UK business insurance is a market crowded with broker calls and over-selling. If you are working out what insurance you need for a small business — whether you are an established sole trader, a limited company or a startup taking on its first premises — the summary below is what we wish every customer knew before they signed an annual policy. The mix of cover splits into three groups: what the law requires, what your contracts and customers require, and what is genuinely worth buying for the risks a micro-business actually carries.
What is legally required
Employers' liability insurance is the only mandatory business insurance in the UK, and only when you employ anyone other than the sole director. Minimum cover £5 million; most policies default to £10 million because the premium difference is tiny. Fines for trading without it are £2,500 per day. If you employ a single person, you need it from day one.
What is functionally required
Public liability insurance is not legally required but you cannot operate without it. Most landlords, customers and venue operators require £1 million or £2 million as a condition of access. The standard product is cheap (~£100-£300 a year for a micro-business) and covers third-party injury and property damage you cause.
Professional indemnity insurance covers losses caused to a client by bad advice or a mistake in your work. Required for solicitors, accountants, architects, consultants, IT contractors and similar — often a contractual condition. Premiums scale with claim limits and fee income.
Genuinely useful for many micro-businesses
- Cyber liability — covers data breach response, ransomware costs, customer notification under UK GDPR. For any business that holds customer data, this is now more important than physical contents cover. Premium: £200-£600 for typical micro-business.
- Tools and equipment cover — for trades. Replaces stolen / damaged tools, often including in-van overnight.
- Goods in transit — for anyone moving stock or product.
- Business contents — for office-based businesses with expensive kit.
- Business interruption — pays out if you cannot trade because of a covered event (fire, flood, sometimes cyber). Often bundled with property cover.
Often over-sold
- Key person insurance — useful for businesses with one critical person whose absence stops the company earning, but oversold to founders whose company would continue without them.
- Directors and officers (D&O) insurance — relevant when there are external shareholders or you sit on regulated boards; usually unnecessary for a sole-director micro-business.
- Legal expenses cover — sometimes useful, but many cover-only-after-the-event so you cannot use them to fund a fresh dispute.
How to buy
Use an FCA-authorised broker, not a comparison site. A broker has access to underwriters that comparison sites do not, can interpret exclusions properly and writes a single policy document that actually matches your work. The British Insurance Brokers' Association (BIBA) has a free "Find a broker" service.
What to check on every policy
- Excess — what you pay on every claim.
- Aggregate limit — total annual payout cap.
- Exclusions — read these properly; "cyber excluded" on a property policy after a ransomware attack is a real example.
- Notification clause — most policies have a strict reporting window; missing it voids cover.
Small business insurance works on the same principle whatever your stage: you pay an annual premium in exchange for a defined limit of cover, an excess you contribute on each claim, and a set of exclusions that narrow what is actually paid out. For a startup the first policy is usually the simplest part — combined "business essentials" packages bundle public liability, employers' liability and cyber into one renewal — but it is worth reviewing the limits each year as turnover, headcount and equipment grow, so you do not end up underinsured.
Get covered before you need to claim. Most micro-businesses spend £400-£900 a year for a sensible bundle of public liability + employers' liability + cyber, which is less than a single afternoon's billing.
Frequently asked questions — business insurance for a UK micro-business
- What business insurance is legally required for a UK limited company?
- Employers' liability insurance is a legal requirement for any business with employees (including directors on the payroll). Third-party motor insurance is required for any vehicle used for business purposes. Most other cover — public liability, professional indemnity, contents — is commercially prudent but not legally mandated, though clients and landlords often require it by contract.
- What is professional indemnity insurance and do I need it?
- Professional indemnity (PI) insurance covers claims that your advice, design or service caused a client a financial loss. It is essential for consultants, accountants, solicitors, architects and anyone who gives professional advice for a fee. It is typically not needed by product sellers or trades businesses whose risk is covered by public liability and product liability cover.
- Can I use a short-term business loan to cover an unexpected insurance renewal?
- Yes. A Credicorp short-term business loan is well suited to a one-off bill like a large insurance renewal that falls before a contract payment or busy trading period arrives. The loan is repaid once income clears — typically over 14–84 days — and the total cost is fixed from the outset.