British crypto advocates are taking aim at the country's banks, accusing them of blocking roughly 40% of all crypto-related transactions — a practice they argue undermines the U.K.'s stated ambition to become a leading global crypto hub. The criticism, aired this week, focuses on banks refusing or delaying payments to and from crypto exchanges, often without clear explanation.
The 40% figure
Advocates point to data showing that nearly two in five crypto transactions initiated by U.K. customers are stopped by their banks before they go through. That could include deposits to exchanges, withdrawals, or peer-to-peer transfers tied to digital assets. The exact methodology behind the number isn't public, but those tracking the trend say the rejection rate has climbed over the past year.
Banks typically cite fraud prevention and regulatory uncertainty as reasons. But critics counter that the approach is overly broad and penalizes legitimate users, especially as the U.K. government has been rolling out a friendlier legal framework for crypto firms.
Clash with government policy
The tension is hard to ignore. The U.K. has spent much of 2025 and early 2026 positioning itself as a serious contender for crypto business, with the Financial Conduct Authority launching a tailored registration regime for exchanges and custody providers. Ministers have talked up blockchain innovation and stablecoin regulation.
But if high-street banks — many of which fall under separate prudential regulation — continue to gatekeep access to crypto services, the policy push may ring hollow. “You can't be a global crypto hub if people can't actually move money in and out of exchanges,” one advocate put it bluntly during a panel last week. The remark was not attributed to a specific person in the available facts, but the sentiment is widely echoed.
What users experience
For the average crypto user in the U.K., the blockage often comes without warning. A bank may flag a transfer to a well-known exchange as “high risk” and freeze the payment for hours or days. Some users report being told to justify the transaction in writing, only to have it declined anyway. Others say their bank accounts were closed after repeated crypto-related activity.
The result: some retail investors are turning to peer-to-peer platforms or overseas banking providers, while others simply give up on crypto altogether. That leakage could hurt the very ecosystem the government is trying to build.
What happens next
There's no sign yet that regulators will step in directly. The FCA has issued guidance on crypto marketing and anti-money laundering, but hasn't taken a public stance on banks' transaction-blocking policies. The Treasury has a consultation on digital assets running through August, and advocates say they'll use that window to push for clearer rules forcing banks to justify denials.
For now, the gap between policy ambition and on-the-ground access remains wide. Whether the U.K. can close it — before businesses and talent go elsewhere — is the open question.
