Starting from January 1, 2026, UK crypto users will be required to provide their full name, date of birth, address, country of residence, and tax identification number to service providers, or risk a fine of up to £300 (approximately $408).

https://www.gov.uk/guidance/information-youll-need-to-give-to-uk-cryptoasset-service-providers?&utm_source=t.co_hmrcgovuk&utm_medium=social