future cash flows.
How do investors react to impairment announcements?
Often muted, because the market has typically already priced in the decline. However, larger-than-expected write-downs or first-time impairments at companies perceived as strong can trigger selloffs — especially when the charge raises questions about management’s acquisition discipline or future earnings power.