SAFE Notes in Australia: How They Work and Where They Differ from the US Version

If you’re raising a pre-seed or seed round for an Australian startup, someone has probably already mentioned SAFE notes. The Simple Agreement for Future Equity, originally developed by Y Combinator in 2013, has become the default instrument for early-stage fundraising globally. An investor writes a cheque. In return, they get the right to convert that investment into shares at a future priced equity round, typically at a discount or subject to a valuation cap.

The concept is elegant: defer the valuation negotiation to a time when the company has more traction and data, and get capital flowing quickly with minimal legal cost. In the US, the Y Combinator SAFE is so standardised that deals close on a two-page document with almost no negotiation.

Australia is a different story. The instrument has been widely adopted, but the legal framework, market conventions, and practical risks diverge from the US version in ways that founders and investors routinely underestimate.

What a SAFE Actually Is

A SAFE is not debt. It has no interest rate, no maturity date, and no repayment obligation. It’s not equity either — the investor doesn’t receive shares at the time of investment. Instead, a SAFE is a contractual right to receive shares in the future upon the occurrence of a triggering event, typically one of:

• Equity financing — a priced round where the company issues shares to new investors at a fixed price per share.
• Liquidity event — a sale, merger, or IPO.
• Dissolution — the company winds up, in which case the SAFE holder typically receives their investment amount back (to the extent there are assets available) in priority to ordinary shareholders.

The conversion terms are governed by two key economic variables: the valuation cap (the maximum valuation at which the SAFE converts) and the discount rate (the percentage discount the SAFE holder receives relative to the price paid by new investors in the priced round). Most SAFEs include one or both of these mechanisms.

Pre-Money vs Post-Money: The Shift That Matters

Y Combinator updated its standard SAFE in 2018, moving from a pre-money to a post-money structure. The Australian Investment Council (AIC) has similarly updated its widely used Australian template to reflect post-money mechanics. Understanding this distinction is critical.

Pre-money SAFEs calculate the investor’s ownership percentage based on the company’s capitalisation before the SAFE investment and any subsequent financing. If a company issues multiple SAFEs before a priced round, each subsequent SAFE dilutes all earlier SAFE holders. The result: SAFE investors can’t know their exact ownership percentage until conversion, because it depends on how many more SAFEs the company issues.

Post-money SAFEs fix the investor’s ownership percentage at the time of investment by calculating their conversion price based on the company’s capitalisation including all outstanding SAFEs and convertible instruments. An investor who puts $500,000 into a post-money SAFE with a $5 million valuation cap knows they own 10% — and that percentage is protected from dilution by future SAFE issuances (though it will be diluted by the new shares issued in the priced round itself).

Post-money SAFEs are now standard in both the US and Australian markets. They give investors greater certainty but can create more founder dilution, particularly when multiple SAFEs are stacked before a priced round. Founders who issue several post-money SAFEs without modelling the cumulative dilution sometimes discover at Series A that they’ve given away significantly more of the company than they intended.

Where Australian SAFEs Differ from the US Version

No Standardised Document

In the US, the Y Combinator SAFE is essentially non-negotiable. It’s a fixed-form document published on YC’s website, and the startup ecosystem treats it as a standard. Lawyers might quibble over the valuation cap or discount rate, but the legal terms themselves are rarely modified.

Australia doesn’t have that level of standardisation. The AIC publishes a template SAFE that serves as a common starting point, and it’s well-drafted. But in practice, SAFEs in Australia are frequently customised. Lawyers add provisions, investors negotiate bespoke terms, and founders receive different SAFEs from different investors in the same round. The result is that every SAFE needs to be read carefully — you can’t assume it matches any template you’ve seen before.

Regulatory Classification Under the Corporations Act

This is perhaps the most significant difference. In the US, SAFEs are generally treated as a form of security for the purposes of federal securities law, and startups rely on exemptions under Regulation D (typically Rule 506(b) or 506(c)) to issue them without a prospectus.

In Australia, the analysis is more nuanced. The Corporations Act 2001 (Cth) has its own fundraising regime under Chapter 6D, which requires disclosure (usually via a prospectus) whenever a company offers “securities” to investors — unless an exemption applies.

A SAFE that confers a right to be issued shares in the future is likely to constitute a “security” for the purposes of the Corporations Act. That means issuing a SAFE to an investor is an offer of securities that triggers the disclosure obligations in Chapter 6D, unless you can rely on one of the exemptions in section 708.

The most commonly used exemptions are:

• Small-scale offering (section 708(1)) — the company can raise up to $2 million from no more than 20 investors in any 12-month period without disclosure.
• Sophisticated investor (section 708(8)) — the investor has a certificate from a qualified accountant confirming they have net assets of at least $2.5 million or gross income of at least $250,000 in each of the last two financial years.
• Professional investor (section 708(11)) — the investor holds an AFSL, controls gross assets of at least $10 million, or meets other criteria.

If you’re raising from angel investors or seed funds, most will qualify under the sophisticated or professional investor exemptions. But if you’re raising from friends, family, or less experienced investors, you need to ensure you’re within the small-scale offering limits or have another applicable exemption. Getting this wrong is a contravention of the Corporations Act with potential civil and criminal consequences.

Tax Classification: Debt or Equity?

The tax treatment of SAFEs in Australia turns on their classification under Division 974 of the Income Tax Assessment Act 1997 (Cth), which establishes tests for determining whether a financial arrangement is a debt interest or an equity interest.

A standard SAFE — with no maturity date, no interest, no obligation to repay, and conversion into shares on a triggering event — will generally be classified as an equity interest under Division 974. The investor’s return depends entirely on the value of the shares they eventually receive, not on a fixed or determinable return.

This matters because:

• The company cannot claim a tax deduction for any amount paid to the SAFE holder (unlike interest on a convertible note, which may be deductible as a debt interest).
• The SAFE investment is not assessable income to the company — it’s a capital contribution.
• For investors, the tax treatment on conversion and eventual sale of shares will follow the CGT rules, with cost base equal to the amount invested under the SAFE.

However, if the SAFE is modified to include debt-like features — a maturity date, a repayment obligation, or an interest component — the Division 974 analysis becomes more complex. Some Australian SAFEs include maturity provisions that require the company to repay the investment if no conversion event occurs within a specified period (typically 18 months to three years). These provisions can shift the instrument towards a debt classification, changing the tax treatment for both parties.

The Venture Capital Act 2002 (Cth) and related provisions in the Income Tax Assessment Act 1997 confirm that a SAFE can qualify as an eligible venture capital investment for VCLPs and ESVCLPs — provided it is a “convertible note that is not a debt interest.” In other words, the instrument must convert to equity and must not have characteristics that make it a debt interest under Division 974.

Board and Shareholder Approval

Under the Corporations Act, a company’s power to issue shares is subject to the requirements of its constitution (if it has one) and the replaceable rules in the Act. Most startup constitutions authorise the directors to issue shares, but the specific terms of a SAFE — particularly provisions relating to valuation caps, discount rates, and the classes of shares to be issued on conversion — should be reviewed against the company’s constitution.

If the SAFE converts into a new class of shares (for example, preference shares with specific rights), the company may need to amend its constitution, which requires a special resolution of shareholders. This is a step that can catch founders off guard at conversion time if they haven’t planned for it.

Most Favoured Nation Clauses

US SAFEs sometimes include an MFN (Most Favoured Nation) clause, particularly where the SAFE has no valuation cap. The MFN gives the investor the right to adopt the terms of any subsequent SAFE issued on more favourable terms before the next priced round.

MFN clauses are less common in Australian SAFEs but are becoming more prevalent. If your SAFE includes an MFN provision, be aware that issuing a later SAFE with a lower valuation cap or higher discount will retroactively improve the terms for earlier SAFE holders — increasing your dilution.

Common Mistakes Founders Make

Stacking SAFEs Without Modelling Dilution

The speed and simplicity of SAFEs makes it tempting to issue them repeatedly. A $200,000 SAFE here, a $300,000 SAFE there — each one feels small and manageable. But post-money SAFEs in particular can compound dilution quickly. Before issuing any SAFE, model the conversion scenario: what does your cap table look like when these SAFEs convert at the next priced round?

Ignoring the Small-Scale Offering Cap

If you’re issuing SAFEs to investors who don’t qualify as sophisticated or professional investors, the $2 million / 20 investor limit applies. Count carefully — and remember that the limit aggregates all offers of securities (not just SAFEs) over a rolling 12-month period.

Using US Templates Without Localisation

The Y Combinator SAFE is drafted for Delaware corporations under US securities law. It doesn’t work for Australian proprietary companies. Key concepts don’t translate: “preferred stock” has a different meaning under Australian law, the conversion mechanics reference US-specific corporate structures, and the governing law provisions are wrong. Use a SAFE that’s been drafted or properly adapted for the Australian legal framework — the AIC template is a good starting point.

Not Getting Legal Advice on Conversion Mechanics

The conversion maths in a SAFE can be surprisingly complex, particularly when multiple SAFEs with different caps and discounts are converting simultaneously. The definition of “Company Capitalisation” or “Fully Diluted Capital” determines who bears the dilution, and getting it wrong can result in founders giving up significantly more equity than they expected. This is not a document to sign without legal advice.

SAFE vs Convertible Note: A Quick Comparison

Convertible notes remain an alternative to SAFEs, particularly for investors who want the security of a debt instrument. The key differences:

For very early-stage companies raising small amounts quickly, SAFEs are typically more efficient. For larger raises or situations where investors want downside protection, convertible notes may be more appropriate.

The Bottom Line

SAFEs have earned their place in the Australian startup ecosystem. They’re faster, cheaper, and simpler than priced rounds for early-stage fundraising. But “simple” is relative — the Australian version involves regulatory considerations, tax implications, and structural nuances that don’t exist in the US context.

The founders who use SAFEs well are the ones who understand what they’re signing: they model the dilution, comply with the fundraising exemptions, use properly localised documents, and get legal advice on the terms that matter. The ones who treat a SAFE as a formality tend to discover the complications at the worst possible time — when they’re trying to close a priced round and the cap table doesn’t add up.

If you’re planning to raise using SAFEs and want to make sure the documents and process are right, get in touch. We help Australian startups structure their early-stage fundraising so it doesn’t create problems down the track.