Crypto Tax in the UK: What HMRC Actually Expects You to Report
The disposals that trigger Capital Gains Tax, the events that count as income instead, and the record-keeping habit that saves a genuinely stressful January.
By Firoz Khan|16 September 2026|Updated 20 September 2026|9 min read
HMRC's starting position is simple and easy to miss: cryptoassets are treated as property, not currency, for tax purposes. That single classification is what generates almost every rule that follows, and it catches out people who assume crypto only becomes HMRC's business once it's converted back into pounds.
The default rule: crypto is property, not currency
Because crypto is property rather than currency, disposing of it can trigger Capital Gains Tax on any profit, in broadly the same way selling a second property or a share portfolio would. That applies whether the disposal happens by selling for pounds, spending it directly, or swapping it for another cryptoasset.
What counts as a disposal, and what doesn't
Selling for currency, spending it on goods or services, swapping one cryptoasset for another, and gifting it to anyone other than a spouse or civil partner all count as disposals for CGT purposes, even when no pounds ever land in a bank account. Moving your own crypto between your own wallets is not a disposal. Buying crypto in the first place is not a taxable event either, only disposing of it is.
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When it's income tax instead of capital gains
Staking rewards, mining rewards, airdrops and DeFi yield are generally treated as miscellaneous or trading income at the point you receive them, taxed at your normal income tax rate on their value at that moment. If you later dispose of that same asset for a different price, a second, separate calculation applies for Capital Gains Tax on whatever it's gained or lost since you received it.
The numbers for the current tax year
The annual CGT exempt amount is £3,000 for 2025/26, well down from the £12,300 exemption of a few years earlier, and gains above that are taxed at 18% for basic rate taxpayers and 24% for higher and additional rate taxpayers on crypto gains. Income-tax-triggering events, staking, mining, airdrops, are taxed at your normal income tax band instead.
Why HMRC already has more visibility than people assume
UK-registered exchanges share customer transaction data with HMRC under existing data-sharing arrangements, and international cooperation on cryptoasset reporting has been expanding steadily. Treating unreported gains as invisible because they never touched a UK bank account is an increasingly poor assumption.
The record-keeping habit that actually prevents a bad January
Note the date, the GBP value at the time, and the nature of every disposal and every income-triggering event as it happens, not months later. Reconstructing a year of trading activity from memory and scattered exchange statements at Self Assessment deadline is exactly the situation that turns a manageable tax return into a genuinely stressful one.
A reminder
The FCA risk warning still applies to higher-risk crypto content. Always assess how much risk you are willing to take before buying.
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