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The Performance Tax Calculator

Every organisation pays a Performance Tax. Most never see it, because the cost is spread across a dozen lines of the budget and nobody adds it up. This adds it up.

So how much is your organisation paying?

We built this calculator to answer that. It takes industry figures from Gallup, ACAS and CIPD, applies them to your numbers, and gives you a figure you can actually use in a board meeting. Every assumption sits at the cautious end of the research, so what you get is the floor, not the ceiling.

Your numbers
Slide, or type any number in the box
Include on-costs: pension, NI, benefits
Set to the CIPD average of 2% of headcount
Set to the ACAS average of 1.25% of headcount
Change the assumptions

These four are pre-set to the cautious end of the published research. If you think your organisation sits somewhere else, move them.

Gallup finds 8–15% in most organisations200 people
Gallup finds 15–25%400 people
Gallup range 15–35%
When poor performance goes unaddressed. Range 8–15%
CIPD and ACAS range £4,000–£12,000
ACAS range £15,000–£30,000

Your Performance Tax

£4,575,000

Built on published research from Gallup, ACAS and CIPD.

This is a model, not an audit. It applies published averages to the numbers you entered, so treat it as a starting point for a conversation rather than a finished piece of analysis.

The bigger question: is your culture what's driving that number?

Culture isn't a vibe. It's infrastructure.

Like a garden, it grows whether you tend it or not. Leave it alone and the weeds win.

Most organisations haven't tended theirs in years. It shows up in exactly the places you have just priced: rising grievances, growing settlements, constant turnover. That figure is the symptom. Culture is usually the cause.

So the real question is this. Can your current culture actually deliver the strategy you've set?

That is what our Culture Audit answers.

Ask us about the Culture Audit

Six real costs we left out on purpose

These are genuine and they are material. We excluded them because they are hard to attribute cleanly, which means your actual cost is almost certainly higher than the figure above, not lower.

Productivity drag across everyone else

Hard to attribute directly to performance management, and it varies a lot by sector.

Recruitment churn and replacement

Significant when underperformance is mishandled, and partly captured in your attrition data already.

Manager time lost to disputes

Real and material, but almost impossible to separate from general management workload.

Legal risk and tribunal exposure

Unpredictable but real. Some organisations self-insure, others carry it.

Absence driven by team friction

Sitting inside your absence data, but not isolated to performance issues.

Cultural and reputational damage

Hard to quantify, but it moves engagement, employer brand and customer experience.

Send yourself the result

We'll email you a summary of the figures you've just built, so you can put it in front of your board rather than trying to remember it.

One email with your figures. Nothing else unless you ask.

Or start the conversation now

Whether you want to talk through the model, explore how to reduce your Performance Tax, or just think out loud about putting performance back at the heart of your strategy, we'd welcome it. There's no charge and no commitment.