Legacy impairment accounting is a specific Institutions coordinate in the Bitcoin knowledge graph. In practical terms, it identifies the subject described here: The former U.S. model that recorded crypto write-downs after price declines but generally not later recoveries before sale. This definition is narrower than promotional usage and should be read together with the implementation, date and evidence attached to the entry.
Legacy impairment accounting is best understood as part of a system rather than as an isolated definition. Its related coordinates show the mechanisms, incentives and historical records that give the term practical meaning.
Legacy impairment accounting belongs to the documented history and social layer around Bitcoin. Primary records can establish what was published, built or decided; motives, influence and later interpretation should remain separate from those verifiable facts.
Understanding Legacy impairment accounting helps distinguish a verifiable Bitcoin mechanism or historical record from slogans, products and market narratives.
Primary or authoritative records make these details checkable: under legacy U.S. GAAP treatment, many corporate crypto holdings were indefinite-lived intangible assets written down for impairment without upward remeasurement until sale; FASB ASU 2023-08 replaced this for qualifying assets. They should be verified before using the coordinate in analysis.
The practical limit is: legacy impairment should not be described as current U.S. GAAP for in-scope holdings after mandatory adoption; scope, effective date, IFRS, tax basis and cash flow are separate, and old statements remain historical records. A definition, office, chart pattern or published claim is not by itself a prediction or Bitcoin consensus rule.
For the clearest picture, read this entry together with Fair-value accounting for bitcoin, FASB ASU 2023-08, Corporate Bitcoin treasury, Bitcoin. The reverse links also lead from Fair-value accounting for bitcoin, FASB ASU 2023-08, Bitcoin accounting policy.