The UK government is holding a consultation period for the introduction of digital ID to access government services (initially).

This consultation sets out the Cabinet Office’s proposal to enable data sharing between specified public authorities to support delivery of identity verification services to individuals and households.

What data will be processed?

• user’s full name;
• date of birth;
• home address;
• email address;
• photographic images;
• various identifiers such as passport number or driving licence number;
• attributes held by government departments necessary for verifying the identity of an individual;
• the outcome of identity checks previously performed on a user; and
• transactional data, for example, income

Other data items may be processed as identity verification services develop.

https://www.gov.uk/government/consultations/draft-legislation-to-help-more-people-prove-their-identity-online/consultation-on-draft-legislation-to-support-identity-verification