The charge rate trap: why the cheapest labour hire quote can cost you the most
Let's start with the part nobody argues about.
If one supplier quotes you a lower charge rate than another, you save money on every hour worked. Multiply that across a crew and a financial year and the saving looks significant. It's easy to see why procurement teams choose on rate. It's the number on the page.
The trouble is that it's only half the sum.
What the charge rate doesn't show you
A charge rate tells you what an hour of labour costs when everything goes to plan. It says nothing about what happens when the person in that role doesn't last.
When a worker leaves in the first few weeks, the business pays again, just not in a place anyone is looking:
- Starting again. Every new starter needs to be shown the site, set up and brought up to speed from scratch.
- Supervisor time. Your leading hands and supervisors spend their shifts training, correcting and covering instead of running the floor.
- Lost output. A new starter rarely works at full pace in week one. A crew that turns over constantly never quite reaches full pace at all.
- Overtime. Someone has to cover the gap while the role is refilled, and it's usually your most reliable people, at overtime rates.
None of these costs appear on the supplier's invoice. They land in payroll, in production reports, in the site manager's stress levels. That's exactly why they're so easy to miss.
How the maths works
Picture two suppliers. One quotes a little less per hour. Across a full crew and a full year, that small gap adds up to a saving that looks well worth having.
Now picture the cheaper supplier's placements leaving more often. Every extra departure means finding someone new, getting them set up, pulling a supervisor off the floor to train them, losing output while they find their feet, and covering the gap with overtime. Each of those costs is usually far bigger than a few dollars an hour.
That's why the sum that matters is simple:
Rate saving − the cost of extra turnover = the real number
Once each departure is properly costed, it can take only a few extra departures to wipe out a whole year's saving. Every site, role and crew is different, so the only way to know where you stand is to run your own numbers.
Running your own numbers
Here's a simple way to test it on your own operation. Take one role you've filled through labour hire in the last twelve months and answer three questions:
- How many people have filled that role in that time?
- Roughly how many supervisor hours did each new starter take to get up to speed?
- How much overtime was worked covering the gaps between them?
Put a dollar figure on each, then compare the total against the charge rate saving you gained by going with the cheaper supplier. For many businesses, the saving disappears faster than they expect.
So what should you actually compare?
Charge rate still matters. But it should sit alongside the things that predict what a placement will really cost you:
- Retention. How long do their placements typically stay on site?
- Sector knowledge. Do they understand your floor, your equipment and your shift patterns, or are they filling generic slots?
- Fit. How well do they get to know the role and your site before sending someone?
- Partnership. Do they check in after day one, and act quickly if a placement isn't working?
A supplier who charges slightly more but sends people who stay is almost always cheaper over a year. The maths just takes longer to show up.
Once someone is on site, the first month matters most. Our one-page new starter checklist covers the small things that make people want to stay, and none of them cost a cent.
Where does your business sit?
If you're not sure how exposed your workforce is right now, we built a tool to help. The Workforce Risk Check is eight questions and takes about two minutes. You'll get a Low, Medium or High risk score straight away, plus a practical checklist matched to your result.
And if you'd rather talk it through, I'm always happy to have a straight 15-minute conversation. Email me at dennis.reubens@blackbearsolutions.com.au or call 0451 523 432.
Black Bear Solutions provides recruitment and labour hire across NSW, VIC and QLD, specialising in manufacturing, logistics, construction, waste management, executive, IT and office support.
