When to Hire a Fractional CFO, and What One Should Deliver

A growing business usually outgrows bookkeeping before it can afford a full-time chief financial officer. A fractional CFO fills that gap: an experienced finance leader who works with you a few days a month, for a fraction of the cost of a full-time hire. Here is how to tell when you need one and what a good one actually does.

Bookkeeper, controller, CFO: what is the difference?

• Bookkeeper: records transactions and reconciles accounts. Answers "what happened?"
• Controller: owns the month-end close, financial statements, internal controls, and accuracy. Answers "are the numbers right?"
• CFO: uses the numbers to plan. Builds forecasts, manages cash and financing, prices products, and advises on major decisions. Answers "what should we do next?"

You need all three functions, but not necessarily three people. A smaller business often uses an outsourced team that covers bookkeeping and the controller role, with a fractional CFO a few days a month.

Signs it is time

• Revenue is growing but cash is always tight. Growth consumes cash through inventory, receivables, and hiring. A CFO builds a 13-week cash forecast so you see shortfalls coming.
• You are raising money or taking on debt. Investors and lenders expect a financial model, clean reporting, and someone who can answer their questions.
• You do not know which products or customers are profitable. Margin analysis often shows that a large customer or service line is losing money.
• Big decisions are being made on instinct. Opening a second location, hiring a sales team, or buying equipment should be tested against a model first.
• The monthly close takes more than a few weeks, or financial statements arrive too late to be useful.
• You are planning an exit. Buyers pay for predictable, well-documented earnings.

What a fractional CFO delivers

• A monthly financial package with key metrics, not just a profit and loss statement
• A rolling 12-month budget and forecast, updated each month
• A 13-week cash flow forecast
• Unit economics: gross margin by product or service, customer acquisition cost, and lifetime value
• Pricing reviews
• Bank and lender relationships, including covenant monitoring
• Board and investor reporting
• Coordination with your tax advisor so financial plans and tax plans match

What it costs

A full-time CFO for a growing company often costs $250,000 or more a year with benefits and bonus. Fractional CFO engagements are typically priced as a monthly retainer based on scope and how many hours are needed, and they can be scaled up for a fundraise or an acquisition and back down afterward.

Getting value from the engagement

• Start with clean books. A CFO's forecasts are only as good as the historical numbers. If your books are behind, catch them up first.
• Agree on the three to five numbers that matter most for your business, and review them monthly.
• Set a meeting rhythm. A monthly review of results against budget, and a quarterly planning session, is enough for most companies.
• Bring them into decisions early, before a lease is signed or an offer letter goes out.

OICPA's business advisory team provides fractional CFO support, our management reporting service delivers the monthly financial package, and our outsourced accounting team covers the bookkeeping and controller work underneath it. For the early warning signs to watch, see monthly numbers that predict cash trouble.

Frequently asked questions

At what revenue does a fractional CFO make sense?

There is no fixed number, but many businesses start to benefit between $2 million and $20 million in revenue, or earlier if they are raising outside capital.

Can my CPA be my fractional CFO?

Often, yes, if the firm offers advisory services. Having tax and finance in one place helps, because planning decisions such as entity choice, owner pay, and equipment purchases affect both.

How is a fractional CFO different from a business coach?

A fractional CFO works directly in your financial data, builds the models, and is accountable for the numbers. A coach typically does not.

Do I need a CFO before raising a seed round?

Not always, but you need a credible financial model and clean books. A fractional CFO can build both for the raise and then step back.