Digital Transformation: A Stepping Stone to AI Transformation?

Introduction - The legal sector at a turning point

The UK legal sector is entering 2026 with artificial intelligence moving from experimentation to everyday infrastructure. Legal Futures, citing LEAP’s Profitability in Law: Global Report 2026, reports that 62% of UK practitioners are active, regular users of integrated AI, while Accurate Legal Billing highlights a projected £2.4bn productivity opportunity from AI-enabled legal tools if firms can combine AI with trusted data, secure systems and responsible governance.

This article explores the legal technology trends that matter most for UK law firms in 2026: digital transformation, agentic AI, legal data management, ethical walls, cybersecurity, cloud-native infrastructure and the client experience. It also explains how OneAdvanced’s legal software and legal technology solutions can help firms adopt AI responsibly while strengthening compliance and operational resilience.

Introducing our legal ‘Sector Brains’

At OneAdvanced, our legal technology thought leaders - known internally as ‘Sector Brains’ - combine product expertise, sector insight and hands-on experience with law firms to help legal practices anticipate what is coming next.

Doug Hargrove
Doug Hargrove is Senior Vice President of Legal and Professional Services at OneAdvanced. He brings extensive experience in legal technology, operational transformation and the practical adoption of software across UK and Irish law firms.

Emma Hatto
Emma Hatto is Head of Legal Technology Products at OneAdvanced. With more than a decade of experience working with and within law firms, Emma focuses on helping firms translate product capability into better workflows, stronger data discipline and improved client outcomes.

Lewis Renfrew
Lewis Renfrew is a Senior Technology Consultant at OneAdvanced. He specialises in solution configuration, legal software implementation and helping firms build technology stacks that can support responsible AI adoption.

The state of digital transformation in UK law firms

Digital transformation remains the foundation for AI transformation. According to OneAdvanced’s Legal Trends Report 2025, as reported by LPM Magazine, 60% of law firms planned to upgrade digital systems, 42% were adopting cloud applications and 35% were considering hybrid models because of data security concerns. AI adoption was building, but only 10% of firms had fully integrated AI, with a further 35% beginning implementation.

Lewis Renfrew explains why this matters: ‘The legal sector recognised the value of digital transformation decades ago. Now, it’s about more than just keeping up - it’s about staying ahead. Your basic digital approach, especially around data, is crucial for enabling successful AI transformation. We can help with that.’

For many firms, the biggest obstacles are not simply budget or appetite. The Law Society’s guidance on digital transformation in UK law firms highlights the sector’s move from analogue processes to digital workflows, while OneAdvanced’s 2025 research points to legacy systems, fragmented matter data, inconsistent processes and cultural resistance as barriers to progress. Firms that modernise their practice management systems, document workflows and reporting foundations now will be better placed to deploy AI safely and productively in 2026.

The critical legal technology trends in 2026

1. AI moves from Pilot to infrastructure

In the UK, AI in the legal sector is no longer limited to innovation teams or isolated experiments. Legal Futures’ coverage of LEAP’s 2026 global legal report found that UK legal professionals lead international peers in AI usage frequency, training quality and confidence, with document review and analysis among the leading use cases. The next phase is integration: embedding AI into the systems lawyers already use, with appropriate review, supervision and audit trails.

2. Agentic AI: From answering questions to taking action

Agentic AI represents a shift from tools that simply generate answers to systems that can complete defined tasks across workflows. Legal Futures’ 2026 legal tech outlook and Summize’s 2026 legal tech trends both identify agentic AI and smarter workflows as major developments for the year ahead. In legal practice, that could mean initiating a file review, checking whether key matter documents are present, surfacing compliance gaps, preparing a draft action list or routing exceptions to the right person. The opportunity is significant, but the governance burden is higher: firms need clear permissions, human oversight and defensible records of what an AI agent has done.

3. Data governance: The ‘garbage in, garbage out’ imperative

Emma Hatto shares her insights: ‘AI’s capabilities extend beyond simple automation; it looks set to bring enhancements in data analysis, predictive analytics and decision-making processes.’ She sees benefits around data analysis at impressive scale: ‘This enables law firms to analyse vast amounts of data quickly and accurately, providing insights that were simply unattainable. This and new ways to interact with clients could be powerful - they could change the way law firms do business, but there are risks.’

‘The principle of ‘garbage in, garbage out’ is critical when leveraging AI in legal practice,’ says Emma. ‘High-quality curated data is essential for AI to deliver accurate and valuable insights for your business. Law firms must get serious about data curation. With data pollution on the rise and questionable synthetic data being used to train models, relying on publicly available AI can lead to flawed outcomes. Your own data will be the source of truth going forward, making it imperative to invest in proper data management practices now.’

In 2026, data management for law firms cannot be treated as a back-office concern. Poorly coded matters, incomplete client records, inconsistent document naming and unmanaged access permissions all reduce the quality of AI outputs. They also increase data protection risk, especially where personal, financial, health or official document data is involved - a risk underscored by NetDocuments’ analysis of ICO data, which found that the most common breached categories included personal, economic and financial, health and official document data.

4. Ethical walls and compliance in an AI world

‘There are going to be many subtle effects from AI, especially on the legal sector,’ says Lewis Renfrew. ‘Let’s look at just one: the issue of ethical walls. As AI advances, with multiple cloud set-ups and different models in play, law firms may need to rethink their approach to ethical walls and database management. These systems, which prevent conflicts of interest and ensure confidentiality, must evolve to integrate AI responsibly.’

Lewis adds: ‘The impact of AI on data is significant. It could blur compliance in complex, difficult-to-anticipate ways. Law firms need to anticipate where new digital ethical walls may need to be built into their technology stack.’

This is becoming more important as AI tools interact with matter data, knowledge bases, document stores and client communications. Ethical walls for legal AI should define which data an AI tool can access, which users can trigger it, how outputs are reviewed and how exceptions are logged. Firms should also map AI use against SRA expectations on governance, confidentiality, supervision and acting in clients’ best interests, while considering EU AI Act implications where legal AI systems, clients or operations fall within EU-facing obligations.

5. Cybersecurity: The fastest-growing risk for UK law firms

Cyber threats continue to rise, and law firms remain attractive targets because they hold sensitive client, commercial and personal information. NetDocuments’ analysis of ICO data found that UK legal sector data breaches increased by 39% between Q3 2023 and Q2 2024, with 2,284 cases reported and data relating to 7.9 million people compromised. External breaches rose to half of all incidents, while phishing accounted for 56% of external attacks.

Doug Hargrove summarises the trust issue clearly: ‘Cybersecurity is not just about compliance; it’s about trust. Law firms must safeguard their clients’ data to maintain their reputation and client trust.' LexisNexis’ 2025 cybersecurity research similarly frames legal cyber risk as a client-trust issue, with lawyers concerned about breaches affecting confidentiality and compliance. In practice, that means cybersecurity for legal tech must be built into AI adoption plans from the start, not bolted on later.

6. Client experience: Technology as a competitive differentiator

Client expectations continue to evolve, with greater demand for transparency, efficiency and personalised legal services. Doug notes: ‘Technology empowers law firms to offer more personalised and responsive services, which is increasingly what clients expect.’

Clio’s UK research points to strong interest in client acquisition, engagement tools and more transparent billing models. Its 2026 UK and Ireland Legal Insights Report also highlights that clients weigh reputation, experience and communication alongside price. For firms, this means the client experience is becoming a technology strategy issue: faster onboarding, clearer communication, client portals, digital signatures and predictable pricing all influence how clients choose and stay with a firm.

7. Cloud-native infrastructure: The backbone of modern legal practice

Cloud-native infrastructure gives firms the scalability, accessibility and integration capability they need to deploy modern legal software in the UK. OneAdvanced’s 2025 digital transformation research found that cloud technology is already playing a pivotal role, with 42% of law firms adopting cloud applications, while security concerns continue to drive interest in hybrid models. Cloud platforms support hybrid working, real-time collaboration, secure updates and connected workflows, but firms must balance cloud benefits with appropriate controls around data residency, access management, supplier due diligence and business continuity.

The risks and gains of AI in legal practice

Doug Hargrove provides a balanced perspective: ‘AI can revolutionise the delivery of legal services by automating routine tasks and uncovering valuable trends in data that can assist decision making. However, in determining valuable use cases it is important to consider potential biases within AI algorithms, the responsible use of data and the ethical implications of AI decision-making.’

The gains are clear: increased productivity, better knowledge retrieval, faster document workflows, stronger matter visibility and improved client responsiveness. Accurate Legal Billing cites a projected £2.4bn productivity opportunity for UK lawyers in 2026, while Clio’s UK and Ireland research reports that active AI users are seeing faster client response, higher work volumes and improved output quality. The risks are equally real: inaccurate outputs, algorithmic bias, breach of confidentiality, poor supervision, over-reliance on generic tools and unclear accountability when AI supports legal work.

The SRA’s guidance emphasises that firms remain responsible for governance, supervision, confidentiality, record keeping and acting in clients’ best interests when adopting law tech and AI. UK firms with EU clients, EU offices or AI systems placed on the EU market should also consider the EU AI Act’s phased obligations, including transparency duties and the risk classification of systems used in or around legal decision-making.

What does this mean for your firm? - A practical checklist

• Run a data readiness audit: assess matter data quality, document structures, permissions, retention rules and reporting consistency before scaling AI.
• Review ethical walls: map where confidential data sits, who can access it and whether AI tools could unintentionally cross established boundaries.
• Complete a cybersecurity baseline assessment: prioritise phishing resilience, access controls, device security, backup recovery, supplier risk and incident response.
• Create an AI governance policy: define approved tools, prohibited uses, human review requirements, client communication rules and audit trails.
• Plan cloud infrastructure migration carefully: assess data residency, integration requirements, uptime, resilience and vendor support.
• Train people, not just systems: ensure lawyers, compliance teams and support staff understand how to use AI safely and when to escalate risks.

How OneAdvanced helps UK law firms stay ahead

OneAdvanced legal technology helps firms connect people, processes, data and AI through a modern software portfolio built around the needs of legal professionals. IQ for Legal brings together workflows, matter data and intelligent automation so firms can reduce fragmentation, improve visibility and work with greater confidence.

The OneAdvanced File Quality Review Agent and Matter Quality Agent support compliance by automating randomised file reviews, continuously analysing live matters and surfacing risks, gaps and training opportunities. Built on a UK-hosted platform, these legal AI tools are designed to help firms strengthen governance while reducing administrative burden.

Recent investment has also strengthened the OneAdvanced legal proposition, including the New Software Portfolio Launch, flexible legal packages and the Intelligent IT for legal campaign.

With more than 30 years of legal technology expertise, OneAdvanced supports UK and Irish law firms across Practice and Case Management, compliance, productivity, client service and AI transformation in legal practice.

Frequently Asked Questions

What is legal technology and why does it matter for UK law firms?

Legal technology is software and digital infrastructure that supports the delivery, management and growth of legal services. It matters because firms are under pressure to improve productivity, protect sensitive data, meet compliance obligations and deliver a faster, more transparent client experience.

What is the difference between digital transformation and AI transformation in legal?

Digital transformation modernises systems, workflows and data foundations. AI transformation builds on that foundation by using AI to analyse information, automate tasks and support decision-making. Without strong digital foundations, AI outputs are less reliable and harder to govern.

What are ethical walls in law, and how does AI affect them?

Ethical walls are controls that prevent people from accessing information where there is a conflict of interest or confidentiality risk. AI affects them because tools may search, summarise or learn from data across systems. Firms need to ensure AI access follows the same boundaries as people, with clear permissions and audit trails.

What are the most important legal technology trends for UK law firms in 2026?

The most important legal technology trends for UK firms to watch are AI moving into core infrastructure, agentic AI, stronger data governance, AI-ready ethical walls, cybersecurity, client experience technology and cloud-native platforms - themes reflected across Legal Futures, Summize, Clio UK, NetDocuments and OneAdvanced 2026/2025 trend research.

Is AI safe for use in UK law firms?

AI can be safe when firms apply the right controls: approved tools, human review, confidentiality safeguards, access permissions, supplier due diligence, training and governance. It becomes risky when staff use unmanaged tools, upload confidential data without approval or rely on outputs without professional supervision.

How does OneAdvanced help UK law firms adopt AI responsibly?

OneAdvanced helps firms adopt AI responsibly by combining legal-sector expertise with connected software, UK-hosted services and AI-powered compliance agents. IQ for Legal is designed to bring together matter data, workflows and intelligent automation so firms can improve productivity while maintaining trust, control and compliance.

Conclusion: Prepare now for the next era of legal technology

The legal technology trends of 2026 point in one direction: firms that combine trusted data, secure infrastructure, responsible AI governance and client-focused digital services will be best placed to compete. AI is powerful, but it depends on the foundations around it. The firms that invest in those foundations now will be able to move faster, manage risk more effectively and deliver better client outcomes.

To explore how OneAdvanced can support your firm’s digital and AI transformation, book a demo or contact our experts today.