Contractor vs. Employee: Getting the Classification Right

Every few weeks, I get a conversation that goes something like this:

"I'm paying Sarah $500 a week. She's got an ABN. So she's a contractor, right? What do I need to do?"

And the answer is: probably not a contractor. But I don't know for sure, because having an ABN tells me almost nothing about her actual employment classification.

This confusion costs businesses real money. Not in a vague, hypothetical way. In penalties, back-payment claims, and legal exposure.

Why ABN doesn't equal contractor

An ABN (Australian Business Number) is just a tax registration. It means someone is registered to do business in Australia. That's it. You can have an ABN and still be an employee. You can also be working for someone without an ABN and still be a legitimate contractor.

The classification of "contractor" vs. "employee" is about something completely different. It's about the nature of the working relationship, not the tax registration.

Here's what determines whether someone is actually a contractor or an employee:

The practical tests

The ATO and Fair Work have specific tests to determine employment status. It's not one single factor — it's a whole picture. But here are the main things they look at:

Control

Do you control how, when, and where the work is done? If Sarah has to be at your office from 9–5, answer emails within an hour, and do things exactly your way, she's probably an employee. If she controls her own schedule and methods, she's more likely a contractor.

Integration

Is the work integral to your business? If you couldn't run your business without Sarah, she's probably an employee. If she's doing discrete projects you could outsource to anyone, she might be a contractor.

Mutual obligations

Do you have to provide work, and does she have to do it? Employees usually have mutual obligations — you provide the work, they do it. Contractors are more transactional — you pay per project or result.

Availability

Does she work for you exclusively, or can she work for others? Exclusive arrangements suggest employment. Working for multiple clients suggests contracting.

Equipment and tools

Who provides the equipment? Employees usually use employer-provided tools. Contractors usually supply their own.

Tax responsibilities

Employees expect their employer to manage tax, super, and compliance. Contractors typically manage their own taxes and don't get employer super.

The reality is: most of the people I see classified as "contractors" are actually employees in disguise. They're working fixed hours, at your location, doing core business work, under your control. The ABN is just a tax number they grabbed so they could work.

Why misclassification costs money

If the ATO or Fair Work audits you and finds that someone classified as a contractor is actually an employee, the problems stack up quickly:

• Unpaid superannuation. You owe super contributions going back, plus interest. This can be thousands.
• Unpaid PAYG tax. You should have been withholding tax from their pay. If you didn't, you owe it.
• Unpaid leave entitlements. Employees are entitled to annual leave, sick leave, and other entitlements. You owe these as a lump sum.
• Workers compensation. If they were injured on the job and classified as a contractor, the workers comp insurance doesn't cover them — and you're liable.
• Penalties. The ATO applies penalties for misclassification, usually 10% of the unpaid tax.

I've seen businesses owe $20,000+ in back-payments because they classified three or four "contractors" incorrectly. That's money they didn't budget for, and it usually comes when they can least afford it — during an audit or when they're trying to grow.

How to get it right

If you're thinking about hiring someone, or you've already started paying them and aren't sure about the classification:

Step 1: Document the arrangement

Write down the terms of engagement. How much are they paid? How often? When do they work? What's the scope? Is it ongoing or project-based? Are they exclusive to you or working for others?

Step 2: Ask yourself the questions

Go through the test factors above. If most of them point to "employee," they're probably an employee.

Step 3: Get professional advice

This is not something to guess on. Talk to your bookkeeper or accountant. Describe the arrangement in detail, and let them advise. It usually takes 15 minutes and saves you thousands.

Step 4: Get it in writing

Once you've decided, put it in a contract. An employee contract or a contractor agreement, clearly spelling out the terms. This doesn't guarantee protection (the ATO looks at reality, not just what the contract says), but it shows you acted in good faith.

The quick rule of thumb

If you're unsure, ask yourself: "If I had to describe this person to my accountant in one sentence, what would I say?"

• "Sarah works in my office from 9–5, does core business work, I tell her what to do." = Employee
• "Sarah does digital design projects for us on an ongoing basis, she works from home, she sets her own schedule." = Could be contractor
• "We hired Sarah for a one-off website redesign. She's doing it her way, on her timeline, then it's done." = Contractor

What happens next (action plan)

If you've got people working for you and you're not 100% sure about their classification:

1. Book a conversation with your bookkeeper or accountant. Bring the details of the arrangement. This is worth getting right.
2. If they should be employees, set up a payroll system immediately. This means managing tax withholding, superannuation, and Single Touch Payroll submissions.
3. If they should be employees but you've been paying them as contractors, you'll need to address back-payments. This isn't fun, but it's better than being audited and owing penalties on top.
4. Get proper contracts in place. Not a template from the internet — real employment agreements that reflect Australian law.

Common questions