Business
Commercial combined premiums explained: cutting costs without cutting cover
Cheap commercial insurance comes from an accurate risk, not cut cover. See what moves a commercial combined premium and safe ways to bring it down.
Cheap commercial insurance is really about paying a fair price for the right cover: the premium on a commercial combined policy is driven by your trade, how much you insure, your claims record, your turnover and wageroll, and how well the premises are protected. The honest ways to lower it are to present those facts accurately, manage the risks insurers price for and choose sensible excesses, not to cut sums insured below what things are really worth.
That last point matters more than most "cheap business insurance" tips admit. Making business insurance cheap by underinsuring can look like a saving on day one and cost far more when you claim.
Which insurer offers the lowest commercial insurance prices?
There is no single answer, and anyone promising one is guessing. A commercial combined policy bundles several covers (typically buildings, contents and stock, business interruption, public and products liability and employers' liability) and each part is priced on your own details. The insurer that is keen on a small office may have little appetite for a workshop using heat or a takeaway with deep-fat fryers.
So the lowest-priced commercial insurance for one business can be uncompetitive or unavailable for another. What you can control is the quality of the information behind the quote and the shape of the risk you are asking someone to cover.
What actually sets the price of commercial combined insurance?
The Association of British Insurers says employers' liability premiums are based on factors including the nature of your business, the number of people you employ and your previous claims history. The same logic runs through the rest of a combined policy. These are the main things underwriters look at:
| Rating factor | What the insurer looks at | Why it moves the price |
|---|---|---|
| Trade and activities | What you actually do, including any processes involving heat, chemicals, machinery or work away from your premises | Some activities lead to more frequent or larger claims |
| Sums insured | The value declared for buildings, contents, stock, tools and equipment | A higher value at risk means a bigger potential claim |
| Turnover | Annual turnover, and sometimes how it splits between activities | Often used to price public and products liability, and to size business interruption cover |
| Wageroll and headcount | Number of staff and total wages, sometimes split between manual and clerical work | Commonly used to price employers' liability |
| Premises and security | Building construction, alarms, locks, fire protection and location | Affects the chance of theft, fire or flood damage |
| Claims history | Past claims, their size and what was done to stop them happening again | Insurers read history as a guide to future losses |
On top of the premium, Insurance Premium Tax is charged at the standard rate of 12% on most general insurance, including business policies.
Why accurate figures matter more than low ones
Under the Insurance Act 2015, a business buying insurance has a duty to make a fair presentation of the risk. That means disclosing every material circumstance you know or ought to know, in a way that is reasonably clear, with facts that are substantially correct.
If you get it wrong without being deliberate or reckless, and the insurer would have charged more had it known, Schedule 1 of the Act lets it reduce a claim proportionately. If the breach was deliberate or reckless, it can avoid the policy altogether and keep the premium. Understating turnover or wageroll to get a lower quote is a false economy for exactly this reason.
How cutting cover can backfire: the average clause
This is the part most guides to cheap business insurance leave out. Many property policies contain an average clause. The Financial Ombudsman Service explains that average usually reduces a claim in line with the proportion of underinsurance: if the sum insured is £300,000 but should have been £500,000, the insurer pays 60% of the claim. Not every policy has one, so it is worth reading the wording.
Because average reduces the claim itself, it can affect partial losses too, not just a total loss.
For example, with made-up round numbers:
- Stock is worth £80,000 but insured for £40,000, so it is insured for half its value.
- A burst pipe causes £10,000 of stock damage.
- With average applied, the claim could be settled at £5,000, less any excess.
That is not a theoretical risk. January 2026 research commissioned by the ABI and carried out by Public First, Small Business, Big Risk, found that underinsurance among small firms is driven by owners not understanding products, deliberate decisions to insure less than the full value, and failing to review cover as the business changes. It also found that 47% of SMEs surveyed said they had not checked whether their amount of cover was still appropriate within the last 12 months.
Buildings should be insured for the cost of rebuilding, not the market value. The Ombudsman notes that a proper rebuild figure includes debris removal, professional fees such as architects' and surveyors' costs, legal fees, VAT and the extra cost of complying with government requirements.
What can't you cut to make business insurance cheap?
Some cover is not optional. If you employ people, GOV.UK says you must have employers' liability insurance covering at least £5 million from an authorised insurer, starting as soon as you become an employer. You can be fined £2,500 for every day you are not properly insured, and £1,000 for not displaying your certificate where staff can see it (a website or intranet counts).
There are exceptions, for example if you only employ close family members such as a spouse, parent, child or sibling. If your business runs vehicles, motor cover is a separate legal requirement; our guide on why van insurance is so expensive covers what drives that side of the bill.
Honest ways to lower commercial insurance costs
None of these will necessarily lower a premium, but each one addresses something insurers actually price for.
- Get your figures right. Check turnover, wageroll, staff numbers and sums insured against your latest accounts and valuations. Overstating costs money; understating risks average and proportionate claim reductions.
- Describe your trade precisely. A vague or broad description can be rated as the riskiest activity it might include. Spell out what you do and what you do not do.
- Show your risk management. Alarms, approved locks, fire extinguishers, safe storage of flammable materials and written health and safety procedures all help an underwriter judge the risk. If a policy makes something a condition, such as setting the alarm, keep to it. Section 11 of the Insurance Act 2015 stops an insurer relying on a broken risk-reducing term to refuse a claim, but only where you can show the breach could not have increased the risk of the loss that actually happened.
- Explain your claims history. If you have had a claim, say what changed afterwards. New procedures or equipment can help an underwriter see the cause has been dealt with.
- Choose a voluntary excess you can afford. A higher excess can lower the premium, but you pay it on each claim, so check how it applies across each section of the policy.
- Remove cover you genuinely do not need. If you no longer hold stock or no longer work away from the premises, telling the insurer can reduce the price. Removing cover you do need is a different matter.
- Review before renewal, not after. The same ABI-commissioned research found that around half of SMEs reported a significant business change since last reviewing their insurance. Giving a broker time before renewal lets them approach the market properly.
Is a broker useful for cheap commercial insurance?
Commercial combined cover is rarely a straightforward online buy, because the wording, endorsements and sums insured matter as much as the price. A specialist broker can explain what each section covers, check your figures and present your risk to insurers who write your trade.
If you want to see what that looks like, you can get commercial combined insurance quotes through Kompare: you fill in a short form and a specialist FCA-authorised broker from our panel contacts you to talk through your business and the quotes available. Kompare is not an insurer and does not give advice, and the broker will discuss the cover with you directly.
For more on which businesses typically use this kind of policy, see what commercial combined insurance is and which businesses use it.
When comparing quotes, it helps to line them up section by section: the sums insured, the liability limits, the excesses, the business interruption indemnity period and any conditions such as security requirements. Two policies with different premiums may not be covering the same thing.