Growth does not automatically mean a business needs a full-time CFO.
The better question is whether the financial complexity of the business has moved beyond the capability of the current finance setup.
That often becomes visible before the job title does.
Management information arrives too late to influence decisions. Cash forecasts are unreliable. The CEO is making material commitments without a clear view of the financial consequences. Fundraising, acquisitions, international expansion or new debt introduce questions that the existing team has not dealt with before.
At that point, the gap is not simply more accounting capacity. It is financial leadership.
A good CFO should bring the business forward-looking information, challenge assumptions and connect financial decisions to commercial strategy. That can include cash and working-capital planning, scenario modelling, board reporting, investment appraisal, funding strategy and building a finance function that can scale with the business.
The important point is proportionality. Some businesses need a full-time CFO. Others need experienced leadership for a few days each month, around a transaction, or during a specific period of change.
The right answer depends on the business, the complexity and the decisions ahead — not on reaching an arbitrary revenue threshold.
Closing thought
If the leadership team is regularly making important decisions faster than finance can provide reliable insight, the business may already have outgrown its current finance model.