When should a founder hire their first CFO?
In our experience, many founder-led businesses hire their first proper CFO between £30m and £60m turnover, triggered by one of three specific events:
- A fundraise on the near horizon where investors want an institutional finance voice in the room.
- An exit process being planned where the finance function needs building to buyer-diligence standard.
- The founder having personally held finance for too long and needing to hand it off to focus on the business.
In our experience, businesses under £25m are often better served by a Head of FP and A or Group Financial Controller as the first senior finance hire, with the CFO seat opened 12 to 18 months later once the function has been properly built. Matching the first hire to the work the business needs now is what makes it last.
Deeper: When to hire a Group FC before a CFO.
The three CFO profiles who do not fit a founder-led business
Some CFO profiles that are strong hires in institutional businesses are consistently wrong hires in founder-led ones. Not because the CFOs are weak. Because the fit is wrong.
The process-heavy CFO from a large corporate. Tries to import a governance operating model that slows the business without adding the value the process is designed to add. The founder starts making decisions in rooms the CFO is not in.
The deal-heavy CFO from a PE portfolio. If the business is three to five years pre-any-exit-conversation, this CFO has nothing to do and leaves within 18 months for the next deal-heavy seat.
The technically brilliant CFO with poor relational instincts. Founder-led CFO seats are relational seats before they are technical. Some very strong technical CFOs simply lack the register for it.
Full framing: Three CFO types who do not belong in a founder-led business.
Why founder-only interviews miss the wrong signals
Founders instinctively want to be the primary (or only) CFO interviewer because they need to know if they can work with the person. The intent is understandable. The design is a hiring failure waiting to happen.
Founders systematically miss three specific signals in a CFO interview:
- Governance instinct. The CFO who never disagrees with the founder in the interview will not disagree in the boardroom either.
- Second-tier readiness. Whether the CFO can name the finance team they will build below them in specifics.
- Handling of ambiguity. Founder-led businesses run on more ambiguity than institutional ones; some CFOs cannot function without institutional structure.
And pick up two signals that mislead: immediate chemistry, and personal similarity to themselves. In our experience, both deserve far less weight than founder-only interviews tend to give them.
Full framing: Why founder-only CFO interviews miss the wrong signals.
What a good interview design looks like
Two interviewers, not one. Structured differently:
- The founder handles the personality and business-alignment interview. Chemistry read is genuinely useful; it just should not be the whole signal.
- An external or board-adjacent interviewer (a chair, an NED, or the search firm) handles the governance, second-tier, and ambiguity questions.
The two views are then compared honestly. If they agree, the decision is easy. If they diverge, the divergence is the most valuable information in the whole process.
What the wrong first CFO hire actually costs
In our experience, the cost of a first CFO hire that does not work out goes well beyond the fee: severance, interim cover, turnover in the team below and delayed board decisions. That is the case for a thorough search.
Full breakdown: What the first bad CFO hire actually costs.
Talk to Harper May about your first CFO seat
We have run first CFO searches for founder-led businesses across SaaS, fintech, consumer, industrial, healthcare, and services. If you are approaching this decision and want to think through the specific shape of the role before opening a search, get in touch.
