The usual version of this question is about size. At what turnover, how many staff, which funding round. It is the wrong question, and it produces answers that are either too early or badly too late. The better question is whether the decisions the business now makes have outgrown the information available to make them.
Why turnover thresholds do not work
Businesses of the same size can have completely different finance needs. A consultancy with a handful of large clients, predictable costs and no stock can run comfortably on modest financial infrastructure for a long time. A manufacturer of the same turnover, with inventory, capital equipment, variable input prices and a hundred customers, is a substantially harder financial problem.
What actually creates the need for a CFO or senior finance support is complexity and consequence: how many moving parts there are, and how expensive it is to get a decision wrong. A rule of thumb based on revenue or headcount misses both.
The signs that usually matter
In practice the need announces itself in fairly recognisable ways.
The numbers arrive too late to act on. Management information for one month lands halfway through the next, or later. It is accurate, and by the time it appears the period it describes is closed and the decisions it might have informed have already been taken.
Cash keeps surprising you. The pattern persists beyond a genuinely unusual month. The business is trading well and the balance still moves in ways nobody predicted. The bank account is being watched, but nobody owns the forward view.
Decisions are being made on recollection. Pricing, hiring and investment get decided on a strong sense of how things are going. That instinct is usually well founded; an owner who has run the business for years knows it intimately. As the business becomes more complicated, however, the detail can start to tell a different story. What one person could hold in their head at fifteen customers does not survive at a hundred.
The forecast carries little weight. There is a forecast, and nobody quite trusts it, including the person who built it. Reality moves away from it without prompting a revision. It exists because the bank asked for one.
Something material is coming. A funding conversation, a lease commitment, an acquisition, a large contract, taking on premises. These decisions need more than a rough answer, especially when someone outside the business will examine the numbers.
Nobody owns the forward view. This is the most common and the least visible. The bookkeeping is done. The accountant files everything on time. The reporting is produced. And there is no one whose job is to work out what all of it means for the next twelve months and take a view.
You are doing it yourself. The owner-manager is the de facto finance director: building the models at the weekend, chasing the debtors and deciding what the numbers mean. It works, up to a point. Past that point it consumes the attention that ought to be going into the things only the owner can do.
One of these on its own is normal. Several appearing together and persisting over time are the signal.
A six-company group had bookkeepers and accountants in every business, each doing their own work properly. The detail across the group had no owner. Operating measures differed from company to company, and received opinion went untested against the facts. Once profitability and cash were analysed on the same basis everywhere, the acquisition opportunities in front of the group could be assessed on evidence. Several acquisition opportunities were dropped because the analysis did not support them. Complexity and consequence were the signal here.
Why "hire a CFO" is usually the wrong first move
Having recognised the need, the natural response is to fill the role. For most businesses at this stage that is premature, and occasionally it is actively harmful.
A senior finance appointment brings a substantial fixed commitment: the salary, the organisational weight of a permanent senior role, the recruitment process, and the difficulty of unwinding it if the shape of the need turns out to be different from what you assumed. It also assumes you already know what you need, which is precisely the thing that tends to be unclear at the point the question first arises.
Worse, it can solve the wrong problem. If reporting takes five weeks to produce, a full-time CFO can spend a disproportionate amount of their first year fixing it. That work genuinely needs doing. It is not what the role is for, and a permanent salary is an expensive way to get it done. Seniority on top of a weak foundation produces an expensive person with the same poor information.
The distinction worth holding on to is that fixing the foundation is CFO-level work, but it is finite. It does not need a permanent appointment.
What it looks like when it works
It is easy to describe the problem and leave the improvement vague, so it is worth being specific about the other side of this.
Management information for the month lands in the first week of the next one, and it gets used. Cash is forecast twelve weeks out, and the forecast is close enough to plan against. Pricing and hiring decisions are tested before they are made rather than reviewed afterwards. When a large contract or an acquisition appears, the financial case can be assessed in days, rather than being assembled from scratch under time pressure. When someone outside the business examines the numbers, they hold up.
None of that requires a large in-house finance department. Most of it comes down to ownership: someone whose job is the forward view, and a reporting process that arrives in time to be useful.
The range of sensible answers
There is a good deal of ground between the current arrangement and an employed CFO, and most businesses find their answer somewhere in the middle.
Your existing arrangement may be sufficient. If the business is stable, the reporting is timely and the decisions in front of you are ones you have made before, a competent accountant and a good bookkeeper may be exactly right. Adding senior finance capability to a business that does not need it is cost without return.
A one-off review may be enough to settle the question. Where several things feel wrong at once and it is genuinely unclear which matters most, a bounded piece of work is usually a better first step than a hiring decision: it establishes where the gap is, and what closing it would be worth. Sometimes it produces two or three specific fixes and no ongoing requirement, which is a legitimate and useful outcome.
Fractional CFO support fits the common case. Where the business needs CFO-level judgement at decision points but could not justify a permanent appointment, senior input on a defined and flexible basis covers the need without the cost of employing someone in-house.
Much of the early work is structural: establishing the reporting rhythm, the controls and the forecast discipline that a finance manager or controller can then run day to day, and building them for the next phase of growth rather than the current one. Once that is in place, a properly structured finance function is often sufficient for several years, and what the business needs from a CFO is judgement at the decision points rather than day-to-day leadership. Scope can follow the decisions in front of you.
A full-time CFO becomes right eventually. The argument for employing someone becomes straightforward once the finance function needs day-to-day leadership, financial decisions arise continuously and the economics comfortably support the role. Reaching that point is a good sign. Arriving at it before the business is ready is not.
A practical test
Think about the decisions coming in the next six months. Which one would you be unwilling to make with the information you currently have?
If nothing comes to mind, you probably do not need to change anything yet. If something does and you cannot say confidently what the numbers would tell you about it, that is the gap. It is worth being specific about its shape before deciding how to fill it, because the shape determines whether the answer is better reporting, a piece of focused work, ongoing senior input, or in time an appointment.
If you are trying to work out which of those is right, Fractional CFO support explains what ongoing senior input covers, and The Pelican Finance Health Check is the usual way to establish that shape first. Back to Insights.