Three different problems wearing one label
Most founders arriving at this search have one of three things going on. A demand problem: the product works but not enough people are buying, which is a marketing and sales question. An operating problem: the business is busy and disorganised, which is a process and people question. Or a visibility problem: you cannot see far enough ahead to make decisions with confidence, which is a finance question.
The third one is the most common and the most often misdiagnosed. It presents as strategy uncertainty and it is actually that nobody owns the numbers. The founder brief I hear most is exactly this: a founder of a pre-revenue, niche-industry startup came to me seeking a fractional CFO to improve financial visibility and align their financial model with the direction of the business.[1] Visibility and alignment. Not advice.
| What it feels like | What it usually is | |
|---|---|---|
| Not enough is being sold | A growth strategy problem, requiring positioning and go-to-market advice. | Often genuinely a demand problem. This is the one case where a marketing or sales specialist is the right call. |
| Everything is busy and nothing is finished | A leadership or coaching problem, needing an outside voice. | Usually process and prioritisation, which improves fastest when someone can show what each activity actually costs. |
| You cannot decide with confidence | Strategic uncertainty, so bring in a strategist for a plan. | A visibility problem. Nobody owns the numbers, so no plan is trustworthy until someone does. |
What financial judgement actually changes
The reason this distinction matters commercially: advice produces a plan, financial ownership produces different decisions. When someone properly owns finance in a startup, reporting gets clearer, forecasts become more believable, board prep gets less chaotic, cash conversations get more accurate, and hiring plans get properly tested before they become commitments.[2] That last one is the growth lever most founders are actually looking for.
The timeline is short too. By day 90, the impact of a first finance hire is founders making better decisions, not through dramatic change but by having someone who can interpret the numbers, advise on things like adjusting headcount or applying diligence on spending, and identify inconsistencies in the growth story.[3] Finding the inconsistency in the growth story is the single highest-value thing an outside financial mind does, and no coaching engagement will do it.
Who to bring in, by stage
At seed and pre-seed, the honest answer is usually nobody senior yet. A financially savvy founder who is comfortable with AI can often get away with less reliance on a fractional CFO at seed stage by engaging a fractional bookkeeper and using tooling for basic runway tracking, actual versus forecast and lightweight commercial analysis.[4] That combination costs a fraction of an advisory retainer and solves the visibility problem directly.
As complexity arrives, a fractional CFO is the right shape. It is typically relevant to a startup for a finite period, usually 18 to 24 months.[5] Timing depends on the business model more than revenue: a single-product SaaS business might not need a first finance hire until Series B and can rely on a fractional for a long time, while complex deep tech businesses like robotics need a finance professional sooner.[6]
Then it ends. For businesses reaching $20M-plus ARR, a full-time CFO becomes effectively mandatory, because fractional arrangements typically break down at that stage.[7] A good adviser tells you when their model has run out rather than defending the retainer, and a founder needing a fractional today might need a full-time hire in 18 months and will remember who was straight with them.[8]
If a fractional or virtual CFO is where this is heading, the models and what they cost are compared here.
How to choose without getting burned
Be aware that this market has got crowded fast. Every second executive finance professional I speak to is considering moving towards the fractional or virtual CFO space, which means the market is getting harder for businesses to know who to trust with something this important.[9] The same is true across the wider advisory category, where the barrier to entry is a website.
Two filters work. First, niche. The criterion I use for my own referral list of good fractional and virtual CFO advisers is their absolute niche: the specific market, industry or growth stage where they do their best work and give the most value.[10] Ask that question directly, and treat a broad answer as a decline. Second, ask what decision they expect to change in the first 90 days. Anyone who answers with deliverables rather than decisions is selling documents.
For clarity on my own position: I do not sell advisory. I run permanent retained search for Australian VC-backed startups and scale-ups, on two hiring moments, the first finance hire at roughly 10 to 20 headcount and the first CFO at 50-plus heads and $10M-plus ARR.[11] I refer founders to good fractional CFOs regularly with no fee attached when that is genuinely the right answer.[12] If you are unsure whether you need an adviser or a hire, that is a fast conversation and it costs nothing.
Common questions
Do I need a business growth advisor or a fractional CFO?
Work out which problem you have first. If not enough is being sold, that is a demand problem and a marketing or sales specialist is the right call. If you cannot make decisions with confidence, that is a visibility problem: nobody owns the numbers, and no strategy is trustworthy until someone does. The brief I hear most often from founders is exactly the latter, wanting financial visibility and a model that aligns with where the business is actually going.
What changes when someone properly owns the finance side?
Reporting gets clearer, forecasts become more believable, board prep gets less chaotic, cash conversations get more accurate, and hiring plans get properly tested before they become commitments. The timeline is faster than most founders expect: by day 90 the impact is better decisions, through someone who interprets the numbers, advises on headcount and spending diligence, and identifies inconsistencies in the growth story. Finding that inconsistency is the highest-value thing an outside financial mind does.
When is it too early to bring anyone in?
At seed and pre-seed, usually. A financially savvy founder comfortable with AI can often avoid a fractional CFO at that stage by engaging a fractional bookkeeper and using tooling for runway tracking, actual versus forecast and lightweight commercial analysis. That combination solves the visibility problem directly at a fraction of an advisory retainer. Complexity is the real trigger: single-product SaaS can wait until Series B, complex deep tech such as robotics cannot.
How do I avoid choosing badly in a crowded market?
Two filters. Ask about niche: the specific market, industry or growth stage where they do their best work. That is the criterion I use for my own referral list, and a broad answer should be treated as a decline. Then ask what decision they expect to change in the first 90 days. Anyone answering with deliverables rather than decisions is selling documents. The market has become crowded, with every second executive finance professional considering a move into it, so a website is no longer a signal.
References
- Tom Hunter: assisted a founder of a pre-revenue, niche industry startup who sought a fractional CFO to improve financial visibility and align their financial model with the business's direction.
- Tom Hunter: with strong finance ownership, reporting gets clearer, forecasts more believable, board prep less chaotic, cash conversations more accurate, and hiring plans properly tested before they become commitments.
- Tom Hunter on first finance hires: by day 90 the impact is founders making better decisions, through someone interpreting the numbers, advising on headcount and spending diligence, and identifying inconsistencies in the growth story.
- Tom Hunter on seed-stage finance: a financially savvy, AI-comfortable founder can rely less on a fractional CFO by engaging a fractional bookkeeper and using tooling for runway tracking, actual versus forecast and lightweight commercial analysis.
- Story Recruitment guidance: a fractional CFO is typically relevant to a startup for a finite period, usually 18 to 24 months.
- Tom Hunter: a single-product SaaS business might not need a first finance hire until Series B, relying on a fractional CFO for a long time, while complex deep tech businesses like robotics need a finance professional sooner.
- Story Recruitment guidance: at $20M+ ARR a full-time CFO becomes effectively mandatory, as fractional arrangements typically break down at that stage.
- Tom Hunter: a founder needing a fractional CFO today might require a full-time hire in 18 months, and will remember the conversation when the timing is right.
- Tom Hunter: every second executive finance professional he speaks to is considering the fractional or virtual CFO space, making the market crowded and harder for businesses to know who to trust.
- Tom Hunter on his referral document of fractional and virtual CFO advisers: the key criterion is an absolute niche, detailing the specific market, industry or growth stage where they do their best work.
- Story Recruitment focus: the first finance hire in a startup (10 to 20 headcount) and the first CFO hire (50+ heads, $10M+ ARR).
- Tom Hunter: refers early-stage founders to good fractional CFOs, including an introduction made within 4 hours with no fee attached.