What is your real absence cost? Not the HR report. The actual number.

Somewhere in your organisation there is a spreadsheet that says your absence rate is 3.2%. Maybe 4%. Someone in HR updates it quarterly. It goes into a board pack. Nobody asks any questions. Everyone assumes it is normal.

It is not normal. It is expensive. And you are not measuring it properly.

That 3.2% is a headcount calculation. It tells you how many days were lost. It does not tell you what those days cost. It does not include the overtime paid to cover the gaps. It does not include the agency staff brought in at short notice. It does not include the productivity lost by the team picking up the slack, or the manager spending two hours a week chasing return-to-work meetings they were never trained to run. It does not include the customer impact when service levels drop because you are running a skeleton crew every Monday morning.

When you add all of that up, the real cost of absence in a business of 200 people is typically somewhere between £400,000 and £800,000 a year. Not the HR number. The P&L number.

Now do the maths your board has never done. If your net profit margin is 10%, which for most mid-market businesses is optimistic, every £1 of unmanaged absence requires £10 of revenue to replace it. That £400,000 to £800,000? Your business needs to generate between £4 million and £8 million in additional revenue just to stand still. At a 5% margin, double it.

Nobody frames absence as a revenue problem. Everyone frames it as an HR problem. The moment you translate it into “how much do we have to sell to pay for this,” the conversation changes completely. That is the moment your CFO puts their coffee down.

You are not managing absence. You are tolerating it. And it is costing you more than you realise.

Most organisations have never done that calculation. They look at the rate, not the cost. They manage the symptom, not the cause. They have a policy that nobody follows consistently and trigger points that nobody enforces because the managers do not have the confidence or the training to have the conversation.

The uncomfortable truth is that most absence is manageable. Not all of it. But a significant proportion is driven by inconsistency, by managers who avoid difficult conversations, by a process that exists on paper but not in practice. That is not a people problem. That is a leadership problem. And it will not fix itself.