September 30, 2026
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Many UK organisations already have complaints procedures in place, but from June 2026, having a general complaints process may no longer be enough. New legal requirements will require all organisations — regardless of size or sector — to ensure they can receive, acknowledge, investigate, and respond to data protection complaints in a structured and timely way.
For businesses already managing GDPR obligations, the new rules add another practical compliance requirement that should not be left until the last minute.
From 19 June 2026, all UK organisations must have a process for handling data protection complaints under changes introduced by the Data (Use and Access) Act 2025. Organisations must provide a way for individuals to complain, acknowledge complaints within 30 days, investigate concerns without undue delay, and communicate outcomes promptly. The requirement applies to all organisations with no exemptions.
The new rules arise from the Data (Use and Access) Act 2025, which received Royal Assent on 19 June 2025.
The legislation does not replace existing UK data protection law. Instead, it amends elements of the UK GDPR and the Data Protection Act 2018. The reforms are being introduced gradually over a 12-month implementation period.
As part of preparations, the Information Commissioner’s Office (ICO) consulted on how organisations should manage complaints and has now issued guidance confirming how the new requirements will operate.
A key point from the ICO guidance is straightforward: there are no exemptions.
This means the rules apply equally to:
Business size will not remove the obligation.
A data protection complaint may arise whenever an individual is dissatisfied with how their personal data has been handled.
Examples could include:
The scope is broad. Organisations should avoid assuming that only formal GDPR disputes qualify.
In practice, a routine customer concern can quickly become a data protection complaint if personal information handling is involved.
Under the new rules, organisations must:
Individuals must be given a route to raise data protection concerns.
The ICO has clarified that businesses do not need specialist software or a dedicated complaints platform. Existing procedures may be adapted if they adequately capture and process these complaints.
Examples could include:
The important point is functionality rather than technology.
Organisations will need to confirm receipt within 30 days of receiving a complaint.
Businesses without a documented workflow may find this creates practical challenges, particularly where complaints are received through multiple channels.
Organisations must take appropriate steps to review complaints without undue delay.
This includes:
A passive approach may create regulatory risk.
Once reviewed, organisations must inform individuals of the complaint outcome without undue delay. Clear communication and record-keeping will be important if decisions are later scrutinised.
Smaller businesses often assume data protection obligations mainly affect large organisations. The ICO guidance removes any uncertainty.
Even businesses with limited staff and low complaint volumes will need evidence of a functioning process.
For example, a small accountancy practice responding to a Subject Access Request or managing a data breach involving client records could still receive a complaint covered by the rules.
A documented process and staff awareness may become as important as the technology itself.
Rather than waiting until June 2026, organisations may wish to review:
Early preparation may reduce operational disruption later.
Professional firms increasingly handle large volumes of sensitive information, including financial records, payroll data, identification documents and tax information.
In practice, compliance risks often arise not from deliberate misconduct but from weak internal processes. A missed Subject Access Request, delayed response or poorly documented complaint can quickly create regulatory issues.
Many organisations already have complaints procedures. The more important question is whether existing systems specifically address personal data concerns and whether teams understand how to identify them.
Businesses should avoid treating this as a technical legal update. It is an operational process issue.
The introduction of a mandatory data protection complaints process marks another practical development in UK data regulation.
From 19 June 2026, all UK organisations will need a structured method for receiving and handling complaints relating to personal data. There are no exemptions based on size or sector.
Businesses that review procedures early and embed clear processes are likely to be better positioned for compliance and lower risk.
Regulatory requirements continue to evolve and operational processes increasingly sit alongside legal compliance obligations. Reviewing internal systems early can help identify gaps before they become larger issues.
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A Data Protection Complaints Process UK requirement is a legal obligation for organisations to have a structured way to receive, investigate and respond to complaints relating to personal data. From 19 June 2026, all UK organisations must provide a complaint route, acknowledge complaints within 30 days and communicate outcomes without undue delay. The requirement arises from changes introduced under the Data (Use and Access) Act 2025.
A Data Protection Complaints Process UK works by giving individuals a clear route to raise concerns about how their personal information has been handled. Organisations must receive the complaint, acknowledge it within 30 days, investigate appropriately, keep the individual informed and issue an outcome promptly. Existing complaint systems can usually be adapted if they meet these obligations.
Businesses should implement a Data Protection Complaints Process UK procedure well before the 19 June 2026 deadline. Waiting until implementation begins could create compliance risks and operational pressure. Early preparation allows organisations to review policies, train staff, test reporting procedures and identify weaknesses before the new legal requirements become mandatory.
Yes. An existing complaints system can often be used for a Data Protection Complaints Process UK requirement if it properly captures, tracks and manages data protection complaints. The ICO has confirmed there is no obligation to purchase specialist software or create a standalone system. The key requirement is whether the process enables organisations to meet their legal duties effectively.
No. You do not need dedicated software for a Data Protection Complaints Process UK requirement. Organisations may use existing communication channels such as website forms, email inboxes or customer service systems. However, businesses should ensure complaints are monitored, deadlines are tracked and responses are documented to reduce compliance and regulatory risk.
A Data Protection Complaints Process UK is becoming mandatory to improve accountability and give individuals clearer routes for challenging how organisations use personal data. The reforms strengthen practical data rights under UK GDPR and the Data Protection Act framework. The ICO’s guidance confirms there are no exemptions based on organisation size or sector.
The cost of implementing a Data Protection Complaints Process UK varies depending on existing systems and internal resources. Many organisations may only need policy updates, staff training and process changes. Businesses without documented procedures may incur additional compliance costs for legal advice, workflow redesign or software improvements.
Yes. Subject Access Requests frequently trigger Data Protection Complaints Process UK issues. Complaints can arise where individuals believe requests were delayed, incomplete, inaccurate or handled improperly. Businesses should remember that operational failures around access requests can quickly escalate into wider regulatory concerns and potentially attract ICO scrutiny.
Failure to comply with a Data Protection Complaints Process UK requirement may increase regulatory exposure and reputational risk. Poor complaint handling can undermine trust and may lead individuals to escalate matters to the ICO. Organisations with weak processes could also struggle to evidence compliance if investigations or disputes arise later.
Yes. Small businesses are fully affected by Data Protection Complaints Process UK rules because there are no exemptions. Sole traders, SMEs, charities and professional firms are all within scope. A common mistake is assuming GDPR obligations only apply to larger organisations, but the new requirements apply regardless of business size or industry.
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