Raising external capital can give a growing business the funding it needs to hire, develop products, build systems or enter new markets. But for founders, the key question is rarely just “How much can we raise?” It is also “How much of the company will we still own and control afterwards?”

That is where pre-money and post-money valuation matter. Understanding the difference helps founders model dilution properly, negotiate from a clearer position and avoid agreeing to terms that look attractive on the headline valuation but cost more equity than expected.

Pre-money and post-money valuation explained

A pre-money valuation is the agreed value of a company immediately before new investment is added.

A post-money valuation is the value of the company immediately after the investment is made.

In a straightforward primary share issue, the relationship is:

  • Post-money valuation = pre-money valuation + new investment

  • Investor ownership percentage = investment amount ÷ post-money valuation

  • Existing shareholders’ combined ownership after the round = pre-money valuation ÷ post-money valuation

For example, if a company agrees on a pre-money valuation of $3.2 million and raises $800,000 in new capital:

  • The post-money valuation is $4 million.

  • The investor receives 20% of the company, assuming the investment is made for newly issued shares and there are no other changes to the capital structure.

  • Existing shareholders collectively retain 80%.

The distinction may seem simple, but it is easy for conversations to become confusing. An investor may say they are willing to invest at a “$4 million valuation”. Before treating that as an offer, the founders need to confirm whether $4 million is pre-money or post-money.

That one clarification can materially change the equity being issued. If $4 million is pre-money and the investor contributes $800,000, the investor’s ownership would be approximately 16.7%. If $4 million is post-money, the same investment would represent 20%.

Neither outcome is automatically right or wrong. The important point is that founders should model the ownership result before accepting a valuation headline.

Dilution is more than the investor’s percentage

Dilution occurs when a company issues new shares and existing shareholders end up owning a smaller percentage of the company. It does not necessarily mean that their holding has become less valuable in dollar terms. If the capital helps the business grow, a smaller percentage of a larger and stronger company may be commercially worthwhile.

However, ownership percentage still matters. It affects voting power, future distributions, founder influence and the share of proceeds founders may receive if the business is sold.

A capital raise should therefore be considered in the context of the company’s full share structure, not just the immediate round.

Founders should map out:

  • Each founder’s current shareholding.

  • Existing investors and their rights.

  • Any employee share scheme or option pool.

  • Convertible notes or other convertible instruments.

  • Warrants, rights or commitments to issue shares.

  • Proposed new shares for investors.

  • Likely future funding rounds.

An employee option pool is a particularly important issue. Investors may ask the company to create or increase an option pool so that key employees can be rewarded without needing to renegotiate equity at every hire.

The commercial question is whether that pool is created before or after the new investment. If it is included in the pre-money valuation, the dilution from the pool is usually borne primarily by existing shareholders. If it is created after the investment, the dilution may be shared more broadly.

Consider a company where the founders initially own all shares. They agree to issue enough shares to an investor for 20% ownership after the raise. The investor also requires that 10% of the company be reserved for future employee incentives as part of the transaction.

If that 10% pool is factored into the capital structure before the investor’s shares are issued, the founders can end up with 70%, the investor with 20% and the employee pool with 10%. The investor still receives the agreed 20%, but the founders have absorbed the option pool dilution.

This is why founders should ask for a fully diluted cap table, not just a statement of the investor’s percentage. A fully diluted cap table assumes that relevant options, rights and convertible instruments are included when calculating ownership.

Build a valuation around evidence, milestones and capital needs

Early-stage businesses often do not have a long trading history or predictable profits. That does not mean valuation is arbitrary. It means founders need to present a credible and well-supported case for why the business is worth the amount proposed.

Investors commonly assess a combination of factors, including:

  • Revenue and revenue growth, where the business is already trading.

  • Gross margin and the pathway to sustainable profitability.

  • Customer retention, contract value and sales pipeline.

  • Market size and competitive position.

  • Intellectual property, technology, systems or specialised know-how.

  • The strength and experience of the founding team.

  • The business model’s ability to scale.

  • Comparable transactions or businesses, where genuinely relevant.

  • The amount of capital required to reach the next meaningful milestone.

Founders should be careful about relying too heavily on a valuation based on a broad industry multiple. A multiple can be a useful cross-check, but it is rarely a complete answer. A business with recurring revenue, low customer churn and clear unit economics may warrant a different assessment from a business with similar turnover but highly uncertain customer retention or heavy cash requirements.

A practical approach is to work backwards from the next milestone. Ask what the business needs to achieve before the next capital raise, major commercial contract, expansion or potential exit.

That might include:

  • Completing a product release.

  • Obtaining regulatory approvals.

  • Reaching a defined level of recurring revenue.

  • Building a sales team.

  • Proving customer demand in a new market.

  • Improving gross margins.

  • Establishing more reliable management reporting.

The amount being raised should be connected to a realistic operating plan. Investors will generally want to understand how the funds will be used and how long they are expected to last.

A strong funding plan usually distinguishes between:

  • Product development or technology costs.

  • Staff and contractor costs.

  • Sales and marketing expenditure.

  • Working capital needs.

  • Professional, legal and compliance costs.

  • Contingency funding.

Raising too little can create pressure to return to market before the business has reached a stronger negotiating position. Raising far more than the business can deploy sensibly may also result in unnecessary dilution.

The goal is not simply to achieve the highest possible valuation. It is to raise an amount that gives the business a realistic opportunity to create the next step-up in value without surrendering more equity than necessary.

A higher valuation is not always the better deal

Founders naturally focus on valuation because it is easy to compare. But the share price is only one part of a funding round. The rights attached to the shares can have an equally significant effect on founder outcomes.

An investor may accept a higher valuation while seeking stronger commercial protections. Depending on the terms, those protections can affect control, future fundraising flexibility and how sale proceeds are divided.

Common areas to review include:

  • Share class and economic rights: Investors may receive a different class of shares from founders. The rights attached to each class should be clear in the company constitution, shareholder agreement and investment documents.

  • Liquidation preferences: These provisions can affect how proceeds are shared if the company is sold, wound up or has another exit event. Founders should understand whether an investor receives priority over ordinary shareholders and how that priority operates.

  • Anti-dilution rights: These can adjust an investor’s position if later shares are issued at a lower price. The effect can be substantial in a down round.

  • Board rights: An investor may seek the right to appoint a director, attend board meetings as an observer or approve certain decisions.

  • Reserved matters or veto rights: These can require investor consent for specified actions, such as issuing further shares, borrowing money, changing the business direction or approving major transactions.

  • Pre-emptive rights: Existing investors may seek the right to participate in later share issues to maintain their ownership percentage.

  • Founder vesting arrangements: Investors may want founder equity to vest over time or be subject to buy-back provisions if a founder leaves the business.

  • Drag-along and tag-along provisions: These can affect what happens if shareholders sell the business or transfer their shares.

  • Information rights: Investors may require regular financial reports, budgets, cash flow forecasts and business updates.

None of these terms are inherently unreasonable. Investors are taking risk and may properly seek protections. The issue is whether the package is balanced and whether the founders understand the practical consequences.

A lower valuation with simpler rights can sometimes be preferable to a higher valuation with terms that significantly reduce founder flexibility or economic upside. The correct comparison is the full deal, not just the post-money number.

Use the right capital structure for the stage of the business

A priced equity round is not the only way to raise capital. In some circumstances, a company may consider a convertible note or another instrument that converts into shares later.

These arrangements can be useful where the company and investors agree on the need for funding but are not yet ready to settle a valuation. However, they do not remove the dilution question. They postpone it.

Before using a convertible instrument, founders should understand:

  • What event triggers conversion.

  • Whether conversion is based on a discount to a later funding round.

  • Whether there is a valuation cap.

  • Whether interest accrues and how it is treated on conversion.

  • Whether the instrument has repayment rights if a future funding round does not occur.

  • What happens on a sale, insolvency or other exit event.

  • How several convertible instruments would interact.

A valuation cap can be particularly important. It may protect early investors if the company’s value rises before the next round, but it can also mean more shares are issued than founders expect.

Founders should prepare an ownership model that includes several plausible future scenarios. For example:

  • A later round at a higher valuation.

  • A later round at a lower valuation.

  • Conversion before a new equity round.

  • Multiple investors converting at the same time.

  • A future option pool increase.

  • Existing investors exercising participation rights.

Seeing these outcomes in a cap table before signing documents is far easier than trying to resolve surprises after the fact.

Australian compliance, tax and record-keeping considerations

An equity raise is not only a commercial negotiation. It also involves company law, fundraising rules, tax considerations and administrative obligations.

Many Australian start-ups operate through proprietary companies. A proprietary company has restrictions on offering shares to the public, and fundraising requirements can depend on how securities are offered, who receives the offer and the size and structure of the fundraising activity.

Founders should not assume that an informal approach to prospective investors is automatically compliant simply because the business is privately held. The way the offer is communicated, the investor audience and the number of people approached can all matter.

Once shares are issued, the company needs to keep its share register accurate and notify ASIC of the share issue within the required timeframe. The company should also ensure that its records reflect:

  • The number and class of shares issued.

  • The issue price and amount paid or payable.

  • Shareholder details.

  • The rights attached to each share class.

  • Board and shareholder approvals.

  • Signed investment and subscription documents.

  • Updated cap table information.

The company constitution and any shareholder agreement should be reviewed before a raise. Existing documents may contain pre-emptive rights, transfer restrictions, approval requirements or other provisions that affect the ability to issue new shares.

Tax should also be considered early, particularly where:

  • A founder is selling existing shares rather than the company issuing new shares.

  • Shares are being issued to employees, contractors or advisers.

  • The company intends to establish or expand an employee share scheme.

  • Investors are asking about early-stage investor tax incentives.

  • The company holds significant assets or operates through a group structure.

  • The proposed transaction includes debt, convertible instruments or non-cash consideration.

Employee equity deserves particular care. Australian employee share scheme rules can produce different tax outcomes depending on the arrangement, the recipient and the company’s circumstances. Where a start-up concession may be relevant, market value remains an important issue and should be supported appropriately.

A professional valuation is not always required for every early-stage raise. But founders should maintain records that explain how the price was determined. This may include financial forecasts, board papers, investor negotiations, comparable evidence and a clear cap table.

A practical process for raising capital without over-diluting

Before presenting an offer to investors, founders should have a clear internal process.

A useful sequence is:

  1. Set the funding objective. Identify what the capital is for, how much is required and what milestone it is expected to achieve.

  2. Prepare reliable financial information. Investors will usually expect current management accounts, cash flow forecasts and a realistic budget.

  3. Build a detailed cap table. Include current holdings, proposed shares, employee equity, convertibles and different funding scenarios.

  4. Decide the minimum acceptable founder position. Consider not only the current round but likely future dilution.

  5. Develop a valuation rationale. Be prepared to explain the assumptions, growth plan and evidence supporting the proposed valuation.

  6. Negotiate the full term sheet. Review investor rights, governance terms, conversion mechanics and exit provisions alongside the valuation.

  7. Obtain legal and accounting advice before signing. It is much easier to structure a raise well at the outset than to unwind unintended consequences later.

  8. Complete post-raise administration. Update the share register, ASIC records, accounting records, cap table and internal reporting processes.

The right funding round should give the business enough capital to move forward while preserving a workable ownership structure for founders, employees and future investors.

The key takeaway for founders

Pre-money and post-money valuation are not just finance terms. They are practical tools for understanding what a capital raise will mean for your ownership, control and long-term upside.

Before agreeing to an investment, make sure the valuation basis is clear, the cap table is fully modelled and the legal rights attached to the investment are understood. A strong headline valuation is useful, but it should never distract from the equity being issued and the terms that sit behind it.

This article is general information only and is not personal financial or tax advice. Capital raising, share issues and employee equity arrangements can have significant legal, accounting and tax implications. Speak with a registered tax agent or accountant, such as, and appropriate legal advisers about your specific circumstances before proceeding.