Subcontractor vs Employee — The Legal Difference Every Tradie Needs to Know (Before the ATO Comes Knocking)

You've got more work than you can handle — good problem to have. So you bring in another bloke to help. Maybe he's got his own van, his own tools, his own ABN. He works on your jobs, you pay him, everyone's happy. Until the ATO turns up and tells you that bloke was never a subbie — he was your employee. And you owe super, payroll tax, WorkCover premiums, and maybe years of back-pay.

That's not a scare story. That's happening to tradies right now, and the numbers are brutal. The ATO and Fair Work have been crawling through the construction industry for years, and they're getting better at spotting a sham contracting arrangement from a mile away. If you've ever hired someone on an ABN and treated them like an employee, you've been sitting on a liability bomb.

So let's cut through the bullshit. What actually makes someone a subcontractor vs an employee, how do tradies get it wrong, and what do you need to change today to keep yourself out of trouble?

This isn't one of those compliance boxes you can ignore because nothing's happened yet. The difference between a subcontractor and an employee is a multi-thousand-dollar-per-person-per-year difference in what you owe — super guarantee (SG) at 11.5%, payroll tax, workers comp, long service leave accrual, annual leave, sick leave, unfair dismissal protection. If the person you're paying as a subbie is legally an employee, you're on the hook for all of it, potentially backdated.

And the penalties? The ATO can issue an employer obligation direction forcing you to pay super. Fair Work can order back-pay of entitlements. And if they decide you knew better and did it anyway — that's sham contracting, and the fines go up to $18,780 per breach per person. Per breach. For every pay cycle. Do the maths.

There's no single rule that decides it. The courts and the ATO use a multi-factor test, and they weigh the whole picture. But in practice, a few factors dominate.

Control is the big one. If you tell someone how to do the work — what time to start, what order to do things, what tools to use, what to wear — that's employment. A genuine subcontractor controls their own method. You can specify the outcome (sand this wall to 120-grit, install these four outlets in this room) without controlling how they get there. Tell them to start at 7am and wear your branded polo? You're looking at employment.

Substitution is the second biggest. Can the person send someone else to do the work in their place? A real subcontractor can — they're running a business, they can delegate. An employee can't; they're personally required to do the work. If your contract says "must perform the work personally," that's a strong indicator of employment.

Tools and equipment matter too. If you provide everything — the van, the tools, the materials, the mobile phone, the safety gear — that leans toward employment. If they bring their own gear and cover their own costs, that's subcontracting. Most tradies get this one right, but the grey zone is when you start supplying bigger ticket items.

Risk — a real subcontractor takes financial risk. They quote a price, and if the job runs over, they eat the difference. They invoice you. They carry their own insurance. If they're late, they're the one wearing the liquidated damages. An employee just clocks in and gets paid for their time regardless.

Integration — is the person part of your business or running their own? If they're on your Facebook page, driving your van with your logo, wearing your uniform, attending your team meetings — they look like an employee. If they have their own business name, their own website, their own ABN, and they work for other clients — that's a business.

Most tradies don't set out to do the wrong thing. You need help, you find a bloke with an ABN, you pay him, end of story. But here's where it falls apart:

You treat them like an employee anyway. You book them onto your schedule. You tell them what time to be where. You provide the materials. You supervise them on site. You pay them an hourly rate. You deduct PAYG tax. By the time you've done all that, you've got an employee with an ABN wrapper, and the ATO will see straight through it.

The "only works for you" problem. If someone works exclusively for your business — no other clients, no other income — that's a massive red flag. A genuine contractor has multiple revenue streams. Even one other client changes the picture dramatically.

Long-term arrangements. Someone who's been working for you for two years, same hours every week, same jobs — that's moving from contractor toward employee territory. The longer they've been with you, the harder it is to argue they're genuinely in business on their own account.

The written contract says subcontractor, but the behaviour says employee. The ATO doesn't care what your contract says. They look at what actually happens on the ground. Your contract could say "independent contractor" in bold on every page — if you're controlling their work, providing the tools, and paying them hourly, they're an employee.

First — audit everyone you're paying through an ABN right now. Run them through the multi-factor test honestly. If any of them look like they might be employees, talk to an employment lawyer or a tax advisor who knows construction. Don't just keep going and hope it doesn't catch up with you.

Second — write proper contracts. A solid subcontractor agreement should spell out: the scope of work (outcome-based, not process-based), the right of substitution, that they supply their own tools and insurance, that they bear commercial risk, that they can work for others, and that they invoice you rather than you paying them on a timesheet. And the contract needs to be followed — not just signed and ignored.

Third — change how you manage them. Stop putting subbies on your daily schedule. Stop telling them when to start and finish unless it's a site access requirement. Stop providing all the gear. Pay them on invoice, not on a timesheet.

Fourth — for genuine employees, just employ them properly. It's not that much more expensive than you think once you factor in what you're paying for subbies, and it's a hell of a lot cheaper than back-paying two years of entitlements after Fair Work calls.

Fifth — get your insurance right. If you're using subbies, make sure they have their own public liability and workers comp (or that you've got a deemed workers comp policy that covers them). In some states, principals can still be liable for a subbie's injury even when the subbie is genuinely self-employed.

Calling someone a subcontractor doesn't make them one. The ATO, Fair Work, and the courts look at the reality of the relationship — who controls the work, who provides the gear, who takes the risk. If your arrangement looks like employment and smells like employment, it doesn't matter what label you put on it.

The safe path is simple: if they're working under your direction, on your schedule, with your tools — put them on the books properly. If they're genuinely running their own business with their own gear, their own methods, and their own clients — treat them like one, in writing and in practice.

Either way, ignoring the distinction is the one option that's going to cost you.

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