Business Insurance for Sole Traders: What Do You Actually Need?

Business insurance is one of those things that feels like an unnecessary cost — right up until the moment you need it. A client slips on your premises, a piece of work goes wrong, your tools get stolen from your van, or you are off sick for three months with no income. Without the right cover, any of these could seriously damage or end your business.

But the insurance market is confusing. There are dozens of policy types, and insurers are very good at selling you cover you do not need. As a sole trader, you need to be strategic about where you spend your money.

This guide breaks down the main types of business insurance, explains which ones are legally required, and helps you decide what is genuinely worth paying for.

What Is Legally Required?

Let us start with the good news. For most sole traders, very little business insurance is actually required by law. There are just two scenarios where insurance becomes a legal obligation.

Employers' Liability Insurance

If you employ anyone — even one person, even part-time — you are legally required to have employers' liability insurance with a minimum of £5 million cover. This protects you if an employee is injured or becomes ill because of their work.

The fine for not having valid employers' liability insurance is £2,500 for every day you are without cover. You must also display your certificate of insurance (or make it available electronically) where employees can see it.

If you are a sole trader with no employees, you do not need this. But the moment you take on staff, it becomes mandatory.

Motor Insurance for Business Use

If you use a vehicle for business purposes — visiting clients, making deliveries, travelling between work sites — your motor insurance must cover business use. A standard social, domestic, and pleasure policy will not cover you if you have an accident while driving for work.

Many sole traders do not realise their personal car insurance excludes business use. Check your policy. If it does not cover business driving, you need to either upgrade it or take out a separate commercial vehicle policy.

Professional Indemnity Insurance (Sometimes Required)

While not a general legal requirement, professional indemnity insurance is mandatory for certain regulated professions. Solicitors, accountants, financial advisers, architects, and some healthcare professionals must have PI cover as a condition of their professional registration.

If you belong to a professional body, check their rules. Even if PI insurance is not legally required for your specific profession, your clients may require it as a condition of their contracts.

Public Liability Insurance

Public liability insurance is probably the most commonly purchased policy among sole traders, and for good reason. It covers you if a member of the public — which includes clients, suppliers, or passers-by — is injured or their property is damaged because of your business activities.

Who Needs It?

If you interact with the public or visit client premises in any capacity, public liability insurance is strongly recommended. It is especially important for:

• Tradespeople: plumbers, electricians, builders, decorators, gardeners — anyone working in or around other people's property
• Event-based businesses: caterers, photographers, entertainers, market stall holders
• Fitness and wellbeing: personal trainers, yoga instructors, therapists working in-person
• Cleaning businesses: working in client homes or offices
• Dog walkers and pet sitters: responsible for animals and visiting client homes

How Much Cover?

Most sole traders opt for between £1 million and £5 million of cover. The cost difference between these levels is often surprisingly small — perhaps £5 to £15 per month extra for higher cover. Many clients and venues require a minimum of £2 million, so starting at that level makes sense.

Typical Costs

For a low-risk sole trader (office-based consultant, tutor, writer), public liability insurance might cost as little as £40 to £80 per year. For higher-risk roles (construction, cleaning, fitness), expect to pay £100 to £300 per year.

Professional Indemnity Insurance

Professional indemnity (PI) insurance covers you if a client suffers a financial loss because of your professional advice, services, or work. This is different from public liability, which covers physical injury and property damage.

Who Needs It?

PI insurance is essential if your work involves giving advice, providing a professional service, or delivering work that a client relies on for decisions. This includes:

• Consultants and advisers: management, IT, marketing, financial
• Designers and creatives: graphic designers, web developers, architects
• IT professionals: software developers, systems integrators, data specialists
• Accountants and bookkeepers: anyone handling financial information
• Trainers and coaches: especially those providing business or professional coaching

What It Covers

PI insurance typically covers:

• Legal defence costs if a client sues you
• Compensation awarded to the client
• Costs arising from negligence, errors, or omissions in your work
• Breach of confidentiality claims
• Intellectual property disputes
• Loss or damage to documents or data in your care

Typical Costs

For a sole trader consultant, PI insurance usually costs between £100 and £400 per year, depending on your profession, turnover, and the level of cover. Higher-risk professions and higher turnover levels attract higher premiums.

Tools, Equipment, and Stock Insurance

If your business depends on physical tools, equipment, or stock, losing them could stop you working entirely. A plumber without tools, a photographer without cameras, or a market trader without stock cannot earn.

What It Covers

This type of insurance covers the cost of repairing or replacing your business equipment if it is stolen, damaged, or destroyed. Policies vary, but typically cover:

• Tools and equipment (at home, in your vehicle, and on-site)
• Stock and materials
• Computers and electronic equipment
• Business contents in your premises

Is It Worth It?

If your tools and equipment are worth more than you can comfortably replace out of pocket, the answer is yes. A set of professional tools can easily be worth £5,000 to £20,000, and replacing them at short notice while you are unable to work is a double hit.

For tradespeople, tool insurance is practically essential. Van theft is a significant problem in the UK, and standard van insurance often provides limited cover for contents.

Typical Costs

Tool and equipment insurance for sole traders typically costs between £80 and £300 per year, depending on the total value insured and the level of risk.

Income Protection Insurance

This is the one most sole traders overlook, and arguably the one that matters most. Income protection pays you a replacement income if you are unable to work due to illness or injury.

Why It Matters

As a sole trader, if you stop working, your income stops. There is no employer to pay you sick pay. Statutory Sick Pay does not apply to the self-employed. You might get Employment and Support Allowance (ESA) if you have paid enough National Insurance, but the basic rate is just £90.50 per week — nowhere near enough to cover most people's bills.

If you were unable to work for three months, six months, or a year, could you survive financially?

How It Works

Income protection policies pay a monthly benefit — typically 50% to 70% of your average earnings — after a waiting period (usually called a deferred period). The deferred period is how long you must be unable to work before the policy starts paying. Common deferred periods are 4 weeks, 8 weeks, 13 weeks, or 26 weeks.

Longer deferred periods mean lower premiums. If you have savings to cover a few months, choosing a 13-week or 26-week deferred period can make the policy much more affordable.

Typical Costs

Income protection costs vary enormously depending on your age, health, occupation, and the level of cover. As a rough guide, a 35-year-old sole trader in a low-risk occupation might pay £30 to £60 per month for a policy covering £2,000 per month of benefit with a four-week deferred period.

It is worth noting that income protection premiums are not tax-deductible as a business expense, but any payout you receive is usually tax-free.

Business Premises Insurance

If you work from a dedicated business premises — a workshop, studio, office, or shop — you need insurance for that space. If you rent, your landlord's insurance will cover the building itself, but it will not cover your contents, stock, or liability.

If you work from home, check whether your home insurance covers business use. Many standard home insurance policies exclude business activities, so you may need to either inform your insurer and pay an additional premium, or take out a separate business policy.

Cyber Insurance

If your business stores client data, processes payments, or relies heavily on technology, cyber insurance is increasingly worth considering. It covers the costs associated with data breaches, hacking, and cyber attacks — including notifying affected individuals, legal costs, and business interruption.

For most sole traders, cyber insurance is in the "nice to have" category rather than essential. But if you handle sensitive personal or financial data, it is worth getting a quote. Policies for sole traders and small businesses can start from as little as £100 per year.

How to Buy Business Insurance

Comparison Sites

For straightforward policies like public liability and PI insurance, comparison sites like Simply Business, Hiscox, and PolicyBee make it easy to get quotes from multiple insurers. You can often buy a policy online in 15 minutes.

Insurance Brokers

If your business is unusual, high-risk, or you need multiple types of cover bundled together, an insurance broker can be helpful. They will assess your needs and find policies from the wider market, including specialist insurers.

Combined Policies

Many insurers offer combined business insurance policies that bundle public liability, PI, tool cover, and other protections into a single package. These can be more cost-effective and simpler to manage than buying separate policies.

A Quick Summary

| Insurance Type | Legally Required? | Who Needs It? | |---|---|---| | Employers' Liability | Yes, if you have employees | Any employer | | Motor (business use) | Yes, if you drive for work | Most sole traders | | Professional Indemnity | Sometimes (regulated professions) | Advisers, consultants, creatives | | Public Liability | No, but strongly recommended | Anyone interacting with the public | | Tools/Equipment | No | Tradespeople, photographers, anyone with valuable kit | | Income Protection | No | Every sole trader (seriously) | | Business Premises | No, but sensible | Anyone with a dedicated workspace | | Cyber | No | Businesses handling sensitive data |

Let Accounted Track Your Insurance Costs

Insurance premiums are an allowable business expense, which means they reduce your taxable profit. Accounted makes it easy to track these costs alongside all your other expenses, and Penny, your AI bookkeeper, will categorise your insurance payments automatically. Start your free trial and take control of your business finances today.

Related Reading

• Do I Legally Need a Business Bank Account as a Sole Trader?

• 50 Business Name Ideas for UK Sole Traders (By Industry)

• Simple Business Planning for Sole Traders: A Practical Template

Start your free trial and see how Accounted simplifies your bookkeeping.

Accounted keeps your books sorted automatically so you can focus on running your business. See Accounted →