Accounting for Cryptocurrency: ASU 2023-08 Fair Value, Tax Treatment, and Practical Guidance

The Old Model: Indefinite-Lived Intangible Asset

Before ASU 2023-08, companies holding cryptocurrency were required to account for it as an indefinite-lived intangible asset under ASC 350. This created two significant problems. First, write-downs were one-directional: if Bitcoin dropped from $60,000 to $30,000, a company had to recognise an impairment charge. If Bitcoin then rose back to $55,000, the recovery could not be recognised — the asset remained at the impaired carrying value until sold. This produced a systematic understatement of crypto asset values after any price decline.

Second, the standard required annual impairment testing (or more frequently if indicators existed), but with crypto markets trading 24/7 and prices fluctuating by 10–20% daily, "impairment indicators" were perpetually present, requiring constant monitoring. The practical burden was significant for companies holding crypto as treasury assets. For the general impairment testing framework, see the impairment testing guide.

ASU 2023-08: Fair Value Accounting for Crypto

The FASB issued ASU 2023-08 in December 2023, effective for fiscal years beginning after December 15, 2024 (i.e., fiscal year 2025 for calendar-year entities). The new standard requires companies to measure qualifying crypto assets at fair value each reporting period, with changes in fair value recognised in net income. This eliminates the one-directional impairment problem: both gains and losses are recognised each period as fair value changes, just like trading securities.

This is a significant improvement in financial reporting quality for crypto holders: the balance sheet now shows the current economic value of the crypto holdings, and the income statement reflects actual gains and losses from holding positions. The change was driven by intensive lobbying from companies (particularly technology and financial services firms) that had adopted Bitcoin treasury strategies and found the old model produced misleading financial statements.

What Assets Qualify for Fair Value Treatment

Not all crypto assets qualify for fair value treatment under ASU 2023-08. Qualifying assets must meet all of the following criteria:

• Meet the definition of an intangible asset under ASC 350
• Do not provide the entity with enforceable rights to or claims on underlying goods, services, or other assets
• Reside on a distributed ledger based on blockchain or similar technology
• Are secured through cryptography
• Are fungible (interchangeable with other units of the same asset)
• Are not created or issued by the reporting entity or its related parties

Bitcoin and Ethereum clearly qualify. Many other major cryptocurrencies likely qualify. NFTs (non-fungible tokens) do not qualify because they are not fungible. Stablecoins may or may not qualify depending on their specific contractual rights (a stablecoin redeemable for USD on demand may have enforceable claim rights, taking it out of scope).

Measuring Fair Value of Crypto

For crypto assets traded on active exchanges (Coinbase, Binance, Kraken), fair value measurement is straightforward under ASC 820's Level 1 hierarchy: the quoted market price in an active market. Unlike equity securities where different exchanges may show slightly different prices, crypto exchanges for major currencies typically show very close prices with transparent, real-time data.

The fair value is the principal market price — the market with the greatest volume for the specific asset. If the entity has access to multiple active markets, it uses the principal market or, in the absence of a principal market, the most advantageous market (highest price for an asset to be sold). For thinly traded or smaller crypto assets without active markets, Level 2 or Level 3 valuation inputs may be required.

Journal Entries Under ASU 2023-08

Unlike AFS securities (where unrealised changes go to OCI), crypto fair value changes under ASU 2023-08 go directly to net income — creating earnings volatility for companies with large crypto positions. This is similar to trading securities treatment. Companies holding material Bitcoin positions (like MicroStrategy/Strategy) will have income statements that significantly reflect Bitcoin price movements each quarter.

Tax Treatment of Cryptocurrency

For US federal tax purposes, the IRS treats cryptocurrency as property, not currency (IRS Notice 2014-21). This means: every taxable exchange — including selling crypto for cash, exchanging one crypto for another, or using crypto to purchase goods — triggers a taxable gain or loss equal to proceeds minus adjusted basis. Short-term capital gains (held ≤ 1 year) are taxed at ordinary rates; long-term capital gains (held > 1 year) are taxed at preferential 0%/15%/20% rates.

This creates a significant book-tax difference: under ASU 2023-08, unrealised gains and losses are recognised in book income each period, but for tax purposes, gain/loss is only recognised on actual taxable dispositions. This difference generates deferred tax assets (for unrealised book losses) or deferred tax liabilities (for unrealised book gains) that must be tracked and reported under ASC 740. See the deferred tax guide for how these timing differences flow through the financial statements.

NFTs and Non-Qualifying Crypto Assets

Assets outside ASU 2023-08's scope — NFTs, utility tokens, stablecoins with contractual redemption rights, and crypto created by the entity itself — continue to be accounted for under existing GAAP frameworks. NFTs are typically accounted for as indefinite-lived intangible assets (still subject to one-directional impairment) or, if held for sale, as inventory. Stablecoins redeemable for USD may be treated as cash equivalents or financial instruments depending on their specific terms. Custom tokens issued by the company are outside the standard and may represent financial liabilities or equity depending on their legal rights.