Shareholder Agreement Lawyers: Practical Guidance For Startups And SMEs

If you’re building a startup or growing an SME with more than one owner, it won’t be long before you run into the big questions:

• Who actually gets the final say on key decisions?
• What happens if a co-founder wants out (or stops pulling their weight)?
• How do you bring in investors without losing control?
• What if a shareholder passes away, becomes unwell, or goes bankrupt?

This is where shareholder agreement lawyers can be incredibly valuable. A well-drafted shareholders agreement is one of those documents you hope you’ll never “need” - but if things change (and they usually do), it can save your business, your relationships, and a lot of money.

Note: This article is general information only and isn’t legal advice. Every business and share structure is different, so it’s a good idea to get advice tailored to your circumstances.

In this guide, we’ll walk you through what shareholders agreements are, when to get one, what to include, how the legal process usually works, and the common mistakes we see Australian businesses make.

What Do Shareholder Agreement Lawyers Actually Help You Do?

A shareholders agreement is a contract between the shareholders of a company. It sets the ground rules for how the company is owned, managed, and funded - and what happens when something changes.

Many business owners assume their company’s “rules” are already covered by:

• ASIC registration paperwork, or
• their constitution (or, if the company doesn’t have a constitution, the “replaceable rules” that may apply under the Corporations Act).

But in practice, those documents often don’t deal with the commercial issues that cause real disputes in growing businesses. That’s why working with shareholder agreement lawyers is often less about “paperwork” and more about designing a clear, practical playbook for your business (that fits alongside your constitution and the Corporations Act).

Key Problems A Shareholders Agreement Solves

• Decision-making gridlock: If you and your co-founder disagree, the company still needs a way to move forward.
• Unclear roles and expectations: Some shareholders work in the business, others are passive investors - it helps to document the difference.
• Equity and exits: If someone wants to sell their shares, there should be clear rules around who can buy them and on what terms.
• Funding and dilution: If the business needs capital, who contributes, and what happens if someone can’t?
• Protecting the business from “bad leavers”: If someone leaves under difficult circumstances, you’ll want the agreement to manage risk.

It’s also worth understanding how ownership differs from day-to-day control. A quick refresh on the director vs shareholder distinction can help you decide what needs to sit in the shareholders agreement versus your internal governance processes.

When Should You Engage Shareholder Agreement Lawyers?

Timing matters. If you wait until there’s tension, it becomes harder (and more expensive) to negotiate terms everyone can live with.

Most startups and SMEs should consider engaging shareholder agreement lawyers at one of these points:

1) When You Incorporate With More Than One Owner

If you’re setting up a company with two or more founders, your shareholders agreement is part of your core legal foundation - alongside your Company Constitution.

If you’re still at the business setup stage, it can help to work from a clear checklist like setting up a company so nothing gets missed.

2) Before You Bring In An Investor

Raising money is exciting - but it’s also a major risk point. Investors often want clarity on voting rights, reporting, board seats, and exit pathways.

A properly drafted agreement helps you avoid “accidental promises” made in emails, pitch decks, or quick handshake deals.

3) When Roles And Contributions Aren’t Equal

If one founder is full-time, one is part-time, and one is purely an investor, you’ll want the agreement to reflect that reality.

This may include funding obligations, decision-making rights, and what happens if someone stops contributing.

4) When You’re Scaling (Hiring, New Products, New Markets)

Growth increases complexity. You might be signing major client contracts, taking on employees, expanding into new regions, or building valuable IP. Clear shareholder rules make it easier to move quickly without internal uncertainty.

What Should Be In A Shareholders Agreement For Startups And SMEs?

There isn’t a one-size-fits-all template that works for every company (and that’s exactly why good shareholder agreement lawyers ask a lot of questions before drafting).

That said, there are common clauses most Australian startups and SMEs should consider.

Ownership, Classes Of Shares, And Equity Splits

Your agreement should clearly document:

• who owns what percentage of the company
• whether there are different share classes (and what rights attach to each)
• what happens if more shares are issued in future

This avoids confusion later - especially when investors, employee equity plans, or new co-founders enter the picture.

Decision-Making: Reserved Matters And Voting Thresholds

Not every decision should require everyone’s sign-off. But certain “big” decisions often should - for example:

• issuing new shares
• taking on significant debt
• selling major assets
• appointing or removing directors
• changing the nature of the business

Shareholder agreement lawyers often build a “reserved matters” list that sets out what decisions need unanimous approval, a special majority, or a simple majority.

Roles, Founder Commitments, And What Happens If They Change

If some shareholders are also employees or directors, your agreement can:

• define expected time commitment (e.g. full-time vs part-time)
• set performance or milestone expectations (where appropriate)
• deal with what happens if someone stops working in the business

In many cases, this sits alongside an Employment Contract (where someone is employed by the company) so the business relationship is properly documented from both angles.

Transfers Of Shares: Who Can Sell, When, And To Whom?

One of the biggest practical purposes of a shareholders agreement is controlling who can become a shareholder.

Common share transfer mechanisms include:

• Pre-emptive rights: if someone wants to sell, existing shareholders get first right to buy
• Approval requirements: transfers may be subject to conditions (for example, director approval) as long as the restriction is permitted by the company’s constitution and the Corporations Act
• Valuation mechanisms: a clear way to value shares (to reduce negotiation fights)
• Drag-along rights: majority shareholders can require minority shareholders to sell in a sale of the company
• Tag-along rights: minority shareholders can “come along” if the majority sells

If you’re already at the stage of moving equity around, the legal steps matter too - How To Transfer Shares is a good reminder that the paperwork and approvals need to be done correctly.

Funding And Capital Calls

Startups and growing SMEs often need further funding. Your shareholders agreement can set out:

• whether shareholders are expected to contribute more capital in future
• what happens if someone can’t (or won’t) contribute
• whether loans are allowed, and on what terms

These clauses can prevent resentment later, particularly if one shareholder keeps “saving” the business with cash injections while others are diluted or protected.

Deadlock And Dispute Resolution

Even great co-founders disagree. A deadlock clause creates a pathway when decision-making gets stuck.

Depending on your business, this might involve:

• a cooling-off period and negotiation requirement
• mediation
• expert determination for valuation disputes
• buy-sell mechanisms (one party offers a price, the other must buy or sell at that price)

The goal isn’t to “plan for failure”. It’s to make sure a dispute doesn’t quietly destroy the business while everyone argues about who is right.

Confidentiality, IP, And Restraints

Many SMEs and startups are valuable because of their IP, systems, supplier relationships, and customer lists - not because of physical assets.

Your shareholders agreement can include protections like:

• Confidentiality obligations (during and after ownership)
• IP ownership confirmations (so it’s clear IP belongs to the company, not an individual)
• Non-compete / non-solicitation clauses (where appropriate and enforceable)

As your brand grows, it’s also worth protecting key brand assets early, including your name and logo via register your trade mark.

How The Process Works When You Work With Shareholder Agreement Lawyers

A well-drafted shareholders agreement is usually the outcome of good discovery, good drafting, and clear negotiation - not just dropping names into a template.

While every matter is different, here’s what the process often looks like when you engage shareholder agreement lawyers.

Step 1: Clarify Your Business Goals And Risk Areas

This is where we work through how your business actually operates (and how you want it to operate in 6-24 months). Useful questions include:

• Who are the founders and what are their roles?
• Are there any silent investors?
• Do you plan to raise capital soon?
• What is “non-negotiable” for you (control, exits, protection of IP, etc.)?
• Are there already disagreements or unclear expectations?

Step 2: Decide What Sits In The Shareholders Agreement vs Constitution

Some governance rules sit better in your constitution, while others are commercial arrangements best kept in the shareholders agreement.

Many companies have both - a tailored Shareholders Agreement and a constitution that matches the agreed structure.

Step 3: Draft The Agreement In Plain English (But Legally Strong)

Good shareholder agreement lawyers will draft terms that are legally enforceable, but also readable for business owners.

You should be able to pick up the document six months from now and still understand what it requires - without needing to interpret dense legal jargon.

Step 4: Negotiate And Finalise (Before It’s “Urgent”)

Finalising the agreement early (before a capital raise, before a major deal, before a co-founder leaves) tends to lead to better outcomes.

When everyone is calm, negotiations are usually faster, more collaborative, and less likely to become personal.

Step 5: Implement It Properly

Implementation matters. That includes ensuring:

• the right parties sign
• company records are updated
• director/shareholder approvals are correctly documented
• future processes (like share transfers) are aligned with the agreement

It’s a practical step, but it’s where many DIY agreements fall over.

Common Mistakes Startups Make Without Shareholder Agreement Lawyers

Some businesses avoid a shareholders agreement because it feels “too legal” or like something only big companies need.

But in reality, startups and SMEs often need it the most - because there’s usually less structure, fewer layers of management, and more reliance on a small number of key people.

Using A Generic Template That Doesn’t Match Your Business

Templates often miss important realities, like:

• one shareholder is doing all the work
• the business expects to raise money soon
• there are multiple share classes (or there will be)
• there’s a spouse/family trust in the ownership structure

If the document doesn’t match how you actually operate, it won’t help you when you need it most.

Not Addressing “What If Someone Leaves?”

Founders rarely want to talk about exits early - but founders leaving is normal. People change careers, move overseas, burn out, or have life events.

Without clear exit rules, you can end up with:

• a “ghost shareholder” who owns equity but contributes nothing
• an argument over share value
• a buyer you never wanted suddenly entering the business

Confusing Shareholder Rights With Director Powers

Shareholders own the company, but directors manage it (generally speaking). When these roles blur, disputes happen.

Getting the governance structure right early - and documenting it properly - prevents misunderstandings that can derail day-to-day operations.

Forgetting The Agreement Needs To Evolve

A shareholders agreement isn’t always a “set and forget” document. If you:

• raise money
• introduce an employee equity plan
• change your business model
• bring on a new co-founder

…it may need to be updated so it still reflects commercial reality.

Not Aligning Other Legal Documents With The Shareholders Agreement

Shareholder arrangements don’t exist in isolation. They should align with other key legal areas like:

• employment arrangements (if founders are also employees)
• IP ownership and licensing
• customer and supplier contracts
• privacy compliance if you collect personal information

As your business grows, you’ll often need a broader “legal stack” - and your shareholders agreement should fit neatly into that.

Key Takeaways

• Shareholder agreement lawyers help you set clear rules for ownership, decision-making, funding, and exits - before problems arise.
• A shareholders agreement is especially important for startups and SMEs because change is common (new investors, changing roles, scaling, and exits).
• Strong agreements usually cover voting and reserved matters, share transfers, funding, dispute resolution, and protections around confidentiality and IP.
• Templates can be risky if they don’t reflect how your business actually works or where it’s headed in the next 6-24 months.
• Your shareholders agreement should work alongside your constitution and other legal documents (like employment contracts and IP protections) so everything stays consistent.

If you’d like support with a shareholders agreement (or reviewing an existing one) for your startup or SME, you can contact Sprintlaw on 1800 730 617 or team@sprintlaw.com.au to arrange a free, no-obligations chat.