In most SMEs, everyone knows who the business leans on.
It is the sales director clients call first. The operations lead who keeps things moving without fuss. The founder who still carries half the commercial relationships in their head. The IT manager who understands the systems well enough to fix a problem before anyone else has worked out what has gone wrong.
Most businesses do not write this down. They just work around it. People get used to the fact that a few individuals carry more weight than their job title suggests. That works fine until something serious happens to one of them.
Research from Legal & General found that 59% of businesses believe they would have to stop trading in less than a year after the death or critical illness of a key individual. That is a stark figure, but it makes sense. In a lot of companies, one person’s absence does not just create grief and disruption. It creates a cash problem, a client problem and a leadership problem all at once.
The real risk is usually wider than one missing salary
When business owners think about losing a key employee, they often start with the obvious cost: replacing them.
That matters, but it is rarely the main issue.
The bigger problem is what happens in the weeks and months after the loss. Revenue can dip because of relationships that were tied to that person. Senior staff get dragged into operational work that was never meant to sit with them. Hiring becomes urgent, which usually means more expensive. Clients start asking sensible questions about continuity, and someone needs to answer them with confidence.
This is where businesses feel the strain. Not in theory. In day-to-day decisions.
A managing director who should be focused on planning, finance and growth ends up sitting in delivery meetings. A head of sales starts covering accounts instead of winning new work. A department head spends time firefighting internal issues because the person who used to steady everything is no longer there.
That lost management time is easy to overlook, but it is expensive. Strategy slips quietly. Then it becomes a commercial issue.
Why this sits in the background for so long
Most businesses know they have key people. They just do not always treat that dependence as a financial risk.
Part of the reason is practical. Owners are busy. They are dealing with payroll, margins, recruitment and customers. Unless there has already been a scare, planning for the death or critical illness of a key person can feel like something for later.
Part of it is cultural too. Some firms are uncomfortable talking about it at all. It feels morbid, or disloyal, or too remote to prioritise. So the risk stays where a lot of business risks sit until something forces attention onto them: in the background.
If a business would be materially weaker without one individual, that is not just an HR issue. It is a balance sheet issue and a continuity issue.
Where key person insurance actually helps
Key person insurance is not complicated in principle. The business takes out cover on someone whose loss would seriously damage the company. If that person dies, the policy pays a lump sum to the business.
That money gives directors choices at a point when choices are usually limited.
It can fund an urgent recruitment search. It can pay for an interim contractor with the right technical or commercial experience. It can support cashflow while revenue is unsettled. It can also help reassure important clients, lenders or suppliers that the company has the means to steady itself.
Just as important, it can protect the time of the senior team. That part is often missed.
Without a financial buffer, directors and department heads tend to absorb the problem personally. They take on more day-to-day oversight, more client management and more operational pressure because the business has no room to buy in support quickly. With a lump sum available, the company has a better chance of keeping its leadership focused on the bigger picture instead of pulling them into every immediate gap.
That is the real value. Not just money, but breathing space.
What businesses commonly get wrong
A practical point here: companies often underestimate how specific key person risk is.
They assume a replacement can be found in a few months because that is what the org chart says. In reality, the difficult part is not always finding somebody with the right title. It is replacing the trust, technical judgement or client confidence the original person had built over years.
This is especially true in owner-led firms and specialist SMEs. Advisers see it regularly. A business says it has a capable wider team, but when you look closely, one person still signs off the difficult cases, holds the most valuable client relationships, or knows how the core process really works when something unusual happens.
That does not mean every business needs large amounts of cover on several people. There is a trade-off. Premiums are a real cost, and not every role justifies them. Some firms can absorb the risk better than others. But many companies are more exposed than they admit, especially if growth has outpaced planning.
A more useful way to think about “key”
The term “key employee” can sound overblown if you do not use insurance language every day. It is better to make it practical.
A key person is someone whose death would force the business into difficult decisions fast.
That might be because they bring in revenue. It might be because they hold specialist knowledge. It might be because they manage a handful of client relationships that would be hard to transfer cleanly. In some businesses it is the founder. In others it is a finance lead, a technical manager, or the person who quietly keeps compliance and operations from unravelling.
The point is not status. It is about consequence.
An example that shows the value properly
Take a growing professional services firm with 25 staff. One of its directors leads several of the company’s biggest client accounts and is responsible for a large share of annual revenue. He is also the person junior managers go to when a difficult client issue needs sorting quickly.
If he dies unexpectedly, the immediate problem is not just grief and internal shock. The firm now has major accounts that need close handling, a pipeline that may weaken, and a leadership team that has to split its time between client retention, staff management and trying to recruit someone credible. That can easily knock the business off course for six to twelve months.
With key person insurance in place, the company receives a lump sum. It uses part of that money to bring in an experienced interim consultant, part to support a focused recruitment process, and part to protect working capital while the client book settles. That does not remove the disruption, and it does not pretend people are interchangeable. But it stops one loss from turning into several separate business problems at once.
That is a much more realistic picture of what the policy is for.
Planning for this is not pessimistic
Some business owners resist key person insurance because they think it means planning around worst-case scenarios instead of getting on with growth.
I would argue the opposite. A company that depends heavily on a few people and has no backup plan is not growth-focused. It is exposed.
Good businesses insure risks that would hurt them badly, even if they hope never to claim. They insure premises, stock, cyber exposure and liability. For many SMEs, the loss of a key person would be more damaging than any of those.
If that is true in your business, it deserves the same level of attention.
The useful takeaway
A sensible starting point is not to ask whether key person insurance sounds worthwhile in general. It is to look at your business plainly and decide where the concentration risk sits.
Which individuals would create immediate financial or operational strain if they were gone? How long would it take to replace what they actually do, not just their title? What would that period cost in lost revenue, management time and client confidence?
Once those answers are clear, the insurance decision becomes much easier. You are no longer buying a product in the abstract. You are deciding whether the business has enough protection against a risk it already carries.
