At what point a company actually needs a CFO — and what "needing one" means in practice

"We'll hire a CFO once we hit X in revenue" is a common plan and a poor one. Two companies at the same revenue can have completely different finance needs depending on how many entities, financing instruments, and reporting obligations they're actually carrying.

A financing decision the founder can't fully evaluate alone. A board or investor expecting monthly, not quarterly, reporting. More than one entity or currency in the picture. Any one of these is a stronger signal than a revenue number on its own — and often arrives well before the revenue milestone would have.

At roughly 45 hours a month of genuine need, a fully-loaded full-time hire costs meaningfully more than a fractional engagement covering the same scope — not because the fractional model is cheaper labor, but because a full-time role carries employer costs, ramp-up time, and vacancy risk that a fractional engagement doesn't. The comparison only makes sense once the actual hours-per-month need is honestly estimated, not assumed.