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Hidden risks in Shareholder Agreements and how to avoid them

  • Writer: Whelan Lawyers
    Whelan Lawyers
  • Apr 19
  • 5 min read

Updated: Jul 16



Two people discussing a contract. One holds a pen and gestures, while the other signs the document. Open book and scales in the background.

Introduction: Why Shareholder Agreements Matter for Businesses


When establishing or investing in a company, the shareholder agreement represents perhaps the most critical legal document you'll encounter. It defines relationships between shareholders, establishes governance structures, and outlines crucial procedures for everything from decision-making to company exits. Yet many entrepreneurs and investors rush this stage, using generic templates or—worse—operating without any formal shareholder agreement at all.


For startups, SMEs, and investors, these oversights can lead to significant legal complications. The agreement supplements your company constitution and addresses commercial arrangements not covered by the Corporations Act 2001 (Cth). When disputes arise, a well-drafted shareholder agreement becomes your roadmap to resolution.


This guide examines the key risks in shareholder agreements and outlines essential protections every shareholder should understand before signing.

The Legal Foundation of Shareholder Rights

The relationship between shareholders in Australian companies is governed by multiple layers of regulation, including:

  1. The Corporations Act 2001 (Cth).

  2. The company constitution.

  3. The shareholder agreement.

While the Corporations Act and constitution provide standard frameworks, the shareholder agreement customises arrangements to your specific business needs and shareholder relationships. Without this customisation, you risk finding yourself in scenarios that the corporate law doesn't adequately address.

Five Critical Shareholder Agreement Risks to Avoid

1. Inadequate Deadlock Resolution Mechanisms

In companies with equally distributed shareholding (particularly 50/50 splits), decision-making deadlocks can completely paralyse operations. Without specific deadlock resolution provisions, shareholders may find the only available legal option is winding up the business—a drastic outcome for what might be a resolvable disagreement.


Prevention Strategy: Ensure your shareholder agreement includes specific deadlock breaking mechanisms such as:

  • Chair casting votes in board meetings

  • Structured mediation pathways

  • Russian roulette or Texas shoot-out provisions

  • Independent expert determination processes


These mechanisms, properly drafted within Australian legal frameworks, can prevent minor disagreements from threatening the company's existence.

2. Insufficient Exit and Liquidity Provisions

Shareholder liquidity—the ability to convert shares to cash—remains one of the most contested areas in Australian corporate disputes. Two particular clauses deserve careful attention:


  • Drag-along rights allow majority shareholders to force minority shareholders to join in selling the company. Without these, a small shareholder could block an otherwise advantageous exit.

  • Tag-along rights protect minority shareholders by allowing them to join a sale on the same terms as majority shareholders. Without these protections, minority shareholders might be left behind when major shareholders exit.


Both provisions must be carefully balanced to protect all shareholder interests while maintaining company flexibility. Australian courts have scrutinised these provisions closely in recent cases, emphasising the need for fair and transparent implementation.

3. Restrictive Pre-emptive Rights

Pre-emptive rights give existing shareholders first opportunity to purchase new shares or shares being sold by other shareholders. While this protects against unwanted dilution, overly rigid pre-emptive rights can:

  • Delay critical capital raising during time-sensitive opportunities.

  • Deter strategic investors who want certainty in their investment.

  • Create administrative burdens during financing rounds.


Additional Consideration: Companies must navigate ASIC requirements and disclosure obligations when issuing new shares. An inflexible pre-emptive rights clause can compound these regulatory requirements, creating further delays.

4. Inadequate Founder Vesting and Share Buyback Provisions

When founders or key shareholders depart, poorly drafted shareholder agreements can leave companies in precarious positions:


  • Without proper vesting schedules, departing founders may retain full equity despite no longer contributing

  • Without buyback mechanisms, companies may have no legal right to reclaim shares from departees

  • Valuation methodologies for buybacks may be unclear or contested

Australian case law has repeatedly emphasised that buyback provisions must be clear, fair, and commercially reasonable to be enforceable.

5. Missing Intellectual Property and Restraint Clauses

Protecting company assets extends beyond share ownership. A comprehensive shareholder agreement should address:


  • IP Assignment: Clear provisions ensuring all intellectual property developed by shareholders is properly assigned to the company

  • Restraint of Trade: Appropriate non-compete clauses preventing shareholders from establishing competing businesses upon exit

  • Confidentiality: Protections for company information and trade secrets


Restraint clauses must be reasonable in scope, geography, and duration to be enforceable. Your shareholder agreement should reflect these requirements while providing meaningful protection.

Essential Components of Shareholder Agreements

A properly structured shareholder agreement for companies should address:


  1. Shareholding Structure and Rights: Classes of shares, voting rights, dividend policies.

  2. Decision-Making Framework: Board composition, reserved matters requiring special majorities, information rights.

  3. Capital and Financing: Processes for raising capital, pre-emptive rights, anti-dilution protections.

  4. Exit Mechanisms: Tag-along and drag-along rights, conditions for share transfers, pre-emptive purchase rights.

  5. Dispute Resolution: Deadlock provisions, mediation requirements, expert determination processes.

  6. Shareholder Obligations: Non-compete restrictions, confidentiality, intellectual property assignment.

  7. Valuation Methodologies: Clear formulas for share valuation in various scenarios.

  8. Default and Remedy Provisions: Consequences for breaching the agreement, remedies available to non-defaulting shareholders.

Practical Guidance for Shareholders

If you're establishing, joining, or investing in a company, these practical steps can help protect your shareholder position:


  1. Seek Legal Advice: corporate law has unique requirements that templates may not address.

  2. Consider Your Exit Strategy Early: How and when you might want to sell should inform your approach to the shareholder agreement.

  3. Address Founder Dynamics: Clear provisions for what happens if a founder leaves can prevent difficult disputes.

  4. Balance Protection with Flexibility: Overly restrictive agreements can hamper business growth and capital raising.

  5. Regularly Review and Update: As your company grows, ensure your shareholder agreement evolves accordingly.

Conclusion: Protecting Your Shareholder Rights

A well-drafted shareholder agreement isn't just paperwork—it's essential protection for your investment, control rights, and business relationships. In the Australian legal context, where corporate law continues to evolve through legislation and case law, a customised shareholder agreement provides certainty where statutory provisions may be unclear.


Before signing any shareholder agreement, ensure it addresses the specific needs of your business and provides fair, balanced protection for all parties involved. The investment in proper legal advice at this stage can prevent significantly costlier disputes in the future.


For founders, investors, and shareholders in companies, understanding these potential traps is the first step toward creating lasting, productive business relationships built on a solid legal foundation.


Frequently Asked Questions About Shareholder Agreements

Q: Can I rely solely on the company constitution instead of creating a shareholder agreement?

A: No. While the constitution establishes basic governance rules, it typically doesn't address important commercial issues like exit mechanisms, share buybacks, or founder departures. Under Australian law, a shareholder agreement provides essential protections that the constitution alone cannot deliver.

Q: Are shareholder agreements legally binding in Australia?

A: Yes. When properly executed, shareholder agreements create legally binding obligations between the signing parties. Australian courts will generally enforce these agreements provided they don't contravene the Corporations Act or other statutory requirements.

Q: What risks do companies face without a formal shareholder agreement?

A: Without a shareholder agreement, you're relying entirely on the Corporations Act and informal understandings between shareholders. This creates significant risks including deadlocked decision-making, inability to force share transfers, unclear exit mechanisms, and no protection against departing shareholders establishing competing businesses.


This article provides general information only and does not constitute legal advice. You should not rely on it as a substitute for specific legal or other professional advice tailored to your circumstances. Always seek legal advice before making decisions relating to shareholder agreements.
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