Research · UK/EU divergence

UK GDPR vs EU GDPR — the differences post-Brexit

Updated April 2026EU GDPR · UK GDPRPost-Brexit

When the UK left the EU, it retained EU GDPR as UK GDPR. Since then, the two regimes have operated in parallel — sharing the same foundational structure but supervised by different authorities and diverging incrementally. EU organisations transferring data to the UK, and UK organisations processing data of EU individuals, must navigate both frameworks simultaneously.

How to read this guide. This guide explains requirements and expectations derived from EU GDPR 2016/679 and EDPB published guidance. Where we write “EU GDPR requires” we cite the regulation. Where we write “EDPB guidance indicates” we cite regulatory guidance, which is not identical to a statutory obligation. Application of GDPR obligations may vary depending on member state law and supervisory authority interpretation — consult a qualified data protection practitioner familiar with the relevant jurisdiction.

ℹ Research note

This page addresses the EU perspective on UK/EU GDPR divergence. For the UK perspective, see UK GDPR vs EU GDPR on the UK site. Status as at April 2026 — adequacy and regulatory divergences are subject to change.

EU adequacy for the UK

The European Commission renewed its adequacy decision for the UK in December 2025, valid until December 2031. EU organisations can transfer personal data to UK-based processors and controllers without additional transfer mechanisms while the adequacy decision is in force. The adequacy decision is subject to ongoing monitoring and can be suspended if the European Commission concludes that UK data protection law no longer provides essentially equivalent protection to EU GDPR.

Source: EC adequacy decision December 2025; EU GDPR Article 45

Different regulators, different interpretation

UK GDPR is supervised by the ICO; EU GDPR is supervised by national DPAs under EDPB coordination. The EDPB issues binding guidelines that all EU DPAs must follow; the ICO issues its own guidance which may differ. Consent standards, cookie enforcement, legitimate interests interpretation, and transfer mechanism requirements have all seen nuanced differences between ICO and EDPB positions that are growing as the two regimes develop independently.

DUAA 2025 divergences

The UK Data (Use and Access) Act 2025 introduced reforms that are creating growing divergence from EU GDPR: an expanded recognised legitimate interests list with no EU equivalent; reforms to ICO governance and powers; and new smart data sharing infrastructure. These divergences are being monitored by the European Commission as part of the adequacy review process. If divergence reaches a point where the EC concludes equivalent protection can no longer be assumed, the adequacy decision may be suspended, requiring EU organisations to use SCCs or other mechanisms for UK transfers.

Practical implications for EU organisations

EU organisations transferring data to UK service providers, processors, or group entities must ensure the UK adequacy decision remains in force and monitor the EC’s adequacy review. They should maintain contingency SCC-based documentation for UK transfers in case adequacy is suspended. Where UK-based processors are used, the Article 28(3) DPA requirements apply regardless of adequacy — adequacy governs the transfer mechanism, not the processor relationship obligation.

UK organisations’ EU representative obligation

UK organisations that are subject to EU GDPR under Article 3(2) — because they offer goods or services to EU individuals or monitor their behaviour — and that have no EU establishment, must appoint an EU representative under Article 27. The representative must be established in a member state where the data subjects whose data is processed are located. Failure to appoint a required representative is a violation subject to lower-tier fines.

Record this. If processing data of both EU and UK individuals, maintain separate documentation for each regime. Monitor the EC’s adequacy review for the UK and maintain contingency transfer mechanisms. The adequacy decision’s December 2031 expiry date does not mean it cannot be suspended earlier — Schrems I and Schrems II demonstrated that adequacy determinations can be overturned by the CJEU at any time.

Note: application of EU GDPR obligations may vary under member state law. Confirm with a practitioner familiar with the relevant jurisdiction.

Not legal advice. This guide is derived from EU GDPR (Regulation (EU) 2016/679), EDPB published guidelines, and national supervisory authority guidance as at April 2026. Obligations are subject to change. Consult a qualified solicitor or data protection practitioner for advice specific to your organisation.