"Do I need a finance director?" is one of the most common — and most expensive to get wrong — questions a growing business faces. Hire too early and you are paying six figures for capacity you don't yet use. Hire too late and you are making big decisions blind. The good news: for most businesses, the honest answer is "not a full-time one — at least not yet." This guide explains what a finance director actually does, how to tell when you genuinely need that judgement, and the cheaper alternatives that deliver most of the value at a fraction of the cost.
In short: You need finance-director-level judgement when financial complexity outgrows your bookkeeper and your own capacity — when you need forward-looking decisions, not just accurate history. But needing the judgement is not the same as needing a full-time hire. A fractional FD or a virtual finance office delivers the same core outputs — management reporting, cashflow forecasting, board-ready numbers — for a fraction of a £120,000+ salary. Hire full-time only once the role is genuinely full-time.
What a finance director actually does
A finance director is not a senior bookkeeper. The distinction matters, because it is exactly where businesses misjudge the hire. Bookkeeping and statutory accounts look backwards — recording what happened and reporting it accurately. A finance director looks forwards: turning the numbers into decisions.
A finance director typically owns:
- Management reporting and interpretation — not just producing monthly accounts, but explaining what they mean and what to do about them.
- Cashflow and scenario forecasting — answering "can we afford this hire / this stock order / this slow quarter?"
- Budgeting and margin analysis — pricing, profitability by product or client, and where the money actually leaks.
- Funding and lender relationships — preparing for and managing debt, investment, or grant funding.
- Board and investor reporting — the numbers and narrative a board or lender needs to trust.
- Financial controls and risk — making sure the business isn't exposed by weak processes.
Notice what is not on that list: recording transactions, reconciling the bank, filing VAT. That is bookkeeping and compliance — essential, but a different job. Confusing the two is why some businesses hire an expensive FD to do work a good bookkeeper and accountant already cover.
Finance director vs financial controller vs bookkeeper
Three roles, often blurred. Getting them straight tells you what you actually need to buy:
- Bookkeeper — records transactions, reconciles accounts, runs payroll and VAT. The foundation. Backward-looking and operational.
- Financial controller — runs the finance operation: accurate month-end close, controls, compliance, and reliable management accounts. Makes sure the numbers are right and on time.
- Finance director — sets financial strategy and supports decisions: forecasting, funding, pricing, board-level judgement. Makes sure the right decisions get made from those numbers.
Most growing businesses don't have a clean gap that exactly fits one of these. They have accurate-enough books, but no one turning the numbers into decisions. That is an FD-shaped need — but usually a part-time one.
Not sure which level you need?
A virtual finance office blends controller-level rigour with FD-level judgement — scaled to what your business actually needs.
How to tell if you need finance-director judgement
Forget headcount and turnover thresholds — they are poor guides. The real signal is the type of question you can't currently answer. You likely need FD-level judgement if:
- You make significant decisions (hiring, pricing, big purchases, funding) on gut feel because the numbers aren't there when you need them.
- Your monthly accounts arrive late, or you get them but don't fully understand what they're telling you.
- You can't confidently answer "what will our cash position be in three months?"
- You are about to raise money, take on debt, or sell — and need numbers a third party will scrutinise.
- You have multiple revenue streams or entities and can't see which are actually profitable.
- You — the owner — have become the de facto finance function, and it's eating the time you should spend running the business.
If several of these ring true, the need is real. The next question is how to meet it — and that is where most businesses overspend.
The cheaper alternatives to a full-time FD
A full-time finance director in the UK typically costs £90,000–£150,000 plus employer's National Insurance, pension and benefits — frequently £120,000–£190,000 all-in. For most businesses under, say, £10m turnover, that is a lot of fixed cost for a role that isn't yet full-time. The alternatives:
📊 Your options, cheapest judgement-per-pound first
- Fractional / part-time FD — a senior finance person for a day or two a month. You get experienced judgement for the decisions that matter, without a full-time salary. Best when your operations are handled but you lack senior steering.
- Virtual finance office (VFO) — an outsourced team that delivers the whole finance function: management accounts, cashflow, KPI reporting and board packs, with FD-level oversight built in. Best when you need both the operations and the judgement, scaled to size.
- Upskill your bookkeeper + buy in FD judgement — keep day-to-day in-house and bring in senior input only at decision points. Cheapest, but relies on your existing team's capacity.
- Full-time FD — the right answer only once the role is genuinely full-time (see below).
The key insight: you can usually unbundle the finance director role. You don't need one person doing all of it full-time — you need each component covered at the right level. That is precisely what a virtual finance office is designed to do.
💡 The same need, met three ways
Take a business at around £4m turnover whose owner is spending two evenings a week wrestling with the numbers and still can't confidently answer "can we afford to expand?" The need is clear: finance-director-level judgement. But that single need can be met very differently:
- Full-time FD — solves it completely, but at £120,000–£190,000 all-in for a role the business won't fully use yet.
- Fractional FD — a senior person two days a month interpreting the numbers and building the forecast. Far cheaper, but relies on the underlying finance operation being solid.
- Virtual finance office — delivers the monthly management accounts and cashflow and the FD-level judgement as one service, scaling as the business grows.
Same underlying need. The right answer depends on whether the finance operations are already handled, or need building too — which is exactly the question to ask before hiring.
When a full-time finance director does make sense
None of this is an argument against ever hiring one. A full-time FD becomes the right call when the role is genuinely full-time — typically when you have several of: complex group or multi-entity structures, multiple significant revenue streams, active fundraising or M&A activity, substantial headcount, or a board that needs constant financial steering. At that point, the cost is justified because the capacity is fully used.
The mistake is hiring at that level before you're there — paying for a full-time strategic role when what you actually have is a part-time need plus a gap in finance operations.
⚡ Key takeaways
- A finance director is forward-looking (decisions, forecasting, funding) — not a senior bookkeeper.
- The signal you need one is the questions you can't answer, not your turnover or headcount.
- A full-time FD costs £120,000–£190,000 all-in — often more capacity than a growing business uses.
- A fractional FD or virtual finance office delivers the same core outputs for a fraction of the cost.
- Hire full-time only once the role is genuinely full-time: complex structure, fundraising, M&A, large team.