AI for law firms: what UK solicitors can automate in 2026
Short answer
A UK law firm with 5 to 100 staff can automate seven workflows first in 2026: client intake, conflict check preparation, AML document chasing, precedent drafting, precedent search, client updates and time entry drafts, with a solicitor approving each output. The SRA has no AI-specific rules, but its August 2026 warning notice says AI "does not diminish or transfer" a solicitor's responsibilities. One London agency lists builds from £1,500 for an automation and £6,500 for an agent.
Yarigai is a done-for-you AI agency that builds these systems, so read this with that in mind. Every price and figure links to its source below. Read this page as Markdown.
At a glance
| Workflow | What it does | Tools it connects | What stays human |
|---|---|---|---|
| Client intake | Reads enquiries, pulls out parties, matter type and dates, opens a draft matter | Website form, Outlook or Gmail, case management | Deciding whether to act |
| Conflict check preparation | Runs each party name through the conflict search and lists the hits | Case management, client database | The conflict decision (SRA Code 6.1 and 6.2) |
| AML and ID chasing | Requests and chases ID and source of funds documents, files them | ID provider, email, document store | Risk rating, enhanced due diligence, reports to the MLRO |
| Document review | Checks contracts and leases against the firm's checklist, flags exceptions | Document management, Word | Reading the flags and advising |
| Drafting from precedents | Fills the firm's precedent with matter facts and marks each change | Precedent library, Word | Approving the draft |
| Precedent search | Answers staff questions from the firm's own documents, with links | SharePoint, Google Drive, document management | Checking any case law at source |
| Updates and time entries | Drafts client status emails and time entries from the day's work | Case management, Outlook, phone system | Sending the email, confirming each entry |
The "what stays human" column follows the SRA Code of Conduct and the SRA's August 2026 warning notice on AI (sources 1 and 4).
Intake, conflict checks and AML
Intake and conflict preparation are the safest first builds, because the AI gathers facts and a solicitor still makes every decision. A typical intake build reads each new enquiry from the website form or the inbox, pulls out the parties, the matter type and any deadline, and opens a draft matter in the case management system, for example Clio, LEAP or Actionstep.
The same build runs each party name through the firm's conflict search and returns every hit with the matter it came from. The SRA Code says "You do not act if there is an own interest conflict or a significant risk of such a conflict" (paragraph 6.1), so the decision to act stays with a solicitor.
AML and ID checks
The SRA's 2023 Risk Outlook report lists parts of anti-money laundering checks among the routine compliance work AI can automate. In practice that means requesting ID and source of funds documents, chasing the client until each one arrives, filing it to the matter and pre-filling the risk assessment from the ID provider's result.
The firm's AML duties come from the Money Laundering Regulations 2017. The sector guidance is the Legal Sector Affinity Group (LSAG) guidance, and the SRA says HM Treasury approved its latest revision with effect from 23 April 2025. The risk rating, any enhanced due diligence and every suspicion stay with people, and a suspicion goes to the firm's MLRO.
Drafting, document review and precedent search
AI drafts and checks documents well enough to save fee-earner time, but it cannot be trusted with legal research on its own. In Stanford RegLab's 2024 tests of research tools built for lawyers, Lexis+ AI and Ask Practical Law AI gave incorrect information more than 17% of the time, and Westlaw AI-Assisted Research more than 34%. The safer pattern keeps the AI inside the firm's own approved documents and leaves case law to a solicitor.
First drafts from the firm's precedents
The build fills the firm's approved precedent with facts from the matter file and marks every clause it changed. Nothing goes to the client or the other side until the reviewing solicitor approves it.
Document review against a checklist
For leases, NDAs and supply contracts, the build compares each clause with the firm's playbook and lists the clauses that fall outside it, with clause numbers. A 30-page lease of about 20,000 tokens (an assumption) costs about $0.04 to read on Claude Sonnet 5.5 at $2 per million input tokens. A 2,000-token report costs $0.02 at $10 per million output tokens, so one review costs about $0.06 in model usage.
Precedent and know-how search
A search tool over the firm's precedents, practice notes and past advice answers in plain English and links each answer to its source document. When the SRA authorised Garfield.Law, the first AI-driven law firm in England and Wales, on 6 May 2025, one safeguard was that its system cannot propose case law, which the SRA called a high-risk area for large language models. A firm's own tool can follow the same rule. The custom LLM vs RAG guide explains how search over company documents works.
Client updates and time recording
Client updates and time entries are the most repetitive writing in a firm, and both suit a draft-then-approve pattern.
Matter updates to clients
The build drafts a status email at each milestone, or every week, from the matter notes, the last correspondence and the next step. The fee earner reads it and approves it with one click.
Time recording
The build drafts time entries from the day's sent emails, documents edited and calls logged, in the firm's narrative style and units. The fee earner confirms each entry before it reaches a bill.
No published study gives the hours UK firms lose to unrecorded time, so estimate it from your own figures. A worked example with stated assumptions follows.
- Assume 12 fee earners each fail to record 12 minutes (two 6-minute units) of billable work a day, over 220 working days.
- That is 12 × 0.2 hours × 220 = 528 hours a year.
- At an assumed charge-out rate of £180 an hour, 528 hours is £95,040 of work that never reaches a bill.
- If draft entries recover half of it, the firm bills £47,520 more a year.
Replace each assumption with figures from the firm's own time-recording reports.
What the SRA, the Law Society and the courts say about AI
The SRA allows AI and has written no AI-specific rule, but it holds solicitors and firms responsible for every output. Four documents set out the position.
- SRA Risk Outlook, 20 November 2023. "We do not specify the technologies that firms should or should not adopt." Firms remain "responsible and accountable for the outputs from AI" and should "test all systems thoroughly before bringing them into use".
- SRA warning notice, 17 August 2026. "The use of AI does not diminish or transfer your professional responsibilities." Supervisors may face regulatory consequences if unchecked false citations reach a court, and the COLP must take reasonable steps to ensure compliance. Legal Futures reported that the SRA had received 42 reports of possible AI misuse in the previous year.
- SRA Code of Conduct. A solicitor who supervises others "remain[s] accountable for the work carried out through them" (paragraph 3.5) and must not mislead the court (paragraph 1.4).
- Law Society guidance. The Law Society updated "Generative AI: the essentials" to reflect the Ayinde and Al-Haroun judgments. Solicitors Journal reports that it says "Generative AI cannot autonomously validate or audit the accuracy of its results."
Ayinde v Haringey and fake citations
The leading UK case is R (Ayinde) v London Borough of Haringey, heard with Al-Haroun v Qatar National Bank, [2025] EWHC 1383 (Admin), decided by the Divisional Court on 6 June 2025. The Ayinde grounds cited five cases that do not exist. In Al-Haroun, an £89.4 million claim, the court listed 45 citations, and 18 of the cases did not exist.
The court said freely available generative AI tools "are not capable of conducting reliable legal research". It said lawyers have a duty "to check the accuracy of such research by reference to authoritative sources". It referred the supervising solicitor in Ayinde and the solicitor in Al-Haroun to the SRA. Earlier, Ritchie J had ordered wasted costs of £2,000 each against the barrister and Haringey Law Centre.
Confidentiality, privilege and UK GDPR
Client data should only go into AI tools whose terms keep it confidential and out of model training. The SRA's August 2026 notice warns that with public AI tools "legal professional privilege may be permanently waived and unable to be recovered". It tells firms to check that client data is not used to train models "except where explicitly authorised", and says free and paid tools can both carry risk, depending on the provider's terms. Paragraph 6.3 of the SRA Code still says "You keep the affairs of current and former clients confidential".
For UK GDPR, the ICO's "Guidance on AI and data protection" covers data protection impact assessments, lawfulness and transparency. The ICO says the guidance is under review after the Data (Use and Access) Act, so check the page before each new build.
What to keep human
- Deciding whether to act, and every conflict decision
- Advice to the client
- Anything filed at court, with every citation checked against an authoritative source
- AML risk ratings and every suspicion
- Sending anything to the client or the other side
- Final bills
What AI costs a law firm
A single automation costs from £1,500 to build on one London agency's 2026 price list, and a controlled AI agent from £6,500, before monthly fees. A staff AI workspace costs $20 a seat a month instead. The figures below come from Softomate's list, updated 1 October 2026, and Claude's pricing page, checked 7 November 2026.
| Option | Build cost | Monthly cost |
|---|---|---|
| Private AI workspace for staff (Claude Team, standard seat) | None | $20 a seat on annual billing, $25 monthly (USD) |
| One automation, for example intake into case management | From £1,500 | From £99 |
| Document extraction and filing workflow | From £4,500 | From £299 |
| Knowledge assistant over the firm's documents | From £6,000 | From £399 |
| Controlled AI agent | From £6,500 | From £399 |
These are one agency's "from" prices before VAT, and third-party platforms and usage are billed on top. No independent survey of UK AI build prices exists.
Model usage is the smallest line. At about $0.06 a document, 500 lease reviews a month cost about $30. The guides to AI agent costs and AI chatbot costs in the UK compare more price lists and running costs.
How Yarigai builds this for law firms
Yarigai is a done-for-you AI agency in London. It builds AI agents, document reading and filing, inbox triage and internal tools inside a client's own accounts, which for a law firm means its email, document store and case management system. The firm owns the code, the data and the accounts from day one.
A project starts with a free 30-minute scope call on Google Meet, and the firm keeps the notes whether it hires Yarigai or not. A blueprint of about a week, credited to the build, sets out a written plan, a clickable prototype, the monthly running cost, a fixed price and the payback maths. The build takes 2 to 6 weeks in the firm's accounts with a demo of working software every week. A single workflow, such as intake, can go live in about two weeks.
A person approves anything that sends money, emails a customer or deletes data. AI and hosting bills are paid by the firm at cost, and the monthly running cost is on the quote. Yarigai's guarantee is one sentence: "If the build isn't profitable for you, we won't build it."
Yarigai has no published law firm case study. Its public proof is the software it built and runs, described on the about page, and its document and operations work is on the services pages.
Common questions
Does the SRA allow solicitors to use AI?
Yes. The SRA says it does not specify which technologies firms adopt, and it authorised Garfield.Law, the first AI-driven law firm in England and Wales, in May 2025. Its August 2026 warning notice says AI does not transfer a solicitor's responsibilities, so the firm answers for every output.
Can a law firm put client documents into ChatGPT?
Not into a public tool on default settings. The SRA warns that public AI tools can permanently waive legal professional privilege, and tells firms to check that client data is not used to train models. Use a business or API tier whose terms keep data out of training, and record that check.
What happened in Ayinde v Haringey?
In June 2025 the Divisional Court dealt with two cases where lawyers put fake citations before the court. The Ayinde grounds cited five cases that do not exist, and in Al-Haroun 18 of the 45 citations the court listed were cases that do not exist. The court said free generative AI tools cannot do reliable legal research and referred the solicitors involved to the SRA.
Can AI do AML checks for solicitors?
AI can chase and file ID and source of funds documents and pre-fill the risk assessment, and the SRA's 2023 Risk Outlook names parts of AML checks as work AI can automate. The risk rating, enhanced due diligence and any suspicion stay with people.
How much does AI cost for a small law firm?
A staff AI workspace costs about $20 a seat a month. On one London agency's October 2026 list, a custom automation starts from £1,500 and a controlled agent from £6,500, plus monthly fees from £99. Reviewing one 30-page lease costs about $0.06 in model usage on Claude Sonnet 5.5.
How long does it take to set up AI in a law firm?
With Yarigai, a one-week blueprint comes first, then a 2 to 6 week build in the firm's own accounts with a weekly demo. A single workflow, such as intake or time entry drafts, can go live in about two weeks.
Sources
Checked on or before 7 November 2026. Prices change, so check the live page before you decide.
- Misuse of AI: warning notice, Solicitors Regulation Authority, published 17 August 2026.
- SRA warns profession over AI misuse amidst investigations, Legal Futures, published 18 August 2026.
- Risk Outlook report: The use of artificial intelligence in the legal market, Solicitors Regulation Authority, published 20 November 2023.
- SRA Code of Conduct for Solicitors, RELs, RFLs and RSLs, Solicitors Regulation Authority, version in effect from 11 April 2025, checked 7 November 2026.
- SRA approves first AI-driven law firm, Solicitors Regulation Authority, published 6 May 2025.
- [Ayinde, R (on the application of) v The London Borough of Haringey [2025] EWHC 1383 (Admin)](https://caselaw.nationalarchives.gov.uk/ewhc/admin/2025/1383), The National Archives, judgment of 6 June 2025.
- Generative AI in law: opportunity, risk and responsibility, Solicitors Journal, published 2 January 2026.
- AI on Trial: Legal Models Hallucinate in 1 out of 6 (or More) Benchmarking Queries, Stanford HAI, published 23 May 2024.
- Your AML obligations, Solicitors Regulation Authority, updated 8 September 2026.
- Guidance on AI and data protection, Information Commissioner's Office, last updated 15 March 2023, checked 7 November 2026.
- AI Automation Pricing for UK Businesses: What Every Service Costs and What ROI to Expect in 2026, Softomate, updated 1 October 2026.
- Claude pricing, Anthropic, checked 7 November 2026.
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