For a long time, cryptocurrency has felt like it exists just outside the reach of HMRC. No PAYE deductions, no automatic reporting, no obvious paper trail. That perception is about to be tested.
From 2027, crypto asset service providers, including exchanges and trading platforms, will be required to report detailed user transaction data directly to HMRC. In this blog, Lee Bradley, Tax Partner at Bevan Buckland, looks at what this change means for anyone holding or trading cryptocurrency, why the timing of any disclosure matters more than most people realise, and the steps worth taking now.
Why HMRC Is Increasing Its Focus on Crypto
Crypto gains and income have always been taxable. Selling, swapping one token for another, spending crypto directly, staking, mining: these can all give rise to Capital Gains Tax or Income Tax. The rules aren’t new. HMRC’s ability to enforce them is.
Until now, HMRC has relied largely on voluntary compliance and the occasional nudge letter, a fairly blunt approach that has left plenty of scope for smaller or older transactions to slip through the net, whether through oversight, confusion over what needed to be reported, or simply not realising the rules applied.
The new reporting requirements close that gap. Once exchanges start sharing transaction data directly with HMRC, checking a tax return against what a platform has reported becomes a simple exercise rather than a resource-intensive investigation. HMRC is also making increasing use of artificial intelligence and data analytics to process third-party data of this kind, which means discrepancies are more likely to be flagged automatically rather than relying on manual review. Crypto is being brought into line with the level of oversight already applied to bank accounts, investment platforms and property sales.
Areas Crypto Investors Should Review
With that shift on the horizon, it’s worth taking stock of your position now. Areas we’d suggest reviewing include:
- Historic disposals and swaps – whether gains from selling crypto, or exchanging one token for another, have been reported correctly in previous tax years. Token-for-token swaps are a common blind spot, as many investors don’t realise these count as disposals in their own right.
- Staking, mining and airdrop income –whether this has been declared and treated correctly as income rather than misclassified as a capital gain.
- Overseas exchanges and wallets – whether platforms based outside the UK have been factored into your overall position, particularly where records are fragmented across several providers.
- Record-keeping – whether transaction histories and cost bases are in good enough shape to withstand scrutiny if HMRC comes asking.
- Voluntary disclosure options – understanding the best route to correct any gaps before HMRC identifies the issue independently.
Why the Timing of Disclosure Matters
This last point deserves the most attention, because it has the biggest bearing on how a case actually plays out. HMRC sets out the relevant framework in its compliance factsheet CC/FS7A, and the rules apply directly to Capital Gains Tax, the relevant head of tax for most crypto disposals.
Come forward before HMRC contacts you, and you’re making what’s known as an unprompted disclosure. Wait for HMRC to make contact first, whether that’s a nudge letter or something more formal, and it becomes prompted instead. The gap between the two is significant:
| Behaviour | Unprompted disclosure | Prompted disclosure |
| Careless | 0% to 30% | 15% to 30% |
| Deliberate | 20% to 70% | 35% to 70% |
| Deliberate and concealed | 30% to 100% | 50% to 100% |
Leave it for HMRC to uncover through its own investigation, and you’re assessed at the top of whichever range applies, with no credit for coming forward voluntarily. For a deliberate and concealed inaccuracy, the full 100% is very much in play.
These ranges aren’t necessarily the final word. HMRC gives further credit for the quality of a disclosure, based on how much a taxpayer tells them, how much they help, and how readily they give access to records. The catch is speed: if it’s taken three years or more to disclose, HMRC typically caps how far that additional reduction can go.
The practical upshot: getting ahead of HMRC is very likely to be the cheaper path, and the sooner that happens, the more scope there is to bring the penalty down further still.
Preparing for Greater Scrutiny – What should my next steps be?
The direction of travel is clear, and it favours those who act rather than wait. Investors who take stock now, close any gaps in their records, and correct historic positions where needed will be in a far stronger position than those who leave it to chance. A proactive review doesn’t just reduce risk, it also means any conversation with HMRC happens on your terms, not theirs.
If you would like to discuss your crypto tax position, historic disclosures, or the upcoming reporting changes, our specialist team can help. Please get in touch by emailing mail@bevanbuckland.co.uk or by calling 01792 410100 to find out more.
