Cómo declarar criptomonedas en Reino Unido
In the UK, cryptocurrencies are subject to Capital Gains Tax when sold, exchanged, or spent, with an annual exemption of £3,000 and specific cost-pooling rules.
Quick Tax Summary
- Tax type
- Capital Gains Tax
- Tipo aplicable
- 18% or 24% depending on your income tax band
- Tax-exempt minimum
- Annual Exempt Amount of £3,000
- Crypto-to-crypto
- Yes, each exchange is a disposal
- Staking y recompensas
- Income Tax at the time of receipt
- Losses
- Offsetable and indefinitely transferable if declared
- Filing deadline
- January 31st of the year following the end of the tax year (April 5th)
- Formularios
- Self Assessment SA100 and SA108 supplementary pages
- Sanciones
- £100 for late filing and up to 100% of the tax due in severe cases
- Autoridad fiscal
- HM Revenue & Customs (HMRC)
HMRC's pooling rules
HMRC requires all units of the same crypto asset to be grouped into a 'section 104 pool' with an average cost. Additionally, there are two special rules: the same-day rule and the 30-day bed-and-breakfasting rule, which prevent artificial sales and repurchases.
The result is that you cannot choose which units you sell: the calculation follows the order set by the rule, starting with purchases made on the same day.
Staking, airdrops, and mining
Staking rewards, airdrops received in exchange for an action, and mining income are taxed as income at the time of receipt, at Income Tax rates.
When you later sell those coins, the difference from the value declared as income generates a gain or loss subject to CGT.
Before filing: have your history in order
The first step to a proper tax declaration is to download the complete transaction history from each platform you use. MiCA-licensed exchanges often provide ready-to-use annual reports, which significantly simplifies the filing process.
See exchanges with MiCA licenseFrequently Asked Questions
Other countries in the same region · Europe
This guide provides general information and does not constitute tax advice. Rules change frequently: always confirm details with your country's tax authority or a tax advisor.