UK Crypto Tax Guide 2026/27: HMRC Rules for Miners

UK tax follows what happened, not the label used by a wallet, pool or exchange. Mining rewards, disposals and business activity must be analysed separately and recorded in pounds sterling.

Five rules to understand first

Mining, staking and some airdrops can produce taxable income. Sales, token swaps, spending and most gifts can be disposals. Moving an asset between wallets you beneficially own is normally not a disposal. GBP values are required even where no sterling changes hands. Detailed records remain the taxpayer's responsibility.

Income Tax, Corporation Tax and Capital Gains Tax

Individuals usually face Capital Gains Tax on investment disposals, although mining receipts can be trading or miscellaneous income. Companies bring profits and chargeable gains into Corporation Tax. A person who frequently buys and sells tokens is not automatically carrying on a financial trade; HMRC describes that outcome for individuals as unusual and fact dependent.

The 2026/27 rates that matter

For gains on assets other than residential property, the official 2026/27 rates are 18% for gains falling within the basic-rate band and 24% above it. The individual annual exempt amount is £3,000. These are not separate crypto rates and the calculation depends on other taxable income and gains.

Mining rewards and later disposals

A reward can be income at its GBP value when received. Keeping it can create a second calculation when it is later sold or swapped. The value already recognised as income is relevant to the later acquisition value, preventing the same amount from being taxed twice as a gain.

What counts as a disposal

A disposal includes sale for money, exchange for another token, payment for goods or services and most gifts. Transfers between wallets owned by the same beneficial owner are normally not disposals. The contractual and beneficial-ownership position matters for DeFi arrangements.

Records and the Cryptoasset Reporting Framework

From 1 January 2026, in-scope UK reporting cryptoasset service providers must perform CARF due diligence and record-keeping, with the first 2026 reports due by 31 May 2027. Third-party reporting does not replace a taxpayer's return or records. Reconcile platform data against wallets, pools and bank entries.

When to obtain advice

Seek qualified advice for companies, sizeable mining operations, cross-border activity, DeFi, lost assets, pooled or jointly owned holdings, non-UK residence, VAT, employment rewards, prior-year errors or any case where ownership and contractual rights are unclear.