A fractional CFO is an experienced finance leader who works with your company part-time, on an ongoing basis, for a fixed monthly fee. The word "fractional" describes the time, not the seniority: you get someone who has run finance for companies like yours, for the two to four days a month you actually need them.
What the work looks like
The job is forward-looking. A bookkeeper records what happened; a controller makes sure it was recorded correctly and on time; a CFO uses those numbers to decide what happens next. In a typical month that means:
Updating a 13-week cash forecast so you know your runway to the week
Maintaining a financial model that shows what a hire, a price change or a new location does to cash and profit
Producing the board or investor pack, and presenting it if you want them to
Preparing for a fundraise or loan: the model, the data room, the questions investors will ask
A standing monthly meeting to make the decisions that need numbers behind them
Between meetings, a good fractional CFO answers questions within a business day and treats a lender request or an investor email as their problem rather than yours.
How it differs from a controller or a bookkeeper
Think of it as a ladder. Bookkeeping produces accurate records. Controller work produces reliable, timely reporting and control over how money moves. CFO work turns that into plans and decisions. Companies rarely skip rungs successfully — a forecast built on unreconciled books is a forecast of nothing — which is why most CFO engagements begin with a quick check that the foundation is solid.
What it costs, and why
Fractional CFO engagements are usually priced as a flat monthly fee tied to scope and cadence rather than hours. Published ranges vary widely by market and stage; the logic is consistent: a fraction of what a full-time CFO would cost, in exchange for a fraction of their time, with none of the recruiting risk. The right comparison is not "CFO versus nothing" but "CFO versus the founder spending ten hours a week doing it badly".
Signs you are ready
A raise, loan, acquisition or sale is on the horizon in the next twelve months
You have a board or investors who ask questions your reports cannot answer
Cash is tighter than the P&L suggests, and you are not sure why
Hiring and spending decisions are made on instinct because there is no model
You are the de facto CFO, and it is costing you the work only you can do
If your books are not yet reliable, start there. Clean books are the prerequisite for everything above, and a good firm will tell you so on the first call.
Note: Demo article for the Folistead template. Replace with your firm's own perspective and, where relevant, jurisdiction-specific guidance.
