UK Data Privacy Laws: UK GDPR, DPA 2018 & 2025 Reforms

Independently fact-checked against primary sources (last audited September 30, 2026). · Law checked current as of September 30, 2026. · 41 primary sources cited on this page. How we verify our legal content

UK Data Privacy Laws: UK GDPR, DPA 2018 & 2025 Reforms

Updates

Corrected the PECR cookie exemptions to match Schedule A1 (removing an exemption that does not exist), stated that the Clearview AI ruling confirmed ICO jurisdiction rather than upholding the fine, recorded that TikTok withdrew its appeal and accepted the GBP 12.7 million fine, corrected the recognised legitimate interests provision and the automated decision-making limits, removed a withdrawn EU ePrivacy fine figure, and updated the ICO name, complaints duty, guidance status and IDTA link.

Independently fact-checked against the cited primary sources; governing law re-checked for recent changes

Corrected the Information Commission transition from an expected spring/summer 2026 window to the fixed statutory date of 30 September 2026, per SI 2026/1015 (made 10 September 2026), and added regulation 3's saving provision for acts and legal proceedings already under way. Also corrected the DUAA complaints provisions from an expected mid-2026 commencement to their actual commencement on 19 June 2026 by SI 2026/82, and carried the fixed transition date into the key takeaways and the commencement FAQ.

Added the ICO's 5 August 2026 enforcement notice and reprimand against the Metropolitan Police Service for section 40 DPA 2018 security failures (an unredacted stalking-order disclosure and a group-email data exposure).

Major refresh: added full coverage of the Data (Use and Access) Act 2025, the four-stage phased commencement, recognised legitimate interests, PECR/cookie consent reforms, the ICO-to-Information-Commission transition, EU adequacy renewal to December 2031, and 2025-2026 ICO enforcement actions including Reddit £14.47m fine.

Initial publication covering the UK [GDPR](/world-laws/world-data-privacy-laws) and DPA 2018 framework, ICO powers, and early DUAA coverage.

Sources and References

  1. Data Protection Act 2018(legislation.gov.uk).gov
  2. Data (Use and Access) Act 2025(legislation.gov.uk).gov
  3. UK GDPR Guidance and Resources(ico.org.uk).gov
  4. A Guide to the Data Protection Principles(ico.org.uk).gov
  5. A Guide to Lawful Basis for Processing(ico.org.uk).gov
  6. Special Category Data Rules(ico.org.uk).gov
  7. Individual Rights Under UK GDPR(ico.org.uk).gov
  8. Personal Data Breaches: A Guide(ico.org.uk).gov
  9. Maximum Fine Under UK GDPR and DPA 2018(ico.org.uk).gov
  10. DUAA Data Protection and Privacy Changes(gov.uk).gov
  11. DUAA Plans for Commencement(gov.uk).gov
  12. DUAA Factsheet: UK GDPR and DPA(gov.uk).gov
  13. DUAA Factsheet: ICO Reforms(gov.uk).gov
  14. EU Renews UK Adequacy Decisions(ec.europa.eu).gov
  15. What are standard data protection clauses (the UK IDTA and the Addendum)? (ICO)(ico.org.uk).gov
  16. Data Protection Officers Guidance(ico.org.uk).gov
  17. Data Protection Impact Assessments (DPIAs)(ico.org.uk).gov
  18. ICO Enforcement Action: TikTok(ico.org.uk).gov
  19. ICO Clearview AI Upper Tribunal Judgment(ico.org.uk).gov
  20. Reddit £14.47m Fine for Children Privacy Failures: ICO 2026(ico.org.uk).gov
  21. Data (Use and Access) Act 2025 (Commencement No. 1) Regulations 2025(legislation.gov.uk).gov
  22. Information Commission Non-Executive Member Appointments(apply-for-public-appointment.service.gov.uk).gov
  23. Data (Use and Access) Act 2025 (Commencement No. 2) Regulations 2025 (SI 2025/982)(legislation.gov.uk).gov
  24. Data (Use and Access) Act 2025 (Commencement No. 3 and Transitional and Saving Provisions) Regulations 2025 (SI 2025/996)(legislation.gov.uk).gov
  25. Data (Use and Access) Act 2025 (Commencement No. 4) Regulations 2025 (SI 2025/1213)(legislation.gov.uk).gov
  26. Data (Use and Access) Act 2025 (Commencement No. 5) Regulations 2026 (SI 2026/31)(legislation.gov.uk).gov
  27. ICO, Metropolitan Police Service issued with enforcement notice and reprimand (5 Aug 2026)(ico.org.uk).gov
  28. The Data (Use and Access) Act 2025 (Commencement No. 9 and Transitional and Saving Provisions) Regulations 2026, SI 2026/1015 (C. 83), made 10 September 2026; regulation 2 commences DUAA ss. 117(4)(a), 118 and 119 on 30 September 2026, and regulation 3 makes transitional and saving provision for acts, omissions and legal proceedings of the Information Commissioner(legislation.gov.uk).gov
  29. The Data (Use and Access) Act 2025 (Commencement No. 6 and Transitional and Saving Provisions) Regulations 2026, SI 2026/82, made 29 January 2026; regulation 3 commences DUAA section 103 (complaints by data subjects) and Schedule 10 on 19 June 2026, and regulation 7 limits the new section 164A(3) and (4) duties to complaints received on or after that date(legislation.gov.uk).gov
  30. Data (Use and Access) Act 2025 s.70: lawfulness of processing(legislation.gov.uk).gov
  31. UK GDPR Annex 1: recognised legitimate interests(legislation.gov.uk).gov
  32. UK GDPR Article 6, incl. para 11 examples of legitimate interests(legislation.gov.uk).gov
  33. UK GDPR Article 22B: restrictions on automated decision-making(legislation.gov.uk).gov
  34. UK GDPR Article 22C: safeguards for automated decision-making(legislation.gov.uk).gov
  35. PECR 2003 Schedule A1: exceptions to the consent requirement(legislation.gov.uk).gov
  36. Data Protection Act 2018 s.164A: complaints by data subjects(legislation.gov.uk).gov
  37. Guidance on the use of storage and access technologies (ICO)(ico.org.uk).gov
  38. Automated decision-making guidance, draft updated for the DUAA (ICO)(ico.org.uk).gov
  39. ICO to become the Information Commission on 30 September 2026 (ICO)(ico.org.uk).gov
  40. TikTok withdraws two appeals and accepts GBP 12.7m fine (ICO, 24 September 2026)(ico.org.uk).gov
  41. ePrivacy Regulation procedure 2017/0003(COD): proposal withdrawn (European Parliament Legislative Observatory)(europarl.europa.eu).gov
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