Fork Token Valuation: Pricing and Reporting Tokens Received in a Chain Split
Author: Redwood Valuation Content Team
Published: August 21, 2026
A chain split can leave a holder with a new cryptocurrency and two immediate valuation questions: when was the asset received, and what was it worth at that time? If the asset also appears on a balance sheet, a separate financial-reporting question follows: how should it be measured for accounting purposes? Published guidance gives a relatively clear framework for the first question, but far less direction on valuation methodology. The financial-reporting analysis operates under a different framework.
Valuing the new asset therefore requires more than looking up a price. The holder has to identify the relevant measurement date, determine what evidence of value existed at that time, select and support an appropriate market or pricing source, and keep the tax and financial-reporting analyses separate.
What a Fork Is, and Which Kind Matters
This article focuses on hard forks that leave a holder with a new asset to value. Blockchain networks can also experience temporary forks or competing branches that resolve without creating a separate asset, but those events are not the focus here.
IRS guidance uses the term “cryptocurrency” when discussing assets created through a hard fork. Revenue Ruling 2019-24 defines a hard fork as a protocol change that causes a permanent diversion from the legacy distributed ledger. A hard fork may result in a new cryptocurrency, but it doesn’t necessarily do so. In this article, we’ll generally refer to an asset created by a hard fork as the “new asset” or the “forked asset,” except when discussing IRS guidance that uses the term “cryptocurrency.”
| Event | Effect on the ledger | New digital asset? |
|---|---|---|
| Hard fork with a permanent chain split | Permanent diversion from the legacy ledger | May |
| Soft fork | Backward-compatible; no permanent diversion | No |
| Temporary or accidental fork | Competing blocks or branches resolve under the protocol’s consensus rules | No |
| Coordinated upgrade | New rules adopted together; no split | No |
Under IRS Notice 2014-21, virtual currency is property for federal income tax purposes, so general property principles apply. The terminology used to describe fork events is less settled. Chief Counsel Advice memorandum 202114020 notes that cryptocurrency terminology “often changes and lacks uniformity.” It specifically identifies terms such as “contentious hard forks,” “persistent chain splits,” and “schism hard forks.” The tax analysis therefore focuses on what the holder actually received and when dominion and control arose, rather than on the label attached to the event. The memorandum itself is nonprecedential and states that it may not be used or cited as precedent.
Scope. This article addresses U.S. holders receiving units from a chain split of a third-party protocol. Entities that fork their own protocol, issuer accounting, and securities-offering compliance require separate analysis.
When a Fork Creates Taxable Income
A hard fork by itself produces no gross income. Income arises when you receive units of a new cryptocurrency and have dominion and control over them, and the amount is ordinary income equal to the fair market value of those units.
The ruling states both parts of that rule as holdings:
“A taxpayer does not have gross income under § 61 as a result of a hard fork of a cryptocurrency the taxpayer owns if the taxpayer does not receive units of a new cryptocurrency.”
“A taxpayer has gross income, ordinary in character, under § 61 as a result of an airdrop of a new cryptocurrency following a hard fork if the taxpayer receives units of new cryptocurrency.”
Two details carry weight. The character is ordinary income, not capital gain. The trigger is dominion and control, meaning the ability to transfer, sell, exchange, or otherwise dispose of the units, generally when they are recorded on the ledger and available to the taxpayer. A soft fork produces no income because no new asset exists to receive.
The label attached to the distribution doesn’t control the tax result. The Chief Counsel Advice memorandum states that the way in which a new cryptocurrency is distributed or made available following a hard fork doesn’t affect the ruling’s holding, and it notes that the distribution ratio need not be one-to-one. What matters is what the holder actually received. Mining and staking rewards are different events governed by other guidance: Notice 2014-21 addresses mining, and Revenue Ruling 2023-14 addresses staking rewards.
Valuing a Forked Crypto Asset at Receipt
Revenue Ruling 2019-24 answers the valuation question only in part. It says that the amount of income is the fair market value of the new cryptocurrency at receipt, but it doesn’t explain how that value should be determined. No authoritative guidance prescribes a fork-specific valuation method.
The ruling’s own example illustrates the gap because the valuation step is simply assumed. It states that “the fair market value of B’s 25 units of Crypto S is $50.” The ruling gives the number but never explains how it was derived.
The guidance that does exist works around that gap rather than filling it. The IRS digital-asset FAQs provide older examples of valuation evidence in exchange and peer-to-peer transactions, but the IRS now says those FAQs generally apply to transactions completed before January 1, 2025. The examples are useful context. They aren’t a fork-specific valuation method.
Those FAQs generally use the amount recorded by an exchange for an exchange-facilitated transaction. For a peer-to-peer or other non-exchange transaction, they also accept certain cryptocurrency or blockchain-explorer values as evidence of fair market value. Another FAQ provision covers cryptocurrency with no published value received in exchange for property or services, and it sets fair market value equal to the value of the property or services exchanged. Read on its own terms, it doesn’t reach a fork, where the recipient exchanges nothing.
One piece of fork-specific methodology language appears in the memorandum. It indicates that a taxpayer could determine fair market value using any reasonable method, such as a publicly published price from a cryptocurrency exchange or data aggregator. The memorandum is nonprecedential and doesn’t create a safe harbor.
Sometimes the valuation is straightforward. For a forked asset that lists quickly and trades actively across major venues, a published price from a consistently identified reference source can be a reasonable and defensible answer. Harder cases involve dispersed prices across venues, delayed listings, or assets that never list at all.
Bitcoin Cash illustrates why choosing a pricing source is part of the valuation analysis. Contemporaneous reporting from the first days of the chain split described uneven exchange support, with rates ranging from roughly 0.05 to 0.4 bitcoin (BTC) per unit of Bitcoin Cash (BCH) across platforms in the same window. Exchange prices can still provide good evidence of value, but the spread shows that “use the exchange price” isn’t a complete method until you’ve chosen a venue, determined a measurement instant, and documented your reasoning.
Selecting the reference exchange or pricing source and the measurement date and time is a judgment, and the rationale should be documented. The record should cover:
Which venue or pricing source was used, and why that one
The measurement date and time, with the precision the facts allow
Whether a single venue, a composite, or an aggregator is better evidence
What the source published at that instant, and how it was preserved
“No market” doesn’t automatically mean zero value. An asset with no market at receipt is one of the hardest cases because there is little authority explaining how it should be valued. The conclusion is necessarily based on the facts and circumstances. A value at or near zero needs contemporaneous evidence and a documented rationale.
When Dominion and Control Arrives Months Later
If your custodian doesn’t support the new asset at the time of the chain split, you generally don’t have dominion and control, and receipt is treated as occurring later, when you acquire the ability to dispose of it. That can fall in a different tax year, at a different price.
Revenue Ruling 2019-24 puts the custodial fact pattern in the text: “For example, a taxpayer does not have dominion and control if the address to which the cryptocurrency is airdropped is contained in a wallet managed through a cryptocurrency exchange and the cryptocurrency exchange does not support the newly-created cryptocurrency such that the airdropped cryptocurrency is not immediately credited to the taxpayer’s account at the cryptocurrency exchange. If the taxpayer later acquires the ability to transfer, sell, exchange, or otherwise dispose of the cryptocurrency, the taxpayer is treated as receiving the cryptocurrency at that time.”
The memorandum shows how the same chain split can produce different receipt dates for different holders. One holder could dispose of the new units at the split, so the analysis placed income there. Another held through an exchange that didn’t support the asset, so the analysis placed income in the following tax year when support began. The two receipt dates were roughly five months apart even though the protocol facts were identical, which also meant a different measurement date and potentially a different price.
The relevant measurement instant follows the dominion-and-control analysis; it isn’t simply the chain-split timestamp. A self-custodied holder may have control at the split if the holder can actually transfer, sell, exchange, or otherwise dispose of the new units at that time. A custodied holder may not have control until the exchange or custodian makes the asset available. The protocol event matters, but the tax measurement date follows the holder’s actual ability to dispose of the asset.
Basis After a Fork
Your basis in the original holding doesn’t change. The new units take a basis equal to the amount of income you recognized on receipt, which Revenue Ruling 2019-24 grounds in sections 61 and 1011 and Treas. Reg. section 1.61-2(d)(2)(i).
Legacy holding: basis unchanged
New units: basis equal to the income recognized at receipt
Both: tracked at the wallet or account level, not in a universal pool
A fork isn’t a corporate spin-off. IRC section 355 addresses distributions of stock or securities of a controlled corporation, and the published guidance treats forked units as an accession to wealth with a fresh basis rather than a division of the original basis. Commentary predating the 2019 ruling explored spin-off-style allocation; the published guidance answers the question the other way.
A separate recordkeeping rule affects how that basis is tracked without changing what is taxable. From January 1, 2025, digital asset cost basis is tracked per wallet or account rather than across a universal pool. The identification method is applied within each wallet or account, and Rev. Proc. 2024-28 provided a one-time safe harbor for assigning the basis of existing digital-asset holdings to individual wallets and accounts. Forked units land in a specific wallet, so their basis is tracked there. Confirm your basis tracking with your tax advisor before relying on prior-year records. See also token valuation and tax reporting.
Forked Assets Under ASC 350-60: Scope, and What the Standard Leaves Open
Whether a forked asset falls under ASC 350-60 is a six-criterion test to perform and document, not a conclusion to assume. And even when the answer is yes, the standard states directly that it doesn’t address how the asset comes onto the books.
ASC 350-60 applies to holdings of assets that meet all six of the following criteria:
Meet the definition of intangible assets
Do not provide the asset holder with enforceable rights to or claims on underlying goods, services, or other assets
Are created or reside on a distributed ledger based on blockchain or similar technology
Are secured through cryptography
Are fungible
Are not created or issued by the reporting entity or its related parties
A forked asset isn’t categorically inside or outside ASC 350-60. For a typical native forked crypto asset, criteria 1, 3, 4, and 5 are ordinarily straightforward. Criteria 2 and 6 require closer attention. The application of Criterion 2 depends on what rights the new chain confers. Criterion 6 is ordinarily satisfied when a holder receives units from a fork of a third-party protocol, but not when the reporting entity or a related party created or issued the asset. The scope conclusion is worth documenting while the facts are fresh.
For assets in scope, ASC 350-60 requires subsequent measurement at fair value in the statement of financial position, with gains and losses from remeasurement included in net income. It is effective for all entities for fiscal years beginning after December 15, 2024, including interim periods within those fiscal years, with early adoption permitted and no public company/private company split. Then comes the paragraph that matters most for a fork receipt:
“This Subtopic does not address the initial measurement, recognition, and derecognition of crypto assets. Reporting entities shall account for the initial measurement, recognition, and derecognition of crypto assets in accordance with other generally accepted accounting principles (GAAP).” (ASC 350-60-05-2)
The standard tells you how to carry the asset after it is on the books. It doesn’t tell you what number to carry it in at, and a fork receipt is precisely an initial-recognition event. Which other GAAP applies is a judgment. No fork-specific authoritative GAAP guidance was identified for initial recognition of a fork receipt, and the major implementation FAQs on the standard don’t reach forks either. Choose an approach, apply it consistently, and document why.
Measuring Fair Value Under ASC 820
ASC 820 doesn’t permit a discount merely because the reporting entity holds a position large enough to move the market. For a Level 1 position in an identical asset traded in an active market, fair value is the quoted price per unit multiplied by the quantity held, even if selling the entire position in one transaction could affect the quoted price.
The analysis starts by identifying the relevant market. The reporting entity uses its principal market or, if there’s no principal market, the most advantageous market. Within that framework, a Level 1 input is a quoted price in an active market for an identical asset that the reporting entity can access at the measurement date. An aggregator or index doesn’t, by itself, replace the principal-market analysis or an available Level 1 quoted price.
ASC 820-10-35-36B prohibits blockage factors and other discounts that reflect the size of the reporting entity’s holding rather than a characteristic of the asset or liability. For Level 1 holdings, ASC 820-10-35-44 separately provides the price-times-quantity rule: fair value is the quoted price for the individual asset multiplied by the quantity held. A large position doesn’t, by itself, support a lower fair-value measurement.
The prohibition doesn’t disappear by moving down the hierarchy. Reclassifying a large holding to Level 2 or Level 3 on the ground that the block would move the market is the same adjustment by another route. What can still matter is a different question:
May affect fair value: a restriction that is a characteristic of the asset itself, such as a legal or protocol lockup that market participants would consider
May affect hierarchy and input selection: thin trading and input observability, which often place a newly forked asset at Level 2 or Level 3 early on
Not considered: a restriction or circumstance specific to the holder, including position size
ASU 2022-03 clarifies the treatment of contractual sale restrictions on equity securities. It doesn’t directly establish the treatment of restrictions on crypto assets. For a forked crypto asset, the relevant question under ASC 820 is whether the restriction is a characteristic of the asset that market participants would consider, rather than a restriction or circumstance specific to the reporting entity. A protocol-level lockup that travels with the asset may matter. The fact that you hold a lot of it doesn’t.
Tax Fair Market Value and ASC 820 Fair Value
Tax fair market value and ASC 820 fair value are different standards for different purposes, and the terms aren’t interchangeable. The same fork, on the same date, may require different analyses and, in some cases, different conclusions.
| Tax fair market value | ASC 820 fair value | |
|---|---|---|
| Definition | The price at which property would change hands between a willing buyer and a willing seller, neither under compulsion and both having reasonable knowledge of the relevant facts | An exit price between market participants at the measurement date |
| Measurement reference | A consistently identified reference exchange or pricing source, supported by the facts | The principal market, or the most advantageous market if there is none |
| Large or restricted position | Facts and circumstances. Fork-specific IRS guidance does not prescribe whether or how a blockage or marketability adjustment applies. Market depth, transfer restrictions, and other characteristics require support; there is no default percentage or automatic large-holder discount. | A marketability adjustment must tie to a characteristic of the asset. Position size is not considered. |
| Purpose | Determining includible income and basis | Reporting the asset in the financial statements |
Marketability can matter in both analyses, but the reasoning must be kept separate. For tax purposes, market depth, transferability, and restrictions may matter where the facts and applicable authority support them. Under ASC 820, a restriction matters only when it is a characteristic of the asset rather than of the holder.
A separate issue is double counting. A price observed in a thin early market may already reflect some of the illiquidity that a separate adjustment would address. Before applying an additional adjustment, the analysis should determine what the observed price already captures. Fair market value for tax purposes and fair value under ASC 820 are separate valuation analyses. A conclusion reached for one purpose doesn’t automatically determine the conclusion for the other.
A Note on Securities Law
Securities analysis attaches to an offer, sale, or transaction rather than to an asset’s label, and the Howey test remains the framework. Classification can affect structure, disclosure, and valuation assumptions. In March 2026, the SEC, joined by the CFTC, issued a release applying federal securities-law analysis to crypto-asset transactions. The release addresses airdrops, but whether its reasoning reaches a particular chain-split distribution is a question for legal counsel as of the transaction date. This note isn’t legal advice.
What to Document
Because no authority prescribes a fork-specific valuation method, the documentation needs to show how the conclusion was reached. The file should support the timing determination, the valuation evidence, and the separate tax and financial-reporting analyses. A practical way to organize the workpapers is to start with the event and tax facts, then move to the reporting analysis, and finally turn to the items that span both:
Identification of the chain split: the event, the block, and the distribution ratio
Asset description and rights analysis for the new chain
Holder and issuer relationship, including related-party facts
The dominion-and-control determination, with its date, time, and supporting evidence
The ASC 350-60 scope conclusion against the six criteria
Reference pricing source or principal-market identification, with the measurement date and time and the rationale
ASC 820 hierarchy level and input sources
Restriction analysis, separating asset characteristics from holder characteristics
Method selection and weighting, with sensitivity analysis where appropriate
Rationale for any marketability adjustment, and why it isn’t a prohibited holder-size discount
Changes since the prior reporting date, and reassessment triggers
Files built while the facts are fresh tend to be more defensible than files reconstructed a year later, and the difference usually shows up in the timing evidence.
Some fork situations stay a spreadsheet exercise. Others may require a more formal valuation process, especially when the holding is material, when listing is delayed or never happens, when the tax and reporting answers visibly diverge, when an audit team pushes back, or when a chain split lands near a reporting date.
What the Guidance Leaves You
Published guidance is much clearer about when forked units become taxable than about how those units should be valued. That gap is why the valuation requires more than looking up a price. The analysis has to establish the relevant moment, select and support the pricing evidence, and document a rationale someone else can follow. If a chain split is in your facts this year, both the number and the support for it matter. A defensible file should show not only what value you used, but how you reached it.
Frequently Asked Questions
Do I have income from a fork if I never received new units?
No. Under Revenue Ruling 2019-24, a taxpayer does not have gross income under section 61 from a hard fork of a cryptocurrency the taxpayer owns if the taxpayer does not receive units of a new cryptocurrency. Income arises when you receive units of a new cryptocurrency and have dominion and control over them, and the amount is ordinary income equal to their fair market value.
What if my exchange didn’t support the forked asset?
If your custodian doesn’t support the new asset at the time of the chain split, you generally don’t have dominion and control, and Revenue Ruling 2019-24 treats receipt as occurring later, when you acquire the ability to transfer, sell, exchange, or otherwise dispose of it. That can fall in a different tax year, at a different price.
Which exchange’s price do I use when the forked asset trades at different prices across venues?
For tax purposes, no authoritative guidance prescribes how to determine the fair market value of a cryptocurrency received in a fork. Selecting the reference exchange or pricing source and the measurement date and time is a judgment, and the selection and its rationale should be documented, along with what that source published at that instant.
What if the forked asset never gets listed anywhere?
“No market” is not an automatic zero. For tax purposes, an asset with no market at receipt is the hardest case and has the least authority behind it. It’s a facts-and-circumstances judgment, and a conclusion at or near zero needs contemporaneous evidence and a documented rationale.
How are forked crypto assets measured on the balance sheet?
For assets in scope, ASC 350-60 requires subsequent measurement at fair value, with gains and losses from remeasurement included in net income. A forked asset is in scope only if it satisfies all six criteria in the standard. Those criteria address whether the asset is an intangible asset and whether it provides enforceable rights to underlying goods, services, or other assets. They also address its use of blockchain or similar technology, cryptographic security, fungibility, and whether it was created or issued by the reporting entity or a related party. ASC 350-60 doesn’t address initial measurement, recognition, or derecognition, so entities apply other GAAP and document the approach.
Can I discount a large forked position because the new market is thin?
Not under ASC 820 merely because the position is large. ASC 820-10-35-36B prohibits blockage factors and other discounts that reflect the size of the reporting entity’s holding rather than a characteristic of the asset or liability. For Level 1 holdings, the fair-value measure is the quoted price multiplied by the quantity held. Tax fair market value is a separate analysis under a different framework, but fork-specific IRS guidance does not prescribe an automatic large-position or marketability adjustment.