How Subcontracting Works for Australian Businesses

If you run a small business, chances are you’ve either been asked to subcontract some work, or you’ve considered bringing in someone else to help you deliver a project.

Subcontracting can be a smart way to scale quickly, access specialist skills and keep your overheads manageable. But it can also create legal and commercial risk if you don’t clearly define what a subcontract is (and what it isn’t), and if you don’t set expectations in writing.

In this guide, we’ll explain how to define subcontract in plain English, how subcontracting works in Australia, and what you should put in place to protect your business when you engage subcontractors (or when you’re the one being engaged).

Define Subcontract: What Is a Subcontract (In Plain English)?

To define subcontract, it helps to start with the bigger picture.

A subcontract is an agreement where one party (usually a contractor who already has a client contract) engages another party (the subcontractor) to perform some or all of the work that the contractor has agreed to deliver to the end client.

In other words:

• You win (or sign) the main job with the customer.
• You then engage someone else to do part of that job.
• You remain responsible to the customer for meeting your obligations under the main contract (and in many cases, you can’t fully “contract out” of that responsibility).

The agreement you sign with that “someone else” is the subcontract.

Key Parties In A Subcontracting Arrangement

• Principal / Client: the end customer who wants the work done.
• Contractor / Head Contractor: the business that has the primary contract with the client.
• Subcontractor: the business or individual engaged by the contractor to do all or part of the work.

Common Examples Of Subcontracting

Subcontracting shows up across many industries, including:

• Construction: a builder engages an electrician or plumber.
• IT and software: an agency engages a developer to deliver a feature.
• Marketing: a consultancy engages a designer, videographer, or copywriter.
• Facilities and cleaning: a business with a large client engages additional cleaners for overflow work.
• Events: an event organiser engages caterers, AV providers, or photographers.

What matters isn’t the industry-it’s the structure: you’re delegating part of your promised deliverables to another party.

Subcontract Vs Contractor Vs Employee: What’s The Difference?

A lot of legal issues in subcontracting come from mixing up labels. Calling someone a “subcontractor” doesn’t automatically make it true.

Here’s a practical breakdown of the differences.

Subcontractor Vs Contractor

A subcontractor is a type of contractor, but specifically one who is engaged by another contractor (not by the end client).

• A contractor is generally engaged directly by the client to provide services.
• A subcontractor is engaged by a contractor to help fulfil the contractor’s obligations to the client.

From your business perspective, this matters because the “chain” of responsibility can affect liability, payment flow, and how disputes are handled.

Subcontractor Vs Employee (Why Classification Matters)

An employee is engaged under an employment relationship, with obligations like minimum entitlements and other Fair Work requirements. A subcontractor is usually an independent business providing services.

There isn’t one single “test”, but in practice, contractors/subcontractors often:

• run their own business (even if small)
• invoice for work performed
• provide their own tools/equipment (often)
• control how they perform the work (to a reasonable extent)
• can work for multiple clients

If you are engaging people regularly, under your direction, using your systems, and they look/operate like part of your team, you should be cautious about whether the relationship is really employment.

Where you do need an employment arrangement, having the right Employment Contract in place is a big part of managing expectations and compliance.

When Should Your Business Use A Subcontract?

Subcontracting isn’t “good” or “bad”-it’s a tool. The key is knowing when it makes commercial sense and when it creates risk.

Subcontracting Can Be A Good Fit If You:

• need specialist skills (e.g. a particular trade, certification, or niche technical capability)
• have variable workload and don’t want to hire permanent staff
• want to expand capacity without the overhead of employment
• operate across locations and need local support
• have a tight deadline and need extra hands quickly

Subcontracting Can Be Risky If You:

• don’t have clear scope, timeframes, and acceptance criteria
• are in a highly regulated environment and the subcontractor’s work impacts compliance
• have customer contracts that restrict subcontracting or require consent
• have unclear IP ownership (especially in creative/tech work)
• can’t afford delays or rework caused by poor performance

A quick practical tip: before you engage a subcontractor, check whether your contract with the end client has any terms about subcontracting, assignment, confidentiality, or approvals. It’s much easier to handle this upfront than after the client is unhappy.

What Should Be In A Subcontract Agreement?

If you only take one thing away from this article, let it be this: subcontracting is much safer when the terms are written down clearly.

A good subcontract sets expectations, allocates risk, and gives you options if something goes wrong.

1. Scope Of Work (And What’s Not Included)

Define exactly what the subcontractor is doing, including:

• deliverables (what must be produced)
• standards and specifications
• milestones and deadlines
• who supplies materials/tools
• what information the subcontractor needs from you

It’s also helpful to state what is out of scope, so you can manage scope creep.

2. Fees, Invoicing, And Payment Terms

Make it clear:

• how the subcontractor is paid (fixed fee, hourly/day rate, milestone-based)
• when invoices can be issued
• your payment timeframe (e.g. 7/14/30 days)
• whether GST is included or added
• whether you can withhold payment for defective or incomplete work (and how that process works)

Payment disputes are one of the most common causes of conflict in subcontracting arrangements, so clarity here is crucial.

3. Quality Control, Defects, And Rework

You want a mechanism for:

• review and acceptance of work
• dealing with defects
• timeframes for rework
• what happens if the subcontractor refuses or can’t fix issues

This is especially important when your own client contract has strict delivery requirements (because you may be the one on the hook if the subcontractor underperforms).

4. Liability And Indemnities

Your subcontract should deal with who is responsible if something goes wrong-property damage, personal injury, customer claims, delays, or third-party losses.

Often, you’ll want to require the subcontractor to indemnify you for loss caused by their breach or negligence (subject to what’s reasonable and enforceable for your circumstances).

5. Insurance Requirements

Depending on the work, you may want the subcontractor to carry insurance such as public liability, professional indemnity, or workers compensation (where applicable). Your contract can require the subcontractor to provide certificates of currency upon request.

This is an area where the “right answer” depends on the job and your risk profile-getting advice early can prevent expensive gaps in coverage.

6. Confidentiality And Privacy

If the subcontractor will access confidential information (client data, pricing, internal processes) you should have confidentiality obligations in the subcontract.

If personal information is involved, you also need to think about privacy compliance. Many businesses start by getting their customer-facing Privacy Policy right, then ensure subcontractors handle data consistently with those commitments.

7. Intellectual Property (IP) Ownership

IP is a big issue for service businesses, creatives, agencies, and tech companies.

Your subcontract should address:

• who owns the IP created under the subcontract
• whether IP is assigned to you upon payment
• whether the subcontractor can reuse templates, tools, or pre-existing materials
• licensing terms for anything not assigned

If you plan to on-sell deliverables to your client, you want to ensure you actually have the rights to do that.

8. Term, Termination, And Exit Process

A practical subcontract includes:

• when the subcontract starts and ends
• termination rights (for breach, convenience, insolvency, delays)
• what happens to work-in-progress
• handover obligations (files, materials, access credentials)
• final payment and outstanding invoices

Clear exit terms can be the difference between a small inconvenience and a major project disruption.

9. Sub-Subcontracting (Can They Engage Someone Else?)

Sometimes your subcontractor will want to engage another person to help them. That can be fine, but you may want approval rights, especially if the work is sensitive or the end client has restrictions.

What Laws And Legal Risks Should You Think About When You Subcontract In Australia?

Subcontracting is common in Australia, but there are still legal and compliance issues you should stay on top of.

Australian Consumer Law (ACL)

If you supply goods or services to customers, you’ll likely have obligations under the Australian Consumer Law (ACL), including rules about consumer guarantees, refunds, representations, and misleading conduct.

Even if a subcontractor did the work, the client will usually look to the party they contracted with (often you) if something is defective or not delivered as promised, and you may need to pursue the subcontractor separately under your subcontract.

Misleading Or Deceptive Conduct Risk

Be careful about what you promise a client if your ability to deliver depends on subcontractors. If you represent that you have certain capability, speed, or staffing, you need to be confident you can deliver.

This is one reason many businesses standardise their customer-facing terms in a Service Agreement so expectations are clear from the start.

Work Health And Safety (WHS)

If subcontractors are doing work on-site (particularly in construction, trades, events, or logistics), WHS duties can apply. Exactly who owes what duties (and in what capacity) depends on the workplace, the activities being carried out, and who has management or control.

Even where the subcontractor runs their own business, you may still have WHS duties as a person conducting a business or undertaking (PCBU) in some circumstances.

Tax, ABNs, And Invoicing Hygiene

From a practical perspective, you should ensure your subcontractors:

• have an ABN (where appropriate)
• provide tax invoices that meet GST requirements (if registered)
• understand your invoicing and payment processes

This section is general information only and isn’t tax or accounting advice. For advice tailored to your situation (including GST, PAYG withholding, and contractor reporting obligations), it’s best to speak with an accountant or registered tax agent.

Restraints, Non-Solicitation, And Protecting Client Relationships

A common worry is: “What if my subcontractor goes directly to my client?”

This is where properly drafted non-solicitation and confidentiality obligations can help protect your goodwill, especially if the subcontractor is client-facing.

It’s also important that your client contract aligns with your subcontract, so you aren’t promising the client one thing while your subcontractor agreement says another.

Key Takeaways

• To define subcontract, think of it as the agreement between a contractor and a subcontractor, where the subcontractor performs part (or all) of the contractor’s obligations to the end client.
• Subcontracting can help your business scale quickly, but it can also expose you to liability if the subcontractor’s work is late, defective, or non-compliant.
• A strong subcontract should clearly cover scope, payment terms, quality control, IP ownership, confidentiality, insurance, and termination rights.
• Be careful not to treat a subcontractor like an employee in practice-classification issues can create serious legal and commercial risk.
• Align your client contract and your subcontract so that expectations, timelines, and responsibility don’t conflict.

If you’d like help setting up a subcontracting arrangement that protects your business, you can reach us at 1800 730 617 or team@sprintlaw.com.au for a free, no-obligations chat.