Quick Answer

Should I hire a fractional CFO or a full-time CFO?

Hire a fractional CFO when CFO-level questions arise weekly rather than daily, typically between $2M and $50M in revenue, at $3,000 to $15,000 per month. Hire a full-time CFO when the role is genuinely full: usually above $30M to $50M in revenue, with a finance team to lead, at $200,000 to $400,000 fully loaded. Choose outsourced accounting first if the underlying financial records are not yet reliable.

Key Takeaways

A fractional CFO costs roughly 15 to 40 percent of a full-time hire.
A fractional CFO is productive in 2 to 4 weeks; a full-time search takes 4 to 9 months.
Above roughly $30M revenue, or with a finance team of five or more, full time usually wins.
If nobody trusts last month's margin, fix accounting before hiring any CFO.

Last reviewed September 7, 2026 by the Sataurius advisory team.

Fractional CFO vs Full-Time CFO vs Outsourced Accounting

Comparison of fractional CFO, full-time CFO, and outsourced accounting across cost, commitment, output, ramp time, and fit
	Fractional CFO	Full-Time CFO	Outsourced Accounting
Typical annual cost	$36,000 to $180,000	$200,000 to $400,000 fully loaded	$30,000 to $120,000
Commitment	2 to 8 days per month	Full time, single employer	Continuous transaction processing
Primary output	Forecasting, strategy, board reporting	All of the above, plus daily operating leadership	Accurate books and financial statements
Time to productive	2 to 4 weeks	4 to 9 months including search	2 to 6 weeks
Best fit revenue	$2M to $50M	$30M+ or pre-IPO	Any, as a foundation layer
Main risk	Limited availability between sessions	Paying for capacity you cannot fill	No forward-looking guidance at all

Figures reflect typical U.S. market ranges in 2026. Our fractional CFO cost page breaks the pricing down by engagement model.

Choose a Fractional CFO When

Revenue sits roughly between $2M and $50M and CFO-level questions arrive weekly, not daily.
You need senior judgment within a month, not after a six-month executive search.
The immediate need is a specific event: a raise, a lender package, a transaction, or a systems change.
You already have accounting staff and what is missing is direction rather than capacity.
Budget for a full-time hire would consume a disproportionate share of operating profit.

Choose a Full-Time CFO When

The finance function has five or more people who need day-to-day leadership.
Revenue exceeds roughly $30M to $50M, or the structure spans several entities and jurisdictions.
An IPO, a large regulated transaction, or institutional reporting obligations are in view.
The CFO needs to be in the operating rhythm of the business every day, not at set intervals.
The role is genuinely full: there is more than a full week of CFO-level work every week.

Choose Outsourced Accounting When

If nobody can tell you with confidence what last month's margin was, the problem is upstream of strategy. Fix the ledger first. A CFO built on unreliable data produces confident forecasts from bad inputs, which is worse than no forecast at all.

In practice many businesses need outsourced accounting or a fractional controller for a quarter, then add CFO-level support once the numbers hold. The controller vs CFO guide works through the sequencing.

FAQ

Frequently Asked Questions

What is the difference between a fractional CFO and a full-time CFO?

The scope of the role is broadly the same; the commitment and the cost are not. A fractional CFO works a defined number of days per month across several clients, typically for $3,000 to $15,000 per month. A full-time CFO is a single employee dedicated to one business, typically costing $200,000 to $400,000 fully loaded including benefits, bonus, and often equity.

Is a fractional CFO cheaper than a full-time CFO?

In direct cost, almost always. A fractional engagement costs roughly 15 to 40 percent of a full-time hire. The more useful comparison is cost per decision supported: below about $20M in revenue most companies cannot generate enough CFO-level work to occupy a full-time executive, so the additional salary buys capacity rather than output.

When should a company hire a full-time CFO instead?

When the role stops being episodic. Common thresholds are revenue above roughly $30M to $50M, a finance team of five or more that needs day-to-day leadership, an imminent IPO or complex multi-entity structure, or a business where the CFO must be in the operating rhythm daily rather than at set intervals.

What about outsourced accounting instead of a CFO?

Outsourced accounting solves a different problem. It delivers accurate transaction processing, reconciliations, and financial statements. It does not deliver forecasting, capital strategy, pricing judgment, or board-level decision support. Many businesses need accounting fixed first and mistake that for needing a CFO.

Can a fractional CFO become a full-time CFO?

Sometimes, and more often a fractional CFO helps define and recruit the full-time role. Having someone who has run the function part-time write the job specification, set the reporting infrastructure, and interview candidates materially improves the quality of the eventual hire.

How many days a month does a fractional CFO work?

Typically two to eight days per month. Advisory-only engagements sit at the lower end with a monthly review and a standing call. Embedded engagements, where the CFO also manages the accounting team and owns board reporting, sit at the upper end.

Fractional CFO vs Full-Time CFO vs Outsourced Accounting.