Crypto Hard Fork Taxes in 2026
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A crypto hard fork is not always taxable.
Tax usually depends on whether you receive new crypto that you also control.
If a hard fork is followed by an airdrop and you control the new tokens, the IRS treats them as ordinary income.
Why trust our crypto tax experts
Crypto hard forks are taxed based on what you actually receive. If a fork doesn't give you new tokens, you have nothing to report. If you receive new tokens and have control over them, you have ordinary income equal to their fair market value.
Cryptocurrency forks
A cryptocurrency fork occurs when developers or a community change the rules of a blockchain network. Some forks split the network into two chains, but many do not.
Forks often happen when stakeholders disagree on governance issues, want to introduce new features, or need to fix security vulnerabilities. This process can lead to both “soft forks” and “hard forks,” each with its own technical and tax considerations.
What is a hard fork?
A hard fork in crypto is a major protocol update that makes previously invalid blocks (or transactions) valid or vice versa. Because the new rules are not backward-compatible, nodes running the old software can't follow the upgraded chain. If the whole network upgrades, it continues as a single chain. If some participants keep running the old rules, the chain splits into two, each with its own token.
A hard fork is a protocol change that can create a new version of a blockchain. A hard fork is not always followed by an airdrop, and you do not always receive new units as a result. For taxes, the key question is whether you actually received new units and had dominion and control over them.
When do hard forks happen?
Hard forks may arise when a blockchain community votes on a significant upgrade or when a central development team decides that the existing protocol must change. Sometimes, these forks resolve contentious debates, such as the well-known disputes in the Bitcoin and Ethereum communities, or address urgent security matters.
In other cases, a hard fork might be planned well in advance to introduce major improvements. A planned upgrade usually does not split the chain because the whole network adopts the new rules. Ethereum's Pectra and Fusaka upgrades in 2025 were both hard forks, and neither created a new token. A split happens when part of the community rejects the change and keeps the old chain running, as when Bitcoin Cash split from Bitcoin in 2017.
Hard forks vs soft forks
A hard fork is not backward-compatible and can create a separate blockchain and a new token, while a soft fork is a protocol change that remains compatible with the existing chain. In a soft fork, nodes running the updated software can still communicate with nodes using the old version, meaning no new chain (and thus no new token) is created. Because a soft fork does not create new tokens, the IRS says it does not result in taxable income.
Crypto hard fork taxes explained
Under current IRS guidance (Rev. Rul. 2019-24), new tokens you receive in an airdrop after a hard fork are taxed as ordinary income based on their fair market value when you gain dominion and control over them, which is generally when the airdrop is recorded on the blockchain.
Later, if you sell, trade, or otherwise dispose of those tokens, you will incur a capital gain or loss. These principles also apply to many airdrops that result from crypto forking events.
Airdrops income example
Imagine you held 15 BTC in your own wallet when Bitcoin Cash (BCH) split from Bitcoin in August 2017. After the split, you still have 15 BTC on the original chain and also hold 15 BCH. Suppose those 15 BCH were worth $4,335 at the time the split was recorded on the blockchain. That $4,335 is treated as ordinary income and taxed at your income tax rate.
Airdrop capital gain example
Continuing the previous scenario, let’s say you later sell your 15 BCH. When you received the BCH, it was worth $4,335 (your cost basis). Five years down the road, its value drops to $1,625. If you sell at $1,625, you would realize a $2,710 capital loss ($4,335 – $1,625). That loss can offset other capital gains you might have, possibly reducing your tax liability.
Pro tip
Use our free crypto tax and profit calculators
How does the IRS tax cryptocurrency forks?
The IRS says that if you receive new tokens after a hard fork, you have ordinary income (Rev. Rul. 2019-24). The amount you report equals the fair market value of the new tokens when you gain dominion and control over them, meaning you can transfer, sell, exchange, or otherwise dispose of them. If you hold your own keys, you generally have dominion and control when the airdrop is recorded on the blockchain, whether or not you ever move the coins. If your coins are on an exchange that doesn't support the new token, you generally have no income until the exchange gives you access. Record the date, time, and value at that point, as they set both your income and your cost basis.
Once you have established your cost basis (i.e., the fair market value at receipt), any subsequent disposal will be taxed according to short-term or long-term capital gains rules. Keep records of when you received the forked tokens, their value, and when you sold them, so you can calculate your capital gains or losses accurately.
How do I report hard fork income?
Report the fair market value of forked tokens on Schedule 1 (Form 1040), line 8v, "Digital assets received as ordinary income not reported elsewhere," for the year you gain dominion and control over them. You also check "Yes" to the digital asset question on Form 1040.
When you later sell or trade the forked tokens, report the sale on Form 8949, using the income amount you reported as your cost basis. Starting with the 2025 tax year, digital asset sales go in box G, H, or I (short-term) or box J, K, or L (long-term), not box C or F. If your broker sent a Form 1099-DA showing proceeds but no basis, check box H or K and enter your basis yourself. If you only held the original coins and never received new tokens, you have nothing to report for the fork itself.
Crypto hard fork taxes FAQs
What happens to my crypto in a hard fork?
Is an airdrop of new cryptocurrency following a hard fork tax exempt?
How is crypto trading taxed?
What is the cost basis of a hard fork?
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