FASB Crypto Fair Value: What ASU 2023-08 Means for Your Clients

The Financial Accounting Standards Board's ASU 2023-08 represents the most consequential shift in how US entities account for cryptocurrency holdings in over a decade. At its core, the standard mandates fair value measurement for in-scope crypto assets, replacing the previous indefinite-lived intangible asset model that prevented firms from recognising upward price movements in their financial statements. For accounting firms advising corporate clients, and for CFOs and finance teams preparing US GAAP financial statements, understanding the mechanics of FASB crypto fair value accounting is no longer optional. The standard is already effective for fiscal years beginning after 15 December 2024, with early adoption permitted. That means many entities are reporting under it now. This article sets out what the standard requires, how it interacts with existing guidance under ASC 350-60 crypto rules, where it diverges from IFRS crypto assets treatment, and what disclosure obligations your clients need to meet.

Why the Old Intangible Asset Model Failed Crypto

Before ASU 2023-08, entities holding Bitcoin, Ether, or similar digital assets were required to treat them as indefinite-lived intangible assets under US GAAP. The practical consequences were significant. Companies could only write down the carrying value when the asset's fair value fell below its cost basis, recognising impairment losses. They could never write it back up, even when prices recovered substantially. This created a deeply asymmetric picture on the balance sheet: losses flowed through the income statement, but gains remained invisible until disposal.

The model also generated audit complexity. Determining the lowest intraday price to calculate impairment required firms to process large volumes of market data, and the resulting figures often bore little resemblance to the economic reality of the holding. Investors and analysts routinely disregarded GAAP carrying values for crypto and substituted their own fair value estimates, which undermined the purpose of financial reporting entirely.

FASB responded by developing ASU 2023-08 after extensive deliberation. The board concluded that fair value measurement provides more decision-useful information for crypto assets that trade on active markets with observable prices. The shift was not without controversy; some preparers argued that income statement volatility would be disruptive. FASB held firm, and the standard reflects the view that faithful representation of economic exposure outweighs presentation smoothness.

ASC 350-60 Crypto: Scope and In-Scope Assets

ASU 2023-08 created a new subtopic, ASC 350-60, specifically for crypto assets. Not every digital asset falls within scope. The guidance applies to assets that meet all of the following criteria: they must meet the definition of an intangible asset under US GAAP, they must not provide the holder with enforceable rights to, or claims on, underlying goods, services, or other assets, they must reside on a distributed ledger or blockchain, they must be secured through cryptography, they must be fungible, and they must not be created or issued by the reporting entity itself.

This scoping has meaningful practical implications. Wrapped tokens, stablecoins backed by fiat or commodities, non-fungible tokens, and tokens that represent equity or debt instruments are generally excluded. The most common in-scope assets are Bitcoin and Ether, the two assets most frequently held on corporate balance sheets. For clients with more complex portfolios spanning DeFi protocols, staking positions, or tokenised real-world assets, a careful asset-by-asset scoping exercise is required before applying ASC 350-60.

The table below summarises how common crypto asset types are treated under the new subtopic.

Asset Type	In Scope (ASC 350-60)?	Reason
Bitcoin (BTC)	Yes	Fungible, blockchain-based, no underlying claim
Ether (ETH)	Yes	Fungible, blockchain-based, no underlying claim
Fiat-backed stablecoins	No	Represent a claim on underlying fiat assets
Non-fungible tokens (NFTs)	No	Not fungible
Tokens issued by the reporting entity	No	Excluded by definition
Wrapped tokens	Likely No	Represent a claim on underlying asset; requires judgment

FASB Crypto Fair Value Measurement Mechanics

Once an asset is in scope, the entity must measure it at fair value at each reporting date, with changes recognised in net income. Fair value is determined under ASC 820, the existing fair value measurement framework. For assets traded on active, liquid markets such as Bitcoin or Ether, a Level 1 input, meaning a quoted price in an active market for an identical asset, is typically available and must be used. Entities cannot substitute a volume-weighted average price or an internal model when a Level 1 price exists.

The selection of the principal market is a judgement that deserves careful documentation. Under ASC 820, fair value reflects the price in the principal market for the asset, or in the absence of a principal market, the most advantageous market. For Bitcoin held by a corporate treasury, the principal market is generally the exchange through which the entity conducts the largest volume of transactions. Auditors will scrutinise this determination, so firms should ensure clients document their principal market assessment at adoption and revisit it periodically.

Because unrealised gains and losses flow directly through net income, clients should expect considerably more income statement volatility than under the old impairment model. Finance teams may need to revisit earnings guidance practices, and audit committees should be briefed on how crypto price movements will affect reported earnings per share in any given quarter.

Disclosure Requirements Under ASU 2023-08

The disclosure obligations introduced by ASU 2023-08 are extensive and represent a meaningful increase in reporting workload for many clients. Entities are required to present crypto assets separately from other intangible assets on the balance sheet. In the income statement, gains and losses from fair value remeasurement must be presented separately from other income and expense items, or disclosed in the notes if presented on a combined line.

The following table sets out the key disclosure requirements and the relevant reporting location.

Disclosure Requirement	Where Reported	Frequency
Carrying amount of each significant crypto asset	Balance sheet or notes	Each reporting period
Fair value gains and losses recognised in net income	Income statement or notes	Each reporting period
Nature and risks associated with holdings	Notes to financial statements	Annual
Restrictions on sale or transfer of crypto assets held	Notes to financial statements	Each reporting period
Reconciliation of opening to closing carrying amounts	Notes to financial statements	Annual

Annual disclosures must also include the cost basis of crypto assets held at year-end, details of any significant concentrations of holdings by asset type or custodian, and a description of any contractual restrictions such as lockup periods or pledging arrangements. Quarterly filers under SEC rules must provide updated fair value disclosures in interim financial statements as well.

For accounting firms, these requirements create a clear advisory opportunity. Clients who have not yet built the processes to capture cost basis, track custodian-level holdings, and produce the required reconciliations will need support. Accurate crypto sub-ledger and cost basis reconciliation workflows are essential to meeting these obligations without last-minute scrambles before filing deadlines.

IFRS Crypto Assets: How the Treatment Differs

For firms advising clients outside the United States, or for multinational groups preparing both US GAAP and IFRS financial statements, the divergence between the two frameworks is practically important. IFRS has not yet issued a dedicated standard for crypto assets. The IASB published a narrow-scope amendment to IAS 38 in 2019 confirming that most crypto assets are intangible assets, but stopped short of mandating fair value measurement for all holders.

Under IFRS, an entity may elect to apply the revaluation model under IAS 38 if an active market exists for the crypto asset. When the revaluation model is chosen, increases in carrying value are recognised in other comprehensive income rather than profit or loss, which is a fundamental difference from the ASU 2023-08 approach where all movements hit net income. Alternatively, entities may hold crypto at cost less impairment, similar to the old US GAAP treatment. Some entities that hold crypto as inventory, such as broker-dealers or miners, may instead apply IAS 2, which permits measurement at net realisable value with gains recognised in profit or loss.

The IASB is actively working on a more comprehensive agenda project for digital assets, but no final standard is expected in the near term. For now, crypto ifrs accounting requires more entity-level judgement than the prescriptive ASU 2023-08 model, which increases the documentation burden for IFRS preparers and their auditors.

Feature	US GAAP (ASC 350-60)	IFRS (IAS 38 / IAS 2)
Measurement basis	Fair value (mandatory for in-scope assets)	Cost or revaluation model (entity choice)
Gains recognised in profit or loss	Yes, unrealised gains hit net income	Only under IAS 2 or on disposal under IAS 38 cost model
Revaluation gains to OCI	Not applicable	Yes, under IAS 38 revaluation model
Specific crypto subtopic	Yes, ASC 350-60	No dedicated standard
Active market required for fair value	Yes, Level 1 preferred under ASC 820	Yes, for revaluation model election

Interaction with CARF and DAC8 Reporting Obligations

ASU 2023-08 addresses financial statement presentation, but corporate crypto holders face a broader compliance landscape. The OECD's Crypto-Asset Reporting Framework, known as CARF, establishes a global standard for the automatic exchange of information about crypto transactions between tax authorities. DAC8, the European Union's parallel directive, implements CARF within the EU and extends it to additional asset types including e-money tokens and certain NFTs.

CARF crypto reporting obligations fall primarily on crypto-asset service providers, exchanges, and brokers, rather than on corporate holders directly. However, the information reported under CARF about an entity's transactions will be visible to tax authorities in participating jurisdictions. Finance teams should therefore ensure that the cost basis and transaction records used for financial statement purposes under ASU 2023-08 are consistent with the data that will appear in CARF and DAC8 reports. Discrepancies between reported fair values, disclosed cost bases, and externally reported transaction data are a straightforward audit risk and a potential trigger for tax authority enquiries.

Accounting firms that help clients implement ASU 2023-08 disclosures are well-positioned to extend that advisory into CARF and DAC8 readiness reviews, particularly for clients with cross-border holdings or who use multiple exchanges and custodians.

Illustrative Scenario

To illustrate how this applies in practice, consider the following scenario:

Michael is the CFO of a mid-sized US technology company that adopted ASU 2023-08 for its fiscal year beginning January 2025. The company holds Bitcoin on its balance sheet as part of a treasury diversification strategy. Under the previous accounting model, the company had recognised a significant impairment charge in a prior year and was carrying Bitcoin well below its current market price. On adoption of ASC 350-60, the company remeasured its holdings at fair value as of the first day of the fiscal year, with the cumulative adjustment recorded as a change in accounting principle.

Michael's external accounting firm used CryptaCount to pull the complete transaction history for each Bitcoin holding, assign the correct cost basis using the company's documented FIFO policy, and calculate the fair value adjustment at adoption date. The platform also generated the note disclosure language required under ASU 2023-08, including the carrying amount reconciliation, the principal market documentation, and the restriction disclosures. What had initially appeared to be a multi-week manual exercise was completed in a fraction of the time, and the audit file included a clear trail linking every disclosure figure back to the underlying exchange data.

Frequently Asked Questions

What is ASU 2023-08 and when does it take effect?

ASU 2023-08 is a FASB accounting standard that requires entities to measure in-scope crypto assets at fair value at each reporting date, with changes recognised in net income. It is effective for fiscal years beginning after 15 December 2024, though early adoption was permitted. Many entities are already reporting under it.

Which crypto assets are in scope for ASC 350-60?

ASC 350-60 applies to fungible, blockchain-based crypto assets that meet the definition of an intangible asset, do not represent a claim on underlying goods or assets, and are not issued by the reporting entity. Bitcoin and Ether are the most common in-scope assets. Stablecoins backed by fiat, NFTs, and tokens issued by the entity itself are generally excluded.

How does FASB crypto fair value measurement work in practice?

Under ASC 350-60, fair value is determined using ASC 820. For assets with active liquid markets, a Level 1 quoted price must be used. The entity must identify its principal market for each asset, which is typically the exchange where it transacts most frequently. This determination should be documented and reviewed periodically.

Where do unrealised gains and losses appear under ASU 2023-08?

Both unrealised gains and losses flow through net income under ASU 2023-08. This is a significant departure from the old intangible asset model, under which only impairment losses were recognised. Finance teams should prepare stakeholders for increased income statement volatility tied to crypto price movements.

How does crypto US GAAP accounting under ASC 350-60 differ from IFRS?

Under IFRS, entities typically account for crypto assets as intangible assets under IAS 38 and may choose between the cost model and the revaluation model. Revaluation gains under IFRS go to other comprehensive income, not profit or loss, unlike the ASU 2023-08 treatment. IFRS has not yet issued a dedicated crypto asset standard, so more entity-level judgement is required.

What disclosures are required under ASU 2023-08?

Entities must separately present crypto assets on the balance sheet, disclose fair value gains and losses separately in the income statement or notes, and provide a reconciliation of carrying amounts. Annual disclosures must also cover cost basis, concentrations by asset type or custodian, and any restrictions on sale or transfer of holdings.

How does CARF crypto reporting interact with ASU 2023-08?

CARF and DAC8 are tax information reporting frameworks that require crypto-asset service providers to report transaction data to tax authorities. While CARF does not directly govern financial statement presentation, the transaction records and cost bases disclosed under ASU 2023-08 should be consistent with data reported under CARF. Discrepancies can create audit risk and draw tax authority scrutiny.

Do accounting firms need new technology to support ASU 2023-08 clients?

Yes, for most firms. ASU 2023-08 requires accurate cost basis tracking, fair value data at each reporting date, principal market documentation, and detailed note disclosures. Clients with large or complex crypto portfolios cannot produce these outputs reliably through manual processes. Purpose-built crypto accounting software significantly reduces the preparation and audit risk.

Can a company adopt ASU 2023-08 before the mandatory effective date?

Yes. FASB permitted early adoption of ASU 2023-08 from the date of issuance. Entities that adopted early were required to apply it using a cumulative-effect adjustment as of the beginning of the fiscal year of adoption, recognising any difference between the previous carrying value and fair value at that date.

Is there a specific principal market requirement under ASC 350-60?

Yes. Under ASC 820, fair value must reflect the price in the principal market for the asset. For most corporate holders of Bitcoin or Ether, the principal market is the exchange through which the entity transacts most volume. This requires documentation and should be assessed at adoption and reviewed whenever the entity's trading patterns change materially.

Source: CryptaCount