What's the difference between a fractional CFO and a part-time CFO?

The terms are often used interchangeably, but there's a meaningful distinction. A part-time CFO typically works reduced hours for a single employer, functioning like a traditional employee. A fractional CFO operates as an external senior advisor serving multiple clients simultaneously, bringing cross-industry pattern recognition that a single-company hire rarely has.

How long does a fractional CFO engagement typically last?

Engagement length varies by need. Project-based work can run 60 to 120 days. Ongoing advisory retainers frequently run 12 to 36 months. The right answer depends on the company's stage, what triggered the engagement, and whether the goal is a specific outcome or continuous financial leadership.

Does a fractional CFO work with our existing accountant or bookkeeper?

Yes — and that's by design. A fractional CFO works with your existing financial team, not instead of it. At Pyek Financial, we regularly coordinate with outside CPAs, controllers, and bookkeepers to make sure the whole financial function operates as a coherent system rather than a set of disconnected services.

Fractional CFO Services: When a Bookkeeper Isn't Enough

HCAMag recently covered the broader rise of fractional leadership as a structural shift in how businesses access executive talent — not a trend, not a budget workaround, but a fundamentally different model for deploying senior expertise. In finance specifically, that shift is happening fast. Companies between $3M and $75M in revenue are discovering that the gap between a bookkeeper and a full-time CFO doesn't have to be a gap at all.

At Pyek Financial, we work with businesses across that range every day. What we see consistently is this: the companies that grow well aren't the ones that hired the most people — they're the ones that got the right financial thinking in the room at the right time.

What Does a Fractional CFO Actually Do That a Bookkeeper Doesn't?

A bookkeeper records what happened. A fractional CFO tells you what it means and what to do next.

That's not a knock on bookkeepers — accurate books are the foundation of everything. But bookkeeping is a backward-looking function. It closes the month, reconciles accounts, and keeps the records clean. A fractional CFO operates in forward-looking territory: cash flow forecasting, capital structure decisions, pricing strategy, lender relationships, and preparation for a transaction or capital raise.

When Should a Company Switch From a Bookkeeper to a Fractional CFO?

The answer isn't a revenue number, though $3M to $5M is typically where the need starts to crystallize. The real triggers are situational.

Watch for these:

You're making decisions by gut because the numbers aren't telling you anything. Your P&L exists but your team can't answer basic questions about unit economics, customer profitability, or runway.
You're approaching a bank for a credit facility, an SBA loan, or a line of credit and you don't have a financial model or a coherent story for the lender.
A private equity firm, strategic buyer, or investor has expressed interest and you've never been through a diligence process.
You've had a cash crisis — or a near-miss — that your income statement didn't predict.
You're about to make a major operational investment (new equipment, a second location, a key hire) and you don't know how it pencils out over 18 months.

Any one of these is sufficient reason to have a conversation. Two or more means you're already behind.

What Does Fractional CFO Services Cost, and Is It Worth It?

A full-time CFO at a lower-middle-market company costs $300,000 or more when you factor in salary, bonus, and benefits. For a $6M or $10M business, that's a heavy line item for a function you may need 15 to 20 hours a week, not 50.

Fractional CFO services typically run between $3,000 and $10,000 per month depending on scope, company complexity, and engagement intensity. That's real money — but it's a fraction of the full-time cost, and it comes without the hiring risk, the benefits burden, or the organizational complexity of a senior executive.

Pyek Perspective

The question business owners usually ask is "can we afford a fractional CFO?" The better question is "what decisions are we making right now without one, and what are those decisions costing us?" Bad pricing models, bloated cost structures, under-leveraged credit facilities — these don't show up as line items on a P&L. They show up as lost margin and missed opportunity. That's the real cost of waiting.

How Fractional CFO Engagements Work in Practice

There's no standard template, and you should be skeptical of firms that offer one. The right engagement structure depends on what the business actually needs.

Some engagements are project-based: a 90-day sprint to build a financial model, prepare for a capital raise, or clean up a chart of accounts before a sale process. Others are ongoing retainer arrangements where the fractional CFO serves as a continuous financial partner — attending leadership meetings, reviewing monthly financials, advising on major decisions, and managing the relationship with the company's bank or accounting firm.

At Pyek Financial, we typically start with a financial consulting scoping conversation to understand where the business is, where it's going, and where the financial function is failing it. From there, the engagement is built around the actual gaps — not a standard package. That's the only way to deliver real value rather than just deliverables.

The fractional CFO model also works well alongside existing accounting and bookkeeping functions. The fractional CFO doesn't replace the bookkeeper — it elevates what the bookkeeping output actually means for the business. Clean data going into a smart model produces decisions. Clean data sitting in a folder produces nothing.

You've Already Paid the Cost of Not Having One

Every month a growing business operates without strategic financial leadership is a month of decisions made on incomplete information. Some of those decisions are recoverable. Some aren't.

If your business is between $3M and $75M in revenue and your financial function is still purely transactional, the risk isn't that you'll spend money on a fractional CFO. The risk is what's already slipping through without one.

Schedule a discovery call with Pyek Financial and we'll tell you within 30 minutes whether a fractional CFO engagement makes sense for your business right now — and what it would actually look like.