How much is professional indemnity insurance for a small business?
Reviewed by Matthew Bartlett, Director, Apex Insurance Brokers Limited · Last reviewed 2026-08-05
In short: There is no single price for professional indemnity (PI) insurance. Your premium is calculated from your business, not a fixed rate. The main drivers are your turnover or fee income, the type of work you do, the cover limit you choose (commonly £1m, £2m or £5m), your claims history and how risky your sector is. Change any of these and the price moves.
Small-business owners often expect a price list for PI insurance. Insurers do not work that way. Two firms in the same postcode can pay very different premiums because the risk they carry is different. Understanding the drivers below tells you far more than any headline figure, and it helps you present your business in a way that earns a fairer price.
What actually moves your premium
An underwriter is trying to answer one question: how likely is it that this business faces a claim, and how expensive could that claim be? Every rating factor feeds into that judgement.
- Turnover or fee income. This is usually the single biggest driver. Higher income generally means more clients, more contracts and larger potential exposures, so premiums tend to scale with it.
- The work you do. The specific professional activities matter enormously. Advice that clients rely on for major financial or safety decisions carries more risk than low-stakes support work, and is priced accordingly.
- The cover limit you choose. A higher limit of indemnity means the insurer could pay out more, so it costs more. See the section below on choosing a limit.
- Claims and circumstances history. Past claims, or even notified circumstances that could become claims, signal risk. A clean record helps; a recent claim usually raises the price.
- Sector and profession. Some professions are inherently higher risk, or are required to hold PI by a regulator or professional body. Underwriters rate each sector on its own claims experience.
- Contracts and client type. Working for large corporates, the public sector or overseas clients, or signing contracts with onerous liability terms, can increase exposure and premium.
- Experience, qualifications and controls. Relevant qualifications, documented processes, written engagement terms and quality controls all reassure an underwriter and can support a better price.
Choosing a cover limit: £1m, £2m or £5m
The limit of indemnity is the most you can claim back from the policy. It is one of the few drivers fully within your control, and it directly affects both your price and your protection. There is no universally "correct" limit — the right figure depends on the size of contract you take on and any minimum your clients or regulator require.
| Generic limit | Typically suits | Effect on price |
|---|---|---|
| £1m | Smaller firms with lower-value contracts and no higher contractual requirement. | Lowest of the three, all else equal. |
| £2m | A common middle option, often the minimum specified in client contracts or framework agreements. | Higher than £1m, but not double the price. |
| £5m | Larger contracts, public-sector work, or where a client or professional body demands a higher limit. | Highest of the three, though the extra cost per pound of cover often reduces at higher limits. |
A useful rule of thumb: do not simply pick the cheapest limit. Check your client contracts, tender documents and any professional-body rules first, because they often set a minimum you must meet. Buying too little cover can leave you personally exposed to the shortfall.
Want a figure built around your actual turnover, activities and required limit — not a guess?
Get a PI quote →Why two similar businesses pay different prices
Imagine two small consultancies with the same turnover. One works on modest projects for local clients, keeps written engagement terms for every job and has never had a claim. The other takes on large corporate contracts, works to tight deadlines and had a dispute notified last year. Even with identical revenue, the second business represents more risk to an insurer, so it will usually pay more.
This is why comparing your quote to a friend's, or to an online average, rarely helps. The number only makes sense in the context of your specific risk profile. Small changes — tightening your contracts, adding qualifications, keeping clean records — can genuinely influence what you pay over time.
How a broker helps you get a fair price
A broker's job is not simply to find the cheapest number. It is to make sure the cover matches your real exposures and that your business is presented accurately to insurers. A well-prepared submission can be the difference between a fair quote and an inflated one.
- Right-sizing the limit and terms so you are neither underinsured nor paying for cover you do not need.
- Presenting your business well — describing your activities, controls and history in the way underwriters want to see, which can support a keener price.
- Accessing more than one market, so your risk is placed with an insurer that understands your profession rather than the first one to respond.
- Checking the small print, including exclusions, excess levels and whether cover is written on a claims-made basis, so a cheap headline price does not hide a gap.
- Reviewing at renewal as your turnover, contracts and risk change year to year.
You can start the process online and let our team build a quote around your specific circumstances. Request a professional indemnity quote here.
Common questions
Is PI insurance cheaper for a very small business?
Generally, lower turnover and fewer, lower-value contracts mean lower premiums, because the insurer's potential exposure is smaller. But activity type, chosen limit and claims history still apply, so a small high-risk firm can pay more than a larger low-risk one.
Does a higher cover limit always cost a lot more?
Not proportionally. Moving from £1m to £2m or £5m raises the premium because the insurer could pay out more, but the extra cost per pound of cover often reduces as the limit rises. Always check whether a client contract or professional body sets a minimum limit before choosing.
Can I lower my PI premium?
Over time, yes — maintaining a clean claims record, using clear written contracts and terms of business, holding relevant qualifications and choosing an appropriate (not excessive) limit can all help. A broker can advise on which changes are likely to matter most for your profession.
Apex Insurance Brokers Limited is authorised and regulated by the Financial Conduct Authority (FRN 724952). This guide is general information, not advice on a specific policy or a substitute for your policy wording.