A Guide to Business Insurance: What Cover Do You Actually Need?
Business insurance is one of those topics that feels complicated until you break it down — which is exactly why we've written this guide to business insurance and what cover you actually need. There are dozens of policy types, each with their own jargon, and the temptation is either to buy everything offered or to skip it entirely and hope for the best.
Neither approach is sensible. The right insurance protects you from risks that could genuinely end your business, without wasting money on cover you will never use. This guide explains the main types of business insurance, who needs each one, and how to decide what is appropriate for your situation.
Why business insurance matters
A single incident — a client injury, a data breach, a legal dispute — can cost more than most small businesses earn in a year. Insurance exists to transfer that financial risk to an insurer in exchange for a manageable premium.
Without appropriate cover, you are personally absorbing risks that could bankrupt your business. With too much cover, you are spending money that could be invested in growth. The goal is to find the balance — and that's what this guide is for.
If you're in the first 90 days of starting a business, insurance is one of those "must sort soon" items. If you're already operating, a review now could save you thousands and ensure you're actually protected against your biggest exposures.
The main types of business insurance
Public liability insurance
Public liability insurance covers you if a member of the public is injured or their property is damaged because of your business activities. This includes clients visiting your office, customers in your shop, or members of the public affected by work you carry out at their premises.
Who needs it: Almost every business that interacts with the public, works on client sites, or has premises that people visit. Even if you work from home, if clients ever visit, you should have this cover.
Typical cover levels: Most policies offer between £1 million and £10 million in cover. For most small businesses, £2–5 million is sufficient. Don't reflexively go for the maximum — £10 million cover doesn't cost twice as much as £2 million, but it might be overkill for your actual risk.
What it does not cover: Injuries to employees (that's employers' liability), faulty products (that's product liability), or professional mistakes (that's professional indemnity).
Professional indemnity insurance
Professional indemnity insurance covers you if a client suffers a financial loss because of advice, services, or designs you provided. This includes errors, omissions, negligence, and breach of confidentiality.
Who needs it: Any business that provides advice, designs, or professional services — accountants, consultants, architects, software developers, marketing agencies, financial advisors. Some professional bodies and regulators require it as a condition of membership.
Why it matters: Even if you're confident in your work, a client unhappy with the outcome may still make a claim. The legal costs of defending yourself can be substantial even if the claim is unfounded. This is a case where cover for a £500,000 claim might cost £30–50 per month — a small insurance compared to the cost of defending yourself without it.
Employers' liability insurance
In the UK, employers' liability insurance is a legal requirement as soon as you hire your first employee. Under the Employers' Liability (Compulsory Insurance) Act 1969, the minimum cover level is £5 million. It covers compensation claims from employees who are injured or become ill as a result of their work.
If your business is ready to hire your first employee, this is non-negotiable. You must have it before they start.
Who is exempt: Sole traders with no employees. Some family businesses where all employees are close family members may also be exempt, depending on your jurisdiction.
Cost and consequences: In the UK, failure to have a valid policy can result in fines up to £20,000 per employee. So this isn't "nice to have" — it's "must have."
Product liability insurance
Product liability insurance covers claims arising from products you manufacture, supply, or sell that cause injury or property damage. This applies whether you made the product yourself or are reselling items from a supplier.
Who needs it: Any business that manufactures, imports, distributes, or sells physical products. If a product you sold causes harm, you can be held liable regardless of whether you manufactured it.
Contents and equipment insurance
This covers the physical assets of your business — computers, furniture, tools, stock, and other equipment — against theft, fire, flood, and accidental damage.
Who needs it: Any business with physical assets worth protecting. Even home-based businesses should consider this, as standard home insurance policies often exclude business equipment.
Important detail: Check whether your policy covers items outside your premises. If employees take laptops home or you transport equipment to client sites, you may need additional portable equipment cover.
Cyber insurance
Cyber insurance covers the costs associated with data breaches, cyber attacks, and other digital security incidents. This can include notification costs, forensic investigation, business interruption, and regulatory fines.
Who needs it: Any business that stores customer data, processes payments, or relies on digital systems. The cost of recovering from a data breach often exceeds the direct financial loss. The NCSC's small business guide and the ICO's personal data breach guidance both outline the notification requirements, reputational damage, and regulatory penalties that can be devastating for a small business.
Business interruption insurance
Business interruption insurance covers lost income and ongoing expenses if your business cannot operate due to an insured event — typically fire, flood, or other major incidents. It bridges the gap between the event and your return to normal operations.
Who needs it: Any business that would struggle to cover fixed costs (rent, salaries, loan repayments) if forced to stop trading temporarily. This is particularly important for businesses with physical premises. Paired with a guide to business continuity planning, this insurance becomes part of a broader risk-management approach.
Insurance you probably do not need
Here's where Relentify's philosophy of "don't pay for what you don't need" really applies. Not every policy is worth buying. Common add-ons that many small businesses can safely skip:
Key person insurance — Only relevant if your business would collapse without a specific individual and you need to cover the cost of finding and training a replacement. Most sole traders and micro-businesses do not need this.
Directors and officers insurance — Primarily relevant for larger companies with boards of directors. If you're a sole director of a small limited company, the risk is usually manageable without this.
Legal expenses insurance — Often bundled with other policies at additional cost. Check whether your existing policies already include legal defence costs before paying extra for a separate policy.
Personal accident insurance — Consider this only if you have no other income protection. Many people already have this through their personal insurance arrangements.
The key here: before adding anything, ask yourself "what actual risk does this protect me from?" If you can't articulate the answer in one sentence, you probably don't need it.
How to decide what you actually need
Step 1: Identify your risks
Start by listing everything that could go wrong. Think about physical risks (injury, property damage), financial risks (client disputes, late payments), digital risks (data breaches, system failures), and legal risks (regulatory compliance, employment disputes).
Write them down. Be realistic. Yes, a meteor could hit your office, but that's not a business insurance problem.
Step 2: Separate legal requirements from optional cover
Some insurance is legally required. Employers' liability is mandatory if you have employees. Certain professions require professional indemnity. Vehicle insurance is required for business vehicles. Start with these non-negotiable policies — you have no choice here.
Step 3: Assess the financial impact
For each remaining risk, estimate the potential cost. If a single incident could cost more than your business could absorb, insurance is worth considering. If the maximum realistic cost is relatively small, you might choose to self-insure — meaning you accept the risk and set aside funds to cover it.
Most small businesses are genuinely price-sensitive on insurance. This step helps you spend money only on the protection that matters.
Step 4: Get multiple quotes
Insurance premiums vary significantly between providers. Always get at least three quotes, and read the policy documents carefully. The cheapest policy is not always the best value — pay attention to exclusions, excess amounts, and cover limits.
Also: if you're keeping accurate records through well-organized business software (like accounting and CRM tools integrated in one place), insurers often recognize that as a sign of a well-managed business and may offer better rates.
Step 5: Review annually
Your insurance needs change as your business grows. Adding employees, moving to new premises, launching new products, or entering new markets can all change your risk profile. Review your policies at least once a year and adjust as needed.
Frequently Asked Questions
Q: Do I need all seven types of insurance? A: No. You need the ones that protect against your actual risks. A sole-trader accountant needs professional indemnity, public liability, and cyber cover. A plumber with two employees needs public liability, employers' liability, and product liability. A designer working from home needs professional indemnity. The types we've listed are the main ones — but not all apply to every business.
Q: How much should I budget for business insurance? A: It depends on your industry and size, but a rough benchmark: most small businesses spend £50–200 per month on core insurance policies (public liability plus one or two others). Employers' liability adds roughly £10–30 per month per employee. Cyber can range from £30–200 per month depending on your data exposure. Get quotes for your specific situation rather than guessing.
Q: Can I just self-insure instead of buying policies? A: Only partially. Some insurance is legally required (employers' liability, vehicle insurance). For optional cover, self-insuring means accepting the risk and setting aside cash reserves to cover potential claims. This makes sense if the maximum realistic cost is something you could pay. It does not make sense if a single claim could bankrupt you.
Q: Is cyber insurance worth it for a small business? A: If you store customer data, process payments, or operate online (which includes nearly every business now), a data breach could cost you thousands in notification, forensic investigation, and regulatory fines. Cyber insurance is generally worth it — usually £30–100 per month buys meaningful cover.
Q: What's an "excess" and should I choose a higher one to save money? A: The excess is the amount you pay before the insurer pays. Choosing a higher excess (e.g., £500 instead of £100) reduces your premium. Do this only if you could comfortably afford to pay that amount out of pocket if you made a claim. A £500 excess might save you 10–15% on premium — but only if you'd actually be able to pay £500 in an emergency.
Q: How do I know if I'm underinsured? A: Read your policy exclusions carefully. If a realistic claim falls outside your cover, you're underinsured. Also: if your cover limits seem low relative to the actual cost of the risk (e.g., £1 million public liability cover for a business operating on sites where serious injury could realistically cost more), you're underinsured. When in doubt, ask your insurance broker to review your cover against your actual risks.
Q: What happens if I don't update my insurer when my business changes? A: You could be in breach of your policy terms, and the insurer might refuse to pay a claim if circumstances have changed materially. Always notify your insurer when you hire employees, move premises, increase turnover significantly, or launch new products or services.
Common mistakes to avoid
Underinsuring to save money. A policy that doesn't cover the full potential cost of a claim is worse than no policy at all — it gives you false security while leaving you exposed.
Not reading the exclusions. Every policy has exclusions — circumstances where the insurer won't pay. Read these carefully. You'll find the real terms in the small print, not the marketing copy.
Buying bundled packages without checking. Insurers often bundle cover types at an attractive price. Check that you're not paying for cover you don't need and that cover limits are appropriate for each category.
Forgetting to update your policy. If your circumstances change — new employees, higher turnover, different premises — notify your insurer. Your existing policy may no longer provide adequate cover.
Choosing the cheapest option reflexively. The cheapest premium often comes with lower cover limits, higher excess, or more exclusions. Pay attention to what you're actually buying, not just the price.
Keeping costs manageable
Insurance is a necessary expense, but there are ways to reduce premiums without compromising cover:
- Increase your excess. A higher excess (the amount you pay before the insurer pays) typically reduces your premium. Choose an amount you could comfortably afford to pay.
- Improve your security. Better locks, alarm systems, fire prevention measures, and cybersecurity practices can all reduce premiums.
- Pay annually. Monthly payment plans often include interest charges. Paying annually is usually cheaper overall.
- Keep accurate records. Insurers look at how well-organized your business is. Accurate financial records, documented procedures, and clear operational systems help demonstrate a well-managed business — which can lead to better rates.
- Review competitor policies annually. Insurance is competitive. Get fresh quotes each year.
Don't delay getting insurance until something goes wrong. Start with the legally required policies, add the ones that protect against your biggest risks, and review everything annually. The cost of appropriate insurance is almost always less than the cost of the claim it would have covered.