Impairment
Impairment is an accounting charge recorded when the carrying value of an asset on a company's balance sheet exceeds the asset's recoverable or fair value, requiring a write-down to reflect the economic decline.
Impairment charges represent one of the most significant and often surprising items that can affect a company's GAAP earnings. When a company acquires another business or invests in long-lived assets and the underlying economics deteriorate — due to competitive pressures, technological obsolescence, macroeconomic conditions, or strategic missteps — the carrying value of those assets on the balance sheet may no longer accurately reflect their worth. GAAP requires companies to perform regular impairment tests and, when the carrying value exceeds the recoverable amount, recognize a write-down that flows through the income statement.
Goodwill impairment is the most prominent form. When a company pays a premium to acquire another business, the excess of the purchase price over the fair value of identifiable net assets is recorded as goodwill on the balance sheet. Under GAAP (ASC 350), goodwill is not amortized but is instead tested for impairment annually, or more frequently if triggering events suggest the goodwill may be impaired. A triggering event might include a significant stock price decline, loss of a major customer, or a deterioration in industry conditions. If the test determines that the fair value of the reporting unit to which the goodwill belongs has fallen below its carrying value, the goodwill must be written down to fair value, creating an impairment charge.
Long-lived tangible and intangible assets are tested under a different GAAP standard (ASC 360). The test is triggered when events or changes in circumstances indicate the carrying amount of an asset group may not be recoverable. The initial test compares the undiscounted future cash flows expected from the asset to its carrying value. If the carrying value exceeds the undiscounted cash flows, the asset is impaired and written down to its fair value.
Impairment charges are non-cash — they reduce book value and reported earnings but do not involve any outflow of cash. As a result, they are typically added back to reconcile from GAAP net income to operating cash flow on the statement of cash flows. However, a large impairment charge is an important qualitative signal: it indicates that management's earlier assessment of an asset's value was wrong, whether due to overpaying for an acquisition, misjudging a market, or failing to execute on an integration.
The SEC pays close attention to how public companies determine and disclose impairment. Auditors at Big Four firms must evaluate management's impairment analysis as part of their audit procedures, and the PCAOB has identified goodwill impairment testing as an area warranting particular audit scrutiny.