What is the difference between a fractional, outsourced, and virtual CFO?

There is no real difference. Fractional CFO, outsourced CFO, virtual CFO, and CFO as a service all describe senior finance leadership provided part-time for a monthly fee rather than through a full-time hire. The labels mainly reflect how often the CFO works with you and whether the work is remote or on-site. For the full market breakdown, see our guide to how much a CFO costs in Singapore .