What is a CFO and Does Your Startup Actually Need One?
Written by
Runo Perruno

As startups scale, the question of financial leadership becomes unavoidable. But hiring a full-time Chief Financial Officer is a significant commitment. So when does it actually make sense?
What Does a CFO Do? 😁
A CFO goes far beyond bookkeeping or tax filing. Their core responsibilities include financial strategy, fundraising support, investor relations, risk management, and long-term planning. They translate numbers into business decisions.
The Early-Stage Reality
Most startups under $1M ARR don't need a full-time CFO. A good accountant combined with a part-time fractional CFO can cover the essentials — financial reporting, runway management, and basic forecasting — at a fraction of the cost.
Signs You're Ready for a CFO
- You're preparing for a Series A or beyond
- You have complex revenue streams or international operations
- Your board is asking for financial reporting you can't produce
- You're spending more than a few hours a week on financial decisions yourself
Fractional CFOs: A Middle Ground
Fractional CFOs work with multiple companies part-time. For startups between $500K–$5M in revenue, this is often the smartest move — you get senior financial expertise without the $200K+ salary commitment.
The right time to hire financial leadership is slightly before you think you need it. By the time the problem is obvious, it's usually expensive. ✅