The short answer
The Data (Use and Access) Act 2025 amends the UK GDPR rather than replacing it, with the main data protection provisions in force from 5 February 2026. The practical changes for firms are a statutory stop-the-clock mechanism for subject access requests, a new recognised legitimate interests lawful basis for a closed list of purposes, liberalised automated decision-making, and PECR fines raised to UK GDPR levels. A mandatory complaints process with a 30-day acknowledgement takes effect on 19 June 2026. EU adequacy was renewed in December 2025 and runs to 27 December 2031.
Adequacy is settled, not at risk
The European Commission renewed the UK’s adequacy decisions on 19 December 2025, with a new expiry of 27 December 2031, having reviewed the DUAA reforms before doing so. Commentary written before that date treating adequacy as imminently vulnerable is out of date. The EDPB did flag monitoring concerns in October 2025 around Secretary of State powers, the onward transfer test and regulator independence, so it is kept under review rather than closed permanently.
Subject access requests: what actually changed
Two changes, and both codify practice the ICO already endorsed rather than creating new rights.
Stop the clock. Sections 75 to 77 of the DUA Act allow a controller to pause the response period where it reasonably needs further information from the requester to confirm the scope of the request, for example where it holds a large volume of personal data about them. The clock restarts when the clarification arrives. The previous framework allowed a fixed extension but no pause.
Reasonable and proportionate searches. Section 78 confirms that a controller need only carry out reasonable and proportionate searches, and it came into force on Royal Assent rather than in the February tranche.
The practitioner view is worth noting alongside the headline. Because both provisions largely reflect existing ICO guidance, several firms have assessed the practical impact as limited. What they change is the evidential position: a controller relying on stop-the-clock now points to statute rather than to guidance, which matters in a contested DSAR.
The burden stays with you
The clarification must be reasonably required. A controller pausing the clock on a request it could answer without further information has not extended the deadline, it has missed it. In contentious employment and personal injury matters, where DSARs are frequently deployed tactically, expect that threshold to be tested.
Privilege and DSARs
This is the most practitioner-relevant point in the whole subject, and general data protection commentary rarely covers it.
The Data Protection Act 2018 provides an exemption from the subject access right for information in respect of which a claim to legal professional privilege could be maintained in legal proceedings. For a law firm responding to a DSAR, that exemption is doing a great deal of work.
Three points follow in practice. The exemption attaches to the material rather than to the firm, so it has to be assessed document by document rather than applied wholesale. It covers what would be privileged in proceedings, which is narrower than everything on a client file. And where a DSAR arrives from a former client, the analysis frequently turns on whether privilege belongs to them in the first place.
The DUA Act does not alter this. What it changes is the surrounding mechanics, which means a firm with a solid privilege assessment now also has a statutory basis for seeking clarification before conducting the exercise.
Recognised legitimate interests
A new lawful basis at Article 6(1)(ea), in force from 5 February 2026, covering a closed list of public interest purposes including national security and public security, emergencies, the detection and prevention of crime, safeguarding vulnerable individuals, and democratic engagement.
Where processing falls within the list, the balancing test required for ordinary legitimate interests does not apply. That is the whole benefit, and it is narrower than it first appears.
Two limits matter. The list is closed, so a purpose that merely resembles one on it does not qualify, and ordinary legitimate interests with a documented assessment remains the route. And recognised legitimate interests is explicitly unavailable as a lawful basis for significant automated decisions, which is a trap for anyone assuming the new basis simplifies AI-driven processing.
For most firms the practical effect is limited. The purposes on the list are public-interest activities rather than ordinary commercial processing, and existing legitimate interests assessments remain necessary for almost everything a firm does.
Automated decision-making
This is where genuine divergence from the EU position has occurred.
Previously, solely automated decisions with legal or similarly significant effects could only be made on a narrow set of lawful bases. The DUA Act opens this to the full range, including legitimate interests, provided appropriate safeguards are in place. Special category data remains more protected and cannot be processed this way under the expanded rules.
Employment practitioners should note the consequence: it is now materially easier to use automated decision-making in internal processes in the UK than in the EU. For firms advising employers operating on both sides, that divergence has to be managed rather than assumed away.
The safeguards are the condition of the liberalisation. Human oversight needs to be real and documented, not asserted, and a firm auditing a client’s automated systems should be looking for evidence that a human can and does alter outcomes.
The June 2026 complaints requirement
From 19 June 2026 organisations must have a process enabling data subjects to complain directly, with a 30-day acknowledgement requirement.
This is an operational obligation rather than a policy statement, and it is the deadline most firms have not built for. What it requires in practice:
- A published complaints procedure that a data subject can find and use
- A named owner responsible for handling complaints
- A complaints log, maintained separately from subject access request tracking
- Acknowledgement within 30 days, and substantive response without undue delay
- Response templates prepared in advance rather than drafted under pressure
The policy intention is to divert complaints from the ICO by requiring controllers to address them first. The practical consequence for firms is a second complaints channel operating alongside the existing client complaints process required by the SRA, and the two need to be distinguishable to staff receiving them.
Transfers and the Data Protection Test
The terminology changed and the substance moved slightly.
The “Data Protection Test” replaces the language of adequacy decisions, with approved countries designated by regulation, and the terminology of transfer risk or impact assessments has been revised alongside it. The test asks whether protection in the destination is not materially lower than under the UK regime, which is a different formulation from the EU’s essentially equivalent standard.
The practical question for firms is not whether this jeopardises adequacy, since that was renewed in December 2025 to 2031. It is whether a firm’s transfer documentation uses current terminology and reflects the current test. Assessments drafted before February 2026 use language the regime no longer employs.
Where a firm handles EEA-linked data, maintaining the stricter standard remains prudent. The EDPB’s October 2025 opinions supported renewal while flagging monitoring concerns, so the position is settled for now rather than settled permanently.
Firms as controllers
Most coverage of this subject addresses solicitors advising clients. Firms are themselves controllers of unusually sensitive material, and the obligations land on them directly.
Alongside the DSAR and complaints requirements above, the February 2026 tranche strengthened the ICO’s investigatory powers. It can now compel a witness such as a manager or employee to attend an interview, with giving a false statement being an offence, and can require production of specific documents including data protection impact assessments through an information notice.
That changes what a privacy programme has to be. A firm asked to produce a specific DPIA has either done it or has not, and the ability to point to a policy is no longer the answer. Breach notification obligations are covered separately in our guide to cybersecurity duties for solicitors, and the wider digital law changes in our guide to what changed in 2026.
The ICO has said it is taking a proportionate and supportive approach as the new provisions come into force, which is an opportunity to get documentation in order rather than a reason to defer it.
Compliance actions arising
- Update DSAR workflows to incorporate stop-the-clock, and record why clarification was reasonably required
- Confirm your privilege assessment process for DSARs is document-by-document
- Build and publish a data protection complaints procedure before 19 June 2026
- Appoint a complaints owner and start a complaints log
- Review ROPA and lawful bases against recognised legitimate interests, and check none are being used for automated decisions
- Audit automated decision-making for documented human oversight
- Refresh transfer assessments to use current terminology and the Data Protection Test
- Confirm DPIAs exist and can be produced on demand
Frequently asked questions
When did the Data (Use and Access) Act 2025 take effect?
It received Royal Assent on 19 June 2025 and has been commenced in phases. The main data protection provisions, including recognised legitimate interests, the new automated decision-making framework, DSAR stop-the-clock and the PECR fine increase, came into force on 5 February 2026.
Is UK adequacy at risk?
Not currently. The European Commission renewed the UK’s adequacy decisions on 19 December 2025, running to 27 December 2031, having reviewed the DUAA reforms first. The EDPB supported renewal while flagging monitoring concerns around Secretary of State powers, the onward transfer test and regulator independence.
How does the DSAR stop-the-clock mechanism work?
A controller can pause the response period where it reasonably needs further information from the requester to confirm the scope of the request. The clock restarts when clarification is received. The burden remains on the controller to show the clarification was reasonably required.
Does legal professional privilege exempt material from a DSAR?
The Data Protection Act 2018 provides an exemption for information in respect of which a claim to legal professional privilege could be maintained in legal proceedings. It attaches to the material rather than the firm, so it must be assessed document by document rather than applied to a file wholesale.
What are recognised legitimate interests?
A new lawful basis at Article 6(1)(ea) covering a closed list of public interest purposes including national security, emergencies, crime prevention and detection, safeguarding vulnerable individuals and democratic engagement. No balancing test is required, but the basis cannot be used for significant automated decisions.
What must organisations do by 19 June 2026?
Have a process allowing data subjects to complain directly, with a 30-day acknowledgement. In practice that means a published procedure, a named complaints owner, a complaints log and prepared response templates.
The key points
- Adequacy is renewed to 2031: the Commission reviewed the DUAA before deciding
- Stop-the-clock is statutory now: but the clarification must be reasonably required
- Privilege still governs DSARs at law firms: assessed document by document
- Recognised legitimate interests is narrow: closed list, and barred for automated decisions
- 19 June 2026 needs a working process: not a policy, with a named owner and a log
The practical takeaway
The DUA Act relaxes several requirements and tightens the evidential expectations around them. Stop-the-clock helps only if you can show clarification was needed; liberalised automated decision-making helps only if the safeguards are documented; recognised legitimate interests helps only for a closed list of purposes.
For firms the immediate deadline is 19 June 2026 and the immediate gap is documentation. The ICO can now demand a specific DPIA, and a firm that cannot produce one has answered the question.