Part-Time CFO for UK SaaS & Tech Companies
Not every UK SaaS or tech company needs a full-time CFO. But every growing business needs CFO-level thinking. ScaleWithCFO is a London-based, CIMA-qualified part-time CFO service for UK founders - strategic planning, cash flow management, investor relations, and financial rigour on a flexible monthly retainer that matches your stage and budget.
What a Part-Time CFO Does for Your Business
A part-time CFO is a senior financial leader who works with your business on a flexible monthly retainer. At ScaleWithCFO this is ongoing support - you have direct access to my calendar to book strategic calls and catch-ups whenever the business needs them, rather than a fixed number of days per week or month. The scope covers financial modelling, cash flow forecasting, board reporting, budgeting, fundraising support, and exit preparation. Unlike a bookkeeper or accountant who focuses on historical records, a part-time CFO is forward-looking and strategic.
At ScaleWithCFO, I don't just review your numbers once a month. I embed into your team, join your leadership meetings by video, and bring financial clarity to every strategic decision. The model works the same whether you're in London, Manchester, Birmingham, Edinburgh, or anywhere else in the UK - delivery is fully remote, tailored to what your business actually needs.
What's Included
Cash Flow Forecasting & Financial Planning
13-week rolling cash flow forecasts, driver-based budgets, and scenario planning tied to your actual growth levers. Know your runway and the cash impact of every decision before you make it.
Fundraising & Due Diligence
Investor-ready three-statement models, data room preparation, and full due diligence support. We build models grounded in real MRR and churn data that investors can trust.
Monthly Management Accounts & Board Packs
Accurate monthly reports with P&L commentary, SaaS KPI dashboards, runway analysis, and video walkthroughs. Delivered by the 15th, designed to be read in under ten minutes.
Financial Review & Data Cleanup
Chart of accounts restructured to SaaS standards, revenue recognition reviewed against IFRS 15, and a full financial health check before any major milestone.
Cash Flow & Profitability Improvement
Unit economics breakdown by channel and cohort, margin analysis, expense reviews, and pricing strategy. Find where money leaks and fix it before it becomes a problem.
Exit Planning & Preparation
Quarter-by-quarter planning to hit your target valuation. Clean financials, defensible projections, reduced founder dependence, and a data room ready for due diligence.
Why SaaS Founders Choose a Part-Time CFO
Most UK SaaS companies between Seed and Series A aren't ready for a full-time CFO. A senior finance hire comes with significant salary, equity, benefits, and the risk of hiring the wrong person. But you still need the strategic thinking.
A part-time CFO gives you that expertise without the overhead. Ongoing support, not blocks of days. You get direct access to my calendar to book strategic calls and catch-ups whenever the business needs them - scaling up around fundraising, board meetings or year-end, easing back when things are steady. Startups don't run on a fixed weekly schedule; the engagement matches that.
How the Engagement Works
Engagements run on a fixed monthly retainer - no day rates, no billable hours. The scope flexes up or down with your needs, from a light engagement focused on reporting and cash flow to an active engagement leading fundraising or exit preparation.
Scope and fees are scoped in writing after the discovery call, NDA, and access to your financials - once we understand the actual work required. Month-to-month terms with 30-day notice, so you can scale up before a fundraise and scale down once you have raised.
What a Typical Engagement Looks Like
A typical engagement includes weekly or bi-weekly financial review calls, monthly board pack preparation, quarterly strategic financial planning, on-demand advice between scheduled calls, and introductions to accountants, auditors, and banking partners.
Every engagement starts with a discovery phase. In the first two weeks, I review your current financial state - P&L, balance sheet, cash position - identify what reports exist and what is missing, understand your business model and growth trajectory, and pinpoint the immediate pain points.
In months one and two, we build the foundation. This means reviewing your chart of accounts, building your first proper monthly financial package, defining the 8 to 12 KPIs that matter for your business, and cleaning up old accounting entries, misclassifications, and reconciling accounts.
Signs Your SaaS Company Needs a Part-Time CFO
- You have no monthly forecast, or your forecast is wildly inaccurate
- You are surprised by your bank balance at month-end
- You do not know your unit economics - CAC, LTV, churn - and your financial statements are always late or missing
- You are approaching a funding round and your board is asking for monthly reporting you cannot produce
- Investors are asking about unit economics and you are making it up
- You cannot quickly answer what your runway is or how much you are burning
- You are considering a major hire and do not know if you can afford it
- Your founder is spending 20+ hours per week on financial admin instead of growth
Who I Work With
The businesses I work with share a few characteristics: they've found product-market fit, they're growing but the finances feel chaotic, their investors are asking harder questions, or they're preparing for a fundraise or exit. Most are SaaS, AI, or tech companies based in London, but I also work with founders in Manchester, Birmingham, Bristol, Edinburgh, Leeds, and across the UK.
Every engagement is ongoing support with direct calendar access - founders book strategic calls and catch-ups as the business needs them, rather than a fixed number of days per week or month. Intensity flexes around fundraising, board cycles, year-end, or anything else on the horizon.
What Makes ScaleWithCFO Different
No day rate
Fixed monthly retainer covers everything. No billable hours, no surprise invoices.
SaaS/AI specialist
I work exclusively with SaaS, AI and tech companies. Deep expertise in MRR, ARR bridges, and investor language.
Hands-on
We restructure your chart of accounts, fix your gross profit margin, and build the models ourselves - not just advise.
Frequently Asked Questions
A part-time CFO provides senior, strategic finance leadership: cash flow forecasting, financial modelling, board reporting, budgeting, fundraising support, and exit preparation. At ScaleWithCFO this is ongoing support with direct calendar access - founders book strategic calls and catch-ups as the business needs them, rather than billing a fixed number of days per week or month.
A part-time CFO provides the same strategic expertise as a full-time CFO on a fixed monthly retainer. You get ongoing access to senior finance leadership for cash flow, fundraising, board reporting, and exit planning - without the salary, equity, recruitment risk, or notice period of a permanent hire.
Most SaaS companies benefit from a part-time CFO once they have clear product-market fit, are preparing to raise funding, or are outgrowing founder-led finance. At this stage you need financial strategy, investor-ready models, and proper cash flow planning.
A bookkeeper records past transactions, reconciles accounts, and prepares basic financial records. A part-time CFO drives forward-looking strategy: financial planning, forecasting, fundraising, pricing decisions, and helping founders make better business decisions.
Ready to get your finances under control?
Free 15-minute call. No obligation - just a straight conversation.