How Many Partners Can An Australian Partnership Have?

If you’re planning to start a business with others, a partnership can feel like the most straightforward way to get going. You share responsibilities, split profits and keep admin simple.

But there’s a key limit you need to understand from day one: how many partners you can legally have in a partnership in Australia.

In this guide, we’ll explain the partner limit in plain English, outline the exceptions, and help you decide whether a partnership, company or trust is the right structure for your goals. We’ll also share the key legal documents you should have in place so your working relationship stays clear and fair.

What Is A Partnership In Australia?

A partnership is a business structure where two or more people carry on a business together with a view to profit. It’s regulated mainly by each state and territory’s Partnership Act, and supported by federal rules that cap the number of partners for most ventures.

In a general partnership:

• The partners usually share profits according to an agreed ratio (often equal, but you can set any fair split).
• There’s no separate legal entity. The partnership isn’t a “company” - the partners are personally responsible for the business’s debts (jointly and severally).
• For tax, the partnership lodges a return that “splits” income, and each partner declares their share in their individual return.

Because it’s simple and flexible, a partnership is popular for new ventures or professional services where a small group wants to work together without setting up a company immediately.

How Many Partners Can A Partnership Have?

The short answer for most Australian partnerships is: up to 20 partners.

This cap comes from federal law that restricts partnerships of more than 20 people unless a specific exception applies. In practice, that means if your group will exceed 20 principals, you’ll usually need to switch to a different structure (for example, a company or trust-based model) to stay compliant.

Why The Cap Matters

Exceeding the 20-partner cap without a valid exception can create legal risks - from unenforceable arrangements to regulatory issues. It’s far better to choose the right structure early than to “retrofit” a fix when you’re already growing.

Tip: If you’re even close to the cap, consider whether the long-term plan (bringing in new principals or expanding nationally) points to a more scalable structure now, rather than later.

Are There Any Exceptions Or Alternatives?

Yes. There are limited situations where the 20-partner cap doesn’t apply, and there are also structural alternatives if you plan to grow beyond 20 people.

Professional Practice Exceptions

Certain regulated professions may be allowed to operate with more than 20 partners under specific exemptions. These typically cover classic professional partnerships (for example, some legal, accounting, medical and technical practices) where legislation or regulations permit larger firms to operate in partnership form.

The details can vary, so it’s important to check the rules that apply to your profession and state or territory. If an exception applies, you may be able to grow past 20 partners lawfully - but you’ll still want a clear governance framework to keep decision-making smooth as the partnership scales.

Limited Partnerships (State-Based)

Some states and territories also recognise limited partnerships (and, in certain cases, incorporated limited partnerships) often used for venture capital and fund-style vehicles. These structures can allow a larger number of “limited partners” with limited liability, managed by one or more “general partners.”

They’re distinct from a simple general partnership, and they come with specific regulatory, tax and compliance rules. If you’re exploring an investment-style venture, consider whether this model fits - and seek tailored legal advice early.

Alternatives When You’ll Exceed 20

If you’re likely to exceed 20 principals (or you want stronger liability protection or clearer governance), consider these alternatives:

• Company (Pty Ltd): A separate legal entity that offers limited liability and more scalable ownership and management. If you go this way, it’s common to adopt a Company Constitution and put a Shareholders Agreement in place for decision-making, exits and dispute resolution.
• Trust (often a unit trust): Ownership interests are represented by units, with a trustee managing the trust. This can suit larger groups or investment-style ventures - our overview of trust structures in Australia explains when a trust may be a better fit.
• Joint venture: If your plan is a specific project with separate parties keeping their own businesses and profits, a JV (contractual or incorporated) might be more appropriate than sharing profits as partners. See our comparison of a joint venture vs partnership for the key differences.

How To Set Up And Run A Partnership Properly

If a partnership suits your goals and you’re within the cap, here’s a practical roadmap to set things up the right way.

1) Agree On The Core Terms

Before anything else, align on the fundamentals:

• Who the partners are and the contributions each will make (cash, assets, IP, workload).
• How profits and losses will be split (equal or another ratio).
• Decision-making (what needs unanimous consent vs a simple majority).
• What happens if someone wants to leave (or if you invite a new partner).
• Dispute resolution steps before anything escalates.

Documenting this clearly in a written Partnership Agreement will save time, money and relationships later.

2) Choose A Business Name And Register What’s Needed

If you trade under a name that isn’t simply the partners’ personal names, you’ll need to register a business name and get an ABN for the partnership. Keep in mind that a business name is not the same as setting up a company - our guide on Business Name vs Company Name explains the difference and why it matters.

3) Sort Out Tax And Banking

Set up a partnership bank account (keeping personal and business funds separate is good practice), apply for a TFN for the partnership and consider GST registration if your turnover will reach the threshold. Speak with your accountant about PAYG and super if you’ll have staff.

4) Put Your Day-To-Day Contracts And Policies In Place

Even small partnerships benefit from basic legal hygiene. Have clear customer terms, vendor agreements and key policies (privacy, refunds and complaints) in place before you start trading. This keeps your risk in check and helps avoid disputes.

5) Keep Governance And Records Tight

Schedule partner meetings, minute decisions that matter (like admitting a new partner or buying major assets), and keep your records tidy. Clarity now makes everything easier later, especially if you restructure or sell.

Thinking Of A Company Instead?

If you decide a company fits better, you’ll need to incorporate and set up governance from the start. Many founders pair Company Set Up with a tailored Shareholders Agreement so ownership, roles and exits are crystal clear.

What Legal Documents Should Partners Put In Place?

Your documents are the backbone of a well-run partnership. At a minimum, consider the following:

• Partnership Agreement: Sets out contributions, profit shares, decision-making rules, admissions/exits, restraints, dispute resolution and winding up. A written, tailored Partnership Agreement is essential, even for long-time friends.
• Customer Terms and Conditions: A clear set of terms for your clients or customers (deliverables, timings, payments, liability, refunds). This can sit on your website or be a service agreement you send with quotes or proposals.
• Supplier or Contractor Agreements: Contracts that lock in pricing, service levels, IP ownership and confidentiality with key suppliers and freelancers.
• Privacy Policy: If you collect personal information (online forms, newsletter sign-ups, bookings), you’ll need a compliant policy explaining how you collect, use and store it under Australian privacy laws.
• Employment or Contractor Agreements (if you hire): Make sure staff are engaged on proper terms and you meet Fair Work obligations, including clear roles, confidentiality and IP ownership.
• IP and Branding Protection: Consider registering your trade marks (name and logo) so other businesses can’t ride on your brand. If you later move to a company structure, you’ll likely also set a Company Constitution and keep your shareholder settings aligned with your team’s roles and plans.

These documents can be tailored to your industry and the way you work, and they’ll evolve as your business grows or restructures.

Key Takeaways

• For most Australian ventures, a general partnership can have up to 20 partners - beyond that limit you’ll need an exception or a different structure.
• Profession-based exceptions and limited partnership models exist but come with specific rules; check what applies to your industry and state.
• If you plan to scale beyond 20 principals, a company or trust may be a better fit; compare a joint venture vs partnership and consider a unit trust if you’re raising capital.
• Set up strong foundations: agree the basics, register what’s required, and keep governance and records tight from the start.
• Have the right documents in place - a tailored Partnership Agreement, clear customer and supplier contracts, and privacy and employment documents if you’re hiring.
• If you switch to a company, pair Company Set Up with a robust Shareholders Agreement to support growth and protect relationships.

If you’d like a consultation on setting up a partnership (or choosing between a partnership, company or trust), you can reach us at 1800 730 617 or team@sprintlaw.com.au for a free, no-obligations chat.