HMRC Issues 81,000 Crypto Tax Warnings for Unpaid Bull Run Gains

HMRC Intensifies Crypto Tax Scrutiny, Sends Over 81,000 Warning Letters

HM Revenue and Customs (HMRC) has significantly ramped up its oversight of UK cryptocurrency users in the 2025-2026 financial year, reportedly dispatching more than 81,000 warning letters to individuals suspected of having unpaid tax liabilities. This figure, revealed by the BBC following a review of a freedom of information request, represents a nearly threefold increase from the 27,714 letters issued in 2024.

HMRC believes a substantial portion of the undeclared tax stems from gains realized during the cryptocurrency bull market that spanned from 2022 to 2025. The tax authority has reminded recipients that tax obligations can be triggered by various actions, including selling, gifting, exchanging, or using cryptocurrency for purchases.

Failure to comply with tax regulations can lead to penalties equivalent to up to 100% of the owed tax, in addition to accrued interest. Offshore transfers, in particular, may carry more severe repercussions.

This intensified crackdown is poised to broaden further with HMRC set to acquire new powers in 2027. Under these forthcoming regulations, offshore firms will be mandated to provide customer information to the UK tax authority. HMRC estimates this measure could generate an additional £315 million (approximately $430 million) by 2030.

Neela Chauhan, a partner at accounting firm UHY Hacker Young, commented to the BBC that many cryptocurrency traders are young and lack prior experience navigating HMRC procedures. She noted that some operate under the misconception that the agency has limited insight into their digital asset activities. Chauhan also suggested that authorities suspect many investors of tax evasion and anticipates that identifying unpaid liabilities among wealthier holders will become considerably easier once the new powers are enacted.

Banking Access Emerges as a Major Industry Concern

While HMRC tightens its regulatory grip, access to banking services is becoming a significant challenge for the cryptocurrency industry. Earlier this month, Parliament’s Crypto and Digital Assets All-Party Parliamentary Group formally requested explanations from the chief executives of major UK banks regarding their dealings with cryptocurrency businesses. Labour MP Gurinder Singh Josan and Lord Vaizey of Didcot initiated this inquiry following persistent complaints from firms struggling to open bank accounts and reports of payment restrictions.

The parliamentary group has questioned banks on their policies, transaction limits, the rationale behind these decisions, and whether the UK’s upcoming cryptocurrency regulations might influence their approach. While acknowledging the necessity for banks to combat financial crime and protect customers, the MPs emphasized that firms should be assessed based on their individual risk profiles rather than being broadly categorized by their sector. Lord Vaizey described the banking access issues as “an unnecessary piece of friction.”

Research conducted by the UK Cryptoasset Business Council indicates that banks are currently blocking or delaying approximately 40% of attempted transfers to digital asset exchanges.