How much public liability insurance do I need?

Read the actual insurance requirement before requesting quotes. The amount matters, but so do the type of cover, the business named and the work involved.

Check the required amount, cover and business name

Have the relevant contract or scheme documents ready and identify:

• the business to be insured, including its legal name;
• the insurance type;
• the required limit and how it must apply;
• the work and locations concerned; and
• the documents or additional terms requested.

A public liability requirement is different from one for employers’ liability, professional indemnity or insurance for project property. Ask the client or organisation setting the requirement to clarify uncertain wording, then ask the provider whether the proposed policy meets it. Seek appropriate professional help if the clause remains unclear.

Is the client’s minimum enough?

A policy can display the requested amount while excluding an activity or failing another contract condition. Meeting the minimum also does not establish that the amount addresses the potential consequences of your work.

Requirements can come from contracts, professional conditions or applicable law and licensing rules. Check which applies to your activity and location rather than assuming one amount is standard for all domestic, commercial or public-sector work. Our guide to legally required business insurance explains the distinction.

Look beyond the size of the job or the fee you charge. Consider who could be affected, what could be damaged and whether an incident could extend beyond the immediate work area.

People and the possible severity of an incident

Consider who could be injured, how serious an injury could be and whether one incident could affect several people. Describe the work around customers, visitors, passers-by and others sharing a site.

Discuss these questions with the provider; the number of people alone does not calculate a suitable limit.

Property damage beyond the immediate work area

Consider valuable property, occupied premises and shared buildings. Damage may affect more than the item you are working on, and a small fee or low turnover does not itself cap possible liability.

Identify what could be damaged, then check whether the policy covers it. Property being treated, worked on or controlled can be subject to restrictions.

Different work means different questions

These hypothetical examples show what to investigate, without assigning a cover amount.

Example: cleaner. What could happen to customers or property during cleaning? Check how the policy treats damage to the surface being cleaned. Our cleaner insurance page explains checks for cleaning work.

Example: builder. Could work in an occupied building affect people or neighbouring property? Check restrictions on the activities and property involved. See builder insurance for checks for building projects.

Employees and subcontractors can affect claims from other people. An employee’s own work-related injury or illness raises separate employers’ liability questions. Check subcontractors’ actual relationships and policy definitions; a higher public liability limit does not replace required employers’ liability cover. Our public liability versus employers’ liability guide explains the distinction.

£1 million, £2 million, £5 million and £10 million are illustrative amounts, not recommendations. Ask which limits are available to your business.

On an otherwise matching basis, a higher amount means a higher stated cap. The insured work, costs, sublimits and exclusions still need checking at every level.

Is £1 million enough?

Check the requirements, possible consequences of your work and how the policy’s limit applies. The amount alone cannot establish sufficiency. Use the same checks when comparing £2 million with £5 million, or £5 million with £10 million.

A higher cap does not add cover for excluded or undeclared activities, or correct the wrong insured business. It does not guarantee payment up to that amount.

The insurance limit does not itself cap your business’s legal liability. Amounts above the available insurance, and liabilities the policy does not cover, may remain your responsibility.

The premium is the price of insurance. The indemnity limit is the relevant maximum payable under the terms. An excess is the amount your business must pay towards a claim where the policy requires it.

Equal headline amounts do not necessarily provide equal protection. Read the schedule, wording and endorsements together. Endorsements change the policy’s terms.

Does the limit apply to each claim or to several claims?

Check whether the limit applies to a claim, occurrence or event, and how the policy defines each term. They are not interchangeable. The policy may treat several connected claims as one claim sharing a single limit.

An aggregate is a total shared across specified claims or losses. Check the period and section concerned; do not assume one annual aggregate applies to everything. A combined public and products liability section may use different rules for each part.

Defence costs and sublimits

Ask how legal costs and any lower limits affect the headline amount. Use these questions when reviewing the actual documents.

Feature	What to check
Defence and claimants’ costs	Do defence costs count towards the limit or sit outside it? How are claimants’ legal costs you become liable to pay treated? What conditions or restrictions apply to each?
Insurer approval and claims handling	Which costs require the insurer’s agreement and how claims are managed.
Sublimits	Whether a particular exposure has a smaller cap and whether it forms part of the main limit.
Grouped claims	Which connected matters share a limit?

Excesses, restrictions and activities

Check which claims carry an excess and how it applies. Do not assume every claim type has the same contribution. Review property and activity restrictions alongside the amount.

Our guide to business insurance limits and excesses explains the mechanics in more detail.

Changing the limit may change the premium. Obtain otherwise matching quotes to establish the actual difference for your business. Do not assume a fixed price increase.

Compare the same activities, dates and other terms. Do not reduce below a requirement simply to reach a cheaper price. Our public liability insurance cost guide explains premium factors and payment comparisons.

Prepare the requirements and work details once, then use the same information for each offer. This makes it easier to see whether differences concern the limit or something else.

Use this checklist to prepare questions for the provider. It does not calculate a recommended limit.

Check	Information to establish
Requirements	Contract or scheme amount, limit basis, business, activities and evidence requested.
Actual work	All activities, locations, specialist work and relevant people.
Available limit	Available amount and how the limit applies under the actual policy.
Activities and restrictions	Accepted activities, property restrictions, exclusions and additional cover.
Costs and contributions	Defence and claimants’ cost treatment, sublimits and relevant excesses.
Matching quote details	Whether the same business, period and other terms are quoted at each amount.
Questions to resolve	Questions to clarify with the insurer, intermediary or appropriate professional.

Describe your work accurately even where an application category seems broad. Clarify anything that does not fit before relying on an offer. If a requirement exceeds the available cover, resolve the difference with the client and provider rather than assuming additional insurance above the policy’s limit can be arranged.

When arranging business insurance, the duty of fair presentation can require more than answering application questions. Disclose material information your business knows or ought to know, and ask the broker or insurer if you are unsure what to provide.

Our guide to comparing business insurance quotes covers the fuller comparison process.

Review it when the requirements or work change, as well as at renewal. Useful triggers include:

• new client or contract requirements;
• changes to activities, projects, locations, people or property, including relevant subcontracting arrangements; and
• renewal or a proposed change of insurer or terms.

Follow the policy’s notification requirements. Check whether the change is available, when it starts and which documents need updating. Do not assume an increase will apply to an incident you already know about.

Read about business changes to tell your insurer about and the renewal review before changing arrangements.