Key Takeaway

UK small businesses and sole traders need different insurance depending on their structure and activities. Employers’ liability is legally required if you employ anyone. Public liability and professional indemnity are not mandatory but protect against client claims and accidents. Most sole traders start with public liability and add professional indemnity if they give advice or deliver professional services.

What Business Insurance Covers

Business insurance protects your livelihood when things go wrong. Public liability covers you if a client or member of the public is injured or their property is damaged because of your business activities. Professional indemnity covers claims that your work or advice caused a client financial loss. Employers’ liability covers claims from employees injured at work.

Buildings and contents insurance protects your premises and equipment. Business interruption cover replaces lost income if you cannot trade after an insured event such as a fire or flood. Product liability covers claims if something you sell or supply causes harm.

As covered in Introduction to Business, understanding these protections is foundational to managing business risk.

Employers’ liability insurance is the only business cover required by law in the UK. If you employ anyone, even part-time or casual staff, you must hold at least £5 million of employers’ liability cover (most policies provide £10 million as standard). Sole traders with no employees are not required to buy any business insurance, but many find they need it to win contracts or meet professional body rules.

Certain professions face additional requirements. Solicitors, accountants, mortgage brokers and financial advisers must hold professional indemnity insurance to practise. Many public sector contracts and large clients require suppliers to show proof of public liability cover, typically £1 million to £5 million.

According to the Association of British Insurers, businesses should confirm current requirements with their professional body or the client before entering contracts (ABI, 2026).

Read also: Comparing Life Insurance Quotes in the UK: What Affects Your Premium

Choosing the Right Cover for Your Business

Start by identifying your biggest risks. If clients visit your premises or you work on client sites, public liability is essential. If you provide advice, design work, consultancy or professional services, add professional indemnity. If you hold stock, equipment or work from commercial premises, consider contents and buildings cover.

Cover limits matter. A £1 million public liability policy may be enough for a home-based consultant, but a builder or tradesperson working on high-value sites may need £5 million or more. Professional indemnity limits typically range from £250,000 to £10 million depending on your sector and contract requirements.

Read the policy wording and the key facts document before you buy. Exclusions vary: some public liability policies exclude work at height or with certain materials. Some professional indemnity policies exclude particular activities or cap payouts per claim. Confirm what is and is not covered with an FCA-authorised insurance adviser for your personal situation.

Next Steps

Request quotes from at least three insurers or use a commercial insurance broker to compare policies. Check whether your professional body or trade association offers group schemes. Keep records of your cover and renew on time: a gap in employers’ liability cover can result in a fine of £2,500 per day.

Review your cover annually or when your business changes. Taking on employees, moving premises, adding new services or winning a large contract can all change your insurance needs.

Disclaimer

This article provides general information about business insurance for UK small businesses and sole traders. It is not regulated financial advice, and UmbrellaOwl is not authorised by the Financial Conduct Authority to provide financial advice. Insurance needs vary by business structure, sector and activities. We recommend speaking to an FCA-authorised insurance adviser or broker to discuss your specific situation before purchasing business insurance. Cover, exclusions and availability vary by insurer and policy. Always read the policy wording, the key facts document and any endorsements, and confirm details with an FCA-authorised adviser before deciding.