Going into business with a partner is one of the most significant commercial decisions you will make. Yet most business owners spend more time negotiating their lease than they do documenting the rules of their partnership. The result is predictable: when the relationship breaks down — and it does, more often than you might expect — there is no clear framework to resolve the dispute.
A shareholders agreement is the document that fills that gap. It is not legally required in Australia, but it is, without qualification, one of the most important legal documents a company can have. This guide explains what a shareholders agreement is, what it must contain, and what happens when businesses operate without one.
What Is a Shareholders Agreement?
A shareholders agreement is a private contract between the shareholders of a company that governs how the company is owned and managed. Unlike the company’s constitution — which is a public document lodged with ASIC — a shareholders agreement is confidential. It sits alongside the constitution and fills in the detail that the constitution typically does not address.
The Corporations Act 2001 (Cth) provides a basic framework for companies, but it leaves enormous gaps. It does not tell shareholders how to resolve a deadlock, how to value shares in a buyout, or when a shareholder can be forced to sell. A shareholders agreement supplies the rules the Act does not.
Is a Shareholders Agreement Legally Required?
No. A company can operate without a shareholders agreement, and many do. But the question is not whether you can operate without one — it is what happens when things go wrong without one.
Without a shareholders agreement, disputes about share transfers, management authority, dividend policy, and exit rights are resolved by reference to the Corporations Act, the company’s constitution (if one exists), and if those documents do not answer the question, by expensive, unpredictable litigation. The Act’s default position on many critical issues is silence. Shareholders who rely on that silence often end up in court.
A well-drafted shareholders agreement avoids most of those disputes entirely. It replaces silence with clarity.
Key Clauses Every Shareholders Agreement Must Have
Not all shareholders agreements are equal. A one-page template downloaded from the internet will not protect you. These are the clauses that matter.
1. Share Transfer Restrictions
Without restrictions, a shareholder can sell their shares to anyone — including a competitor. Transfer restrictions prevent this. The most common is a right of first refusal (ROFR): before selling to an outside party, the selling shareholder must offer their shares to existing shareholders at the same price and terms.
Well-drafted transfer restrictions also address transfers to related parties (family trusts, associated companies) to prevent a shareholder from indirectly transferring economic interest without triggering the ROFR.
2. Buyout and Exit Mechanisms
This is the most critical set of clauses and the most commonly omitted. Shareholders agreements need to answer: how does a shareholder get out, and at what price?
Common exit mechanisms include:
- Drag-along rights: If the majority shareholders want to sell the company, they can force the minority to sell their shares on the same terms. This prevents a minority from blocking a sale.
- Tag-along rights: If the majority sells their shares, the minority has the right to join the sale on the same terms. This protects minority shareholders from being left behind with a new, unknown majority.
- Put and call options: One shareholder can be required to buy (or sell) another’s shares at a predetermined price or formula on specified trigger events (death, disability, dismissal, insolvency).
- Shotgun clause (buy-sell clause): One shareholder nominates a price per share. The other shareholder must either buy at that price or sell at that price. This forces honest valuations and resolves deadlocks in two-shareholder companies.
The agreement should also specify the valuation methodology for any compulsory acquisition: agreed formula, independent expert valuation, or a combination. Leaving valuation undefined is a guarantee of future litigation. For more on how courts approach disputed valuations, see our guide on share valuation in shareholder disputes.
3. Deadlock Resolution
In a 50/50 company, two shareholders who cannot agree can bring the business to a halt. The Act provides no automatic resolution mechanism. Without a deadlock clause, the only options are negotiation, mediation, or — in extreme cases — applying to the court to wind the company up on just and equitable grounds.
A deadlock clause should set out:
- What constitutes a deadlock (failed board votes, failed shareholder resolutions)
- An escalation procedure (senior management referral, mediation)
- A final resolution mechanism (shotgun clause, compulsory acquisition by one party, or winding up)
4. Director Appointment and Management Rights
The Corporations Act gives shareholders the power to appoint and remove directors by ordinary resolution. But shareholders agreements can modify this — for example, by giving each shareholder the right to appoint one director regardless of their shareholding, or by requiring a supermajority to remove a director.
In small businesses, management rights often matter more than economic rights. The agreement should be explicit about who runs the day-to-day operations, what decisions require shareholder approval (major contracts, new borrowings, capital expenditure above a threshold), and what happens if a shareholder-director is removed.
5. Dividend Policy
The Corporations Act gives the board discretion on whether to pay dividends. Without a shareholders agreement, a majority-controlled board can choose to retain profits indefinitely — effectively denying a passive investor any return on their investment. This is a common form of minority shareholder oppression.
A dividend policy clause can require minimum dividend distributions (for example, 50% of after-tax profits annually, subject to working capital requirements) or give minority shareholders standing to demand distributions above a threshold.
6. Non-Compete and Restraint of Trade
If a shareholder exits the company, they should not immediately start a competing business using the knowledge and relationships they developed while a shareholder. A restraint of trade clause prevents this for a defined period and geographic area.
These clauses must be carefully drafted. Under Australian law, a restraint is only enforceable to the extent it is reasonable in the circumstances. Courts will not enforce an unlimited geographic scope or an unreasonably long duration.
7. Dispute Resolution
Before the shotgun or the court, there should be a structured dispute resolution process. This typically requires:
- Good faith negotiation between the parties (14–28 days)
- Escalation to mediation (with a named mediator or nominating body)
- Referral to an independent expert for valuation or specific technical disputes
A dispute resolution clause creates a roadmap that reduces the risk of immediate litigation and gives both parties time to reach a commercial solution.
What Happens Without a Shareholders Agreement?
The consequences of operating without a shareholders agreement become apparent only when something goes wrong — which is, by definition, the worst possible time to discover the gap.
Common outcomes for companies without a shareholders agreement include:
- Deadlock: Two equal shareholders who cannot agree have no contractual mechanism to break the impasse. The company stagnates or is wound up.
- Forced wind-up: In a serious dispute, a shareholder may apply to wind up the company on just and equitable grounds under s 461 of the Corporations Act. This is often a lose-lose outcome — the company loses value, both shareholders incur costs, and the business may be destroyed.
- Minority oppression: Without protective provisions, a majority shareholder can effectively exclude the minority from management, withhold dividends, and dilute their shareholding through new share issues. The minority’s only remedy is an oppression application under s 232, which is expensive and unpredictable.
- Exit disputes: When a shareholder wants to leave, there is no agreed mechanism for valuation or transfer. The departing shareholder cannot force a buyout; the remaining shareholders cannot force a sale. The company is paralysed.
For more on what happens when shareholder relationships break down, see our guide on how to resolve a shareholder dispute in Australia, and our analysis of the oppression remedy under section 232.
When Should You Update Your Shareholders Agreement?
A shareholders agreement is not a set-and-forget document. It should be reviewed whenever the company’s circumstances change materially. Key triggers include:
- A new shareholder joins the company
- An existing shareholder’s stake changes significantly
- A shareholder takes on a different role (from active director to passive investor, or vice versa)
- The company’s business model or industry changes
- A shareholder dies or becomes incapacitated
- The company takes on external investment or debt
- The valuation of the business changes significantly
- Insolvency Lawyers Brisbane — Boss Lawyers
An agreement drafted when the company was worth $500,000 may be wholly inadequate when it is worth $10 million. The valuation methodology, the restraint period, and the exit mechanics all need to be calibrated to the company’s current circumstances.
Can a Shareholders Agreement Override the Corporations Act?
In some respects, yes — and in others, no.
The Corporations Act permits shareholders to agree to modify many of the Act’s default provisions. Shareholders can agree that certain resolutions require more than a simple majority, that directors cannot be removed without the consent of a specified shareholder, or that specific rights attach to particular share classes.
However, provisions of the Act that protect third parties or the public interest cannot be displaced by agreement. Shareholders cannot agree to shield each other from ASIC enforcement, sidestep statutory duties owed to creditors in insolvency, or contract out of their obligations as directors under ss 180–184 of the Corporations Act.
Frequently Asked Questions
Do I need a shareholders agreement if there are only two shareholders?
A two-shareholder company is actually the scenario where a shareholders agreement matters most. Any dispute between two equal shareholders creates an immediate deadlock — there is no majority to break the impasse. Without a shotgun clause, deadlock resolution mechanism, or agreed buyout process, the company can be paralysed. A shareholders agreement is essential for two-shareholder companies. This is general information only and is not legal advice. You should obtain professional advice specific to your circumstances.
Does a shareholders agreement need to be in writing?
Yes. While oral agreements can sometimes be legally binding, a shareholders agreement that is not in writing is practically unenforceable. The parties will dispute what was agreed, the terms will be unclear, and any dispute will devolve into a credibility contest. A written agreement signed by all shareholders and witnessed is the only reliable form. This is general information only and is not legal advice. You should obtain professional advice specific to your circumstances.
Can Boss Lawyers help with our shareholders agreement?
Yes. Boss Lawyers regularly acts for shareholders at all stages — drafting new shareholders agreements, reviewing and updating existing agreements, and representing shareholders in disputes when agreements break down or do not exist. Contact us on 1300 267 711 or visit our shareholder dispute lawyers Brisbane page. This is general information only and is not legal advice. You should obtain professional advice specific to your circumstances.
Get Advice Before You Need It
Shareholders agreements are not drafted during disputes — they are drafted before them. A well-structured agreement is one of the most cost-effective legal investments a business can make: the cost of drafting is a fraction of the cost of litigating the disputes the agreement would have prevented.
If you are entering a business partnership, taking on investors, or operating a company with shareholders who have not documented their agreement, contact Boss Lawyers. Our shareholder dispute lawyers in Brisbane can advise you on what your agreement should cover, identify the gaps in your existing arrangements, and represent you if a dispute arises.
Mark Harley, Principal Solicitor, has over 17 years of experience in shareholder disputes, corporate governance, and commercial litigation. Call 1300 267 711 or email mharley@bosslawyers.com.au.
This article is general information only and is not legal advice. You should obtain professional advice specific to your circumstances.
