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Aipedia: Bookkeepers
PI usually covers a bookkeeper's negligent mistakes whether or not AI was involved, provided the work is a declared service and no exclusion applies. No bookkeeping body has published anything on AI and PI, so the policy wording decides.
Part of: AI in Bookkeepers
In short
ICB public practitioners must hold PI against professional negligence claims, at least £50,000 and appropriate to the size of the business. AAT licensed members need the greater of 2.5 times fee income or £50,000 (sole traders) or £100,000 (partnerships and companies), on a full civil liability, fully retroactive basis. IAB requires proof of PI covering the services provided. None of the three has said anything about AI. A client claim caused by an AI-assisted error is usually treated like any other negligence claim, subject to the terms. Undeclared services and data breaches are the main gaps.
| Body | PI requirement | Says anything on AI? |
|---|---|---|
| ICB | s.27(c): public practitioners must hold "a valid policy of professional indemnity insurance against claims for professional negligence". Minimum £50,000, and appropriate to the size of the business. No run-off rule stated. | No |
| AAT | Greater of 2.5 times gross fee income or £50,000 (sole traders) or £100,000 (partnerships and companies), up to a maximum required of £1m above £400,000 fee income. Full civil liability, fully retroactive. Six years' cover after ceasing "strongly recommended". | No |
| IAB | Applicants for AML supervision "must provide proof of professional indemnity insurance, which covers the services your practice provides". No minimum stated. | No |
Sources: ICB Professional Conduct Regulations, AAT PII requirements and IAB AML supervision. HMRC tax adviser registration does not require PI.
PI responds to claims that you breached your professional duty and caused loss. Most wordings do not distinguish between an error made by hand and one made by accepting a software suggestion; the question is whether your work met a reasonable standard. A civil liability wording, as AAT requires, is generally wider than one limited to negligence. Some policies may include AI-specific clauses or questions, so read yours; see AI exclusions and clauses. Typical AI-related claims are covered in our pages on bank reconciliation, VAT returns and software errors.
Under the fair presentation duty you must disclose material circumstances when buying or renewing cover. For bookkeepers, the bigger issue is usually services, not tools. AI makes it easy to add payroll, credit control, forecasting, MTD submissions or tax answers. If those services are not declared, cover for a related claim may be disputed. Describe how you use AI where the proposal asks, and keep a simple record of your review processes; see what to document about AI use and the fair presentation duty.
Pasting client data into a public AI tool, or a capture service leaking documents, raises confidentiality issues under ICB s.14 and, for AAT members doing tax work, PCRT AI guidance 4.2. A client's claim for breach of confidence may fall under PI, subject to the wording, but the costs of responding to a data incident, such as forensic work and notifying individuals, usually sit under cyber insurance. PI policies may exclude or limit cyber events. See where cyber and PI cover meet.
A sole trader bookkeeper, ICB-licensed, adds AI-assisted payroll and cash flow forecasting during the year but renews PI with the same description of "bookkeeping services". A forecasting client claims after relying on an overstated forecast. The insurer asks why forecasting was not declared. Whether cover applies may depend on the wording and on whether the omission was material. Declaring the services at renewal would have avoided the argument.
AI can repeat one error across many clients, so check aggregation and whether your limit reflects that. ICB states no run-off rule, but claims can arrive years after work is done; AAT strongly recommends six years' cover after ceasing. Keep retroactive cover unbroken when switching insurers. See run-off cover explained and PI claims examples for bookkeepers.
Apex arranges PI for bookkeepers and a broker can review your cover against ICB, AAT and IAB requirements and how your policy treats AI-assisted work and your full range of services. Start at the AI in bookkeeping hub.
Many policies may not mention AI at all, in which case AI-assisted errors are usually treated like other negligence. Some wordings may include AI clauses. Read your policy, and ask your broker if anything about technology or automated processing is excluded.
ICB s.27(c) requires public practitioners to hold PI against professional negligence claims. The minimum is £50,000, and cover must be appropriate to the size of the business, which may mean more.
AAT licensed members need the greater of 2.5 times gross fee income or £50,000 for sole traders, or £100,000 for partnerships and companies, with a maximum requirement of £1m above £400,000 fee income. Cover must be full civil liability and fully retroactive.
If the proposal asks, answer accurately. More important is declaring every service you provide, because AI often lets bookkeepers add services such as payroll or forecasting that may otherwise fall outside the description of your business.
Tell us about your firm and the work you do. A broker will review how your current PI treats AI-assisted work, or arrange new cover. No fee for a quote. Or call 0117 325 0027.
Start a PI quote Request a callbackApex Insurance Brokers Limited is authorised and regulated by the Financial Conduct Authority. Registered in England and Wales, company number 07014570. This page is general information about how AI is used in the profession and how insurance may respond. It is not legal, regulatory or insurance advice on your circumstances, and it does not guarantee that cover will be available or on what terms.
