How does a plastering business tell a subcontractor from an employee in Australia?

What actually decides whether a plasterer is a subcontractor or an employee?

According to the ATO, the critical difference is that an employee serves in the business and performs work as its representative, while an independent contractor runs their own business and provides services to further it. The Fair Work Ombudsman adds practical markers on top of that test, including who controls how the work is done, who carries the financial risk, who supplies the tools, how hours are set, and whether the arrangement is expected to carry on indefinitely.

Applied to a plastering crew, a fixer who turns up on a renovation site, sets their own hours, brings their own stilts and sanding gear, and can send another plasterer to finish the cornice run looks like a genuine subcontractor. A plasterer who is told which ceiling to sheet next, uses the business's scaffold, is paid an hourly rate, and has no real ability to delegate the job looks like an employee, whatever the paperwork says. The ATO is clear that a delegation clause only counts if it is genuine and could actually be used, not a clause sitting in a contract for show.

Why doesn't changing the label protect a plastering business if the arrangement is really employment?

The label on the paperwork does not decide the matter, and trying to use it to avoid obligations is illegal. The Fair Work Ombudsman says sham contracting happens when a business tells or represents to a worker that they are a contractor, when they are really an employee, without a reasonable belief that the contractor label is correct.

The Victorian Government's guidance on sham contracting sets out that under the Fair Work Act, a business cannot dismiss or threaten to dismiss an employee to re-engage them as a contractor doing the same work, and cannot make a knowingly false statement to persuade someone to become a contractor. In building and construction specifically, the Fair Work Ombudsman's page on contractors in the sector describes a normal chain, where a builder engages a company as a contractor, that company engages a plasterer as a subcontractor, and the plasterer engages an apprentice as an employee. Each link in that chain carries its own obligations.

Does workers compensation still apply to a subcontractor plasterer?

Often yes, depending on the state and the arrangement, because workers compensation law can treat a subcontractor as a worker even when the Fair Work tests say contractor. WorkCover WA says contractors and subcontractors may also be defined as workers under its Act depending on the circumstances of the arrangement.

In New South Wales, icare points to a SIRA tool to work out whether someone is a worker, a deemed worker or a contractor, with deemed worker classes including outworkers and contractors engaged under labour hire arrangements. icare's guidance on needing a policy lists markers of a genuine contractor, such as being hired for a particular task using their own skills and materials rather than being directed, not being paid by the hour, supplying their own tools, and handling their own tax. In Victoria, WorkSafe's claims manual describes general contractor provisions that can deem a person a worker of the hirer for premium purposes, unless WorkSafe determines the arrangement is part of the contractor's own independent trade or business.

A sole operator plasterer who renders for several different builders, using their own gear, looks like a genuine contractor under these tests too. A plasterer who works solely for one plastering business, every day, paid weekly, may be deemed a worker for workers compensation purposes regardless of the invoice they send. This is general information, not legal, tax or employment advice. Check your own situation with the body named here or a qualified adviser.

Why does getting this right matter to the margin on a sheeting and setting job?

Whatever you call the crew doing your sheeting, setting, stopping and sanding, subcontractor or employee, that labour cost has to land in cost of sales against the square metre rate you quoted it at, never buried in overhead. If it sits in the wrong bucket, the gross profit on every ceiling, bulkhead or render job looks healthier than it actually is.

This is where a lot of plastering businesses lose track without realising it. You quote a renovation job at a square metre rate that assumes a certain labour cost, whether that labour arrives as a subbie invoice or as wages. If the bookkeeping puts that cost into overhead instead of against the job, the margin on paper stays healthy while cash after a run of patching and renovation work is thin. Data first, this is a number you can see as it happens rather than guess at when the builder's payment finally lands.

What changes when AI agents take this paperwork off a plasterer's desk?

AI agents are software that do a job the way you would, following your prices, wording and rules, so they can keep subcontractor and wage costs sitting against the right job instead of drifting into overhead. That matters because a plasterer moving crew between subcontracting out a sheeting run and taking someone on as crew needs that cost captured correctly every time, not just on the jobs someone remembers to check.

Picture a plasterer who could not get an accurate cost of operations figure, because non-billable hours were loading overhead onto every job, making each ceiling and cornice job look unprofitable on paper. Stripping those non-billable hours back out dropped the figure so low it was clearly wrong as well. An AI agent was set up to pull the actual wages and overhead figures straight from the business's live job and finance data, working out the true cost of operations with billable hours properly factored in. Overhead now sits in its own bucket instead of being spread across every job, and the agent keeps that costing accurate as crew move between subcontracting and being taken on.

Where can you check the current rules?

• ATO: employee or independent contractor covers the core legal test and how delegation clauses are assessed.
• Fair Work Ombudsman: independent contractors covers the practical factors and sham contracting rules.
• Fair Work Ombudsman: contractors in building and construction covers contracting chains specific to this sector.
• WorkCover WA: covering your workers covers when a contractor may still be a worker for insurance purposes in Western Australia.
• Victorian Government: sham contracting covers the Fair Work Act provisions specific to building and construction.
• icare NSW: classifying workers covers the SIRA tool and deemed worker classes in New South Wales.
• icare NSW: do you need a policy covers the practical markers of a genuine contractor.
• WorkSafe Victoria: define a worker covers general contractor provisions for premium purposes in Victoria.

How does Data First Coaching approach this?

Data First Coaching, built by Greg Allan, starts from the plastering business's own job and finance data rather than from how the owner describes it. For this question, that means looking at where subcontractor invoices and wages actually land against each sheeting, setting and renovation job, because that is where a mislabelled or mis-booked cost usually starts, long before it shows up as thin cash at the end of a run of work. The Trade Business Intelligence reads that data alongside ten years of coaching trade businesses, powered by every member who contributes to it. The how, the systems and the setup are worked through inside the Academy, with members, because it is built for owners who are open minded, innovative and willing to share.