By Greg Allan, tradesman and creator of Data First Coaching
Why can calling an operator a contractor cost an earthmoving business money it never sees?
For an earthmoving contractor, whether an operator is treated as a contractor or an employee is not just a legal question, it is a costing question. The operator's wage or schedular payment, fuel, servicing and machine hours all have to be recovered inside the dry hire or wet hire rate charged out, and if the engagement sits on the wrong side of the line those costs can go missing from the job margin altogether.
A site cut or trenching job can look like it made money on the quote and still leave nothing in the account once the float to site, the tipping fees and a few wet days are taken out. Most earthmoving contractors are not trying to get this wrong, they are busy running plant and crew, but a gap in understanding where a cost truly sits can quietly erode a margin that looked fine on paper. Bulk earthworks and drainage jobs with a long run of machine hours feel the pinch hardest, because a small misallocation on the day rate compounds over the whole job.
How does an earthmoving business tell a contractor from an employee in New Zealand?
You check this against the legal tests, not against habit or what the invoice happens to say. According to Employment NZ, the gateway test asks whether the operator has a written agreement saying they are an independent contractor, can work for someone else, can choose when they work or subcontract the job, can decline extra work without the arrangement ending, and had a real chance to get advice before signing. If every part of that test is met, the operator is treated as a contractor.
The gateway test came into law in February twenty twenty-six and is not retrospective, so an agreement signed before it took effect is not automatically covered by it. Where the gateway test is not met, the relationship falls back to the control test described in Inland Revenue's interpretation guideline, which looks at how much the business directs the work and the way it is done, the hours set, and the method used. Inland Revenue also points out there is no single test, and that the working conditions actually agreed, who provides the excavator or bobcat and the major gear, who decides the hours, who sets the standard, carry more weight than the label on the paperwork.
What tax obligations follow from each side of the line?
If an operator is genuinely a contractor, you pay them as a schedular payment rather than wages. Inland Revenue describes schedular payments as payments made to contractors doing certain kinds of work, mainly the supply of labour, with tax deducted differently to salary or wages. A contractor paid this way completes a Tax rate notification for contractors (IR330C) so the right rate is deducted, and the Employer's guide (IR335) sets out how withholding tax is deducted from those payments.
If the operator is really an employee, PAYE and the usual employer obligations apply instead, and getting the classification wrong can leave an earthmoving contractor finding out later that costs it had allocated as a schedular payment should have been treated as wages, with obligations it did not budget for in the job costing. What applies to a particular arrangement depends on the facts of that engagement, so check your own situation against the linked pages or with a qualified adviser.
This is general information, not legal, tax or employment advice. Check your own situation with the body named here or a qualified adviser.
What about health and safety responsibilities when you engage a contractor operator?
Paying someone as a contractor does not hand off responsibility for safety on your site. WorkSafe says a self-employed contractor running their own excavator or bobcat on a job is both a PCBU and a worker, and as a PCBU must ensure, so far as is reasonably practicable, the health and safety of anyone they influence or direct, such as a labourer helping on a trenching or drainage task.
This matters for an earthmoving contractor engaging subbies for rock breaking, civil work or extra machine hours during a busy run, because WorkSafe is clear that a PCBU cannot contract out of its health and safety duties or hand that responsibility down the contracting chain simply by changing how someone is paid.
How do you stop this being guesswork for every new operator you take on?
You settle it once per engagement, from the actual agreement and the job and pay data for that operator, rather than from memory of how the last contractor was set up. Keeping who owns the excavator or bobcat, who sets the hours, and how the job is paid against the real record means the answer comes from the arrangement itself, not a feeling about how things have always been done on your sites.
This is where a data first approach to the numbers earns its keep. The true cost of an operator's time, whether paid as wages or a schedular payment, fuel, servicing and machine hours, needs to sit against the dry hire or wet hire rate it is meant to recover, so you can see whether a site cut or a run of bulk earthworks actually cleared a margin once the float and the tipping fees are counted. AI agents, which are software that does a job the way you would, using your own prices, wording and rules, can hold the engagement details for every operator and flag a new arrangement that does not match the gateway test before the first invoice goes out. AI agents can also keep each operator's cost sitting against the right job in your costing, so the dry hire and wet hire rates you charge keep recovering what they are supposed to, instead of the gap showing up later as a margin nobody can explain.
Where can you check the current rules?
- Employee or contractor? - Employment New Zealand's gateway test and the written agreement conditions for a contractor.
- Self-employed or employee - Inland Revenue's guidelines on what points to self-employment or employment.
- IG0009 interpretation guideline - Inland Revenue's control test for deciding employment status.
- Schedular payments - Inland Revenue on payments made to contractors instead of wages.
- Tax rate notification for contractors (IR330C) - the form a contractor completes so the right withholding rate is deducted from schedular payments.
- Employer's guide (IR335) - Inland Revenue's guide to deductions from schedular payments.
- Managing health and safety through the contracting chain, Part A - WorkSafe on PCBU duties for self-employed contractors.
- Contracting chain duties - WorkSafe on why a PCBU cannot contract out of its health and safety duties.
How does Data First Coaching approach this?
Data First Coaching, created by Greg Allan, starts with the owner's own job and pay data through the Trade Business Intelligence, not with an explanation of how the business works. For an earthmoving contractor, that means looking at what each operator actually costs against the dry hire or wet hire rate it sits inside, and whether the engagement matches the records behind it, before assuming the problem is the quote or the client. Often the real issue sits further back than it first appears. The how, the records to keep and the agents to build around them, is worked through inside the Academy, with members, because the Trade Business Intelligence is powered by every member, for owners who are open minded, innovative and willing to share what they learn.
