Interim CFO for SaaS & Tech Companies

Sometimes your business needs a CFO now — not in three months when you've finished recruiting. An interim CFO steps in immediately to provide hands-on financial leadership during critical periods: a fundraise, a CFO departure, rapid growth, restructuring, or a transaction that needs senior finance expertise on day one.

I provide interim CFO services for SaaS and technology companies, typically working 3-5 days per week for a defined period. Think of it as renting a CFO — full commitment, immediate impact, no long-term employment obligation.

When Do You Need an Interim CFO?

An interim CFO fills a specific gap. The most common situations where SaaS and tech companies bring me in:

CFO Transition or Vacancy

Your CFO has left and you need someone to keep the finance function running while you recruit a permanent replacement. I maintain business-as-usual reporting, manage the team, handle board and investor communications, and ensure nothing falls through the cracks. I can also help define the brief for the permanent hire.

Fundraising or Exit Preparation

You're about to enter a fundraise or M&A process and need a senior finance person to build the data room, prepare investor materials, manage due diligence, and be the financial point of contact throughout the deal. This is time-intensive work that requires deep SaaS finance experience.

Rapid Growth or Scaling

Your business is growing faster than your finance function can keep up. Revenue is scaling, headcount is expanding, costs are multiplying, and the financial infrastructure that worked at £2M ARR is breaking at £8M. An interim CFO builds the processes, systems, and reporting framework you need for the next stage.

Financial Restructuring

Cash is tight, costs need cutting, or the business model needs rethinking. An interim CFO brings objectivity and experience to difficult decisions — restructuring costs, renegotiating contracts, rebuilding forecasts, and communicating a credible recovery plan to the board and investors.

Specific Finance Projects

ERP implementation, system migration, financial controls overhaul, audit preparation, or building a finance team from scratch. These projects need senior leadership for a defined period, not a permanent hire.

What I Deliver as Interim CFO

During an interim engagement I operate as a full member of your leadership team. This typically includes leading the finance function day-to-day, managing and mentoring the finance team, producing monthly management accounts and board packs, building or rebuilding the financial model, managing cash flow and runway, supporting fundraising or transaction processes, attending board meetings and presenting financials, and implementing financial controls and processes.

The difference between an interim CFO and a consultant is accountability. I don't write a report and leave. I own the numbers, make decisions, and take responsibility for the finance function's output.

How Interim Engagements Work

Most interim CFO engagements last 3-9 months. I typically work 3-5 days per week, depending on the intensity of the situation. For fundraising or exit scenarios, it's usually full-time for the duration of the process.

I start fast. Within the first week I'll have assessed the current state of the finance function, identified the critical gaps, and put a plan in place. By the end of week two, I'm producing outputs and making an impact.

When the engagement ends — whether that's because you've hired a permanent CFO, the transaction has completed, or the project is finished — I ensure a clean handover with full documentation so nothing is lost.

Why Choose a Specialist SaaS Interim CFO?

SaaS finance is different. Recurring revenue models, deferred revenue, cohort analysis, unit economics, and investor metrics like burn multiple and Rule of 40 require specific expertise that a generalist interim CFO won't have. I've worked across multiple SaaS businesses and understand the financial dynamics that matter at every stage of growth.

I also understand the pace. Tech companies move fast, and the finance function needs to keep up. I'm comfortable working in Slack, using cloud tools, and operating in an environment where decisions happen daily — not quarterly.

Book a free discovery call to discuss your interim CFO requirements.