Why Crypto Is on HMRC's Radar
Cryptoassets have been part of the UK financial landscape for years, but HMRC's ability to see what taxpayers are actually doing with them is changing fast.
If you'd like the full breakdown of HMRC's latest published statistics, including how many people are involved and how much tax is at stake, we've covered that in detail in our piece on HMRC's 240 crypto millionaires.
This article focuses on what the growing scrutiny actually means for you and what to do about it.
A recent BBC report found that HMRC had sent 81,000 letters to taxpayers in the past year, warning them they might owe Capital Gains Tax on cryptoassets they hold.
That's a large number of "nudge" letters, and it reflects HMRC's improving ability to match crypto activity to individual taxpayers, even without full third-party reporting yet in place.
That's about to change further. The UK has begun implementing the Cryptoasset Reporting Framework (CARF), an international standard, from January 2026.
From 2027, HMRC will start receiving data directly from crypto service providers such as exchanges.
In practice, this means HMRC will increasingly be able to cross-check what you've declared against what platforms tell them, rather than relying on taxpayers to come forward first.
