Subsidiary Companies Explained For Australian Businesses

If you’re growing a business in Australia, there may come a point where a single entity no longer fits everything you want to do. You might be launching a new product, entering a different market, or managing risk across multiple ventures. That’s where a subsidiary company can make a big difference.

Setting up a subsidiary can help you separate activities, protect core assets and streamline how your group operates. It also comes with clear legal responsibilities and practical steps you’ll want to get right from day one.

In this guide, we break down what a subsidiary company is, when it makes sense to use one, how to set one up in Australia, and the key legal and compliance considerations to keep in mind as you grow.

What Is a Subsidiary Company?

A subsidiary company is a separate legal entity that is controlled by another company (the parent company). Control usually comes from the parent owning more than 50% of the shares, or otherwise having the power to control the composition of the subsidiary’s board and its decisions.

Because the subsidiary is its own company, it has its own Australian Company Number (ACN), bank accounts, contracts and obligations. This separation is important for risk management and clarity of operations across your group.

Key Features Of A Subsidiary

• Separate legal entity: The subsidiary can enter into contracts and incur liabilities in its own name, distinct from the parent.
• Control by the parent: The parent usually appoints directors and steers strategy, but the subsidiary’s directors still owe duties to the subsidiary itself.
• Limited liability: As a general rule, the parent is not liable for the subsidiary’s debts, subject to limited exceptions (for example, guarantees or insolvent trading scenarios).
• Ownership structure: The parent holds shares in the subsidiary. If the parent holds 100% of shares, the entity is a wholly owned subsidiary.

Parent, Subsidiary And Sister Companies: What’s The Difference?

• Parent company: The controlling company at the top of the group.
• Subsidiary company: The company controlled by the parent.
• Sister companies: Two or more subsidiaries that share the same parent but operate as separate entities.

This type of group structure lets you keep high-risk activities separate, build distinct brands and manage growth without putting everything under one roof.

Why Set Up A Subsidiary In Australia?

There are several strategic reasons to create a subsidiary as you scale your business.

• Risk management: Ring-fencing certain activities (e.g. a new product line) helps protect the parent and other group entities if something goes wrong.
• Growth and flexibility: Enter new markets or regions, create joint ventures, or pilot new brands without disrupting existing operations.
• Investment options: Investors can invest at the subsidiary level without taking a stake in the parent, which can simplify fundraising for a specific venture.
• Regulatory requirements: Some activities or jurisdictions require a local company or specific licences, which a subsidiary can hold.
• Brand protection: Isolate early-stage or experimental ideas so any reputational issues don’t affect your core brand.

Note: Subsidiary structures can have tax implications. Whether there are “tax benefits” depends on your circumstances, so it’s important to get advice from a registered tax or accounting professional. From a legal perspective, we can help you set up the right structure and documentation while you obtain specialist tax advice.

How To Set Up A Subsidiary Company (Step-By-Step)

Here’s a practical roadmap to establish a subsidiary in Australia and keep your group structure clean and compliant.

1) Clarify The Purpose And Scope

Decide what the subsidiary will do, where it will operate and how it will be funded. Consider:

• The business activity and any licences it may need.
• Whether it will operate in a different state or overseas.
• Funding arrangements: share capital, intercompany loans or asset transfers.
• The proposed board and decision-making protocols.

Capturing this upfront will make the registration process smoother and inform the governance documents you’ll need.

2) Register The New Company With ASIC

The subsidiary must be incorporated with the Australian Securities & Investments Commission (ASIC). You’ll choose a name, decide on share structure, appoint directors, and lodge the application. Many businesses choose a professional service for a seamless Company Set Up and to ensure the documents align with the parent’s strategy.

Director residency rules matter here. For a proprietary limited company, at least one director must be ordinarily resident in Australia. You can read more about this in our guide to Australian resident director requirements.

3) Put The Ownership And Governance Basics In Place

Confirm how shares will be held (e.g. 100% by the parent or with minority investors). If there is more than one shareholder, a Shareholders Agreement is crucial to set out decision-making, transfers, dividends and exit mechanics. If the parent is the sole shareholder, you may still want formal decision rules for clarity.

For internal rules of operation, many companies adopt a tailored Company Constitution so director powers, meeting procedures and share rights are clear from day one.

4) Document Intercompany Arrangements

Group structures often share people, assets or services. To keep things clean-and to satisfy auditors and regulators-formalise these arrangements. Common agreements include:

• Services or management agreements for centralised functions (e.g. finance, HR, IT).
• Loan or cash management arrangements between the parent and subsidiary.
• Intellectual property licensing if the subsidiary will use brands, software or know-how owned by the parent.

Where the subsidiary will use the parent’s brand or technology, put an IP licence in place that covers scope, quality control and termination.

5) Obtain The Right Registrations

Apply for an Australian Business Number (ABN) for the subsidiary. Consider GST registration if required, and set up PAYG withholding if you’ll employ staff. These are company-specific-don’t assume group registrations automatically cover the new entity.

Tip: Keep tax and finance processes separate for each entity (bank accounts, accounting files and invoices). Clear separation supports limited liability and makes group reporting easier.

6) Build Internal Controls And Reporting

Set up proper accounting systems, financial delegations and reporting lines between the parent and subsidiary. Clarity here helps directors meet their duties and reduces the risk of commingling assets or obligations.

What Laws And Compliance Rules Apply?

Subsidiaries need to comply with Australian company law, as well as the usual obligations that apply to any business selling goods or services. Here are the key areas to consider.

Company Law And Governance

• Ensure the subsidiary maintains its own registers, minutes and ASIC filings, including timely updates for changes to directors, shareholders or addresses.
• Directors of the subsidiary must act in the best interests of the subsidiary (not automatically the parent). Related-party dealings should be on arm’s-length terms and properly documented.
• If the group is large enough to require audit or consolidated reporting, coordinate timelines and controls across entities.

Employment Law

If the subsidiary hires staff, it must comply with Fair Work obligations on pay, hours, leave and awards. Use a clear Employment Contract for each employee and ensure policies reflect the subsidiary’s operations, not just the parent’s.

Australian Consumer Law (ACL)

Businesses selling goods or services must comply with the ACL, including rules on warranties, refunds and avoiding misleading statements. Be especially mindful of representations in marketing-misleading or deceptive conduct is prohibited under section 18.

Privacy And Data Protection

If the subsidiary collects or uses personal information, it should publish a clear Privacy Policy and follow the Privacy Act 1988 requirements around collection, storage, access and disclosure. Each entity in your group should handle personal data in line with its own operations and legal obligations.

Intellectual Property (IP)

Decide whether trade marks, designs or other IP should be owned by the parent or the subsidiary. If the subsidiary uses IP owned by the parent, formalise permission via an IP licence. If the subsidiary is building a new brand, consider registering its trade marks in its own name to avoid confusion later.

Tax And Financial Reporting

Each company is responsible for its own tax returns and financial records, even where the group prepares consolidated accounts. Speak with your accountant about GST thresholds, PAYG and any group tax settings that may apply. As noted earlier, tax outcomes vary by structure and circumstances, so it’s important to obtain advice from a registered tax or accounting professional.

What Legal Documents Should A Subsidiary Have?

The right documents help you manage risk, clarify relationships and keep your group running smoothly. Consider these staples:

• Company Constitution: Internal governance rules for meetings, director powers and share rights. Tailor it to your group’s needs with a Company Constitution rather than relying only on replaceable rules.
• Shareholders Agreement: If more than one shareholder (including minority investors) is involved, a Shareholders Agreement sets expectations on decision-making, exits and dividends.
• Intercompany agreements: Service, loan, cost-sharing or IP arrangements that keep dealings between the parent and subsidiary clear and on arm’s-length terms.
• IP Licence: Formal permission for the subsidiary to use brands, software or other IP owned by the parent or vice versa, documented via an IP licence.
• Employment Contract and policies: Role-specific terms for each employee plus practical policies (e.g. leave, social media, bullying and harassment) aligned to the subsidiary’s operations, starting with an Employment Contract.
• Customer or supplier contracts: Written terms that clearly identify the contracting entity (the subsidiary), and allocate risk appropriately for your industry.
• Privacy Policy: If personal information is collected, publish a compliant Privacy Policy and ensure your processes match what it says.

Not every business will need every document on this list, but most subsidiaries will require several of them. Getting these drafted or reviewed early will save time and reduce disputes as your group grows.

Selling, Closing Or Expanding A Subsidiary

Because a subsidiary is a separate legal entity, you have options as your strategy evolves.

• Sell the entity: You can divest quickly by selling the subsidiary’s shares, keeping the rest of your group intact.
• Shut down: If the business has run its course, you can apply to deregister the company once liabilities have been settled and records finalised.
• Expand or go offshore: You can replicate the model by adding more subsidiaries for different products or regions, or incorporate entities in other countries if you’re entering overseas markets (you’ll need local legal and tax advice in those jurisdictions).

Whichever path you choose, make sure contracts, licences, employees and IP are properly transferred or assigned, and that ASIC records are updated promptly.

Key Takeaways

• A subsidiary company is a separate legal entity controlled by a parent company, which helps you manage risk and organise different parts of your business.
• Directors of the subsidiary must act in the subsidiary’s best interests, and at least one director must be an Australian resident for a proprietary limited company.
• Set up the structure properly: register with ASIC, put ownership and governance documents in place, and document intercompany arrangements.
• Keep compliance tight: employment, consumer law, privacy, IP and company law obligations apply to each entity-not just the group as a whole.
• Use the right documents-from a Shareholders Agreement and Company Constitution to an IP licence, Employment Contract and Privacy Policy-to keep responsibilities clear and risk controlled.
• Tax outcomes depend on your situation, so get advice from a registered tax or accounting professional alongside your legal setup.

If you’d like tailored legal advice on setting up or managing a subsidiary company in Australia, you can reach us at 1800 730 617 or team@sprintlaw.com.au for a free, no-obligations chat.