The UK government sent more than 81 000 warning letters to crypto asset holders in the last financial year. Recipients were individuals suspected by authorities of having unpaid taxes.

The scale of the mailing makes tax compliance a noticeable part of the state's engagement with crypto holders. However, the source does not specify how many letters led to tax payments or audits.

Data are based on a Protos briefing, not on the full text of a primary document or independent confirmation. Therefore, campaign details require further verification.