What happened
In December 2023 the Financial Accounting Standards Board issued Accounting Standards Update 2023-08, which creates Subtopic 350-60 for the accounting and disclosure of crypto assets.
An asset is in scope if it meets six criteria: it is an intangible asset, it gives its holder no enforceable claim on underlying goods, services or other assets, it resides on a distributed ledger, it is secured through cryptography, it is fungible, and it was not created or issued by the reporting entity or a related party. Bitcoin satisfies all six. A token an issuer minted for itself does not.
In-scope assets are measured at fair value each reporting period, with changes recognised in net income and presented separately from other intangibles. Annual disclosures include a rollforward of holdings and detail for each significant holding. The update is effective for fiscal years beginning after 15 December 2024, with early adoption permitted, and transition runs through a cumulative-effect adjustment to opening retained earnings.
What it changes
The old treatment is the interesting half. Under existing GAAP, crypto assets in this scope are indefinite-lived intangible assets: tested for impairment, written down when fair value falls below carrying value, and, in the update's own words, "subsequent increases in the carrying amount of the asset and reversal of an impairment loss are prohibited."
That is a one-way ratchet. Carrying value tracks the lowest price the asset touched since it was acquired, and any recovery stays invisible until sale.
The size of the gap this produces is on the public record. In its quarterly report for the period ended 30 September 2023, MicroStrategy reported 158,245 bitcoin carried at 2.230 billion of cumulative impairment losses. The same filing states the company had acquired approximately 158,400 bitcoin for an aggregate 34,555.58 on 31 October 2023. The balance sheet showed roughly half of what had been paid, in a quarter when the holding was worth more than what had been paid.
What it does not change
FASB is not a regulator. It is a private standard setter whose output the SEC recognises for US public company reporting. Nothing here permits anyone to buy anything, and no prudential or investment rule moves because of it.
It does not change tax. Recognising a fair value change in net income is a reporting event, not a realisation event, and the tax code keeps its own rules about when gain is counted.
And it does not remove volatility, it relocates it. Under the old model a decline hit earnings and a recovery did not. Under the new one both do, every quarter. Symmetry is not calm.
Context
The old treatment was never designed for this. ASC 350 governs intangible assets such as trademarks and licences, which have no continuously quoted market price, and impairment-only measurement is a reasonable default when there is no reliable market to mark against. Bitcoin arrived with a deep, continuously quoted market and got that treatment anyway, because it fit the definition of an intangible asset and nothing else in the codification claimed it.
Holders and their auditors had been saying so for years, including in the public comment file on the Board's own exposure draft.