How To Set Up A Subsidiary Company (2026 Updated)

If your business is growing (or you’re planning for growth), setting up a subsidiary company can be a smart way to expand into new markets, manage risk, or separate different parts of what you do.

The tricky part is that a subsidiary isn’t just a “new company” – it’s a new company with ongoing legal and practical links to your existing business. Getting those foundations right from day one can save you a lot of time (and stress) later.

This guide is updated for current New Zealand business practices, including the way modern groups handle branding, privacy, contracting, and governance.

What Is A Subsidiary Company (And Why Would You Set One Up)?

A subsidiary company is a company that is owned or controlled by another company (often called the parent company or holding company).

In practice, “control” usually happens through shareholding. If the parent company holds enough voting shares to control the board or shareholder decisions, the company is generally considered a subsidiary.

People often set up a subsidiary when they want to:

• Ring-fence risk (e.g. keep a higher-risk project separate from the core trading business).
• Separate business lines (e.g. one entity for online sales and another for physical retail).
• Bring in investors to one part of the group without giving away ownership of the whole group.
• Expand into a new location or new brand while keeping clear financial reporting.
• Prepare for a future sale of one division (it’s often cleaner to sell shares in a separate entity than untangle assets later).

It can also help with operations. For example, you might want separate employment arrangements, separate supplier contracts, or separate customer terms for different products.

That said, don’t assume a subsidiary automatically “protects” the parent in every scenario. A group structure can reduce risk, but it won’t fix poor contracting, messy governance, or directors ignoring their legal duties.

Subsidiary vs Branch (Quick Comparison)

When you’re expanding, you might be choosing between:

• A subsidiary company: a separate legal entity with its own NZ Companies Office registration, directors, and obligations.
• A branch: typically an extension of the same legal entity (often used by overseas companies operating in NZ).

A subsidiary usually gives you clearer separation (and can be easier to sell later), but it also means extra admin and compliance because you’re running more than one company.

How Do You Set Up A Subsidiary Company In New Zealand?

Setting up a subsidiary in NZ is usually straightforward administratively, but the planning is where most of the value is. Here’s a practical step-by-step approach.

1. Confirm The Purpose (Risk, Growth, Investment, Or Sale?)

Before you register anything, get clear on what the subsidiary is for. This affects:

• who should own the shares (the parent company, a trust, individuals, or a mix)
• how many shares to issue and what rights they carry
• whether you need a shareholders agreement or other governance documents
• how contracts and assets should be allocated across the group

A common mistake is creating a subsidiary “just in case” and then still signing everything under the parent company name. If the parent signs the contracts, the risk may sit with the parent – regardless of the structure on paper.

2. Decide Who The Shareholders Will Be

In a classic subsidiary structure, the parent company holds 100% of the shares in the subsidiary. But there are other options, including joint ventures or minority investor arrangements.

If you’ll have more than one shareholder (or you want rules for what happens if someone leaves, funding is needed, or shares are sold), it’s often worth putting a Shareholders Agreement in place early.

3. Register The Subsidiary Company

In New Zealand, companies are registered through the Companies Office. You’ll need to sort out key details including:

• company name (and checks to reduce trade mark/name conflicts)
• registered office address and address for service
• director details (including residency requirements)
• share structure and shareholdings

At this point, it also helps to map out how you’ll present the group to the public. For example, if the subsidiary will operate under a slightly different brand or trading identity, you’ll want clarity about whether a trading name is being used and how it will appear on websites, invoices, and contracts.

4. Put The Governance Basics In Place

A subsidiary is a separate company, which means it should have its own governance documents and decision-making processes.

Depending on how you’re operating, that can include:

• a Company Constitution (especially useful if you want tailored rules around shares, director powers, and decision thresholds)
• board resolutions and shareholder resolutions (to document major decisions properly)
• clear director appointments and role descriptions

This is also where you set expectations internally. If the parent company “calls the shots” day-to-day, make sure you’re still documenting key subsidiary decisions properly (especially financial decisions or related-party arrangements).

5. Transfer Or Allocate Assets, IP, And Contracts

Setting up a subsidiary is only half the job. The real question is: what will the subsidiary actually own and do?

Typical assets and rights to consider include:

• customer contracts (who is actually contracting with customers?)
• supplier agreements
• website domain and content
• trade marks and branding
• software licences and operational tools
• equipment and stock

Where intellectual property is shared across the group (like brand names, training materials, software, or product designs), it’s common to document this with an IP licence rather than letting everyone “just use it”. Done properly, this can reduce disputes and help protect value if you ever sell one entity.

What Laws And Compliance Issues Should You Think About In A Subsidiary Structure?

Even though the subsidiary is a separate legal entity, it doesn’t operate in a vacuum. You’ll still need to think about compliance across the group, especially where customers, staff, and data are involved.

Directors’ Duties Still Matter

Each company has its own directors, and directors must act in the best interests of that company. That can get complicated in a group setting, because what helps the parent company isn’t always best for the subsidiary (and vice versa).

In New Zealand, directors’ duties come mainly from the Companies Act 1993. Practically, this means you should be careful with:

• loans between the parent and subsidiary
• guarantees and indemnities
• any situation where one company takes on risk mainly to benefit another

If you’re planning to have the parent guarantee a subsidiary’s obligations (for example, under a commercial lease), make sure you understand the exposure you’re taking on and document it properly.

Employment Law (If The Subsidiary Will Hire Staff)

If the subsidiary will employ staff, it needs its own employment documentation and compliant processes.

At a minimum, you’ll generally want a fit-for-purpose Employment Contract that matches the subsidiary’s role, pay structure, confidentiality needs, and any restraints (where appropriate and enforceable).

Be careful about “who the employer is” in practice. If the parent company directs the employee day-to-day but the subsidiary is on paper as the employer, you can end up with confusion (or disputes) about liability and obligations.

Privacy And Data Handling Across The Group

If the subsidiary collects personal information (customer details, mailing lists, online orders, employee records), it must comply with the Privacy Act 2020.

In group structures, privacy issues often come up when data is shared between companies. For example:

• the subsidiary collects customer data, but the parent runs marketing
• a shared admin team accesses data for both entities
• the group uses the same CRM across multiple companies

To keep things clean (and to set expectations with customers), you’ll usually want a clear Privacy Policy that explains who is collecting data, why, and who it may be shared with.

Consumer And Marketing Law Still Applies

If your subsidiary sells to consumers in NZ, it’ll need to comply with laws like the Fair Trading Act 1986 (misleading or deceptive conduct, advertising claims) and the Consumer Guarantees Act 1993 (consumer rights around faults and remedies).

This is a practical point as much as a legal one: your invoices, website terms, refund processes, and marketing claims should match the entity that is actually selling the goods or services.

What Legal Documents Do You Usually Need For A Subsidiary Company?

A subsidiary company structure works best when your documents match what you’re actually doing. If you’re running multiple companies but your contracts don’t reflect that, it can undermine the separation you were trying to achieve.

Here are the documents we commonly see as “core” when setting up a subsidiary (not every business needs all of these, but they’re worth considering).

Company Constitution

A constitution sets the internal rules for how the company is run. It’s especially helpful when you want more control and clarity around governance (and when there’s more than one shareholder involved).

If you’re setting up a new subsidiary as part of a group, a tailored Company Constitution can help ensure the subsidiary’s rules actually suit the way the group operates.

Shareholders Agreement (If There’s More Than One Shareholder)

If the parent company will own 100% of the subsidiary, you may not need a shareholders agreement.

But if there are co-founders, investors, or another company involved, a Shareholders Agreement can be the document that keeps everyone aligned and reduces disputes.

It often covers things like:

• how decisions are made
• what happens if someone wants to sell their shares
• capital contributions and funding obligations
• deadlock resolution
• confidentiality and IP protections

Intercompany Agreements (Parent–Subsidiary Arrangements)

This is where many groups either get it very right or very messy.

Common intercompany agreements include:

• service agreements (e.g. the parent provides admin/management services to the subsidiary)
• licence agreements (e.g. the parent licenses the brand to the subsidiary)
• loan agreements (e.g. the parent funds the subsidiary)
• asset transfer documents if equipment, IP, or contracts are moving into the subsidiary

These agreements help you show (internally and externally) what each company is responsible for, what is being paid for, and who carries what risk.

Customer-Facing Terms (Especially For Online Sales)

If the subsidiary is the entity selling to customers, make sure your customer-facing terms match the right entity name and company number.

Depending on how you sell, that might include:

• website terms
• subscription terms
• returns and refund policies
• service terms and scopes of work

When it’s not clear which entity the customer contracted with, disputes get harder to resolve (and you might end up with the “wrong” company being pursued for refunds or claims).

Common Mistakes When Setting Up A Subsidiary (And How To Avoid Them)

A subsidiary structure can be a great move – but only if it’s implemented properly. Here are some common issues we see, especially with fast-growing businesses.

Mixing Up The Contracting Entity

This is the big one. You register a subsidiary, but:

• the parent company signs all the supplier contracts
• the website terms still name the parent company
• invoices come from whichever entity someone happens to use that day

If you want the subsidiary to carry the trading risk, you need consistency in your paperwork and day-to-day operations.

Assuming “Limited Liability” Means “No Liability”

Companies generally offer limited liability to shareholders, but that doesn’t mean the parent company is automatically protected.

For example, risk can still flow back to the parent if:

• the parent gives a guarantee
• the parent is the contracting party
• directors breach duties
• there’s misleading conduct in marketing that exposes multiple entities

Think of structure as one part of protection, not the whole plan.

Not Documenting Intercompany Dealings

If the parent pays bills for the subsidiary (or staff work across companies), you want that properly documented.

It’s not just about being “formal” – it helps avoid arguments later about:

• who owns what
• who owes what
• whether payments were a loan, a fee, or a capital contribution

Using Templates For Group Structures

It’s tempting to download a generic company template online and call it done.

But group structures often involve related-party risk, shared branding, and shared resources. If your documents don’t match your setup, they may not protect you when you actually need them.

Getting the documents drafted properly is usually much cheaper than fixing a dispute (or untangling a messy structure) later on.

Key Takeaways

• A subsidiary company is a separate legal entity owned or controlled by a parent company, often used to manage risk, separate business lines, or support growth and investment.
• Setting up the subsidiary is only the start – you also need to allocate the right assets, contracts, staff, and IP so the structure works in real life (not just on paper).
• Each company in the group has its own governance and compliance obligations, including directors’ duties under the Companies Act 1993.
• If the subsidiary will hire staff, it should use its own compliant Employment Contract and clearly reflect who the true employer is.
• If the subsidiary collects personal information, it must comply with the Privacy Act 2020 and should usually have a clear Privacy Policy that explains any group data sharing.
• Key documents often include a Company Constitution, Shareholders Agreement (where relevant), and intercompany agreements that document services, licensing, and funding between entities.

If you’d like help setting up a subsidiary company (or making sure your group structure is legally watertight), you can reach us at 0800 002 184 or team@sprintlaw.co.nz for a free, no-obligations chat.