How To Get Rid Of A 50/50 Business Partner In Australia

Being stuck at 50/50 with a co-founder can be stressful - especially if you no longer share the same vision, pace or values. You might be asking: can I remove my 50/50 business partner, and how do I do it legally?

The short answer is: yes, there are options. The practical pathway depends on your structure (company vs partnership), what your documents say, and whether your partner is willing to negotiate.

In this guide, we’ll walk you through the key steps to separate cleanly, protect the business and reduce risk - from checking your documents to structuring a buyout and documenting the transfer the right way.

What Does “50/50 Business Partner” Mean In Australia?

“50/50” generally means both founders have equal control and economic rights. In a company, this usually looks like each person holding 50% of the shares, and often each is a director. In a general law partnership, it usually means profits, losses and decision-making are shared equally under your partnership terms.

Why this matters: in a true 50/50 scenario, neither party can unilaterally force decisions or remove the other without a legal basis. That’s why your first step is to review the rules that govern your relationship and the business.

Step 1: Check Your Documents And Company Records

Before you take action, gather and review the documents that determine your rights. These often include:

• Shareholders Agreement (company): This is the rulebook between owners. Look for deadlock procedures, buy-sell mechanisms (e.g. shotgun, Russian roulette), valuation methods, transfer restrictions and drag/tag clauses. If you have one, your exit roadmap is usually in there. If you don’t have one, it’s still worth understanding what a Shareholders Agreement would cover, as it frames the concepts you’ll negotiate.
• Company Constitution (company): Your constitution sets core rules for share transfers, director appointments and meetings. Check if it sets a process for resolving deadlock or approving transfers. If you need to confirm the current rules, review your Company Constitution alongside ASIC records.
• Founders’ emails or term sheets: Early written understandings (even if informal) can help interpret intentions and guide negotiation.
• Partnership Agreement (if not a company): For unincorporated partnerships, the agreement should set out exit steps, notice periods, valuation and dissolution process. If you don’t have one, default partnership law may apply and often requires a negotiated exit or dissolution.

Also confirm the cap table and roles. Are you both directors? Do any options, vesting or convertible notes exist? These details affect leverage and logistics.

Step 2: Plan And Execute Your Exit

Once you know the rules, map out your preferred pathway. A clean exit usually follows three phases: choose the mechanism, negotiate the terms, then paper the deal. Below are the most common mechanisms.

Option A: Negotiate A Buyout

This is the simplest and most common approach. One owner buys the other’s shares or partnership interest for an agreed price, paid upfront or over time (with security if needed). You’ll need to agree on valuation, payment structure, release of claims and any restraints or ongoing consultancy.

To protect both sides, it’s standard to sign a settlement with mutual releases. A short, fair release can prevent disputes after completion - see how a Deed of Release and Settlement works in practice.

Option B: Trigger A Contractual Exit Clause

If your Shareholders Agreement includes a shotgun/Russian roulette, drag-along, tag-along or forced buy-sell clause, you may be able to initiate that process. Follow the clause precisely (notice, timelines, valuation method), as courts expect strict compliance.

Option C: Third-Party Sale Or Split

If neither party wants to buy the other out, you could market the business for a third-party sale and split proceeds. Alternatively, you may carve out assets and go your separate ways (subject to IP ownership and client transfer rules).

Option D: Dissolve The Partnership (If Not A Company)

For unincorporated partnerships, a negotiated dissolution can be clean and quick, especially if trading names, assets and liabilities can be divided sensibly. Where possible, document the terms in a formal dissolution deed to avoid future claims or misunderstandings.

Tip: Keep Operations Stable During Negotiations

Agree an interim governance plan (what decisions can be made, who approves spending, who speaks to customers and staff) to protect value while you negotiate the exit. Losing key customers or team members mid-deal hurts both sides.

Step 3: Value The Shares And Paper The Transfer

Valuation is the heart of most 50/50 exits. Getting it right (or at least, agreed) keeps negotiations on track.

How Do We Agree A Value?

• Use a pre-agreed formula: Your Shareholders Agreement may specify a method (e.g. independent valuer, EBITDA multiple, revenue multiple or net asset value). If so, follow that path.
• Agree a number commercially: If you’re aligned on a fair amount, document it and move on. Certainty has value.
• Get an independent valuation: Where there’s a gap, a valuer can provide an objective range. For context on common methods, see Valuing Shares.

What Documents Do We Need?

For a company buyout, you’ll typically need:

• Share Sale Agreement: Sets out the price, completion steps, warranties, restraints, and any earn-out or vendor finance.
• Board/Shareholder Approvals: Minutes or resolutions approving the transfer, director changes and bank account authority changes.
• Share Transfer Forms & Registers: Complete the paperwork so the legal and beneficial ownership actually moves - here’s a practical primer on How To Transfer Shares.
• ASIC Notifications: Update company details by the deadlines - this ASIC transfer of shares guide outlines the key compliance steps.
• Settlement Deed: A mutual release to close off potential claims, IP assignments if needed, and confidentiality obligations.

If you’re selling shares to an external buyer, read up on the broader process and risks in Removing A Shareholder and consider whether warranties and indemnities should be limited.

Will It Be A Share Deal Or Asset Deal?

A share sale is cleaner for continuity (customers, contracts and licences usually stay with the company). An asset sale can be useful if you want to leave liabilities behind or only split parts of the business. You’ll weigh tax and commercial impacts with your advisers.

What If There’s Misconduct, Deadlock Or No Agreement?

Sometimes you can’t strike a deal. In those cases, other legal pathways may apply. The right option depends on the facts and your documents, but the common scenarios are below.

Deadlock With No Exit Clause

If your Shareholders Agreement doesn’t include a deadlock mechanism, you still have options. Consider mediation first - it’s fast, private and can unlock creative solutions (like a staged buyout). If that fails, potential pathways include:

• Negotiated dissolution or sale: Agree to appoint an independent broker or valuer to drive a sale process.
• Members’ remedies (company law): In serious cases (e.g. oppressive conduct), there may be court remedies. These are complex, expensive and uncertain - negotiation is usually better for value preservation.

Misconduct Or Material Breach

Evidence of fraud, serious breach of duties, or harming the business can justify stronger action. Your constitution or Shareholders Agreement may allow removal as a director or a forced transfer of shares at a defined price in certain breach scenarios. Gather evidence, get advice early and follow the process to the letter.

Partner Also An Employee?

If your co-founder is also employed by the company, you may need to manage both the employment exit and the ownership exit. Keep those streams separate. Employment issues should follow a fair process and comply with workplace laws; ownership is handled through share transfer and corporate approvals.

Partnership (Not A Company) With No Agreement

Where a partnership has no written terms, default rules may allow any partner to end the partnership on notice, but there’s still work to do: apportion assets/liabilities, deal with the trading name, and document releases. A well-drafted dissolution deed helps avoid later disputes; our Partnership Dissolution Agreement approach covers the essentials.

Key Legal Documents To Prevent Future Problems

Even if your current exit is smooth, take the opportunity to future-proof your governance. The right documents reduce the risk of deadlock and make exits faster, fairer and cheaper.

• Shareholders Agreement: Sets out decision-making, information rights, deadlock resolution, buy-sell mechanisms, valuation methods and restraints - this is your playbook for sticky moments.
• Company Constitution: Aligns with your shareholders terms, clarifies director powers, meetings, share classes and transfer processes.
• Board/Founder Resolutions: Record key decisions cleanly so you’re not arguing about who agreed to what years later.
• IP Assignment & Confidentiality: Make sure the business, not the individual founder, owns key IP and data, and that departing founders keep information confidential.
• Deed of Release and Settlement (at exit): Close out claims, define restraints, handle handover, and protect customers and staff relationships when someone leaves.
• Clear Share Transfer Process: Keep templates ready for off-market transfers, and a checklist of approvals and ASIC updates to avoid administrative delays.

If you’re mid-negotiation, it’s sensible to get help drafting the heads of agreement, the transfer documents and the final settlement so each step lines up cleanly with the next.

Key Takeaways

• A 50/50 split limits unilateral action, so your first move is to review your governing documents - the Shareholders Agreement and Company Constitution usually set the exit roadmap.
• The cleanest solution is a negotiated buyout with agreed valuation, a sensible payment structure and a mutual release to close off claims.
• Follow a clear process: decide the mechanism, settle the price, then complete the paperwork - this includes share transfer forms, approvals and ASIC updates (see How To Transfer Shares and the ASIC transfer of shares checklist).
• When valuation is contested, consider an independent expert or a formula already set in your documents; common methods are outlined in Valuing Shares.
• If there’s misconduct or a deep deadlock, explore mediation first, then legal remedies as a last resort; for complex separations, this primer on Removing a Shareholder is a helpful overview.
• Lock in future protection with strong governance: clear owners’ terms, decision rules and exit mechanisms make later separations faster and less costly.

If you’d like a consultation on separating from a 50/50 business partner in Australia, you can reach us at 1800 730 617 or team@sprintlaw.com.au for a free, no-obligations chat.