Fractional CFO
Also known as: Part-Time CFO, Outsourced CFO
Definition
A fractional CFO provides senior finance leadership on a part-time or scoped basis. The role can cover forecasting, board reporting, cash planning, fundraising support, finance team coaching, and transaction preparation. It is most effective when the company needs CFO judgment but not a full embedded finance transformation.
Fractional CFO work is useful when the constraint is senior judgment. It is not enough when the constraint is the finance operating system itself: broken definitions, weak close process, unreliable data, or a board pack nobody trusts.
That distinction determines whether the company needs a person, a function, or a rebuilt cadence.
Related terms
- Cash Runway — The number of months a company can operate before cash runs out at the current burn rate.
- Forecast Accuracy — The degree to which sales, revenue, cash, or delivery forecasts match actual results. It is a trust metric for boards and buyers.
- Office of the CFO — The finance operating system around reporting, forecasting, board cadence, unit economics, cash, systems, and decision support.
Where this gets applied
- Unit Economics — CAC payback, NRR, gross margin by segment, cohort analysis, paid-on-bookings vs. paid-on-cash.
- Financial Infrastructure — ARR waterfalls, deferred-revenue rules, board-pack standardization, FP&A architecture.
- Exit Readiness — Pre-LOI cleanup. Financial reporting normalization, contract hygiene, IP assignment review, customer-concentration mitigation.