SME CollectiveStep 1 of 3
Back to home

How this is calculated

Plain English, no jargon. Here are the benchmarks, formulas, and assumptions behind every Headcount Health Check result — so you can judge for yourself how much weight to put on it.

What you put in

  • Trade type — selects which industry benchmark we compare you against.
  • Annual revenue — last 12 months' total turnover (ex-GST).
  • Team size (FTE) — including you. Part-timers count as 0.5.
  • Annual wages bill — total gross wages including any owner drawings.
  • Subcontractor costs (optional, available for all trades) — when entered, we exclude these from the revenue figure used for benchmarking so we're comparing the revenue your own team actually generates.

The formulas

All-in wages   = wages × 1.14            (ACC, KiwiSaver, holidays, tools)
Adj. revenue   = revenue − sub costs     (only when subbies entered)
RPE            = adj. revenue ÷ headcount
Labour %       = all-in wages ÷ adj. revenue
Ideal FTE      = adj. revenue ÷ benchmark midpoint
Gap            = headcount − ideal FTE
Profit leak    = gap × (all-in wages ÷ headcount)   when gap > 0

The 1.14× wage loading is a rough rule-of-thumb for the real cost of an employee in NZ once ACC, KiwiSaver, holiday loading, tools and PPE are factored in. Your actual loading might be a bit higher or lower depending on how you treat owner draws and what you provide.

Benchmarks by trade

These ranges are drawn from publicly available NZ trades industry averages and our own experience working with owners. They're a starting point for the conversation — not a hard rule.

TradeRevenue / FTELabour % of revenue
Building$220K$280K28.0%34.0%
Plumbing$200K$260K30.0%36.0%
Electrical$210K$270K28.0%34.0%
Civil$240K$320K26.0%32.0%
Roofing$210K$280K28.0%34.0%
Other$200K$280K28.0%34.0%

When subcontractors or labour-only contractors are used:

TradeAdjusted RPEAdjusted labour %
Building$150K$220K28.0%38.0%
Plumbing$150K$210K30.0%40.0%
Electrical$155K$215K28.0%38.0%
Civil$200K$320K22.0%32.0%
Roofing$150K$220K28.0%38.0%
Other$150K$220K28.0%38.0%

Adjusted ranges are lower because the comparison is on value-added revenue (turnover minus subcontractor costs) rather than headline turnover.

How the status (green / amber / red) is decided

  • On track (green) — gap under 0.3 FTE, labour % inside benchmark, RPE at or above the benchmark floor.
  • Worth a look (amber) — gap between 0.3 and 0.6 FTE, or labour % over benchmark, or RPE below benchmark.
  • Time for a closer look (red) — gap over 0.6 FTE, or both labour % over benchmark and RPE below benchmark.

What this tool can't see

A few numbers can't capture a whole business. Results may not reflect your reality if any of these are true:

  • Big seasonal swings in revenue or workload.
  • Project-based income (a single large job distorting the year).
  • Unusual gross margins — high-margin work needs less labour leverage.
  • Owner draws not run through the wages line.
  • Heavy plant / materials businesses where labour isn't the main cost.
  • Regional cost-of-labour differences.

This is why the result is a starting point for a conversation, not a verdict. If the numbers don't feel right, they probably aren't telling the whole story — but they're usually pointing at something worth looking at.

Scott, founder of SME Collective

Built by

Scott · SME Collective

Scott works with NZ trades and construction owners on the tricky bits — team shape, margin, and the calls you only really want to make once. The Headcount Health Check is the same conversation he has in person, just distilled into five minutes.

He's the founder of SME Collective and works one-on-one with business owners across NZ — helping them push past the $1M ceiling and build businesses that don't need them there every minute of the day, and support their lifestyle and wellbeing.

Ready to give it a go? Run the check →