The Role of a Finance Director: Do I Need to Hire One for My Growing Company?

It is one of the more expensive questions a growing business asks, and one where the wrong answer costs in both directions. Appoint a Finance Director too early and you have a well-paid executive doing work a Financial Controller could handle, who leaves within a year for a role that stretches them. Leave it too late and the founder or MD carries strategic finance personally through exactly the period — a funding round, an acquisition, a bad quarter — when getting it wrong is most costly. This guide sets out the signals that genuinely indicate a Finance Director is needed, what the role adds that other seats do not, what it costs in 2026, and the alternatives worth weighing before committing to a full-time appointment.

What a Finance Director actually adds

The distinguishing contribution is not producing better numbers — a good Financial Controller does that — but converting numbers into decisions and representing finance where decisions are made. In practice that means four things. Strategic input at board level: testing the commercial plan against financial reality, and having the standing to say when it does not hold. Capital and funding: owning the relationship with lenders and investors, structuring facilities, and leading the finance workstream of any raise or transaction. Risk and governance: the controls, the reporting to shareholders, and where the FD is a statutory director, the duties that come with a board seat. Building the finance function so it scales with the business rather than becoming its constraint. If none of those four is currently a real gap, the honest answer to the question in the title is probably “not yet”.

The signals that say yes

A transaction is coming. A funding round, an acquisition, a sale or a refinancing — each demands finance leadership the business almost certainly does not have internally, and each judges the quality of the finance function as part of the process. This is the clearest single trigger, and the timing matters: an FD appointed twelve to eighteen months before a process adds far more value than one hired during it.

The MD is the de facto finance leader. If the founder or Managing Director is personally handling the bank, the forecast, the pricing decisions and the investor conversations between running the rest of the business, the seat already exists and is being filled badly by someone whose time is worth more elsewhere.

The board asks questions the function cannot answer. Not “what were the numbers” — a Financial Controller answers that — but “what happens to cash if we open the second site early”, “which customers actually make us money”, “can we afford this hire and this acquisition in the same year”. A finance function producing accurate history but unable to model forward is signalling the gap.

Complexity has outgrown the structure. Multiple entities, international operations, a group requiring consolidation, or regulated status — each adds a layer that needs senior ownership rather than being absorbed by an already-full FC.

Lenders or investors are already in place. Covenant reporting, investor packs and board meetings with external participants raise the bar on both the numbers and the person presenting them. Investors in particular tend to form a view of a business through its finance leadership.

Growth is outpacing the finance function. If the finance team is permanently behind, and each period of growth makes it further behind rather than better resourced, the missing element is usually leadership rather than headcount — someone to design the function the business will need in two years rather than staffing the one it had two years ago.

One or two of these might be handled by other means. Three or more together, and the appointment is overdue rather than premature.

The signals that say not yet

Equally worth being honest about. If the finance need is fundamentally about accurate reporting and control — the close, the balance sheet, the audit, the team — that describes a Financial Controller, and hiring an FD for it produces an expensive, under-used executive. If the business is single-entity, unfunded and not heading for a transaction, the strategic remit that justifies the salary may not exist yet. If the founder genuinely wants to keep the strategic finance decisions, an FD will chafe and leave; a strong FC and good external advice serves better. And if the honest driver is that the business feels it ought to have one at its size, that is not a reason — plenty of successful £20m businesses run on a Head of Finance and an external adviser, and the right structure is the one the business actually needs. Our guides on FC versus FD and when a Head of Finance fits work through the alternatives.

What it costs in 2026

Option	London	Regional UK
Finance Director (SME, £10m–£40m)	£110k–£150k	£95k–£125k
Finance Director (larger / group)	£140k–£190k	£120k–£160k
Fractional FD (1–2 days/week)	£800–£1,400/day	£700–£1,100/day
Interim FD (full-time, fixed term)	£700–£1,200/day	£600–£950/day
Head of Finance (the level below)	£80k–£125k	£70k–£106k

Bonuses of 20–40% are common, with equity or long-term incentives close to standard in investor-backed businesses. Read the fully-loaded cost rather than the base: employer’s National Insurance, pension and benefits add materially, and the honest comparison against a fractional arrangement should use that figure. Full benchmarks across the function are in our salary guides.

The alternatives worth weighing first

A fractional Finance Director. One or two days a week, ongoing — genuine strategic finance leadership, board support and investor-facing capability at a fraction of the full-time cost. This is the fastest-growing arrangement in UK senior finance and it suits precisely the business that has the need but not the scale, converting naturally to a permanent appointment when growth justifies it. Our fractional practice covers the model.

An interim Finance Director. Full-time but fixed-term — the right answer where the need is bounded: leading a transaction, covering a departure, or building the function before a permanent hire. It also serves as a test: an interim proves what the permanent role should actually be, which turns the eventual specification from guesswork into experience.

A Head of Finance instead. Where the need is a senior finance leader running the function and contributing commercially, but without the board, fundraising and transaction remit, the Head of Finance seat fits the business as it actually is and costs meaningfully less — with room for the right person to grow into the FD role as the business does.

Strengthening the layer below. Sometimes the real constraint is that the FC has no support, not that the business lacks strategic finance — and a Management Accountant or FP&A hire beneath an existing FC releases exactly the capacity that was missing, at a third of the cost of an FD.

If the answer is yes: hiring well

Three things separate FD appointments that work from those that do not. Specify the actual remit, not the title. Write down the four or five things this person will own that nobody currently does — and if that list is thin, revisit whether the appointment is right. Test the four capabilities explicitly: technical credibility, commercial judgement, external capability (banks, investors, advisers — where first-time FDs most often struggle), and the ability to build a team. Ask for a transaction they led, a challenge they made that changed a decision, a lender relationship they owned, and a function they built; vague answers on any of the four warrant hard follow-up. And be honest about the business. Strong FD candidates are assessing you as much as you are assessing them, and they will discover the messy reality in month one regardless — describing it openly attracts the ones who find fixable problems energising and filters the ones who do not. Our guide to what boards look for in an FD covers the assessment from the other side.

What happens in the first year

A useful way to sense-check the decision is to look at what a good first year actually produces, because if the list does not sound valuable to your business, the appointment probably is not either. In the opening quarter a strong FD establishes the real financial picture — frequently finding that the numbers the business steers by are less reliable than assumed — and rebuilds the board reporting around what actually drives the business rather than what the system happens to produce. By the half-year the forecast is trustworthy enough to make decisions on, the banking or investor relationship has been taken off the MD’s desk, and the finance team has a structure and a development plan. By year-end the business has been through a full planning cycle with the FD leading it, the controls and governance stand up to external scrutiny, and — the test that matters most — the MD spends materially less time on finance and makes better-informed decisions. If a transaction is in view, the business is measurably readier for it than it was. Where a first year does not produce most of that, the usual cause is not the individual but the mandate: an FD appointed without genuine authority over the function and a seat at the decisions produces an expensive observer.

Common questions

At what turnover should a business hire a Finance Director? There is no reliable threshold — complexity, funding and transaction activity matter far more than revenue. Businesses appoint anywhere from £5m to £50m depending on those factors, and some never need one. Can our Financial Controller grow into the role? Often yes, where the individual has the commercial range and appetite, and it is usually the best outcome when it works — the guide on the FC-to-FD step covers what it requires. Should a first FD be full-time? Not necessarily — fractional and interim routes exist precisely for the business with real need and uncertain scale. How long does an FD search take? Typically six to twelve weeks to offer for a permanent appointment, plus notice periods that are frequently three months at this level; interim can start within days. What if we get it wrong? A mis-hire at this level is expensive but recoverable — the more common and costlier error is appointing at the wrong level, which is why the honest assessment above matters more than the search itself.