Short answer: you do not need a full-time CFO before a Series A, but you almost certainly need CFO-level work done before you walk into the first partner meeting. Those are two different things, and confusing them is how founders either overspend on a premature hire or underprepare for the most scrutinised financial conversation their company has had.
This guide is for Sydney founders deciding whether, and how, to bring finance leadership in before raising. It ends with a clear recommendation.
Published: June 2026
The decision is shaped by the market. Australian startups raised around $5.4 billion across 390 deals in 2025, up 31% year on year and the third-largest year on record, but the picture beneath the headline matters more than the total. The deal count slipped below 2024 levels, the top 20 deals captured 58% of all capital, and the report describes a two-speed market: fast and competitive for a narrow band of strong companies, slow and deliberate for everyone else (Cut Through Venture and Folklore Ventures; SmartCompany coverage).
What that means for you: investors are writing cheques again, but with a higher bar for proof, longer timelines, and heavier diligence than the 2021 era. Median Series A rounds sat at $11.0M, seed-to-Series-A conversion runs at roughly 22%, and offshore investors have become embedded across the majority of deals, with local cheque depth narrowing sharply from Series A onwards. Offshore investors bring offshore diligence standards. A model that would have passed in 2021 will not survive that scrutiny now.
A Series A is not won on a pitch deck alone. Once you are in diligence, a few things get examined closely, and they are where unprepared founders lose momentum or terms.
This is CFO-level work. It is not bookkeeping, and it is not something most accountants are engaged to do. The question is who does it, and in what form.
"Build a model" is vague advice, so here is what a Series A diligence process expects to see in one, concretely:
Most founder-built models fail diligence on the last point: the historicals do not reconcile, or the model and the data room tell slightly different stories, and momentum dies while it gets fixed. Getting this right before you go to market is the difference between a tight process and a stalled one.
Three ways to get the work done, with very different cost and fit.
A full-time CFO is almost always premature before a Series A. The base alone runs $180K to $300K at a smaller company, closer to $250K to $350K-plus once you load super at 12%, leave, recruitment, and equity (Robert Walters CFO salary guide). Pre-A, you rarely have the complexity, the team, or the cash to justify it, and a strong full-time CFO is hard to attract to a company that has not raised. This hire usually makes sense post-A or later, when there is a finance function to lead and a board to manage.
An open-ended fractional or virtual CFO retainer at $3K to $8K per month gets you ongoing senior input, but with a catch familiar to anyone who has run one: no named deliverable and no end date, so ten months in you may have a recurring meeting and a folder of decks rather than the specific artefact the raise required.
A fixed-scope virtual CFO engagement is built for exactly this situation. The deliverable is the fundraise-ready model and the data-room preparation, scoped on day one, delivered by a defined date, for a fixed fee. You get the CFO-level output the raise needs without taking on a salary or an open-ended retainer.
That is the product we built. Most Australian virtual CFOs sell the monthly retainer. We sell a 90-day deliverable, because for a founder preparing to raise, the thing that matters is whether the model exists and holds up, and that is a project with a finish line, not a standing engagement.
Decision framework, plainly:
For the large majority of Sydney founders heading into a Series A, the right answer is not a full-time CFO and not an open-ended retainer. It is a fixed-scope engagement that delivers the model and the data room, after which you decide whether to keep CFO support on an ongoing basis. That decision is best made after the raise, not before it.
Can I just use my accountant for the fundraise model?
Usually not. Accountants are engaged for compliance and statutory accounts, looking backward. A fundraise model is forward-looking, driver-based, and built to survive investor scrutiny. Different skill, different brief.
When should I hire a full-time CFO instead?
When ongoing complexity, board management, and leading a finance team justify the cost, typically post-Series-A or later. Before that, the work is project-shaped, and a salary is hard to justify.
What does the 90-Day Number deliver for a fundraise?
One named deliverable on day 90, agreed up front: most commonly a fundraise-ready financial model, with the unit economics and runway analysis a Series A diligence process expects. Fixed scope at $9,950 plus GST, no retainer.
How long before the raise should I start?
Begin the model work at least three to six months before you intend to be in market. A model built under deadline pressure shows it, and diligence is unforgiving of inconsistency.
Is a virtual CFO different from a fractional CFO?
The roles overlap. The distinction we draw is structural: most engagements in this market are open-ended retainers, and ours is a fixed-scope project with a named deliverable and an end date. For a fundraise, the deliverable focus is the point.
What if the raise slips or does not happen?
You still own a defensible model of your own business, which is useful for runway management and decision-making regardless of whether you raise. The work does not expire with the round.
Sydney Virtual CFO is a Sydney-based virtual CFO service for founders running $3M to $15M businesses across SaaS, ecommerce, professional services, construction, and other low-volume, high-value industries. We deliver fixed-scope CFO engagements with a named deliverable on day 90: a 13-week cashflow forecast, a fundraise-ready financial model, a unit economics build, or a board reporting pack you can run on your own.
Our front-door product, the 90-Day Number, is fixed scope at $9,950 plus GST. We are one of the few project-based virtual CFOs in Australia, in a market built almost entirely on monthly retainers. No retainers without a deliverable. No 80-page reports. No theatre.
This content is general information only, written for Australian founders running businesses in the $3M to $15M revenue range. It does not constitute tax, financial product, investment, or legal advice and should not be relied on as such. The work referenced is led by a Chartered Accountant (CA ANZ), but Sydney Virtual CFO is not a licensed tax agent, not a licensed financial adviser, and not authorised to provide personal financial advice. Tax obligations, accounting treatments, fundraise terms, and statutory requirements depend on your individual circumstances. For advice specific to your business, contact the team directly or consult a registered tax agent, licensed financial adviser, or qualified lawyer. Information was current at the time of publication and may change without notice. We review and update guides periodically.
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