Navigating the UK's Data (Use and Access) Act 2025: A Guide for Builders

By Krapton Engineering · Reviewed by a senior engineer · Last updated 24 Sept 2026

The digital economy thrives on data, yet its responsible use is under increasing scrutiny. In the UK, a significant shift is underway with the introduction of the Data (Use and Access) Act 2025, a landmark piece of legislation designed to unlock the power of data for innovation while strengthening consumer rights. For UK business owners, founders, CTOs, and product leaders, understanding this Act isn't just about compliance; it's about strategising for the future of data-driven product development.

TL;DR: The Data (Use and Access) Act 2025 mandates greater data portability and sharing across sectors in the UK, building on principles seen in Open Banking. UK businesses must prepare for architectural changes, enhanced consent management, and new opportunities to build innovative, compliant data products, or risk falling behind.

Key takeaways

• The Data (Use and Access) Act 2025 is distinct from UK GDPR, focusing on enabling secure and consented data sharing for innovation and consumer benefit.
• Businesses must prepare for new obligations around data portability, access interfaces, and robust consent mechanisms.
• API-first architecture, granular data governance, and privacy-enhancing technologies will become critical for compliance and competitive advantage.
• The Act will foster new 'Smart Data' schemes, similar to Open Banking, creating opportunities for novel data-driven products and services.
• Proactive engagement with the Act's principles now can position UK organisations to leverage data as a strategic asset, rather than a compliance burden.

The UK's Evolving Data Landscape: Beyond GDPR

For years, the conversation around data in the UK has largely revolved around the UK General Data Protection Regulation (UK GDPR) and the Data Protection Act 2018, both primarily focused on data privacy and protection. While these remain foundational, the Data (Use and Access) Act 2025 marks a strategic pivot towards facilitating the secure and responsible sharing and use of data to drive innovation, enhance competition, and empower consumers. It's about moving from simply protecting data to actively unlocking its economic and social value.

This new legislation aims to establish a framework for 'Smart Data' schemes, allowing consumers and businesses to securely share their data with third-party providers. Think of it as Open Banking, but for other sectors – energy, telecoms, pensions, and more. This shift has profound implications for how UK businesses design, build, and integrate software products. You can find the full text of the Act on legislation.gov.uk once it receives Royal Assent and is fully enacted.

Understanding the Data (Use and Access) Act UK: Key Provisions for Builders

The core of the Data (Use and Access) Act UK lies in its mandate for enhanced data portability and the creation of secure interfaces for data access. For software builders, this translates into several critical areas:

• Mandated Data Portability: Individuals and businesses will have new rights to request their data be transferred directly to another provider, often requiring standardised API endpoints.
• Smart Data Schemes: The Act provides the legal basis for sector-specific data sharing schemes, where designated participants (data holders) must make data available to authorised third parties (data users) with explicit consent. Open Banking (openbanking.org.uk) serves as the blueprint.
• Consent Management: The Act places a strong emphasis on clear, informed, and granular consent mechanisms, requiring robust systems to capture, manage, and audit user permissions for data sharing.
• Technical Standards: Expect the introduction of technical standards and security profiles for data sharing APIs, ensuring interoperability and security across schemes.
• Data Governance and Security: Participants in Smart Data schemes will face heightened requirements for data governance, security controls, and incident reporting, overseen by regulators like the Information Commissioner's Office (ICO).

For engineering teams, this means designing systems that are inherently open, yet secure and privacy-preserving. Implementing robust API gateways and authentication layers will be paramount:

// Example: API endpoint requiring explicit consent via OAuth2.0 scope
app.get('/api/customer-data', passport.authenticate('bearer', { session: false }),
  (req, res, next) => {
    // Check for 'read:customer_data' scope and user consent
    if (!req.authInfo.scope.includes('read:customer_data') || !userHasConsent(req.user.id, 'customer_data')) {
      return res.status(403).send('Access denied: Insufficient scope or consent.');
    }
    // Proceed to fetch and return data
    res.json({ data: getCustomerData(req.user.id) });
  }
);

This is a simplified illustration, but it highlights the need for explicit checks at the application layer, beyond just network-level security.

Second-Order Consequences for UK Software Development

The Data (Use and Access) Act UK isn't merely a compliance hurdle; it's a catalyst for architectural evolution and new product opportunities:

• Architectural Shifts: Organisations will increasingly favour microservices and event-driven architectures to isolate data domains, manage granular access, and facilitate secure API integrations. Monolithic systems will struggle to adapt to the dynamic consent and data sharing requirements.
• Data Modelling & Governance: Data models must support fine-grained access controls, anonymisation, and pseudonymisation from inception. Robust data lineage and audit trails will be crucial for demonstrating compliance.
• User Experience (UX): Designing intuitive and transparent consent flows will be key. UK users expect clear control over their data, and well-designed interfaces will build trust and increase adoption of data-sharing services. In a recent client engagement for a UK e-commerce platform, we found that designing for explicit consent as a first-class citizen in the user journey avoided significant refactoring later, as it became clear that default opt-ins would not meet future regulatory expectations.
• Security & Compliance: Expect a surge in demand for privacy-enhancing technologies (PETs) and expertise in data security by design. Encryption in transit and at rest, secure multi-party computation, and homomorphic encryption may become more common for sensitive data sharing scenarios.

These shifts mean that choosing a software development agency in the UK with deep expertise in secure API development, cloud-native architectures, and data governance will be more critical than ever.

Strategic Imperatives for UK Business Owners & CTOs

For leadership, the Act demands a proactive strategy:

• Re-evaluate 'Build vs. Buy' for Data Solutions: Consider investing in or integrating with third-party consent management platforms, identity providers, and data governance tools to offload complexity and ensure compliance.
• Invest in Data Infrastructure: Modernise data pipelines, implement data catalogues, and establish robust data quality frameworks. These are no longer optional but foundational for participating in Smart Data schemes.
• Talent & Training: Upskill your engineering and product teams in privacy engineering, API security, and data ethics. Understanding the spirit of the law, not just its letter, is vital.

When NOT to use this approach

While the principles of secure data handling are universal, a full-scale re-architecture specifically for Smart Data schemes might not be immediately necessary for every UK business. Very small businesses with minimal data processing, or those whose core business model does not involve extensive data sharing with third parties, may find that existing UK GDPR compliance measures are sufficient for now. This approach is most effective for SMEs and scale-ups with ambitions to build data-driven products or participate in new digital ecosystems.

Navigating Compliance: The ICO and Enforcement

The Information Commissioner's Office (ICO) will play a crucial role in overseeing compliance with the Data (Use and Access) Act 2025, similar to its role with the Data Protection Act 2018 and PECR. Businesses failing to meet the Act's requirements could face significant penalties, reputational damage, and restrictions on data processing activities. The ICO provides extensive guidance on data protection and privacy, which will likely be expanded to cover the new Act's provisions (ico.org.uk).

It's important to remember that this is general information, not legal advice. Always consult with legal professionals regarding specific compliance obligations. However, engineering teams can proactively design systems that align with the Act's principles. Engaging custom software services can help ensure your products are built with compliance from the ground up.

Practical Steps for UK Engineering Teams

To prepare for the Data (Use and Access) Act UK, engineering teams should consider these practical steps:

1. API-First Design: Prioritise building robust, well-documented, and secure APIs for all data access. Standardise authentication (e.g., OAuth 2.0, OpenID Connect) and authorisation mechanisms.
2. Granular Consent Management: Implement a system that allows users to provide and revoke consent for specific data uses and sharing partners. This system must be auditable.
3. Data Lineage and Audit Trails: Ensure you can track data from its source, through all transformations, to its final use. This is critical for demonstrating compliance and responding to data subject access requests.
4. Security by Design: Integrate security controls at every stage of the software development lifecycle. This includes data encryption, access control policies, and regular security audits.
5. Pilot Smart Data Initiatives: Explore participation in existing or emerging Smart Data schemes. For instance, if you're in financial services, deepening your Open Banking integrations can provide valuable experience. Our team measured the performance overhead of real-time data anonymisation during a financial services project, finding that pre-processing often offered better UX and lower latency than on-demand anonymisation for high-volume data streams.

The implications for AI development for UK businesses are particularly significant. Ethical AI requires transparent data sourcing and usage, making compliance with this Act a foundational element for trustworthy AI systems.

Our prediction (and the uncertainty)

We predict that the Data (Use and Access) Act 2025 will significantly accelerate the adoption of API-first architectures and privacy-enhancing technologies across UK industries. There will be a surge in new data-driven products and services, particularly within regulated sectors, as businesses leverage new data sharing capabilities. The demand for skilled privacy engineers and data governance specialists will intensify.

However, uncertainty remains regarding the speed of implementation of specific Smart Data schemes, the extent of secondary legislation, and the initial industry adoption rates. The effectiveness of enforcement by the ICO and other regulators will also shape the Act's long-term impact. Early movers who invest in robust, compliant data infrastructure are likely to gain a significant competitive edge.

FAQ

What is the main difference between the Data (Use and Access) Act 2025 and UK GDPR?

UK GDPR primarily focuses on protecting personal data and ensuring privacy. The Data (Use and Access) Act 2025, while respecting privacy, focuses on enabling the secure and consented sharing and use of data (both personal and non-personal) to foster innovation and competition across various sectors in the UK digital economy.

How will the Act affect SMEs in the UK?

The Act will present both compliance challenges and commercial opportunities for SMEs. While there will be a need to adapt systems for data portability and consent, SMEs can also leverage new Smart Data schemes to access broader datasets, develop innovative products, and compete more effectively against larger players.

What is a 'Smart Data' scheme?

A 'Smart Data' scheme, as enabled by the Act, is a framework that allows individuals and businesses to securely and easily share their data with authorised third-party providers. Open Banking is a prime example, allowing consumers to share financial data with apps to get better deals or manage finances more effectively.

What should UK businesses do now to prepare for the Act?

Businesses should conduct a data audit, assess their current data sharing practices, and evaluate their API infrastructure. Prioritise robust consent management, invest in secure data architecture, and begin planning for potential participation in sector-specific Smart Data schemes as they emerge.

Turn an industry shift into a shipped product with Krapton

Navigating new regulatory landscapes like the Data (Use and Access) Act 2025 requires deep technical expertise and strategic foresight. Krapton's team of principal-level software engineers can help your UK business understand these shifts and build compliant, innovative data-driven products that deliver real value. Don't let compliance be a blocker; turn it into an opportunity by working with experts. To start a conversation about your next project, send Krapton a project brief today.