Issuers airdrop for reasons that are about distribution rather than generosity. The SEC's own list is a useful summary of them: to "generate interest in and expand ownership and use of their crypto assets, reward early users or loyalty of users of a crypto system, promote a software application, build a community, decentralize governance authority with respect to an open-source crypto system, or award high-scoring players of an associated video game". The issuer picks the recipients and every other term. Common criteria include holding some other specified asset, having used a particular application before a cut-off date, or having used a test version of the network.
The tax treatment, and exactly how far the ruling reaches. Revenue Ruling 2019-24 answers two questions, both framed around a hard fork. Where a fork produces a new cryptocurrency but the holder receives no units of it, there is no accession to wealth and no gross income. Where a fork is followed by an airdrop and the holder does receive units, the holder has gross income, ordinary in character, in the year of receipt, measured by the fair market value of the units when the airdrop is recorded on the distributed ledger. The ruling's reasoning is not fork-specific: it rests on section 61 of the Internal Revenue Code and on the Supreme Court's formulation in Commissioner v. Glenshaw Glass Co., under which "all gains or undeniable accessions to wealth, clearly realized, over which a taxpayer has complete dominion, are included in gross income". But the holding is fork-specific, and the gap is checkable rather than a matter of opinion: the IRS's current digital-asset questions and answers, updated in 2026, answer the soft-fork and hard-fork cases and contain no airdrop question at all. A reader should therefore understand the ruling as the IRS's clearest statement of how it analyzes these distributions, not as a decided answer for every kind of airdrop.
Dominion and control is the part that surprises people. The ruling says cryptocurrency from an airdrop "generally is received on the date and at the time it is recorded on the distributed ledger", and then removes that default where the recipient cannot actually use the asset. Its own example is an address held in a wallet managed through an exchange where the exchange does not support the new coin, "such that the airdropped cryptocurrency is not immediately credited to the taxpayer's account". In that case there is no receipt yet, and "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". So the same distribution can be income in different years for two people, depending on where the address sat and what the platform supported.
The securities analysis is a separate question with a narrower answer. The March 2026 interpretation addresses whether an airdropped non-security crypto asset becomes subject to an investment contract, and concludes that where an issuer airdrops "in the manner and under the circumstances described in this release", it does not, because the first element of the Howey test, an investment of money, is not met. Two qualifiers carry real weight. The first is that phrase: the conclusion is tied to the fact pattern the release describes and does not certify airdrops generally. The second is the interpretation's own carve-out. It "does not pertain to any airdrops of non-security crypto assets where the recipient provides the issuer with money, goods, services, or other consideration in exchange for the airdropped non-security crypto asset, such as where the recipient performs a service". The release names those services, and they are the familiar ones: following the issuer on social media, reposting a message, writing an article about the system, referring another person, or fixing bugs in its software. A footnote adds that conditions imposed after the airdrop is announced, such as buying a specific asset or performing a task, also take the distribution outside the interpretation. The task-for-tokens airdrop, in other words, is the one the interpretation does not cover, and it is also the one that most plainly looks like payment for services on the tax side.
Nothing in the securities analysis moves the tax analysis. The interpretation says so directly: "No interference is intended with respect to any other legal regime, including the Federal tax laws under the Internal Revenue Code".