The useful question is not simply “what does a fractional CFO cost?” It is what financial leadership your business needs, how much work is required to deliver it and what the proposal actually includes. Two monthly fees can look similar while buying very different levels of support.
Fractional CFO cost in the UK depends on scope, time commitment, business complexity, the condition of the finance function and the urgency of the decisions ahead. A fixed monthly retainer can make spending predictable, but only if the deliverables, responsibilities and additional charges are clear.
This guide is for UK SMEs across sectors, including professional services, recruitment, manufacturing, retail and technology. It explains how to compare proposals and choose an engagement structure. It is not a market pricing survey or a published Consult EFC price list; the numerical comparison below is explicitly hypothetical.
What are you paying a fractional CFO to do?
A fractional CFO provides an agreed amount of senior financial leadership without a full-time appointment. Depending on the engagement, that can include forecasting, management reporting, commercial decision support, board preparation, funding readiness or financial oversight during growth and transactions.
It is important to distinguish leadership from processing. Bookkeeping records transactions, management accounting explains performance and a CFO helps management use financial information to make decisions. These roles can work together, but a CFO retainer does not automatically include bookkeeping, payroll, tax filings or statutory accounts.
Define the outcome before comparing the price. A business needing its first reliable cash forecast has a different brief from one negotiating acquisition finance or preparing for investment. Our fractional CFO service explains the wider role; the proposal should state the part of that role your business is buying.
- 01Define the needStart with the decisions and deliverables.
- 02Compare the scopeCheck exclusions, availability and setup.
- 03Agree the feeDocument the terms and change process.
The main factors that change the fee
The condition of the underlying records
Reliable, reconciled accounts make senior analysis more efficient. If bank balances, customer ledgers or stock records are incomplete, a reporting and forecasting engagement may need an initial clean-up phase. Clarify who will perform that work and whether it is included.
Do not assume the CFO will personally process every correction. A sensible arrangement may use your bookkeeper or accountant for the close, with the CFO setting priorities and reviewing the resulting information. The division of responsibility affects both cost and delivery.
Business complexity and reporting requirements
Several entities, locations, currencies or business models can require more work than a single-company structure. Complexity also comes from the decisions: a small manufacturer with stock and production issues may need more analysis than a larger consultancy with simple transactions.
External stakeholders can add requirements. Investor reporting, lender covenant calculations or board attendance take preparation time as well as meeting time. Ask whether the fee covers the required frequency, supporting schedules and follow-up questions.
Frequency, availability and urgency
A monthly review is different from weekly cash meetings and involvement in an active transaction. Define regular contact, expected response arrangements and the availability needed during critical periods. “Access to a CFO” is too vague to establish the service level.
Urgent work can also change sequencing. If the business needs a lender pack in two weeks, the adviser may need to reprioritise existing work or involve additional resources. Agree that change explicitly rather than assuming the original monthly scope covers any deadline.
Whether you need recurring support or a defined project
A completed model, a finance diagnostic and an ongoing CFO role are different deliverables. A project can establish the reporting system, followed by a smaller recurring engagement to maintain oversight. In other situations, continued involvement is needed to implement decisions and manage stakeholders.
Consider who owns the outputs after delivery. An impressive model has limited value if nobody inside the business can update it. Training, documentation, review and handover should be included in the scope where they are needed.
Compare the main engagement structures
| Structure | What to define | When it can be useful |
|---|---|---|
| Monthly retainer | Recurring outputs, meetings, availability and change control | Continuing financial leadership and reporting |
| Agreed days or hours | Time allocation, preparation, unused time and extra work | A defined level of recurring involvement |
| Fixed-fee project | Deliverables, assumptions, milestones and revision limits | Forecasting, reporting setup or readiness work |
| Initial diagnostic followed by support | Assessment output and how the next scope is agreed | Unclear finance gaps or a business needing prioritisation |
| Interim intensive assignment | Responsibilities, duration, authority and handover | A transition, vacancy or time-sensitive period |
There is no universal best structure. Choose one that matches the work and makes changes manageable. A fixed fee is helpful when the boundaries are clear; time-based work can be appropriate where the task is uncertain, provided authorisation and reporting are controlled.
ICAEW’s guidance on professional liability and engagement terms emphasises documenting what is provided and the basis for charging. For the client, written scope is a practical tool for comparing and managing the engagement.
Worked example: compare total scope, not just the monthly headline
These fictional proposals illustrate a comparison method. They are not Consult EFC fees, quoted market averages or recommendations for your business. Assume a company wants twelve months of reporting oversight, a cash forecast and an initial integrated model.
| Hypothetical proposal | Monthly fee excluding VAT | Separate model setup | Illustrative first-year total excluding VAT |
|---|---|---|---|
| Proposal A | £2,500 | £6,000 | £36,000 |
| Proposal B | £3,000 | Included | £36,000 |
Proposal A is £2,500 multiplied by twelve, plus £6,000. Proposal B is £3,000 multiplied by twelve. The first-year totals are the same, although the timing and recurring cost differ. This does not establish that the services are equivalent.
Now compare what each proposal covers: who builds the model, whether it is integrated, the number of review cycles, board attendance, forecast updates and who handles data preparation. Check whether either proposal includes different amounts of implementation work or depends on records you cannot currently provide.
If VAT is chargeable at the UK standard rate of 20%, each £36,000 total would become £43,200 including VAT. GOV.UK explains the standard VAT rate. The actual VAT treatment and whether your business can recover it depend on the circumstances, so compare cash outlay separately from recoverable tax.
In the second year, the assumptions would also need refreshing. The model setup may not recur, but the business might need additional reporting or transaction support. Avoid choosing an adviser solely on a first-year arithmetic comparison.
What should a well-scoped retainer include?
An effective proposal describes outputs that management can recognise and use. “Strategic finance advice” may be part of the role, but it should sit alongside concrete responsibilities, working arrangements and the information required from your team.
| Area | A useful scope statement | Question to ask |
|---|---|---|
| Reporting | Monthly review pack with agreed comparisons and commentary | Who closes the books and by when? |
| Cash | Rolling cash forecast with defined update frequency | Who supplies collections and payment assumptions? |
| Planning | Budget or forecast update with documented drivers | Which scenarios and entities are covered? |
| Commercial support | Analysis of specified pricing, hiring or investment decisions | How are additional decisions prioritised? |
| Stakeholders | Agreed board or lender preparation and attendance | What follow-up is included? |
| Oversight | Action log, responsibility matrix and review process | Who can approve and implement changes? |
Define what success means after an initial period. It might be a reconciled reporting pack, a forecast that management can update or a funding model ready for agreed stakeholder review. These are more assessable than a promise to “transform finance”.
What may sit outside the quoted fee?
Common areas to clarify include bookkeeping remediation, payroll administration, tax work, statutory accounts, legal advice, external valuations, due diligence reports, systems implementation and transaction execution. Some advisers can provide several of these services, but their inclusion should be explicit.
Check third-party costs too: accounting software, reporting tools, data-room subscriptions, travel and specialist advisers. An inclusive description should say what is included rather than leaving the client to discover the exclusions through invoices.
Funding and sale processes deserve particular care. Routine forecasting support is different from responding to a large diligence request, preparing several revised models or attending extensive negotiations. Agree how a live transaction changes the scope and fee before the workload expands.
For a defined requirement, compare the relevant standalone service, such as financial modelling, cash flow forecasting or fundraising readiness. A full recurring CFO engagement is not always necessary to solve a specific problem.
Compare fractional support with a full-time appointment fairly
A full-time employee provides capacity and continuity across the working week. A fractional engagement provides an agreed part of a senior role. They should not be treated as identical services with different price tags.
When comparing costs, consider the full employment package, recruitment, onboarding and the support team each option requires. Also compare actual availability and operational responsibility. Dividing an annual salary by a few days can understate differences in commitment and accountability.
A business that needs daily leadership, extensive people management and constant operational decisions may require an in-house role. Another may already have a capable finance team and need senior oversight at key points. The right choice depends on the work, not an assumption that fractional support is always preferable.
Do not count the same saving twice. If you still need bookkeeping, payroll and compliance support, include them in the cost model under either arrangement. Any comparison with a large advisory firm should use genuinely comparable scope, rather than an unsupported headline fee.
Match the scope to your sector and next decision
For manufacturers and distributors, the brief may centre on margin analysis, stock, capacity and working capital. For recruitment businesses, weekly payroll funding and customer collections can require a different reporting rhythm. Professional services firms may need project profitability, utilisation and resource planning.
For technology and AI companies, the work can include product economics, development spending, funding requirements and the distinction between contracted and usage-based revenue. SaaS businesses may also need retention and recurring-revenue analysis. Our SaaS-specific CFO cost guide addresses that narrower setting.
The immediate business event matters as much as the sector. A sale, acquisition, leadership transition or new financing arrangement can create a temporary need for more involvement. A stable reporting cycle may later support a different scope.
Questions to ask before agreeing the engagement
- What are the first priorities, deliverables and information requirements?
- Who performs the work and who is the senior person responsible for reviewing it?
- What contact, meetings and response arrangements are included?
- What remains with the internal team, bookkeeper and tax advisers?
- Which additional work needs approval and how will it be priced?
- Are the quoted fees inclusive or exclusive of VAT and expenses?
- How are the engagement reviewed, changed, ended and handed over?
Use the answers to compare proposals in a consistent table. A lower price can be good value when it covers the work required. A higher price can also be justified by a materially different brief. The decision needs the detail behind both figures.
Getting a useful quote from Consult EFC
Bring a short description of your business, its finance team and the decisions or deadlines ahead. Explain what works today and what does not: late reports, unreliable forecasts, an upcoming funding round or uncertainty about margins, for example.
Consult EFC can then scope the required support and agree the deliverables, responsibilities, timing and fee. Do not send a full confidential data room in an introductory enquiry; agree the engagement and secure information-sharing process first.
Frequently asked questions
How much does a fractional CFO cost in the UK?
The fee depends on scope, time commitment, complexity, data quality and urgency. Obtain a written proposal covering deliverables, availability, exclusions, VAT and additional work. The hypothetical prices in this guide are not a market survey or Consult EFC price list.
Does a monthly CFO retainer include bookkeeping and tax?
Not automatically. Bookkeeping, payroll, statutory accounts, tax work and senior financial leadership are distinct responsibilities. The proposal should state what is included and who provides the remaining services.
Is a fixed monthly fee better than paying for days?
It depends on the work. A retainer can provide predictable spending for recurring outputs; agreed time can suit a defined level of involvement. In either case, clarify availability, preparation, additional work and change control.
Can I use a project instead of an ongoing CFO engagement?
Yes, where the requirement is a defined output such as a model, reporting setup or cash forecast. Consider who will update the work afterwards and whether ongoing review or implementation support is needed.
How can I get a quote from Consult EFC?
Describe your business, current finance arrangements, priorities and next decision or deadline. Consult EFC can agree a scope and fee around the required support before work starts.
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Over 12 years across Big Four audit, Investment Banking, and corporate advisory. Kish works with SaaS founders, tech companies, and ambitious UK SMEs from £1M to £50M in revenue on fundraising, valuations, exit planning, and financial strategy. ICAEW regulated. Big Four trained. Based in London.