📘 On October 9, 2019, the Internal Revenue Service issued Revenue Ruling 2019-24, clarifying when cryptocurrency hard forks and airdrops create taxable ordinary income. This guide explains the ruling, its practical implications, recordkeeping essentials, reporting basics, and risk controls — all in plain English.
Revenue Ruling 2019-24 (Rev. Rul. 2019-24) is an official IRS pronouncement that addresses the federal income tax treatment of cryptocurrency hard forks and airdrops[reference:0]. It builds on Notice 2014-21, which established that cryptocurrency is treated as property for U.S. federal tax purposes[reference:1].
The ruling focuses on two core questions[reference:2]:
The answers, as we will see, depend entirely on whether the taxpayer receives and can control the new cryptocurrency.
If a cryptocurrency you own undergoes a hard fork, but no units of the new cryptocurrency are airdropped or otherwise transferred to an account you own or control, you do not have gross income at that time[reference:3][reference:4]. The hard fork alone is not a taxable event. You have received no new property, and there is no accession to wealth.
If a hard fork occurs and units of the new cryptocurrency are airdropped into your wallet or account, and you are able to exercise dominion and control over those units, you have gross income — ordinary in character — equal to the fair market value of the new cryptocurrency at the time of receipt[reference:5][reference:6].
📌 Key takeaway: The taxable event is not the hard fork itself. It is the receipt of new cryptocurrency via an airdrop that you can control, use, sell, or transfer.
The IRS emphasizes that income is recognized only when the taxpayer has dominion and control over the new cryptocurrency[reference:7][reference:8]. This is a fact-based determination.
Airdropped cryptocurrency is generally received on the date and at the time it is recorded on the distributed ledger[reference:9]. However, if the cryptocurrency is airdropped to an address managed by an exchange that does not yet support the new token, and the cryptocurrency is not immediately credited to your account, you are not treated as having received it until you can transfer, sell, or otherwise dispose of it[reference:10].
💡 Practical implication: If you hold crypto on an exchange that does not support a new forked token, you may not have taxable income until the exchange enables trading or withdrawal of that token. Keep records of when you gain actual control.
Because the IRS treats cryptocurrency as property, you bear the burden of proving basis, fair market value, and the timing of receipt[reference:11]. For hard fork airdrops, meticulous records are essential.
Note: If you use a custodial exchange or wallet provider, confirm whether they support the new token and when they credit it to your account — that date may determine your tax year of inclusion.
Income from a hard fork airdrop is reported as ordinary income on your federal income tax return for the tax year in which you receive the new cryptocurrency (i.e., when you have dominion and control)[reference:12][reference:13].
⚠️ Important: You must report the income even if you do not receive a Form 1099-DA or other information return[reference:17]. The IRS expects taxpayers to self-report all cryptocurrency income.
For the most current reporting instructions, always refer to the latest IRS forms, instructions, and the IRS.gov digital assets guidance. Forms and reporting requirements may change.
The table below summarizes the key differences and tax outcomes under Rev. Rul. 2019-24.
| Event | Definition | Taxable? | Character of Income |
|---|---|---|---|
| Hard Fork only (no airdrop) |
Protocol change creating a new cryptocurrency, but no units are distributed to you | ❌ No | — |
| Hard Fork + Airdrop (with dominion & control) |
New cryptocurrency units are distributed to your wallet/account and you can control them | ✅ Yes | Ordinary income under § 61 |
| Hard Fork + Airdrop (without dominion & control) |
Units are airdropped but you cannot yet access, trade, or withdraw them | ❌ Not yet | Income deferred until you gain control |
| Later sale of airdropped crypto | Disposing of the cryptocurrency you received via airdrop | ✅ Yes | Capital gain/loss (short- or long-term) |
Use this checklist to stay on track when a hard fork or airdrop affects your cryptocurrency holdings.
Alice holds 50 units of Crypto R in a personal wallet. On Date 2, the Crypto R blockchain undergoes a hard fork, creating Crypto S. On that same date, 25 units of Crypto S are airdropped to Alice’s wallet address[reference:19]. Alice can immediately transfer, sell, or exchange the Crypto S tokens.
Tax result: Alice has ordinary income in the tax year of the airdrop equal to the fair market value of the 25 Crypto S units on Date 2. Her basis in the Crypto S is that same amount. If she later sells the Crypto S for more than her basis, she will have a capital gain (short-term or long-term depending on how long she held it).
Compare: If Alice had held her Crypto R on an exchange that did not support Crypto S, and the exchange did not credit the tokens to her account until Date 60, her income would be recognized on Date 60 — when she gained dominion and control[reference:20].
While Rev. Rul. 2019-24 provides clear guidance on hard forks and airdrops, the broader regulatory landscape for digital assets continues to evolve. The IRS has issued subsequent guidance — including Chief Counsel Advice and proposed regulations — that may affect reporting obligations[reference:26][reference:27].
🔎 How to stay current: Regularly check the IRS digital assets page, subscribe to tax professional updates, and consult official sources before filing. Tax laws, forms, and reporting requirements may change.
⚠️ Tax compliance risks are real. The IRS has actively pursued cryptocurrency non-compliance through audits, educational letter campaigns, and criminal investigations[reference:31]. In 2019, the IRS sent letters to more than 10,000 taxpayers who may have failed to properly report virtual currency transactions[reference:32].
Failure to report income from hard fork airdrops can result in:
This guide is for educational purposes only and does not constitute tax, legal, or financial advice. Every taxpayer’s situation is unique. You should consult a qualified tax professional for advice specific to your circumstances.
Revenue Ruling 2019-24 provides a framework, but applying it to your specific facts can be challenging. Consider consulting a tax professional if:
A qualified tax professional can help you determine the correct amount of income, establish proper basis, and ensure compliance with current IRS rules. They can also assist with state tax filings, which may differ from federal treatment.
No. A hard fork without an airdrop does not create taxable income because you have not received any new property[reference:35].
You recognize income when you have dominion and control over the new cryptocurrency — i.e., when you can transfer, sell, exchange, or otherwise dispose of it[reference:36].
Use the USD value at the time you gain dominion and control. If the transaction was facilitated by an exchange, use the exchange’s recorded value in USD; otherwise, use a reasonable method based on trading data[reference:37].
Yes. The receipt of the airdrop itself is a taxable event, regardless of whether you later sell or exchange the cryptocurrency[reference:38].
You do not have income until you gain dominion and control. If the exchange later credits the token to your account and you can trade or withdraw it, that is when you recognize income[reference:39].
Your basis is the amount you included in gross income — the fair market value at the time of receipt[reference:40].
You may need to file an amended return for prior years. Consult a tax professional to determine the best course of action, as penalties and interest may apply[reference:41].
Visit the IRS digital assets page for the latest FAQs, forms, instructions, and revenue rulings. Always verify current rules before filing.