Contractors and subcontractors can add a lot of value to your business. If you plan on hiring one, it’s important to know how they’re different, who’s liable for what, and what agreements you actually need.
A contractor is hired directly by you to deliver a specific scope of work. A subcontractor is hired by that contractor to carry out part of that scope. Simple enough in theory. In practice, the contractor vs subcontractor distinction determines who’s liable when things go wrong, what paperwork you need, and whether the ATO considers your arrangement genuine contracting or something else entirely. Most business owners don’t think hard about this until a dispute arrives. A subcontractor cuts corners. The client calls you. And suddenly your agreements don’t say what you thought they said. Sort the structure before work starts, not after. It’s also worth understanding the difference between a contractor and an employee. Contractors, subcontractors, and independent contractors all fall under the category of a ‘contractor’ and are not ’employed’. They’re not bound by an employment contract, which is exactly why a legally binding Contractor Agreement matters so much.
?
Fast facts
- A contractor works directly for the client; a subcontractor works for the contractor. The client and subcontractor usually have no direct legal relationship with each other.
- As the contractor, you’re still liable to the client for subcontractor work. If your subcontractor does a poor job, the client holds you accountable. Not them.
- You need two separate agreements: one with your client, one with your subcontractor. One document trying to cover both leaves real gaps in liability protection.
- Since August 2024, the “whole of relationship” test applies in Australia. Calling someone a contractor in your agreement isn’t enough anymore. How the relationship actually works in practice is what gets assessed.
- Subcontractors can be entitled to superannuation even if they hold an ABN. If they’re mainly supplying their own labour, super obligations may still fall on you.
What is a Contractor?
Contractors are engaged directly by clients to deliver a defined outcome, under a services contract rather than an employment agreement. They’re not employees. They run their own business, supply their own ABN, manage their own tax, and generally control how and when they complete the work. The label covers a wide range of situations. A sole-trader IT consultant on a three-month engagement. A construction firm running an entire build. A graphic designer brought in for one project. What they share is the same: the relationship is governed by contract, not by the Fair Work Act 2009 (Cth) employment provisions. Here’s where many business owners get tripped up. Calling someone a “contractor” in your agreement doesn’t automatically make them one. Since 26 August 2024, a new test applies to most companies: the whole of relationship test. Under this test (which applies to any Pty Ltd), the Fair Work Commission looks at how the relationship actually works in practice, not just what the contract says. Control the hours, supply the tools, expect them to show up personally every day without being able to delegate? That starts to look like employment regardless of what your contract calls it. Misclassifying an employee as a contractor means back-pay, superannuation shortfalls, and potential Fair Work penalties. It’s not a technicality to paper over.Contractor vs employee: what courts actually look at
No single factor is decisive. The Fair Work Commission weighs the full picture:- Control: who decides how, when, and where the work gets done?
- Tools and equipment: does the worker supply their own, or do you?
- Delegation: can they send someone else, or must they do it personally?
- Integration: are they part of your business, or running a service from outside it?
- Financial risk: do they bear commercial risk if the job goes badly?
- Exclusivity: are they free to work for others, or locked to you?
What is a Subcontractor?
Subcontractors are engaged by contractors, not by clients. They carry out a specific portion of the contracted work and their legal obligations run to the contractor, not to the client. The client and subcontractor have no direct legal relationship unless a separate agreement has been put in place. Think about who does what. A builder takes on a renovation contract with the homeowner. They bring in an electrician and a plumber for their respective portions. Those tradies are subcontractors. The homeowner’s contract is with the builder. If the plumbing leaks, the homeowner goes after the builder. The builder then goes after the plumber. Same pattern applies outside construction. A digital agency subcontracts a developer. A consulting firm subcontracts a data analyst. An NDIS provider subcontracts a therapist. In every case, the chain runs: client to contractor, contractor to subcontractor. Knowing where you sit in that chain determines what agreements you need and what liability you carry. Their responsibilities and compensation are defined in a Subcontractor Agreement, a separate document from the head contract with the client.Contractor vs Subcontractor: Key Differences
| Contractor | Subcontractor | |
|---|---|---|
| Engaged by | The client | The contractor |
| Liable to | The client for the full scope | The contractor (not the client) |
| Paid by | The client | The contractor |
| Manages | Full scope and all subcontractors | Their own portion only |
| Agreement used | Contractor Agreement | Subcontractor Agreement |
| Super risk | Client may owe super for “labour only” contractors | Contractor may owe super to subcontractor on same basis |
Liability: When a Subcontractor Gets It Wrong
You do. That’s the short answer most contractors don’t want to hear. Your agreement with the client is to deliver a scope of work. You chose to bring in a subcontractor. The client didn’t negotiate with them, didn’t approve their work approach, and has no contract with them. So when the subcontractor’s work fails, the client comes to you. What you do with that claim against your subcontractor is a separate question governed by your subcontractor agreement. This is why the liability and indemnity clauses matter so much. You need the subcontractor to indemnify you for losses arising from their work. Without that clause, you absorb the client’s claim and have limited recourse against the person who actually caused it. Lawpath lawyers see the reverse trap constantly. A contractor drafts a detailed head contract with strong client protections, then uses a generic off-the-shelf template for the subcontract. The subcontract doesn’t mirror the head contract obligations. Something goes wrong. The contractor is exposed to the client but has no equivalent remedy against the subcontractor. That gap is entirely avoidable. If you are a contractor planning on hiring a subcontractor, you need to be sure of your contractual obligations. Consider our guide How to Hire a Contractor for key considerations when it comes to hiring contractors.What to include in your subcontractor agreement
At minimum, cover these nine things:- Scope and deliverables: exactly what the subcontractor must deliver, with clear acceptance criteria
- Payment terms: when payment triggers, not just a rate
- Indemnity clause: the subcontractor indemnifies you for losses from their work
- Limitation of liability: sized to reflect what’s actually at risk, not an arbitrary cap
- Insurance: minimum types and levels (public liability at minimum; professional indemnity for advice-based work)
- Back-to-back obligations: your head contract requirements flowed down to the subcontract
- IP ownership: who owns deliverables and background IP
- Termination: how either party exits and what notice applies
- Confidentiality: especially if the subcontractor touches your client’s data
Do You Need Permission to Subcontract?
Read your head contract first. Many commercial agreements, particularly in professional services and government work, include a subcontractor consent clause requiring written client approval before you bring anyone else in. That clause exists because the client hired you specifically. They didn’t consent to a third party performing the work. Breach it and you’re in trouble regardless of the quality of the subcontractor’s work. The fix takes five minutes: read the contract, request consent in writing, keep the email. If your contract is silent on subcontracting, you can generally proceed. But silence doesn’t shift liability. You still answer to the client for whatever the subcontractor does.Superannuation and GST: What the ABN Doesn’t Protect You From
This catches a lot of business owners off guard. Someone sends you an invoice under their ABN. You pay it. Job done, you think. But super may still apply. Under the ATO’s superannuation guarantee rules, you may owe super for a contractor who is mainly being paid for their own labour, even with an ABN and a contractor agreement in place. The test is what you’re actually paying for. Labour, performed personally, without delegation? Super obligations can apply. A specific deliverable or outcome, where they control how it’s produced? Much lower risk. Same logic runs to your subcontractors. If they’re mainly supplying their own time and effort rather than a defined output, speak with an accountant before assuming super isn’t owed. The back-payment exposure can be significant, especially if the arrangement has run for years. On GST: a contractor or subcontractor can only charge GST if they’re registered. Those under $75,000 annual turnover may not be. Check their ABN before paying any invoice with a GST component. If they’re unregistered and have charged you GST anyway, you’ve overpaid and they’re in breach of their ATO obligations.What Lawpath Lawyers See in Contractor and Subcontractor Arrangements
Four problems come up again and again across hundreds of contractor consultations each year.- The head contract and subcontract don’t match. A contractor commits to specific standards in their client agreement (NDIS compliance, audit rights, confidentiality requirements), then uses a generic template for the subcontract that mentions none of it. When a subcontractor fails to meet a standard that only exists in the head contract, the contractor has no contractual basis to recover from them. The obligations need to be mirrored deliberately, not assumed.
- Liability clauses are set up backwards. Lawpath lawyers regularly review subcontract agreements where the limitation of liability clause actually caps what the subcontractor owes the contractor. That’s usually the opposite of what the contractor wants. The goal is to push liability down, not limit your own recovery. Read those clauses carefully before you sign a template.
- Head contractors underestimate their own insurance exposure. Your subcontractor holding public liability insurance covers them. It doesn’t necessarily cover you for claims about how you managed the engagement. Lawpath advisors consistently recommend head contractors hold their own public liability cover and, where possible, require subcontractors to name them as an additional insured party.
- Post-August 2024, contractor agreements aren’t keeping up with the law change. The whole of relationship test now looks at practical reality, not contract language. Services businesses, telehealth practices, and tech companies that rely on long-term “contractors” who work almost exclusively for them are the most exposed. If the person can’t delegate, has fixed hours, and uses your systems day-to-day, the label “contractor” may not hold up.
Independent Contractor vs Subcontractor: Is There a Difference?
Sort of, and it matters to get clear on this. “Independent contractor” describes a legal status: not an employee, working under a services contract, running their own business. Both head contractors and subcontractors can be independent contractors. The terms describe different things. The distinction that matters legally is position in the contractual chain. Who engaged you, and who do you answer to? A contractor answers to the client. A subcontractor answers to the contractor. The “independent” part just means neither is an employee. In everyday conversation people use the terms interchangeably. In your agreements, the chain needs to be clear.Frequently Asked Questions
What is the difference between a contractor and a subcontractor in Australia?
A contractor is engaged directly by the client to deliver a scope of work. A subcontractor is engaged by the contractor to carry out part of that scope. Contractors answer to the client; subcontractors answer to the contractor. The client and subcontractor generally have no direct legal obligations to each other.Is a subcontractor liable to the client?
Normally not. A subcontractor’s obligations run to the contractor, not the client. If they do poor work, the client’s claim is against the contractor. That said, a subcontractor who causes harm through negligence may still face a separate claim in tort, outside the contract entirely.Can a contractor hire a subcontractor without telling the client?
Depends on the head contract. Many require written client consent before subcontracting. Check before you engage anyone. If the contract is silent, you can generally subcontract, but you remain fully accountable to the client for the outcome.Do subcontractors need their own ABN?
Yes. Subcontractors working as independent contractors need their own ABN. Pay someone without one and you’re generally required to withhold tax at 47% under the ATO’s PAYG withholding rules. There are narrow exceptions, but requesting the ABN before payment is the safe default.Are subcontractors entitled to superannuation?
Sometimes. Under the ATO’s super guarantee rules, you may owe super if the subcontractor is engaged mainly to provide their own labour under the contract. Holding an ABN and a subcontractor agreement doesn’t automatically remove that obligation. If the arrangement is primarily labour-based, get accounting advice before assuming super isn’t owed.What is sham contracting in Australia?
Sham contracting is misrepresenting an employment arrangement as independent contracting. It’s illegal under the Fair Work Act. Since August 2024, what gets assessed is the practical reality of the relationship, not just what the contract says. If the person you call a “contractor” works like an employee, the law may treat them as one.What agreements do I need when hiring a contractor or subcontractor?
To engage an individual contractor, use a Contractor Agreement (Individual). For a company, use a Contractor Agreement (Company). If you’re a contractor bringing in help, use a Subcontractor Agreement. Both need scope, liability, IP, insurance, and termination clauses. Don’t skip any of them.What is a back-to-back obligation in a subcontractor agreement?
Back-to-back obligations mean the key requirements in your head contract (insurance minimums, compliance standards, audit rights) are also imposed on your subcontractor. Without that alignment, you can be held to a standard your subcontractor was never bound by. It’s a gap that only shows up when something goes wrong.Conclusion
You don’t need to be a lawyer to get this right. You just need the right agreements in place before work starts. Most business owners put this off. The ones who don’t tend to have far fewer expensive conversations later. If you’re ready to hire a contractor, you can create an Individual Contractor Agreement or a Company Contractor Agreement online. If you are a contractor considering hiring a subcontractor, we also provide a Subcontractor Agreement.
