The Cheapest Business Insurance for a Sole Trader in the UK (Without Leaving Yourself Exposed)

Every quote page you land on opens with the same promise. Cover from £5 a month. From £5.20. From £5.36. From £7. Five different insurers, five different numbers, all of them technically true and none of them the price you are going to pay.

Here is what that number actually is, why the cheapest policy is a worse idea for a sole trader than for almost anyone else, and how to get genuinely low pricing on cover you would still be glad to hold on your worst day.

What “from £5 a month” really means

Read the small print under those headlines and the same phrase appears again and again: the cheapest 10% of our customers paid this or less.

That is a bottom-decile figure. By definition, 90% of that insurer’s customers paid more. It is a real number describing a real group of people — the lowest-risk trades, the smallest turnovers, the lowest cover limits — and it tells you almost nothing about what your business will be quoted.

It also means the “from” prices cannot be compared with each other. Simply Business quotes £5.36 a month for sole traders on its book between January and June 2026. Hiscox quotes from £5.20 a month, averaged across policies sold between April 2025 and April 2026. AXA quotes £77 a year, or £7 a month, for its cheapest 10% between January and March 2026. Those are five different populations of customers over five different windows. Putting them side by side looks like a comparison and is not one.

The number worth knowing is the average, and it is roughly a third higher:

• Public liability — cheapest 10% pay £60.54 a year; the average is £78.75
• Professional indemnity — cheapest 10% pay £80.42 a year; the average is £93.05
• Employers’ liability — cheapest 10% pay £114.86 a year; the average is £200.16

So a realistic budget for a one-person business carrying public liability alone is somewhere around £60 to £90 a year, not the £5 a month the banner suggests. Which end you land on has very little to do with which logo is on the policy.

Your trade sets the price, not the brand

This is the part the comparison pages skate over. Look at four real quotes for the same core cover:

• Cleaner in Manchester — £86.49 a year for £1m public liability
• Barber in Edinburgh — £100.08 a year for £1m public liability plus £1,000 of tools cover
• Electrician, one to two years trading, no employees — £130.24 a year
• Nail technician, five years’ experience, no employees — £188.98 a year

Same country, same year, same broker, and the top of that range is more than double the bottom. Nothing about shopping harder closes that gap, because it is not a pricing quirk — it is the insurer’s read on how likely a claim is and what it would cost. A cleaner working in offices and a nail technician working on people are simply different bets.

Which means the first question is not “who is cheapest?” It is “what does my trade actually need?” Get that right and the price largely settles itself.

The one policy that is not optional

Almost every “cheapest insurance” article leads with public liability. Public liability is optional. The compulsory one gets a paragraph near the bottom, if it appears at all.

So, plainly: employers’ liability insurance is required by law as soon as you become an employer, under the Employers’ Liability (Compulsory Insurance) Act 1969. The minimum cover is £5 million. If you are not properly insured you can be fined £2,500 for every day you go without it. If you fail to display the certificate where staff can see it, or cannot produce it for an inspector, that is a further £1,000.

You are exempt if you employ nobody, or if the only people you employ are close family members, or if the person works outside England, Scotland and Wales. Most sole traders are exempt on day one and stop being exempt the moment they take on their first helper — and “employee” here is broader than people expect. Casual staff, temporary cover, an apprentice, someone in for a fortnight over a busy period: all of them can trigger it.

If you are about to hire for the first time, this is the line item to sort before the first shift, not after. Nothing else on this page carries a £2,500-a-day downside.

Why “cheapest” is riskier for a sole trader specifically

This is the argument that changed my view of the whole question, and it is a point of UK law rather than an insurance sales line.

A sole trader is not a separate legal entity. There is no company standing between you and a claim, no corporate veil, no limit on liability. If a claim lands and your policy does not respond — because the limit was too low, because you never bought that cover, because you described your work loosely to save £15 — the claim does not stop at the business. It continues into your personal finances.

Now hold that against the numbers. The average public liability premium is £78.75 a year. The average claim is £3,377. That is a ratio of roughly 43 to 1. Shaving £20 off an £80 policy saves you the price of a takeaway and moves you closer to a position where a routine, entirely ordinary claim comes out of your own account.

Cheap is a perfectly good goal. Cheap at the cost of the cover responding is not a saving, it is a bet with your house on the other side of it.

What each cover actually does

Public liability handles third parties — the people and property around your work. A customer trips over your toolbox. A client’s laptop goes off the desk during a meeting at their home. A delivery driver is hurt on a site you are working on. It covers injury, property damage, product liability and the legal costs attached. It does not cover your own staff, your own property, claims about your professional advice, or anything deliberate.

Professional indemnity covers the work itself — a client saying your advice, design or service caused them a financial loss. Nobody has to be injured. If people pay you for judgement rather than physical labour, this is usually the more important of the two.

Employers’ liability covers your staff, and is the compulsory one described above.

After that: tools and equipment cover, business contents, stock, legal expenses, personal accident, cyber if you hold customer data. Useful, all of them, and none worth buying until you can describe the exact claim it would pay.

If you are weighing the first two against each other, we have gone through the distinction in detail in our guide to public liability versus professional indemnity.

Choosing your cover limit

Limits usually run £1m, £2m, £5m and £10m, and the jump between them is far cheaper than people assume — the price of a policy is driven mostly by your trade, not by the ceiling.

The practical rule: buy the limit your contracts demand, then check whether the next one up costs meaningfully more. Local authority work, construction sites and most public sector contracts commonly specify £5m or £10m, and turning up with £1m means losing the job. If nothing in your work names a figure, £1m to £2m is the normal starting point for a one-person business.

What you should not do is pick the biggest number for peace of mind. A £10m limit on a home-based tutoring business is money spent on a scenario that cannot happen.

How to actually get the price down

Everything here lowers the bill without thinning the cover:

• Buy for your trade, not for the catalogue. The single biggest overspend is a bundle of covers bought because they were offered, not because the risk exists.
• Match the limit to your contracts. Not to your anxiety.
• Raise the excess. Agreeing to fund more of a small claim yourself pulls the premium down, and if you hold a modest cash buffer the trade usually pays off.
• Pay annually where it is discounted. Monthly instalments frequently carry interest that is not shown as interest.
• Describe your work accurately. Understating what you do to reach a lower band is the one “saving” that reliably destroys the policy at the moment you need it.
• Re-quote every renewal. Loyalty is not rewarded, and a clean claims record is worth real money at a new insurer.
• Use more than one route. Brokers such as Simply Business place your risk across a panel; direct insurers such as Hiscox, AXA and Direct Line price their own book. The same business can get materially different answers from each, and which one wins varies by trade — administrative and desk-based work tends to price well direct, while higher-risk manual trades often do better through a panel.

So what is the cheapest, really?

For a low-risk, desk-based sole trader with no employees, the honest floor for £1m of public liability is around £55 to £65 a year, and roughly £79 a year is the average across all trades. Add professional indemnity and you are looking at perhaps £140 to £170 a year for the pair. Take on your first employee and employers’ liability adds around £115 at the cheap end and £200 on average — and stops being a choice.

There is no single cheapest insurer, because the cheapest insurer for a Manchester cleaner is not the cheapest for an Edinburgh barber. What there is, is a cheapest correct policy: the lowest quote you can find for cover that names your trade accurately, carries the limit your contracts require, and includes employers’ liability the moment anyone works for you.

Find that number and you have done the job. Go below it and you have not bought cheaper insurance — you have bought less of it, and as a sole trader, the difference lands on you personally.

If you are not yet sure which of these covers your business genuinely runs a risk of needing, start with our overview of what a small business actually needs to insure. And if the reason you are trimming costs is that you are trying to fund growth, our guide to UK business growth funding covers the cheaper options before you start cutting cover.

Frequently asked questions

Is business insurance a legal requirement for a sole trader in the UK?

Only one is. Employers’ liability insurance is compulsory as soon as you employ anyone, with a minimum of £5 million of cover. Public liability and professional indemnity are not legally required for sole traders, although client contracts — local authority work in particular — frequently demand them.

What is the cheapest public liability insurance for a sole trader?

The lowest advertised prices sit around £5 to £5.40 a month, but those are the cheapest 10% of each insurer’s customers. The average is about £78.75 a year. A low-risk desk-based trade can realistically expect £55 to £90 a year for £1m of cover; manual trades pay considerably more.

How much is employers’ liability insurance?

The cheapest 10% pay around £114.86 a year and the average is £200.16. It is compulsory from your first employee, and the fine for going without is £2,500 for every day you are uninsured, plus £1,000 if you fail to display the certificate.

Do I need employers’ liability if I only hire someone casually?

Usually yes. The requirement covers temporary, casual and apprentice workers, not just permanent staff. The main exemptions are businesses employing only close family members and workers based outside England, Scotland and Wales.

Should I buy £1m or £5m of cover?

Buy what your contracts specify. Public sector and construction work commonly requires £5m or £10m; for a one-person business with no such requirement, £1m to £2m is the normal starting point. Raising the limit is cheaper than most people expect, but paying for £10m you will never use is simply an overspend.

Is it cheaper to go direct or through a broker?

It depends on your trade rather than on the route. Brokers place your risk across a panel of insurers, while direct insurers price their own book — and the same business can get very different answers from each. Getting two or three quotes for identical cover is the only reliable way to find out which works for you.

Figures in this article reflect UK market data published between January and July 2026 and are general information, not financial advice. Premiums depend on your trade, location, turnover, cover limit and claims history. Always check current terms with the provider before buying.