Outsourced CFO Services UK: What You Get and What It Costs

What outsourced CFO services actually mean

Outsourced CFO services give your company senior finance leadership without hiring a full-time CFO. You get a qualified, experienced finance director who works with your business on a part-time or project basis — typically one to three days per week.

This is not bookkeeping. It is not tax compliance. An outsourced CFO sits between your accountant and your board, turning financial data into decisions. They own the numbers your investors, lenders, and leadership team rely on.

In the UK, outsourced CFO services have grown significantly over the past five years, particularly among SaaS, tech, and AI companies between £500K and £10M in annual recurring revenue. These businesses need strategic finance but cannot justify — or cannot find — a £150K+ full-time hire.

If you are exploring fractional CFO services across the UK, outsourced CFO is largely the same thing. The terms are used interchangeably. What matters is the scope of work, not the label.

What is included

A good outsourced CFO covers the strategic finance functions that your accountant does not. The typical scope includes:

Financial planning and analysis (FP&A)

• Monthly management accounts with commentary
• Rolling forecasts (P&L, balance sheet, cash flow)
• Budget vs actuals variance analysis
• KPI dashboards and board reporting

Cash flow and treasury

• 13-week cash flow forecasts
• Working capital management (debtor days, creditor days, inventory)
• Cash runway monitoring and scenario planning

Fundraising and investor relations

• Financial model build and maintenance
• Investor data room preparation
• Due diligence support
• Cap table management and scenario modelling

Commercial finance

• Pricing analysis and unit economics (LTV, CAC, payback period)
• Contract and deal structuring
• Revenue recognition under FRS 102 or IFRS 15

Systems and process

• Finance tech stack selection (Xero, QuickBooks, reporting tools)
• Month-end close process design
• Internal controls and audit preparation

Not every engagement covers all of the above. You agree on a scope that matches your stage and priorities. A pre-seed company needs cash flow forecasting and a basic model. A Series A company needs board packs, KPI tracking, and fundraising support.

Outsourced CFO vs in-house CFO vs accountant

These three roles are fundamentally different. Here is how they compare:

The most common mistake founders make is expecting their accountant to do CFO work. Accountants ensure compliance. They file your VAT returns, produce statutory accounts, and keep HMRC satisfied. They are not trained to build financial models, negotiate with investors, or advise on pricing strategy.

An outsourced CFO fills the gap between your accountant and a full-time hire. For a deeper look at the role, see what a fractional CFO does.

Typical pricing in the UK

Outsourced CFO services in the UK typically cost between £2,000 and £8,000 per month. Where you land depends on three factors:

£2,000-£3,500/month — Early stage (pre-seed to seed)

• One day per week
• Monthly management accounts, basic forecasting, cash runway
• Suitable for companies with £0-£1M ARR

£3,500-£5,500/month — Growth stage (seed to Series A)

• One to two days per week
• Board packs, investor reporting, fundraising model, KPI dashboards
• Suitable for companies with £1M-£5M ARR

£5,500-£8,000/month — Scale-up (Series A to B)

• Two to three days per week
• Full FP&A function, commercial finance, M&A support, finance team oversight
• Suitable for companies with £5M-£10M+ ARR

Most engagements start at the lower end and expand as the company grows. A good outsourced CFO will tell you when you have outgrown them and need a full-time hire — typically around £8M-£10M ARR or when finance team headcount exceeds three.

Day rates for experienced outsourced CFOs in London and the South East range from £800 to £1,500. Outside London, rates are typically 10-20% lower.

Who benefits most

Outsourced CFO services deliver the most value for:

• SaaS and subscription businesses — recurring revenue, deferred income, and unit economics require specialist knowledge
• AI and deep tech companies — R&D tax credits, grant accounting, and investor-specific metrics
• Funded startups — investor reporting, board governance, and fundraising cycles
• Companies between £500K and £10M ARR — big enough to need strategic finance, too early for a £180K hire
• Founder-led businesses preparing for exit — due diligence readiness and financial housekeeping

If your accountant cannot answer "What is our net revenue retention?" or "How many months of runway do we have at current burn?", you need an outsourced CFO.

What to look for when choosing

Not all outsourced CFOs are equal. Here is what separates a good one from a mediocre one:

Sector experience matters. A CFO who has worked with SaaS companies understands MRR, ARR, churn, LTV/CAC, and cohort analysis. A generalist will need months to learn your model. Ask for references from companies at your stage and in your sector.

Tools and systems fluency. They should be comfortable with Xero or QuickBooks, modelling in Excel or Google Sheets, and reporting tools. If they cannot build a three-way financial model (P&L, balance sheet, cash flow), they are not a CFO — they are a senior bookkeeper.

Investor network. A well-connected outsourced CFO introduces you to VCs, angels, and debt providers. They know what investors look for in a data room because they have been through the process before.

Communication. The best outsourced CFOs translate numbers into plain English. They present at board meetings, challenge assumptions, and push back when spending plans do not match reality.

Availability and responsiveness. Agreed days per week are the baseline. You also need someone who responds to urgent queries outside those days — a cash crisis does not wait for your next scheduled session.

How it works in practice

A typical outsourced CFO engagement looks like this:

Onboarding (weeks 1-4): Review your accounts, systems, and reporting. Identify gaps. Set up monthly reporting cadence and agree on KPIs.

Ongoing (monthly cycle):

• Day 1-5 of each month: month-end close, management accounts, variance commentary
• Mid-month: rolling forecast update, cash flow review, ad hoc analysis
• Board meetings: attend quarterly, prepare the finance section of the board pack

Delivery model: Most outsourced CFOs work remotely with periodic on-site days. A typical split is 80% remote, 20% on-site — particularly for board meetings, team sessions, and investor meetings. Communication happens via Slack, email, and scheduled weekly calls.

What you receive each month:

• Management accounts with written commentary
• Updated cash flow forecast
• KPI dashboard
• Board pack (quarterly)
• Ad hoc analysis as needed (pricing, hiring plans, scenario modelling)

The arrangement is flexible. You scale up before a fundraise and scale back once the round closes. You add days during budget season and reduce during quieter months.

Next steps

If your company is between £500K and £10M ARR and you do not have a senior finance person asking the hard questions, an outsourced CFO is likely the right move.

The cost is a fraction of a full-time hire. The impact on decision-making, investor confidence, and cash management is immediate.

Book a discovery call to discuss what outsourced CFO services would look like for your business.