Business owners call me about once a month asking if I'm a fractional CFO. I'm not. But the question is reasonable, because the word "fractional" is doing a lot of work these days and almost nobody explains the difference.
Here it is, from someone who has hired CFOs, worked alongside them for 30 years, and does the other job.
The Two Roles Solve Different Problems
A fractional CFO manages your financial operations. Bookkeeping oversight, financial reporting, cash flow management, budgeting, banking relationships, audit prep. If your books close late, your margins are a mystery, or your cash position surprises you every month, that is CFO work. It is a finance function, delivered part time.
A fractional strategic advisor works on business direction and the transactions that direction produces. Growth planning, capital raises, deal structure, acquisitions, corporate architecture, investor materials. If you are deciding whether to open a second location, raise $2 million, buy a competitor, or restructure three business lines into a holding company, that is advisory work.
The simplest test I can offer: a CFO tells you what your numbers are. An advisor helps you decide what to do about them, and then builds the documents and deals that decision requires.
Where the Confusion Comes From
Both roles are senior. Both are part time. Both touch your financials. And plenty of fractional CFOs market themselves with strategy language, because "strategic finance partner" sells better than "I close your books."
But watch what happens when the work gets specific. Ask a fractional CFO to run a capital raise and most will build you a projections spreadsheet, then stop. The raise itself, positioning the business, structuring the offering, preparing the private placement memorandum, negotiating with investors, sitting in the room when the hard questions come, is not their trade. It was never supposed to be.
I have raised more than $10 million in investor capital across my own ventures. I have prepared Regulation D offerings, negotiated term sheets from both sides of the table, and structured multi-entity holding companies. That is a different skill set from financial operations, and pretending otherwise serves nobody.
The reverse is also true. If you ask me to manage your monthly close and your payroll provider, I will tell you no and refer you to someone who does that well. An advisor who claims to also be your accounting department is spread too thin to be either.
The Test: Which Problem Is Keeping You Up
Try sorting your current worry into one of these two lists.
CFO problems: I don't trust my numbers. My books close 45 days late. I don't know my margin by product line. Cash gets tight and I never see it coming. My bank wants reporting I can't produce. Taxes are a scramble every year.
Advisory problems: Revenue is growing but the structure underneath it isn't. I need capital and don't know how to raise it or what my business is worth. Someone offered to buy me and I don't know if the number is fair. I'm running three business lines through one LLC and it's starting to feel dangerous. I want to franchise, or expand, or exit in five years, and I don't have a plan that survives contact with an investor.
Both lists are real. But they are different jobs, and hiring the wrong one wastes a year and a lot of money.
When You Need Both
Sometimes the answer is genuinely both, in sequence.
A $5M pet care operator I worked with is a good example. The business ran three lines through a single LLC. The bookkeeping was handled, the numbers were known. What the business lacked was structure: liability separation, tax strategy, and an entity framework that could support franchise expansion. That engagement was advisory work: a five-entity holding company structure, operating agreements, an S-Corp election strategy, and a corporate foundation the business could grow into. It surfaced $40K to $60K in annual tax overpayment along the way.
After a restructuring like that, ongoing CFO support makes sense. Five entities produce more accounting complexity than one. The advisor builds the architecture. The CFO runs the machine inside it.
The sequence matters. Structure first, then operations. A CFO cannot fix an entity problem, and an advisor should not be doing your monthly close.
What Each One Costs
Fractional CFOs typically run $3,000 to $10,000 a month depending on complexity and time commitment. It is an ongoing operational relationship. You are paying for continuity.
Advisory work prices differently because it is tied to outcomes, not hours. A defined project, a corporate restructuring, a capital raise, an exit preparation, carries a defined fee. Ongoing strategic advisory runs as a monthly retainer. I price on value, not time, and I put the number in writing before any work starts.
One warning that applies to both: anyone in either seat who leads with an hourly rate is telling you how they think about the work. Senior judgment does not meter well by the hour.
How to Decide
Ask yourself three questions.
First, is my problem operational or directional? Late books and murky margins are operational. Raises, deals, structure, and growth sequencing are directional.
Second, what is the next major event in this business? If the answer is a capital raise, an acquisition, a franchise launch, or a sale, you need someone who has done those transactions, not someone who reports on them afterward.
Third, has the person I'm considering actually done the thing I need? Ask a fractional CFO how many raises they have closed. Ask an advisor whether they can read a balance sheet under pressure. The answers sort people fast.
I run Vorsant Advisory as a solo practice for owners of businesses doing $2M to $20M in revenue. I do the advisory job: strategy, capital, and deal structure. When a client needs the CFO job, I say so and help them find the right one. Knowing where the line sits is part of the work.
If you're not sure which side of the line your situation falls on, that's a 20 minute conversation. I'll tell you honestly, including when the answer is "you don't need me, you need a bookkeeper."