How to Hire a Fractional CFO

You’ve decided a fractional CFO is the right model for your business. The next question is how to find the right person, evaluate them properly, and structure an engagement that works. This guide covers the practical steps — defining the brief, sourcing candidates, assessing them correctly, agreeing the terms, and getting the onboarding right. Adrian Lawrence FCA, founder of FD Capital and a Fellow of the ICAEW, has placed fractional CFOs for UK businesses since 2018. To engage FD Capital for your fractional CFO search, call 020 3287 9501 or visit our Fractional CFO page.

If you’re still deciding whether fractional is the right model, see our decision guides: When to Hire a Fractional CFO | Full-Time vs Fractional CFO | How Much Does a Fractional CFO Cost?

Adrian Lawrence FCA — Founder, FD Capital
Fellow of the ICAEW | ICAEW-Registered Practice | Fractional CFO placements since 2018

The most common mistake in hiring a fractional CFO is starting with candidates before defining the brief. A vague mandate — “we need someone to help with finance” — produces a vague shortlist of generalist candidates who may or may not have the specific skills the business needs. The brief should answer three questions before sourcing begins: what does the business need the fractional CFO to deliver, how many days per week is that work, and what specific experience is essential versus desirable? With that clarity, the search is fast and the shortlist is useful.

Step 1: Define the Brief Precisely

A well-defined fractional CFO brief has three components: the deliverables, the commitment, and the essential experience.

Deliverables are the specific outputs the business needs — not job description bullet points but actual deliverables. “Produce monthly management accounts by the 10th working day” is a deliverable. “Provide financial oversight” is not. Common fractional CFO deliverables include: produce the monthly board pack, manage the annual audit process, build and maintain the three-year financial model, lead the next fundraising round, oversee the finance team’s output, manage bank and investor relationships, and advise the CEO on commercial decisions. The more specific the deliverable list, the easier it is to assess whether a candidate can deliver it.

Commitment is the number of days per week required and the anticipated duration. Most fractional CFOs work one to three days per week per client. Be realistic: if the deliverables you’ve listed above would require a full-time CFO to complete comfortably, the fractional model may not be appropriate and the brief should be revised before the search begins.

Essential experience is the specific background the candidate must have — not “CFO experience” generically but the specific domain knowledge the role requires. A SaaS business raising Series B needs a CFO who has managed a VC fundraising process, built a recurring revenue financial model, and has investor relations experience. A PE-backed manufacturing business needs a CFO who understands debt covenant management, EBITDA normalisation and portfolio company reporting. Getting this specific means the shortlist contains candidates who can deliver from day one rather than ones who will learn on the job.

Step 2: Source Candidates Through the Right Channels

Specialist fractional finance recruiters

The most efficient route to a well-qualified fractional CFO shortlist is through a recruiter that specifically places fractional and portfolio finance professionals and has a live network of candidates available at short notice. FD Capital’s network of fractional CFOs is maintained actively — candidates who are available for new engagements, candidates between engagements looking for their next client, and candidates who are at capacity but have the right background if timing allows. This network is not accessible through general job boards. Call 020 3287 9501 to brief FD Capital directly — shortlists are typically available within three to five working days.

Professional networks and referrals

Many fractional CFOs do not actively apply to job boards — they build their portfolio through professional reputation and referrals. If the business has relationships with its existing advisers (accountants, lawyers, existing investors) who work extensively with high-growth businesses, a referral from one of those advisers to a fractional CFO they have seen perform well is a reliable signal of quality. The limitation is that referrals are limited to the referrer’s network, which may or may not include fractional CFOs with the specific domain experience the business needs.

What to avoid

General job boards are poorly suited to fractional CFO recruitment. The candidates who apply to a job board advertisement for a fractional CFO are disproportionately those who are between permanent roles and using “fractional” as a bridge — not committed portfolio finance professionals who have chosen the fractional model as their primary career structure. The candidate quality and commitment profile is materially different. Similarly, LinkedIn search without specific domain filters produces a very long list of CFO-title profiles with widely varying relevance to the specific brief.

Step 3: Evaluate Candidates Correctly

Assess for fractional-specific capability, not just CFO experience

Hiring a fractional CFO requires a different assessment lens than hiring a permanent one. The questions that matter most: how many clients are they currently working with and at what day rates, what is their method for managing competing client priorities, how do they handle situations where multiple clients need their attention simultaneously, and how do they transfer institutional knowledge when an engagement ends? These questions reveal whether the candidate has genuinely built a fractional practice or is treating the arrangement as temporary employment.

Test the brief specifically

Give each candidate a copy of the brief and ask them to respond specifically to each deliverable: have they done this before, in what context, and what approach would they take? A fractional CFO who has managed a SaaS Series B fundraising previously will give a specific, credible answer about the investor process, the model they would build, and the timeline they would work to. One who hasn’t will give a generic answer. The specificity of the response to the actual brief is the most reliable quality signal in the assessment process.

Check sector and stage fit

The financial dynamics of a pre-revenue biotech company are completely different from those of a £25 million recurring revenue SaaS business, which are different again from a PE-backed manufacturing group. A fractional CFO who has only ever worked with early-stage tech businesses will not automatically know how to manage the working capital cycle of a product manufacturer or the debt covenant compliance of a leveraged buyout. Check that the candidate’s prior engagements match the specific context of your business in terms of sector, revenue stage, and ownership structure.

Step 4: Structure the Engagement Correctly

Define days, deliverables and review points

A well-structured fractional CFO engagement has three elements: a clear commitment of days per week or month, a set of deliverables that those days are expected to produce, and a review point (typically at three months) at which both parties assess whether the arrangement is working and adjust the terms if needed. The days-and-deliverables structure keeps both parties focused on outcomes rather than presence, which is appropriate for a professional operating at CFO level.

IR35 assessment

Most genuine fractional CFO engagements fall outside IR35 — the professional works across multiple clients, provides services on a project or retainer basis, uses their own equipment, and bears financial risk across their client portfolio. However, the business is responsible for making the IR35 status determination under the off-payroll working rules and must document it. FD Capital’s engagements include standard contractual provisions that support the outside-IR35 position for genuine fractional arrangements. See HMRC’s IR35 guidance for detail.

Day rate and payment terms

Fractional CFOs typically charge a day rate (£450–£750 per day for most mid-market engagements, higher for specialist sectors or PE/listed company contexts) or a monthly retainer based on an agreed number of days. Monthly retainers provide predictability for both parties and are the most common structure for ongoing fractional engagements. Agree the retainer, the included days, the policy for additional days, and the notice period at the outset — these terms should be documented in a simple services agreement before the engagement begins.

Step 5: Onboard Effectively

A fractional CFO’s effectiveness in the first 90 days depends almost entirely on how quickly they can build the context they need — the business’s financial history, the key commercial relationships, the management team’s working styles, and the immediate priorities. The business can accelerate this significantly by preparing a structured onboarding pack: the last 12 months of management accounts, the current financial model, the bank agreements, the investor cap table, the key commercial contracts, and an introduction to each member of the management team. A fractional CFO who receives this material before their first day will be productive within weeks rather than months.

Related Fractional CFO and Finance Services

Find a Fractional CFO Through FD Capital

FD Capital places fractional CFOs for UK businesses — shortlists within three to five working days, candidates pre-screened against the specific brief. Tell us your requirement and we’ll take it from there.

📞 020 3287 9501
✉ recruitment@fdcapital.co.uk

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