Assimilated law is the name given to retained EU law which remains in force after the end of 2023. For further information, see Practice Note: Assimilated law. This Practice Note provides guidance on an individual’s rights as a data subject in the employment context. It reflects the UK GDPR regime, and legislative links are to Assimilated Regulation (EU) 2016/679, UK General Data Protection Regulation (UK GDPR) and Data Protection Act 2018 (DPA 2018), unless expressly stated otherwise. It takes into account provisions of the Data (Use and Access) Act 2025 (DUAA 2025) in force as at 5 February 2026 (see Practice Note: Data (Use and Access) Act 2025—employment implications). Updated guidance from the Information Commissioner’s Office (ICO) is still awaited. For an overview of the key themes of Assimilated Regulation (EU) 2016/679, UK GDPR and DPA 2018 and guidance on particular issues of relevance to employment lawyers, see Practice Notes: • The UK GDPR and DPA 2018: key data protection issues for employment lawyers, and • The UK GDPR and DPA 2018: lawful processing of