Shareholders Agreement
This guide explains what a shareholders agreement is, when Australian businesses need one, and what to consider before signing or using a template.
Written by: Mark Lazarus, Commercial Lawyer, Director of Lazarus Legal
Published: 05 February 2026
Legal Disclaimer: The information on this page is general in nature and is not intended to constitute legal advice. It does not take into account your personal circumstances. Laws and legal processes can change, and their application varies between cases. You should seek independent legal advice before acting on any information on this page.
What Is A Shareholders Agreement?
A shareholders agreement is a private contract between shareholders that sets out their rights, obligations, and decision-making processes in an Australian company. It operates alongside the Corporations Act 2001 and a company constitution, adding detail and flexibility that statutory rules and constitutional provisions typically don’t cover.
The shareholders agreement creates legally binding obligations between shareholders as individuals, not just in their capacity as company members. This distinction matters because the agreement can include personal covenants and restrictions that would be difficult or impossible to enforce through the company constitution alone.
Most Australian shareholders agreements remain confidential between the parties. Unlike a company constitution, which ASIC registers as a public document, your agreement stays private unless you choose to disclose it to specific parties like investors or lenders.
Why Would You Need A Shareholders Agreement
You need a shareholders agreement when multiple people hold equity in an Australian company and want certainty about governance, control, and exit processes. Australian law doesn't require one, but operating without an agreement leaves critical decisions to default statutory rules that rarely suit your specific business situation.
A shareholders agreement helps:
- Prevent deadlock when shareholders disagree on fundamental business decisions like taking on debt, changing direction, or selling the company
- Protect minority shareholders from being outvoted on major decisions that affect their investment and rights
- Give majority shareholders clear exit mechanisms and prevent unwanted third parties from acquiring shares
- Set out decision-making processes beyond simple majority voting, including reserved matters that require unanimous or supermajority approval
- Control how shares can be transferred, ensuring existing shareholders get first opportunity to buy before outsiders enter the company
- Establish what happens when shareholders want to exit, retire, die, or become incapacitated
- Define funding obligations if the company needs additional capital and what happens if a shareholder cannot or will not contribute
- Create dispute resolution processes that avoid costly court proceedings when disagreements arise over strategy, dividends, or succession
- Lock in commercial arrangements and confidential terms that don't belong in your public company constitution registered with ASIC
Shareholders Agreement Vs Company Constitution
Once the need for a shareholders agreement is identified, attention often turns to how it differs from a company constitution. Although both form part of Australia’s corporate governance framework, they serve different functions and address different risks.
| Aspect | Shareholders Agreement | Company Constitution |
|---|---|---|
| Legal nature | Private contract between shareholders | Internal governance document under the Corporations Act |
| Who it binds | Only the shareholders who sign it | The company and all members (shareholders) |
| Public or private | Confidential document | Public document registered with ASIC |
| Amendment process | Amended by mutual consent of parties | Requires special resolution (typically 75% vote) |
| Flexibility | Can include any lawful terms parties agree to | Must comply with mandatory Corporations Act provisions |
| Typical content | Exit mechanisms, transfer restrictions, dispute resolution, deadlock provisions, funding obligations, confidential commercial terms | Share classes, director powers, meeting procedures, dividend rules, share transfer procedures |
| Registration | Not registered with ASIC | Must be lodged with ASIC |
| Enforceability | Enforceable as a contract between parties | Enforceable as a statutory contract under section 140 |
| When conflicts arise | Binds the shareholders who signed it | Governs corporate procedures; both documents are typically upheld |
| Best for | Specific shareholder relationships, confidential arrangements, detailed exit provisions | General company governance, statutory compliance, public record of company rules |
Most Australian companies with multiple shareholders benefit from having both documents working together. The key is ensuring your agreement explicitly states how it interacts with the constitution and which document prevails in specific circumstances.
What Does An Australian Shareholders Agreement Look Like
In Australia, a shareholders agreement depends entirely on your business structure, ownership split, and commercial objectives. A two-person 50/50 venture requires different provisions than a company with five shareholders at varying equity levels. Technology startups with planned venture capital rounds include different clauses than family businesses or professional service firms.
The following provisions appear in most Australian shareholders agreements, though their specific terms vary significantly by situation.
Shareholding And Voting Rights
This section documents each shareholder’s current equity percentage and clarifies how voting power operates beyond the one-share-one-vote default. Some agreements attach enhanced voting rights to certain share classes or require unanimous consent for specific decisions regardless of ownership percentage. Pre-emptive rights clauses give existing shareholders first opportunity to purchase new shares before the company issues them to outsiders.
Decision-Making And Reserved Matters
Reserved matters provisions list decisions that require unanimous or supermajority approval instead of simple majority voting. Common reserved matters include taking on debt above certain thresholds, selling major assets, entering related party transactions, changing business direction, or hiring key executives. These clauses protect minority shareholders from being outvoted on fundamental company changes.
Transfer Of Shares And Exit Provisions
Transfer restrictions prevent shareholders from selling shares to third parties without offering them to existing shareholders first (right of first refusal). Drag-along rights let majority shareholders force minority shareholders to join in a sale to external buyers. Tag-along rights allow minority shareholders to include their shares in any sale the majority shareholders negotiate. Exit provisions might also include forced buyout mechanisms, retirement procedures, or what happens when shareholders die or become incapacitated.
Dividends And Funding Obligations
Dividend policies set expectations about profit distribution versus reinvestment in the business. Some agreements require specific dividend payment schedules or link distributions to financial performance metrics. Funding obligations address whether shareholders must contribute additional capital if the company needs it, what happens if someone cannot or will not contribute, and whether that triggers dilution or other consequences.
Information Rights And Access To Records
Information rights establish what financial and operational information shareholders can access and how frequently they receive updates. Minority shareholders often negotiate rights to quarterly financial statements, annual budgets, board observer status, or the ability to inspect company books and records. The level of access typically varies by shareholding percentage and includes confidentiality obligations preventing shareholders from sharing sensitive business data.
Dispute Resolution Mechanisms
Australian shareholders agreements typically include escalating dispute resolution processes before litigation becomes an option. This might start with good faith negotiation, move to mediation, then potentially arbitration. Deadlock provisions become critical in 50/50 ownership structures where neither party can outvote the other. Common deadlock solutions include buy-sell mechanisms, casting votes for independent directors, or predetermined exit procedures.
Who Should Sign The Shareholders Agreement
Every current shareholder should sign a shareholders agreement to ensure all parties are bound by the same terms. In Australian practice, the company itself often becomes a party as well, which helps enforce certain provisions and ensures directors acknowledge and comply with restrictions in the agreement. If even one shareholder refuses or is excluded, the agreement creates different rights and obligations for different shareholders, which undermines its purpose.
New shareholders who join after the initial agreement typically must execute a deed of accession or sign the existing agreement as a condition of acquiring shares. Most shareholders agreements include provisions requiring this, making it impossible for someone to buy shares without becoming bound by the agreement’s terms.
Risks Of Using A "Shareholders Agreement Template"
“Shareholders agreement template Australia” options flood the internet, but using one without proper review creates specific legal and commercial risks that many businesses only discover when disputes arise. Templates cannot account for your particular ownership structure, business model, or the relationships between shareholders. What works for a 50/50 partnership looks nothing like what a company with three shareholders at 60/30/10 needs.
The following are classic examples of what a generic shareholders agreement template often fumbles.
Deadlock Provisions That Don't Suit Your Ownership Structure
Deadlock provisions in templates often assume equal ownership splits. If you use a template's standard deadlock clause in an unequal ownership structure, you might accidentally give minority shareholders veto power over decisions the majority should control.
Conversely, templates might not include sufficient minority protections when one shareholder holds 51% or more, leaving smaller shareholders without recourse when fundamental disagreements arise.
Exit Clauses With Generic Thresholds
Exit clauses in templates frequently include drag-along and tag-along rights at generic percentage thresholds that don't suit your situation. A template might give a 51% shareholder unlimited drag-along power, or it might set the threshold at 75%, neither of which reflects what you actually negotiated with co-founders.
These provisions become particularly problematic when founders discover that a template's exit terms unintentionally prevent them from selling or force them to sell when they don't want to.
Constitution Conflicts And Contradictions
Templates that don't cross-reference your company constitution create contradiction risks. Your agreement might include specific transfer restrictions while your constitution allows unrestricted transfers, or vice versa.
Courts will attempt to reconcile both documents, but ambiguity leads to expensive legal disputes over which provision prevails and whether shareholders or the company can enforce certain rights.
How Can A Contract Lawyer Help
A contract lawyer reviews your ownership structure, business objectives, and existing company constitution before tailoring a shareholders agreement to your specific situation. They identify whether standard provisions in your draft agreement actually protect your interests or create unintended vulnerabilities.
For minority shareholders, lawyers ensure the agreement includes sufficient reserved matters and anti-dilution protections. For majority shareholders, they confirm exit mechanisms and decision-making thresholds reflect the control you negotiated.
Lawyers also check that your shareholders agreement and company constitution work together rather than creating conflicting obligations. They flag whether certain provisions should sit in the constitution (as replaceable rules) or remain in the private agreement, and whether you need to amend your constitution to align with the agreement’s terms.
Summary
- A shareholders agreement is a private contract between shareholders that sets out governance, decision-making, and exit processes beyond what the Corporations Act and company constitution provide.
- Businesses typically need a shareholders agreement when multiple shareholders own equity and want certainty around control, transfers, disputes, and exit scenarios.
- Typical provisions include shareholding and voting rights, reserved matters requiring supermajority approval, transfer restrictions and exit mechanisms, dividend policies, funding obligations, information rights for minority shareholders, and dispute resolution processes including deadlock provisions.
- Templates create risks because they cannot account for your specific ownership structure, business model, or relationship dynamics between shareholders, often including deadlock provisions, exit clauses, or transfer restrictions that don’t suit your situation.
- Legal advice becomes appropriate when you’re establishing shareholding structures, bringing in new investors, equalising or changing ownership, or reviewing an existing agreement that may conflict with your company constitution.
About Mark Lazarus – Director, Lazarus Legal
Admitted in both Australia and the UK, Mark brings more than two decades of global legal experience to Lazarus Legal. Having worked as a barrister, in private practice, and as in-house counsel for a major international consumer brand he combines courtroom-honed advocacy with commercial insight. Specialising in commercial law, intellectual property and dispute resolution, Mark advises startups, creative businesses, and established enterprises on transactions, trademarks, contract drafting, and litigation strategy. His cross-jurisdictional background and history as a former in-house legal director give clients confidence that their legal issues will be managed with both strategic foresight and commercial realism.