Millions of UK cryptocurrency holders will soon be required to disclose their personal details to digital asset platforms, as HM Revenue & Customs (HMRC) rolls out a sweeping new crackdown on tax avoidance in the sector.
From 1 January 2026, crypto exchanges and marketplaces will be obliged to collect and report information on users and transactions to HMRC as part of a coordinated global effort to improve tax transparency and combat non-compliance in the digital economy.
The rules will apply to both individuals and businesses engaged in buying and selling cryptoassets, and mark the latest expansion of HMRC’s digital surveillance powers following the introduction of the so-called “side hustle tax” on online sellers using platforms such as Airbnb, Vinted and Etsy.
Recent data from the Financial Conduct Authority suggests that around 12 per cent of UK adults – more than six million people – now hold some form of cryptocurrency.
Under the new regime, individuals will need to supply their name, date of birth, home address, country of residence, and – if based in the UK – their National Insurance number or Unique Taxpayer Reference (UTR). Overseas investors will need to provide their tax identification number and the issuing country.
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