Underinsurance is one of the most damaging problems an Irish business owner can carry into a claim, and most never know it is there until the worst day arrives. You suffer a fire, a flood, or a serious escape of water; you lodge your claim expecting your policy to do its job; and then the insurer’s loss adjuster informs you that your sum insured was too low and your payout will be reduced accordingly. This article explains what underinsurance is, how it proportionally cuts a settlement, why sums insured drift out of date, and what your options are if you discover the problem at claim time.
What underinsurance actually means
Underinsurance happens when the sum insured on your policy, the figure you are insured up to, is lower than the true value of what it is meant to cover. That can apply to your building, your contents, your stock, your plant and machinery, or all of them at once. The sum insured is the number you, or your broker, set when the policy was arranged. The insurer prices your premium on that figure and, critically, expects it to reflect the genuine cost of rebuilding or replacing the property if the worst happens.
The trap is that underinsurance does not announce itself. Your policy looks active, your premium is paid, and everything appears in order. The shortfall only surfaces when you claim, because that is the moment the insurer assesses what your property was really worth against the figure you insured it for. If the two do not match, the consequences fall on you.
The average clause: how a low sum insured cuts your payout
Most commercial property policies in Ireland contain what is known as an average clause, sometimes called the condition of average. It is the mechanism insurers use to reduce a claim when a property is underinsured. The principle is proportional: if you insured for only part of the true value, the insurer will pay only that same proportion of your loss, even for a partial loss that sits well below your sum insured.
A simple worked illustration
The figures below are rounded examples used purely to show how the arithmetic works. They are illustrative only and are not a prediction, a quote, or a guarantee of any outcome on your own policy.
Imagine a commercial building that would genuinely cost 1,000,000 euro to rebuild, but it is insured for only 500,000 euro. The sum insured is therefore half of the true value. Now suppose a fire causes 200,000 euro of damage, a partial loss. You might reasonably expect the full 200,000 euro to be paid, since it is comfortably under your 500,000 euro sum insured. Under the average clause, however, the insurer applies the same proportion you were insured for. Because you covered only 50 percent of the real value, the settlement is reduced to roughly 50 percent of the loss, around 100,000 euro, leaving you to absorb the other 100,000 euro yourself.
That is the sting of underinsurance. You do not simply lose the gap between your sum insured and the rebuild cost; you lose a proportion of every claim, including modest ones. The more underinsured you are, the deeper the cut.
Reinstatement value versus indemnity value
A great deal of underinsurance comes down to a misunderstanding of how property should be valued for insurance. There are two very different bases, and confusing them is a common cause of a sum insured being set far too low.
- Reinstatement value is the full cost of rebuilding or replacing the property as new, with no deduction for age or wear. For buildings it includes demolition, site clearance, professional fees, and compliance with current building regulations. This is the basis most commercial property policies are written on, and it is almost always higher than people expect.
- Indemnity value is the value of the property in its actual condition immediately before the loss, with a deduction for age, wear, and depreciation. It puts you back in the same position you were in, not a brand new one. It is usually a lower figure than reinstatement.
The danger is insuring on a reinstatement policy while having set the sum insured at something closer to a market or indemnity figure. A business owner who insures the building for what they think it is worth on the open market, rather than what it would cost to rebuild from the ground up, can be badly underinsured without realising it. Rebuild cost and market value are not the same number, and for many commercial premises the rebuild cost is significantly higher.
Why sums insured drift out of date
Even a sum insured that was accurate the day the policy was arranged can quietly become inadequate. Values move, and policies often do not move with them. The most common reasons a figure drifts out of date include:
- Construction and material inflation: building costs in Ireland have risen sharply in recent years. A rebuild figure set several years ago can fall well short of today’s cost.
- Fit-out and improvements: a refurbished kitchen, a new shopfront, upgraded plant, or an extension all add value that may never have been reported to the insurer.
- Growth in stock and contents: a business that has expanded its range or holds more stock than it did at renewal can be carrying far more value than the policy reflects. Read more on protecting these figures on our business contents and stock insurance claim page.
- Automatic renewals without review: rolling a policy over year after year without revisiting the sum insured lets a once-accurate figure fall steadily behind reality.
How to check and avoid underinsurance
The good news is that underinsurance is preventable. A little attention before a claim is worth far more than any argument after one. Practical steps include:
- Obtain a professional reinstatement cost assessment for your building from a chartered surveyor, rather than estimating it yourself or relying on market value.
- Review your sums insured at every renewal, and update them whenever you carry out a fit-out, extension, or significant equipment upgrade.
- Take account of construction cost inflation between assessments, and ask your broker about index linking so cover keeps pace.
- Value contents, stock, and plant on the correct basis, and revisit those figures as the business grows.
- Check whether your policy is written on a reinstatement or an indemnity basis, and make sure your sum insured matches that basis.
If you want to understand how cover responds across the full picture of a building loss, our guide to the commercial property insurance claim process sets out what to expect at each stage.
What to do if you discover you are underinsured at claim time
Discovering underinsurance in the middle of a claim is stressful, but it does not always mean the outcome is fixed. The way a claim is prepared, valued, and presented can make a real difference to how the average clause is applied and to the final figure agreed. This is not the moment to take the insurer’s first assessment at face value.
Among the things worth examining are whether the rebuild or replacement valuation the insurer is relying on is itself accurate, whether the loss has been measured correctly, and whether every element of your entitlement under the policy has been properly accounted for. A loss assessor works exclusively for you, the policyholder, not the insurer. The insurer appoints a loss adjuster to manage its exposure; a commercial loss assessor prepares and negotiates the claim to secure the fullest settlement you are entitled to under the terms of your policy.
At Commercial Insurance Claim Solutions, founder Trevor Kelly MSCSI MRICS and our team handle the valuation, documentation, and negotiation so that, even where underinsurance is in play, your claim is presented as strongly and accurately as the policy allows. We work on a no win, no fee basis, and the firm is regulated by the Central Bank of Ireland, Reg. No: C423441. Nothing here is legal advice, and no specific settlement outcome can be promised; what we can do is make sure your claim is built and argued properly from the start.
Talk to us before underinsurance costs you
If you are worried your sums insured may be out of date, or you have suffered a loss and the insurer is raising the average clause, get expert eyes on it early. Book a free claim assessment with our team. It is free, there is no obligation, and it could be the difference between a payout that falls short and one that does what your policy was meant to do.
