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Sole traders and partnerships guides · 6 min read

Professional indemnity cover and business structure

Understand how professional indemnity insurance relates to sole traders, partnerships, LLPs and companies, and what to check before buying cover.

Jurisdiction: United Kingdom.

Professional indemnity insurance can help address claims arising from professional advice or services, subject to the policy wording. Choosing a limited company or LLP does not make this risk disappear. Business structure and insurance answer different questions: one concerns legal ownership and responsibility, while the other concerns the cover purchased for specified risks. [1][3]

Start with the work and the applicable requirements

List the services you actually provide, who relies on them and where customers are based. Consider the consequences of an error, omission or missed deadline. Check whether a professional body, regulator or customer contract sets insurance requirements for the activity. [1]

Do not assume that professional indemnity cover is compulsory for every UK business, or that one generic policy meets every professional rule. A regulated practice may need arrangements that differ substantially from those of an unregulated consultancy.

Identify the correct insured parties

The proposal should accurately describe the legal entity and relevant trading names. Tell the insurer or broker about a change from sole trader to company, admission of partners, acquisitions or a change in services. Ask how past work and people acting for the business are treated.

For example, a consultant who incorporates after several years as a sole trader should not assume that a policy naming only the new company automatically covers all earlier personal work. Obtain a clear explanation based on the actual wording and history.

Read the limits and exclusions

Review the policy limit, excess, exclusions, geographical scope and any restrictions linked to the services offered. Ask how defence costs affect the available limit and whether cover is assessed per claim or on another basis. Understand your duties to disclose relevant information and notify matters that may lead to a claim.

Professional indemnity policies commonly involve timing conditions concerning when claims are made and notified. [4] Ask specifically about earlier work, continuity between policies and what happens after closure or retirement. The answer depends on the contract; do not rely on the policy's headline title alone.

Distinguish other business insurance

Employment insurance requirements differ in Northern Ireland; check the applicable local rules. Professional indemnity is not a substitute for every other type of cover. Public liability, cyber, property and employers' liability address different risks. Employers' liability is normally legally required when employing staff unless an applicable exemption exists, and its requirements should be checked separately. [2]

Prepare for an insurance discussion

  • Provide an accurate description of activities and turnover.
  • Identify the legal structure and all relevant trading names.
  • Disclose the claims history and circumstances requested.
  • Share contractual insurance requirements before agreeing them.
  • Ask about previous work and changes in structure.
  • Review cover when services, staffing or customer markets change.

Give the broker a service-by-service description

Explain what the business actually supplies and what customers rely on. A description such as consultancy may conceal design, project management, technical advice or implementation work with different risks. Include new services and substantial changes in customer location or contract size before assuming the existing policy still fits.

Provide examples of the client terms you intend to accept. A contract may require a particular limit or include an obligation that goes beyond the service fee. Ask the broker and contract adviser to identify gaps before signing. Agreement to obtain insurance later does not establish that the required cover will be available on acceptable terms.

Compare limits using the same claim scenario

Imagine a customer alleges a professional error and seeks compensation while defence costs are also incurred. Ask how the proposed limit, excess and treatment of defence costs operate in that scenario. Find out whether several claims share one limit or are assessed separately under the wording. These questions can reveal material differences between quotations with similar headline prices.

Do not choose a limit solely by reference to annual turnover. The possible consequence of a mistake may exceed the fee or the business's income. Equally, a larger advertised limit does not remove an exclusion for the particular service being supplied.

Trace the business history through changes of entity

Prepare a timeline showing sole trader activity, partnership membership, incorporation, acquisitions and any predecessor businesses. Give the insurer or broker the dates, services and previous policy details requested. Ask how earlier work is treated and which entities and individuals are included.

For example, a consultant may have performed advice personally and later moved the ongoing client relationship into a company. A policy naming the company should not be assumed to cover every claim connected with the earlier personal work. Obtain clarification using the actual history and wording rather than relying on the continuity of the trading name.

Establish a notification routine

Identify who should receive a complaint or circumstance that may lead to a claim and how they will check the policy requirements promptly. Keep the relevant correspondence and follow the insurer's instructions on response and notification. Do not wait for formal proceedings before considering whether the wording requires action.

If changing insurer or retiring, discuss continuity and any run-off arrangement before the current policy ends. Explain known circumstances accurately and obtain the relevant advice on disclosure. A cheap renewal or replacement is not useful if it leaves an important period or activity unaddressed.

Keep the proposal, schedule, wording, endorsements and written clarifications together. Review them when the business changes, not only when the renewal notice arrives. The purpose is to understand the protection actually purchased and the actions needed to preserve it, alongside the separate legal responsibilities created by the business structure.

Keep the proposal, policy wording and any clarification together. Compare suitability and exclusions as well as price. If a customer requests wording or a level of cover you do not have, resolve that point before signing the contract rather than assuming it can be corrected after work begins.

For the entity-choice questions, see company structure review. Insurance suitability and policy wording should be discussed with the insurer or broker.

Frequently asked questions

Does limited liability mean I do not need professional indemnity cover?

No. Incorporation does not remove professional service risks or contractual and regulatory insurance requirements. Assess cover alongside the structure.

Will a new policy cover everything I did before incorporation?

Not necessarily. Explain the trading history and ask how previous work, prior entities and timing conditions are treated under the proposed wording.

Should the cover limit simply equal our annual turnover?

Not automatically. Consider the potential consequence of an error, client requirements and how the policy handles defence costs and multiple claims. Turnover alone does not describe the exposure. Ask the broker to explain suitability for the actual services and contractual commitments.

What should I discuss before changing insurer or retiring?

Explain the business history, prior policies and any known complaint or circumstance requested. Ask about continuity, earlier work, notification duties and possible run-off arrangements. Obtain an answer based on the proposed wording before allowing the current cover to end.

Official sources

Sources checked: 8 September 2026. Check the linked guidance for subsequent changes.

  1. Department for Business and Trade: Insuring your business
  2. GOV.UK: Employers liability insurance
  3. Companies House: Setting up and running an LLP
  4. Association of British Insurers: Professional indemnity insurance

General information only. The appropriate action depends on your circumstances and the applicable jurisdiction.

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