Cryptoassets are treated as a form of property under UK tax law, not as currency or money.
HM Revenue and Customs (HMRC) has published detailed guidance confirming that cryptoasset tokens are subject to tax in the same way as other chargeable assets. For most individuals who acquire and hold cryptocurrency as an investment, the relevant tax is Capital Gains Tax (CGT), which applies when tokens are disposed of at a profit. For those who receive crypto through employment, mining, staking, lending, or other income-generating activities, Income Tax and National Insurance contributions (NICs) apply instead.
Capital Gains Tax Rules
CGT applies when an individual disposes of cryptoassets and makes a gain.
A disposal includes selling tokens for fiat currency, exchanging one type of cryptoasset for another, using cryptoassets to pay for goods or services, and giving tokens to another person other than a spouse, civil partner, or charity. Simply holding cryptocurrency, regardless of price appreciation, is not a taxable event in the UK.
How CGT is calculated
The gain on a disposal is the difference between the proceeds (or market value where proceeds are not arm’s length) and the allowable cost. Because individuals typically acquire tokens of the same type over multiple transactions at different prices, HMRC requires the use of a pooling system. Each type of token must be grouped into a “pool,” and an average cost per token is maintained for the pool. When tokens are disposed of, the proportionate share of the pooled cost is deducted from the proceeds to calculate the gain.
Two anti-avoidance rules modify the pooling approach:
- Tokens bought on the same day as a disposal are matched against that disposal first (the “same day” rule).
- Tokens acquired within 30 days after a disposal are matched against the disposal next (the “bed and breakfast” rule).
Only after these two matching rules have been applied are remaining tokens matched against the Section 104 pool. Transaction fees paid as part of an acquisition or disposal are an allowable cost. Mining equipment and electricity costs are not deductible from CGT gains.
Capital losses realised in the same tax year are deducted from gains before applying the Annual Exempt Amount. Unused capital losses can be carried forward indefinitely and applied against future gains. Losses must be reported to HMRC to be officially recognised, even if no tax is due in the year the loss arises.
Record keeping
HMRC requires taxpayers to keep separate records for each pool, recording for each transaction the type of tokens, the date, the number of tokens acquired or disposed of, the cumulative pool size, the value in pounds sterling, bank statements, and the pooled cost before and after the transaction. Exchange reports may assist with this but they do not track pooled costs and are not a substitute for the taxpayer’s own records.
Income Tax Rules
Cryptoassets are subject to Income Tax when they are received as a form of income. The most common scenarios are employment income paid in crypto, and income from mining, staking, or lending where the individual is not carrying on a formal trade.
Where an employer pays an employee in cryptoassets, those tokens are treated as “money’s worth.” Exchange tokens such as Bitcoin are classified as readily convertible assets, meaning the employer must operate PAYE on the value of the tokens at the time of payment. The income tax charge is based on the market value of the tokens on the date of receipt. National Insurance contributions also apply. If the tokens received are not readily convertible assets, the employee must report and pay the income tax themselves through self-assessment.
Mining and Staking Treatment
Mining
Where an individual mines cryptocurrency without carrying on a trade, the tokens received are treated as miscellaneous income at the point of receipt. The taxable value is the sterling market value of the tokens on the date they are received.
The £1,000 trading allowance applies to miscellaneous income, including mining receipts below this threshold. Costs of mining cannot be deducted from mining income assessed as miscellaneous income; nor can they be deducted from any CGT gain on a later disposal of the mined tokens.
Where an individual operates mining as a business activity, the activity may constitute a trade. In that case, mining receipts are business income subject to income tax, and trading expenses including equipment, electricity, and maintenance are deductible under normal trading rules.
The mining of tokens as part of a trade also gives rise to CGT on any subsequent disposal, calculated as proceeds less the carrying value in the trade’s accounts.
When mined tokens are later sold or disposed of by a non-trading miner, CGT applies on any gain between the value at which the tokens were assessed to income tax on receipt and the disposal proceeds. This two-stage treatment means careful records must be kept of both the income value and any subsequent movement in value.
Staking
HMRC treats staking rewards received by non-trading individuals as miscellaneous taxable income at the point of receipt, valued at the sterling market value of the tokens on the date of receipt. The same £1,000 allowance and self-assessment thresholds apply as for other miscellaneous income. When staking rewards are later disposed of, CGT applies on any increase in value since the date of receipt.
Where staking is carried on as part of a business trade, the receipts are business income and the disposal of staked assets may fall within the business accounts rather than the personal CGT regime. HMRC’s guidance on DeFi staking and liquidity provision confirms that tokens received from these arrangements are similarly treated as income at the point of receipt, with the precise characterisation depending on the facts and the nature of the DeFi arrangement.
NFT Taxation
NFTs are treated as cryptoassets for UK tax purposes and are subject to the same CGT and income tax principles that apply to other tokens.
An individual who buys an NFT as an investment and later sells it at a profit will be subject to CGT on the gain, calculated as disposal proceeds less acquisition cost. The pooling rules do not apply to NFTs in the same way as fungible tokens, since each NFT is unique, the specific identification of the cost of each NFT is therefore straightforward in most cases.
Where an individual creates and sells NFTs commercially, for example, as a digital artist generating regular sales, the activity constitutes a trade and the proceeds are subject to income tax as trading income. Expenses directly attributable to the creation and sale of NFTs are deductible as trading expenses under normal rules. Royalty income from secondary NFT sales is taxable as it arises, either as trading income or miscellaneous income depending on whether the royalty stream arises from a trade.
HMRC has not issued specific guidance on the VAT treatment of NFTs as of 2026, beyond the general principle that digital supplies to UK consumers are subject to VAT at 20% where the supplier is VAT-registered.
The classification of an NFT as a supply of digital services, goods, or a unique creative work may affect the VAT treatment, and VAT-registered NFT creators should seek specific advice. Record-keeping requirements for NFTs are the same as for other cryptoassets: acquisition cost, date, disposal proceeds, and relevant valuations must all be maintained.
Reporting Requirements
UK taxpayers with capital gains above the Annual Exempt Amount (£3,000 for 2025-26), or with total disposal proceeds exceeding £50,000 in the tax year, must report their crypto gains to HMRC via a Self Assessment tax return.
The UK tax year runs from 6th April to 5th April the following year. Self Assessment returns for the 2024-25 tax year are due by 31 January 2026 for online filers. Taxpayers not already registered for Self Assessment must register by 5 October following the end of the tax year in which the reportable event occurred.
Crypto income must also be reported through Self Assessment where total miscellaneous income exceeds £2,500 or where the individual is already within Self Assessment. All amounts must be converted to pound sterling at the exchange rate on the date of each transaction. HMRC accepts the use of exchange rates from recognised sources, and the consistent application of a reasonable rate is expected.
HMRC requires taxpayers to keep records of each transaction including the type of token, the date, the number of tokens, the sterling value, bank statements, pooled costs, and records of disposal.
These records must be retained for a minimum of five years after the 31 January self-assessment deadline for the relevant tax year (i.e., generally five-plus years from the transaction date). HMRC actively uses data-matching with information received from UK and overseas crypto exchanges as part of its compliance programme.
A specific crypto disclosure facility has been used by HMRC to prompt taxpayers with exchange accounts to check and correct their prior year returns.
Penalties
HMRC applies a structured penalty regime to failures in self-assessment, including non-reporting and underreporting of crypto gains and income.
The penalty rate depends on the taxpayer’s behaviour: careless errors attract a penalty of 0% to 30% of the potential lost revenue; deliberate but not concealed underreporting attracts 20% to 70%; and deliberate and concealed underreporting attracts 30% to 100%.
For offshore matters, the penalty rates are higher, reflecting the greater difficulty of detection.
In addition to behaviour-based penalties, HMRC charges interest on unpaid tax at the statutory rate (currently Bank of England base rate plus 2.5%) from the date the tax was due. Late filing penalties apply separately: a £100 penalty arises immediately on the day after the filing deadline, with daily penalties of £10 per day after three months, and further fixed and percentage penalties after six and twelve months.
Voluntary disclosure through HMRC’s established disclosure facilities significantly reduces the penalty rate, and in some cases can result in suspension or waiver of penalties. Making a full and unprompted disclosure before HMRC opens an investigation is consistently the most favourable approach.
HMRC has made clear that crypto non-compliance is a priority compliance area, and data from domestic and overseas exchanges is being systematically matched against taxpayer records.
