Shareholders' Agreements in Australia: A Practical Guide

What Is a Shareholders' Agreement?

A shareholders' agreement is a private contract between the shareholders of a company — and almost always the company itself — that governs how the company is managed and how ownership of its shares may change. It sits alongside the company's constitution, the replaceable rules in the Corporations Act 2001 (Cth), any employment agreements held by working shareholders, and any separate funding documents such as loan agreements, security documents, or insurance policies put in place to support buy-outs.

Unlike the constitution, the shareholders' agreement is not lodged with ASIC. It is not a public document, can include commercially sensitive matters such as agreed valuations, dividend policy and reserved matters, and can bind shareholders in their personal capacity as well as in their capacity as members of the company. It typically runs for the life of the company and is amended only with the consent of every party, unless a specified majority mechanism is built in.

The agreement is the principal mechanism by which the parties commit to the rules of engagement before disagreement arises. That is the entire point — to make the difficult conversations early, while the relationship is good, rather than late, while it is failing.

Why Private Companies Need One

The Corporations Act 2001 (Cth) and the company's constitution leave too much unsaid. Without a shareholders' agreement, an Australian private company has no real mechanism for:

• resolving deadlocks between 50/50 shareholders or directors;
• compelling the buy-out of a deceased or incapacitated shareholder's interest;
• preventing a shareholder from selling to a competitor;
• protecting minority shareholders from a controlling majority;
• requiring shareholders to participate proportionately in capital raises;
• imposing restraints of trade on departing shareholders;
• keeping confidential information confidential after a shareholder exits; and
• setting a clear and fair process for valuing an exit.

Each of those gaps becomes painfully visible at the worst possible time — usually when a relationship has already broken down. Litigation under sections 232 to 234 of the Corporations Act 2001 (Cth) (the oppression provisions) is expensive, slow and uncertain. A properly drafted shareholders' agreement displaces those problems by specifying, in advance, what happens at each turning point.

Shareholders' Agreement Versus Company Constitution

The constitution is the company's public rule book lodged with ASIC. It binds the company and every member as a statutory contract under section 140 of the Corporations Act 2001 (Cth). The shareholders' agreement is a private contract that binds only the parties who sign it.

Both documents typically deal with overlapping subjects: share issues, share transfers, classes of shares, voting rights, board composition and dividends. Where the two conflict, the shareholders' agreement binds the signatory parties as a matter of contract, but the constitution still governs the company's external dealings and any non-signatory shareholder. A well-drafted agreement requires each shareholder to vote and act in their capacity as a member to give effect to the agreement — including by amending the constitution where necessary to remove a conflict.

In practice we draft the two documents together so that the constitution carries the matters that should be public and should bind future shareholders automatically (share classes, pre-emptive rights, restrictions on transfer, director appointment mechanics), while the shareholders' agreement carries the commercially sensitive matters (agreed values, dividend policy, reserved matters, restraints, buy-sell triggers, insurance funding).

Founders and Family Businesses

The hardest shareholders' agreements to draft are the ones for founder teams and for family businesses, because in both cases the parties are reluctant to confront the possibility of disagreement at all. That reluctance is precisely the reason the agreement matters most.

For founder teams, the agreement should address vesting of founder shares (so that a founder who leaves early forfeits unvested equity), what happens if a founder is dismissed for cause, the treatment of dilution on future capital raises, decision-making on funding rounds and exits, and the path to liquidity for the founders themselves.

For family businesses, the agreement should address what happens on the death or incapacity of the founding generation, whether shares may pass to in-laws, what happens on the divorce of a family-member shareholder, the different treatment of active and passive family shareholders in dividends and decision-making, and the path to professional management if the business outgrows family capacity. Where the shares sit inside a family trust, the agreement must align with the trust deed and with the succession of the appointor and trustee — see our companion guide on what happens to a family trust when the appointor dies.

Decision-Making and Reserved Matters

By default, day-to-day management vests in the board (section 198A of the Corporations Act 2001 (Cth) where the replaceable rule applies, or the equivalent constitutional provision). A shareholders' agreement adjusts this default in two ways. First, it specifies a set of reserved board matters that require either unanimous board approval or the approval of a nominated director. Second, it specifies a set of reserved shareholder matters that require either unanimous shareholder approval, a special majority (often 75%), or the approval of specified shareholders.

Typical reserved shareholder matters include:

• amending the constitution or the shareholders' agreement;
• issuing new shares or options or convertible securities;
• incurring debt above a defined threshold;
• granting security over company assets;
• selling or licensing material assets or IP;
• entering or terminating contracts above a value threshold;
• changing the nature or scale of the business;
• declaring or varying dividend policy;
• appointing or removing the auditor;
• related-party transactions and director remuneration;
• commencing or settling material litigation; and
• commencing voluntary administration, liquidation or a scheme of arrangement.

Reserved matters are the principal mechanism by which minority shareholders retain influence over the decisions that matter most. They should be carefully calibrated — too few and the minority is exposed; too many and the company cannot function.

Director Appointments

Most shareholders' agreements link board representation to shareholding. A common structure provides that:

• each shareholder (or shareholder group) holding above a defined percentage is entitled to nominate one or more directors;
• the right is lost if the holding falls below the threshold;
• the appointing shareholder may remove and replace their nominee at will, with the other shareholders bound to vote in favour;
• the chair is appointed by the largest shareholder (or rotates) and may or may not hold a casting vote;
• nominee directors may rely on confidential information from the appointing shareholder, subject to the company's confidentiality obligations; and
• quorum and voting at the board are set so that no single director can block ordinary business.

Care is needed where a nominee director is also a senior employee — the duties owed under sections 180 to 184 of the Corporations Act 2001 (Cth) are owed to the company, not to the appointing shareholder, and conflicts must be managed.

Share Transfers

The default rule under a shareholders' agreement is that no transfer of shares is permitted except in accordance with the agreement and the constitution. Permitted transfers typically include transfers to spouses, children, family trusts and wholly-owned entities controlled by the transferring shareholder (with the transferee required to sign a deed of adherence and the original shareholder remaining bound). Every other transfer requires compliance with pre-emptive rights, board approval and (in some cases) shareholder approval as a reserved matter.

The agreement should also prohibit transfers to:

• identified competitors of the company;
• persons who are bankrupt, of unsound mind, or subject to disqualification under the Corporations Act 2001 (Cth);
• persons who have not signed a deed of adherence; and
• persons whose admission would breach a regulatory licence held by the company.

Pre-Emptive Rights

Pre-emptive rights operate on two events: a proposed transfer of existing shares and a proposed issue of new shares.

On transfer: a shareholder wishing to sell must first offer the shares to the other shareholders pro rata at a defined price (the offered price, an independently valued price, or a formula price). The other shareholders have a defined period to accept; if any portion is not taken up, a second-round offer is usually made; only after both rounds may the selling shareholder sell to an outsider (and only on terms no more favourable than those offered to the existing shareholders).

On new issue: the company must offer new shares pro rata to existing shareholders before issuing to outsiders, so that existing shareholders can maintain their percentage holding by participating. Exceptions are typically built in for issues to employees under an approved equity plan, issues as consideration for acquisitions, and issues under capital raises approved as a reserved matter.

Drag-Along Rights

Drag-along rights allow a majority shareholder (or a specified percentage — commonly 75% or more) accepting a bona fide third-party offer for 100% of the shares to compel the remaining shareholders to sell on the same terms. Without drag-along rights, a single minority holder can hold up the sale of the entire company. Drag-along clauses must be paired with protections so the dragged minority is not worse off than the controlling seller: equal price per share and form of consideration; equivalent warranties and indemnities (with liability limited to the minority's sale proceeds); pro rata sharing of transaction costs; and a minimum price floor below which the drag-along cannot be exercised.

Tag-Along Rights

Tag-along rights are the mirror image of drag-along rights. Where the majority accepts a third-party offer, the minority can require the buyer to also acquire their shares on the same terms. This prevents the majority from selling control to a stranger while leaving the minority locked in with a new and unknown controlling shareholder. Tag-along rights typically apply only to a sale of control (above a specified percentage) rather than to every transfer, so that ordinary pre-emptive transfers do not unintentionally trigger them.

Deadlock Provisions

Deadlock provisions are critical in 50/50 companies and in companies where reserved matters require unanimous shareholder approval. A typical tiered resolution path is:

1. good-faith negotiation between nominated senior individuals (often the founders themselves) for a defined period (commonly 30 days);
2. structured mediation under the rules of a recognised body — the Resolution Institute, ACICA or LEADR — with each party bearing their own costs and sharing the mediator's fee;
3. if mediation fails, a binding mechanism — expert determination for valuation issues, arbitration for contractual disputes, or a buy-out trigger such as a shotgun clause, a Russian roulette or a Texas shoot-out; and
4. as a last resort, a structured wind-up of the company.

Each mechanism has trade-offs. Shotgun clauses force an honest valuation but disadvantage shareholders with weaker financial resources. Russian roulette is similar but blind. Texas shoot-outs (sealed-bid auctions) preserve the business but reward whoever is most prepared. The right choice depends on the parties, the relative financial strength and whether the priority is to preserve the company or to allow a clean exit.

Funding Obligations

Shareholders are not automatically required to put more money into the company. The agreement should address when and how additional funding may be required, and the consequences for a shareholder who declines:

• capital raises by issue of new shares — pro rata participation, with dilution for non-participants;
• shareholder loans — the rate of interest, term, ranking and security;
• directors' guarantees of company debt — joint and several, with cross-indemnities between shareholders so the burden is shared pro rata;
• cash calls — circumstances in which all shareholders are required to contribute pro rata, with a dilution or interest penalty for default; and
• Division 7A consequences of any loan from the company to a shareholder or associate.

Dividends and Distributions

The agreement should state the company's dividend policy — for example, that a defined percentage of distributable profits will be paid as franked dividends annually, subject to the board being satisfied of solvency under section 254T of the Corporations Act 2001 (Cth) and the company's working capital and growth requirements. A clearly stated dividend policy is one of the most effective protections against shareholder oppression, because it prevents the majority from accumulating profits in the company and denying the minority any return on its investment.

The agreement should also deal with franking credits, the treatment of preferred dividend classes (if any), the allocation of dividends between active and passive shareholders in a family business, and the interaction with director loan accounts.

Restraints of Trade

A restraint of trade clause prevents a shareholder (and often any related entity or employed family member) from competing with the company, soliciting its customers, poaching its staff, or interfering with its suppliers for a defined period after they cease to hold shares. Restraints are enforceable in Australia only to the extent reasonably necessary to protect the legitimate interests of the company — its goodwill, customer connections, confidential information and workforce.

We draft restraints as cascading combinations of duration (e.g. 24 months / 18 months / 12 months / 6 months) and geography (e.g. Australia / Victoria / Greater Melbourne / within a 10 km radius of any company premises) so that the court can sever the unenforceable limbs and leave the enforceable ones standing. The reasonableness of a restraint on the sale of shares is judged more generously than the same restraint imposed on an employee — the shareholder has been paid for the goodwill.

Confidentiality

The agreement should impose a perpetual confidentiality obligation on each shareholder, their directors, advisers, employees, family members and related entities with respect to all confidential information of the company — customer lists, supplier terms, pricing, financial information, business plans, IP, and the existence and terms of the shareholders' agreement itself. The obligation should survive the cessation of the relevant person's shareholding indefinitely, subject to the usual carve-outs for information that becomes publicly available, was independently developed, or must be disclosed by law.

Exit Events

The agreement should map every realistic exit and specify the consequences:

• Voluntary exit — pre-emptive sale to other shareholders on agreed terms;
• Compulsory exit (good leaver) — sale at full value on death, TPD, retirement after a defined age, or termination of employment without cause;
• Compulsory exit (bad leaver) — sale at a discounted value on dismissal for cause, serious breach, bankruptcy, or fraud;
• Sale of the company — drag-along and tag-along mechanisms on a third-party offer; and
• Initial public offering — conversion of the agreement to standard public-company arrangements, with founder lock-ups.

Each exit needs a defined trigger, a defined valuation method, a defined payment mechanism (lump sum, instalments, or insurance-funded), and a defined treatment of related issues (loan accounts, guarantees, leave entitlements, restraints, confidentiality). For broader exit planning, see our companion guide on why every business owner needs an exit strategy.

Buy-Sell Mechanisms

The buy-sell mechanism is the operational heart of the agreement. It is the binding obligation on a departing shareholder (or their estate) to sell, and on the remaining shareholders or the company to buy, at the price determined by the agreed valuation method, funded by the agreed funding source. Buy-sell mechanisms typically apply on:

• death and TPD events — funded by insurance held under a coordinated ownership structure;
• retirement after a defined age — funded by retained earnings, vendor finance or new investment;
• resignation as an employee shareholder — funded as agreed;
• serious breach or default events — funded by vendor finance over a defined period, often at a discount to full value; and
• bankruptcy or insolvency events — typically at a discount to discourage opportunistic behaviour by trustees.

For deeper coverage, see our full guide on buy/sell agreements.

Death or Incapacity of a Shareholder

On the death of a shareholder, the shares vest in the deceased's legal personal representative (the executor named in the Will, or the administrator if no Will). The LPR cannot exercise voting rights or receive dividends in their own right until the shares are formally transmitted into their name — a process that requires a grant of probate or letters of administration and registration of the transmission with the company.

The shareholders' agreement should compel the LPR to transfer the shares to the remaining shareholders or to the company (on a buy-back) at the agreed price, funded by insurance where possible. Without that compulsion, the remaining owners may end up in business with a beneficiary who has neither skills nor inclination to participate, or with multiple beneficiaries who disagree among themselves. For deeper coverage, see our companion guides on what happens to a business when an owner dies and what happens to a company when a director or shareholder dies.

On the incapacity of a shareholder — typically defined by reference to the appointment of an administrator under the Guardianship and Administration Act 2019 (Vic) or equivalent state legislation — the same buy-sell mechanism usually applies. TPD insurance is the standard funding tool. Loss of capacity by a sole director / sole shareholder company has additional consequences addressed in our companion guide.

Dispute Resolution

The agreement should contain a tiered dispute resolution clause:

1. good-faith negotiation between nominated senior individuals for a defined period;
2. structured mediation under the rules of a recognised body, with carve-outs for urgent injunctive relief;
3. binding arbitration under the Commercial Arbitration Act 2011 (Vic) or expert determination for valuation issues; and
4. litigation in the Supreme Court of Victoria for matters not suited to arbitration — restraint enforcement, oppression claims, urgent injunctions, freezing and search orders.

For deeper coverage of the dispute path, see our companion guide on resolving a business dispute before court and on the use of letters of demand.

Minority Shareholder Protection

A shareholders' agreement is the principal vehicle by which a minority shareholder protects its investment. Minority protections typically include:

• reserved matters requiring minority approval;
• a board seat or right of observation;
• pre-emptive rights on new share issues to prevent dilution;
• tag-along rights on a control sale;
• information rights — audited financial statements, monthly management accounts, access to records and to senior management;
• restrictions on related-party transactions and director remuneration above market;
• a defined dividend policy preventing the majority from accumulating profits indefinitely; and
• clear exit mechanisms so the minority is not trapped indefinitely.

Oppression Risk

Sections 232 to 234 of the Corporations Act 2001 (Cth) give a shareholder a statutory remedy where the conduct of the company's affairs (or an act, omission or resolution) is either contrary to the interests of members as a whole or oppressive to, unfairly prejudicial to, or unfairly discriminatory against a shareholder. The court has wide powers — to wind up the company, to order a buy-out of the oppressed shareholder's shares, to modify the constitution, or to restrain conduct.

Conduct that has been found to be oppressive includes denying the minority access to financial information, paying excessive remuneration to majority-aligned directors, refusing to declare dividends while accumulating profits, issuing new shares to dilute a minority, and using company funds for the personal benefit of the majority.

A well-drafted shareholders' agreement reduces oppression risk dramatically by making the rules transparent, the information rights enforceable, the dividend policy clear, and the exit mechanisms predictable. It does not eliminate the statutory remedy, but it gives both sides a clear framework within which to operate before the court is asked to intervene.

Common Mistakes

• Conflict with the constitution. The two documents say different things about transfers, share classes, or board appointments — leaving the question of which prevails to litigation.
• Vague trigger definitions. "Long-term illness", "serious breach" or "incapacity" without testable criteria leaves the question to the parties at the worst possible time.
• No valuation date specified. Without a defined valuation date the parties argue about whether to use the date of the trigger event, the date of completion, or the most recent annual valuation.
• Insurance out of sync. Policy values drift below the agreed price, or ownership structures change without the agreement being updated.
• No release of guarantees. The departing shareholder remains personally liable on company guarantees long after their exit.
• Loan accounts ignored. The agreement says nothing about director loan accounts, undrawn dividends, or Division 7A loans on exit.
• No deed of adherence requirement. A new shareholder is registered without signing, leaving them outside the agreement.
• No review clause. The agreement is never reviewed and falls out of date with the business, the relationships and the law.
• No alignment with Wills. A founder's Will leaves the shares to a beneficiary who cannot lawfully receive them under the agreement's transfer restrictions.
• No alignment with employment. A working shareholder is dismissed but the agreement contains no good-leaver / bad-leaver mechanism.

Practical Checklist

Before issuing shares to a co-founder, employee or investor, work through the following checklist:

1. Identify every party — shareholders, the company, trustees, controllers, key founders and (where relevant) spouses.
2. Confirm the share classes, the rights attaching to each class and the voting structure.
3. Define reserved board matters and reserved shareholder matters.
4. Specify board composition, nominee director rights, chair and casting vote.
5. Define permitted transferees and the deed of adherence requirement.
6. Build pre-emptive rights on transfer and on new issue.
7. Build drag-along and tag-along rights with appropriate thresholds and protections.
8. Build a tiered deadlock resolution mechanism.
9. Specify funding obligations — cash calls, capital raises, shareholder loans, guarantees and the consequences of default.
10. State the dividend policy and franking treatment.
11. Draft cascading restraints of trade and a perpetual confidentiality obligation.
12. Map every exit event and the buy-sell mechanism for each.
13. Choose the valuation method (annual agreed value, formula, independent valuer, or hybrid) and the valuation date.
14. Coordinate insurance ownership with the buy-sell clause.
15. Address Division 7A, CGT roll-over and small business CGT concessions with the accountant.
16. Specify dispute resolution, governing law and jurisdiction.
17. Include a periodic review clause (at least every two years and on material events).
18. Align with the company constitution, founder Wills, family trust deeds and employment contracts.
19. Sign, date, witness and store originals with the company secretary and each party's lawyer.

When to Obtain Legal Advice

Engage a commercial lawyer before any shares are issued to a co-founder, employee or investor — not after a dispute has emerged. The cost of a properly drafted shareholders' agreement at the outset is a fraction of the cost of litigating an oppression claim, a contested buy-out or a deadlock after the relationship has broken down. Where shares are being acquired in an existing business or company, a buyer's lawyer should also review (or require the buyer to become a party to) the existing shareholders' agreement before settlement — see our companion guide on buying a business in Victoria and on business sale agreements. For broader succession planning across the lifecycle of the business, see our cornerstone guide to business succession planning.

Frequently Asked Questions