Fractional CFO vs full-time hire — when each makes sense
How to decide between a fractional CFO and a permanent hire, with the cost lines and inflection points laid out.
Start with the work, not the title
A CFO role at a $5m business looks nothing like a CFO role at a $50m business. List the work that genuinely needs CFO-level judgement — fundraising, board reporting, capital structure, M&A, scenario modelling — and separate it from the work a strong Controller and FP&A lead can already cover. The answer to fractional versus full-time falls out of that list, not out of a salary survey.
Run the fully-loaded numbers
A full-time CFO at $150–250k base lands closer to $200–350k once benefits, equity, recruiting and onboarding time are included. A fractional CFO at one to three days a month is typically a tenth of that, with senior judgement available exactly when it is needed. Below $20m in revenue, the fractional model is almost always the better economics; above $50m, the case for a full-time hire usually becomes clear.
Watch for the inflection points
Three signals point to a permanent hire: complex multi-entity structures with daily judgement calls, an active fundraising or transaction window, and a leadership team that needs a finance peer in every operating decision. Until all three are present, fractional CFO support paired with a strong Controller usually outperforms a single full-time hire — and costs far less.
Use the gap to build the function
The right way to use a fractional CFO is not as a stop-gap, but as the architect of the function the future full-time CFO will inherit. Cash forecasting cadence, board pack format, KPI dashboards, audit readiness — all of it can be built in the fractional window so that when a permanent hire arrives, they walk into a working system, not a blank page.