Last reviewed: June 2026
TL;DR- Employer's liability is a legal requirement under the Employers' Liability (Compulsory Insurance) Act 1969 if you have employees
- Public liability is not legally required but is often contractually required by clients or venues
- Professional indemnity covers claims from professional errors - mandatory for some FCA-regulated firms
- Packaged business insurance policies often cost less than buying covers separately
- All insurers must be FCA-authorised - check register.fca.org.uk before purchasing
What Business Insurance Does a UK Business Actually Need?
Business insurance is not a single product - it is a category covering multiple distinct risks. The covers a business needs depend on its size, sector, legal structure, whether it has employees, whether it operates from premises, and what services or products it provides. Starting with the legally required cover and working outward to contractually required and then advisable covers is the systematic approach to building a cost-effective programme.
The danger of buying the cheapest possible business insurance is purchasing cover that does not match the actual risk profile of the business. A policy that excludes the activities the business actually carries out, or that has an excess too high to be practically useful, offers false economy. The right cover is cover that actually protects the business in the scenarios it faces.
Employer's Liability: The Legal Requirement
The Employers' Liability (Compulsory Insurance) Act 1969 requires most UK businesses with one or more employees to hold employer's liability (EL) insurance of at least £5 million. Most standard policies provide £10 million as a minimum. EL covers claims from employees who suffer injury, illness, or death arising from their employment, including claims arising from the work environment, equipment provided by the employer, or the actions of colleagues.
The Health and Safety Executive (HSE) enforces compliance with the EL requirement. Businesses without valid EL insurance can be fined up to £2,500 per day. The certificate of EL insurance must be displayed prominently at the workplace or made available electronically to all employees who do not work at a fixed location. The certificate must show the insurer's name and the insured amount.
The EL requirement applies to most businesses with employees including part-time workers, temporary workers, apprentices, and agency workers on the employer's payroll. Sole traders with no employees, and some closely held family businesses where all employees are close family members, may be exempt - but these exemptions are narrow and should be verified against HSE guidance rather than assumed.
Public Liability Insurance
Public liability (PL) insurance covers claims from third parties - members of the public, clients, visitors, or other people who are not employees - who suffer bodily injury or property damage as a result of the business's activities. A customer who slips and is injured on the business's premises, a contractor whose vehicle is damaged by falling materials from a worksite, or a delivery driver whose goods are damaged during loading would all potentially trigger a PL claim.
PL is not a legal requirement for most businesses in the UK, but it is frequently a practical requirement. Local councils routinely require market traders, street food vendors, and outdoor event operators to hold PL insurance before granting licences or permits. Event venues typically require all hirers to hold PL cover. Public sector contracts almost universally specify minimum PL limits. Many trade bodies and professional associations require PL cover as a condition of membership. Without PL, a business may be unable to operate in the locations it needs or win the contracts it wants.
PL cover levels range from £1 million to £10 million and above. The appropriate level depends on the nature and scale of the business's activities and the risk of significant third-party claims. High-risk activities such as construction, events, and food preparation typically require higher limits.
Professional Indemnity Insurance
Professional indemnity (PI) insurance protects businesses that provide advice, consultancy, design, or professional services against claims arising from errors, omissions, or negligent advice that causes financial loss to a client. If a consultant's recommendation causes a client to make a poor investment decision, or a designer's error requires expensive rework, or an accountant's mistake causes a tax penalty, a PI claim may result.
PI is not legally required for most businesses, but it is mandatory for certain regulated professions. Under FCA rules, financial advisers, mortgage brokers, insurance intermediaries, and other regulated firms must hold PI insurance as a condition of authorisation and at levels specified by the FCA. Architects must hold PI under their RIBA membership; solicitors under SRA rules; and chartered accountants under ICAEW or ACCA membership conditions. For unregulated businesses providing professional advice or services, PI is strongly advisable and is often required by clients before engaging.
Key Business Insurance Types
| Cover Type | Legally Required? | Who Needs It |
|---|---|---|
| Employer's liability | Yes (with employees) | All employers - min £5m cover |
| Public liability | No (often contractual) | Customer-facing and site-based businesses |
| Professional indemnity | No (mandatory some professions) | Advice and professional service businesses |
| Business contents | No | Businesses with equipment, tools, or stock |
| Business interruption | No | Businesses reliant on specific premises or supply chain |
| Cyber insurance | No | Businesses holding customer data or reliant on IT systems |
| Product liability | No | Manufacturers, importers, and retailers of physical products |
Packaged Business Insurance
Many insurers offer packaged business insurance policies (sometimes called combined commercial insurance, tradesperson insurance, or SME insurance) that bundle multiple covers into a single policy with a single renewal date and a single insurer relationship. This is typically more cost-effective than buying each cover separately and reduces administrative complexity.
Packaged policies are often structured by trade or sector - retailers, tradespeople, professional services, hospitality, and so on - with cover limits designed for the typical risk profile of that sector. A tradesperson policy will typically include PL and employer's liability (if relevant) with tools and equipment cover. A professional services policy will typically include PI and PL. Reviewing the limits within each section of a packaged policy is important, as the headline premium may mask low limits in specific areas.
How to Compare Business Insurance Costs Properly
Comparing business insurance on premium alone is insufficient. The excess (the amount the business pays before the insurer covers the rest), the cover limits for each section, and any exclusions that are material to the business's activities are as important as the headline premium. A policy with a very high excess in the most likely claim scenario provides limited practical protection regardless of how cheap it is.
All insurance providers selling business insurance in the UK must be FCA-authorised. The FCA register at register.fca.org.uk allows businesses to verify any insurer's status. The ABI publishes guidance on business insurance at abi.org.uk.
Frequently Asked Questions
Is employer's liability compulsory for all UK businesses?
EL is compulsory under the Employers' Liability (Compulsory Insurance) Act 1969 for most businesses with one or more employees. Narrow exemptions exist for some family businesses and sole traders with no employees. The HSE enforces the requirement. Businesses unsure of their status should check HSE guidance at hse.gov.uk.
What is the minimum employer's liability cover required by law?
The 1969 Act requires a minimum of £5 million. In practice, most insurer policies provide £10 million as standard. The certificate of insurance must be displayed or electronically available to employees.
Do I need public liability insurance as a sole trader?
PL is not a legal requirement for sole traders, but many client contracts, trade associations, and working venues require it before work can begin. Without PL, a sole trader may be unable to win certain contracts or operate in certain locations.
Can I get business insurance as a sole trader or freelancer?
Yes. Business insurance is available to sole traders, freelancers, partnerships, and limited companies. Many insurers offer packaged policies tailored to micro-businesses. The covers needed will depend on the nature of the work.
What is business interruption insurance and do I need it?
Business interruption (BI) insurance covers the loss of income if the business cannot operate following an insured event such as a fire, flood, or equipment failure. It is not legally required but can be critical for businesses dependent on specific premises or equipment. BI is often included as a section within packaged business insurance policies.
- Employers' Liability (Compulsory Insurance) Act 1969: legislation.gov.uk
- HSE - Employer's liability: hse.gov.uk
- ABI - Business insurance: abi.org.uk
- FCA: fca.org.uk
Reviewing Your Business Insurance at Renewal
Business insurance should be reviewed at every renewal rather than auto-renewed without consideration. As a business grows, takes on employees, expands its activities, moves premises, or enters new sectors, the original cover levels and policy terms may no longer be appropriate. An underinsured business - one whose claim amount exceeds its policy limit - will only receive the policy maximum, leaving any excess exposure uninsured. The Financial Ombudsman Service (FOS) can investigate complaints about insurance providers, including cases where a claim has been declined or disputed.
The renewal process is also an opportunity to check that the insurer remains FCA-authorised. Insurers can have their authorisation suspended or revoked, and policies from a firm that loses its FCA authorisation may be affected. The FCA register at register.fca.org.uk provides current status information.
GDPR and Cyber Insurance for Small Businesses
UK GDPR (the UK's retained version of GDPR under the Data Protection Act 2018) requires most businesses that process personal data to implement appropriate security measures and to report certain data breaches to the Information Commissioner's Office (ICO) within 72 hours. Cyber insurance can provide financial support to meet the costs associated with a data breach - including forensic investigation, customer notification, regulatory defence, and any compensation or fines that result. The ICO can issue fines for GDPR breaches of up to £17.5 million or 4% of global annual turnover, whichever is higher, for serious breaches. For small businesses, even smaller ICO fines or the reputational damage from a publicised breach can be existential. Cyber insurance does not replace the legal obligation to implement appropriate security measures, but it transfers the financial risk of a breach that occurs despite those measures.
