Diluting Shares in Australia: What Small Companies Should Know

Bringing in new capital or key talent is an exciting milestone - but it often means you’ll be “diluting shares”. If you run a small company in Australia, understanding how dilution works (and how to manage it) is essential for protecting control, keeping investors aligned, and maintaining momentum.

In this guide, we break down what diluting shares means in plain English, when it might make sense, the legal steps to do it properly, and how to safeguard existing shareholders along the way.

What Does “Diluting Shares” Mean For Your Company?

Share dilution happens when your company issues new shares, which increases the total number of shares on issue. As the pie gets bigger, each existing slice becomes a smaller percentage of the whole - even if the absolute number of shares an existing shareholder holds doesn’t change.

In other words, dilution is about percentages. If you own 50 of 100 total shares (50%) and the company issues 100 new shares to an investor, there are now 200 shares on issue and you own 25% (50/200) unless you buy more to maintain your stake.

For small business owners, dilution is not inherently “good” or “bad”. It’s a trade-off. You’re swapping a larger slice of a smaller pie for a smaller slice of what you expect will be a bigger pie over time.

When And Why Would You Consider Diluting Shares?

There are several common reasons small companies issue new equity:

• Raising capital to fund growth, inventory, hiring or product development.
• Bringing on a strategic investor or partner who adds expertise or distribution.
• Offering equity to key employees or advisors as part of a long-term incentive plan.
• Restructuring your cap table (for example, converting notes or reorganising classes of shares).

The key is to connect dilution to a clear business outcome - more cash runway, stronger team, faster growth - and to model what the cap table looks like after the round so everyone understands the impact.

How Does Dilution Affect Ownership, Control And Value?

Dilution touches a few areas you’ll want to plan for up front.

Ownership Percentages

Issuing new shares reduces existing shareholders’ percentage ownership unless they participate in the new issue. This matters for economic rights (dividends and exit proceeds) and for “who owns what” optics inside and outside the company.

Voting Control

Voting power usually moves with percentage ownership. A founder who goes from 60% to 40% may lose the ability to pass ordinary resolutions alone, and might need support to pass special resolutions. Understanding how “control” is defined in Australian law helps you plan board composition and shareholder approvals - see this overview of control under the Corporations Act.

Valuation And Price Per Share

When you issue shares, you’re putting an implied value on the company. A clear valuation framework helps you justify the price per share, negotiate fairly, and reduce disputes. If you’re unsure where to start, read this guide to valuing shares in a private company.

Pre‑Emptive Rights (Anti‑Dilution Participation)

Many companies give existing shareholders a contractual right to buy their pro‑rata share of any new issue to maintain their percentage. Check your Shareholders Agreement and Company Constitution for any pre‑emptive rights, exceptions (e.g. employee option pools), and notice procedures. Following those steps is critical to keep the raise valid and avoid disputes.

What Are Your Legal Options To Issue New Equity?

You have several ways to structure an equity raise or equity-based incentives. The right choice depends on your company’s stage, investor expectations, cash needs and risk appetite.

Ordinary Shares

Ordinary shares are the default with standard voting and dividend rights. They’re common for early friends-and-family or angel rounds because they’re simple and quick to issue. Just be sure your Shareholders Agreement and Constitution match what you’ve agreed with investors.

Preference Shares

Preference shares carry special rights (for example, priority on dividends or liquidation preferences). They’re popular in venture-style rounds to balance investor downside protection with founder control. Before offering them, understand how terms like “liquidation preference” and “conversion” impact outcomes - see this primer on preference shares.

Employee Equity (Options Or Performance Rights)

To attract and retain talent, you might establish an option plan or create a small employee equity pool. Equity plans dilute existing holders, so factor them into your cap table modelling and ensure the plan terms align with your Constitution and any investor rights.

Share Classes And Rights

You can create different classes of shares with different voting, dividend and conversion rights if your Constitution allows it. This can help you bring in investors without giving up outsized control. If you’re exploring this route, start by understanding different classes of shares and which rights suit your goals.

Share Subscription Agreement (The Deal Paperwork)

When investors subscribe for new shares, the terms are documented in a Share Subscription Agreement. It sets out the price, number of shares, warranties, conditions precedent and completion mechanics. It also ties into your Constitution and Shareholders Agreement, which may be amended at the same time to reflect the new deal.

How To Dilute Shares The Right Way (Step‑By‑Step)

Here’s a practical, legally sound path most Australian small companies can follow. Your exact steps may vary, but this sequence helps you avoid the common pitfalls.

1) Map Your Objectives And Cap Table

Clarify how much you need to raise, what it’s for, and the maximum dilution you’re comfortable with. Update your cap table to show current holdings, any option pool, and a few post‑raise scenarios so you can compare trade‑offs before negotiating with investors.

2) Check Your Constitution And Shareholders Agreement

Confirm who can issue shares, how approvals work, and any pre‑emptive rights. Your Company Constitution usually sets the mechanics for issuing shares, creating new classes, and board powers. Your Shareholders Agreement likely includes pre‑emptive rights, consent thresholds, information rights and drag/tag-along provisions that influence the raise.

3) Choose The Right Instrument

Decide between ordinary shares, preference shares, or an employee equity tool. If investors want specific protections, you may need to create a new class of shares. Keep it as simple as possible while meeting investor needs - complexity adds cost and friction.

4) Set A Valuation And Price Per Share

Work out the pre‑money valuation and price per share that aligns with your growth plan and market reality. Document your approach and rationale. For guidance on approaches and pitfalls, see valuing shares in a private company.

5) Prepare The Legal Documents

• Board and shareholder resolutions authorising the issue.
• Share Subscription Agreement (and any term sheet).
• Updated or restated Constitution if you’re adding share classes or revising rights.
• Updated Shareholders Agreement or deed of accession for new investors (so they’re bound by the same rules).
• Offer documents (if any) and disclosure exemptions where required.

6) Follow The Approval And Notice Process

Give pre‑emptive offers to existing shareholders if your Shareholders Agreement requires it. Allow the stated response period, then proceed with allocations. Keep records of notices and acceptances to evidence compliance.

7) Complete The Issue And Update Registers

Collect subscription funds, issue shares, update your member register, and provide holding statements. If the issue triggers changes that need to be lodged with ASIC, make the required filings (for example, a share issue or change to share structure may involve ASIC Form 484 and related records). Ensure your cap table, minute book and statutory registers are all up to date.

8) Communicate Clearly

Share a short update with your team and shareholders explaining what changed and why. Clear communication builds trust, particularly if percentage holdings have shifted meaningfully.

How To Protect Existing Shareholders From Unwanted Dilution

Even if you support an equity raise, you’ll want guardrails to keep dilution fair and transparent. Consider the following tools.

Pre‑Emptive Rights

Pre‑emptive rights give existing shareholders first dibs on new issues to maintain their percentage. Make sure the thresholds, timelines and exceptions in your Shareholders Agreement are practical for how you plan to raise capital.

Anti‑Dilution Protections (Investor Preference Rounds)

If you’re offering preference shares, investors may request price‑based anti‑dilution protection that adjusts conversion terms if a later round happens at a lower price. Understand how this affects founder economics and negotiate a balanced approach.

Set Aside An Option Pool Upfront

If you expect to grant employee options, create a sensible pool before a major round. That way, investor dilution accounts for the full pool and you aren’t forced into an unplanned top‑up later that disproportionately dilutes founders.

Use Clear Share Classes And Voting Rules

Where appropriate, structure classes to separate economic rights from voting control. If your growth plan involves multiple classes, start with a clean, consistent set of rules for conversion, dividends and voting. This is where understanding share classes really pays off.

Dividends And Exit Waterfalls

If and when dividends are declared or there’s a sale, you’ll want clarity on who gets paid, in what order, and how amounts are calculated. Align your Constitution and investor terms with your intended dividend and exit framework - and be across your directors’ obligations when it comes to declaring dividends.

Commercial And Legal Pitfalls To Avoid

Equity raises move quickly. These are the missteps that cause avoidable headaches.

• Skipping pre‑emptive rights: If you don’t offer shares to existing holders as required, you risk disputes or unenforceable issues.
• Mismatched documents: Your Share Subscription Agreement, Constitution and Shareholders Agreement must align on rights and responsibilities.
• Unclear valuation logic: If the price per share feels arbitrary, negotiations drag and trust erodes.
• Over‑complex terms: Stacking too many special rights makes future rounds harder and legal costs higher.
• Late ASIC housekeeping: Keep your registers and ASIC lodgements current to avoid penalties and due diligence surprises later.
• Ignorance of “control” thresholds: Small shifts can change who can pass certain resolutions - review your voting thresholds and the concept of control before and after the round.

FAQ: Your Top Dilution Questions, Answered

Will My Percentage Always Go Down When We Raise?

Typically yes - unless you invest more in the round (using pre‑emptive rights) to maintain your percentage. Sometimes a founder’s percentage decreases but their economic outcome still improves if the company’s value grows.

Can We Create A New Class Of Shares For Investors?

Yes, if your Constitution allows it and shareholders approve. This is common in venture‑style rounds to give investors specific rights. Start by confirming your Constitution’s process and reading up on different share classes.

What Paperwork Do We Need?

At minimum, board/shareholder approvals, a Share Subscription Agreement, any deed of accession to your Shareholders Agreement, and any Constitution updates. Don’t forget to update registers and lodge any required ASIC forms such as Form 484.

What If We Change Our Minds After Issuing Shares?

Once shares are issued, unwinding can be complex. If you need to move shares between parties later, you’ll likely look at an off‑market share transfer and associated approvals and filings. It’s much easier to get the structure right before you issue.

Do We Have To Pay Dividends After Dilution?

No. Dividends are at the board’s discretion and subject to legal tests. Equity raises usually fund growth rather than immediate dividends, but ensure your dividend policy and investor expectations are aligned and consistent with company law.

Key Takeaways

• Diluting shares simply means issuing new shares so each existing holder owns a smaller percentage of a larger total - it’s a trade‑off that should tie to clear growth goals.
• Plan the commercial impact before you raise: model your post‑money cap table, understand control thresholds, and set a defensible valuation and price per share.
• Choose the right equity tool for your needs - ordinary shares, preference shares, or employee equity - and keep terms as simple as possible.
• Follow your Constitution and Shareholders Agreement carefully, especially on pre‑emptive rights, approvals and notice periods.
• Paper the raise properly with a Share Subscription Agreement, board/shareholder resolutions, and any Constitution or Shareholders Agreement updates.
• Keep your registers and ASIC filings up to date (including any required Form 484) to avoid penalties and due diligence hiccups.
• Protect fairness with pre‑emptive rights, a sensible option pool and clear share class rules so future raises don’t create unnecessary friction.

If you’d like a consultation on diluting shares and structuring your next raise, you can reach us at 1800 730 617 or team@sprintlaw.com.au for a free, no‑obligations chat.