Fractional CFO Cost: What You'll Actually Pay (and What You Get) as a Trades Business

If you run a roofing, HVAC, electrical, plumbing, or general contracting business doing somewhere between $2M and $20M, you've probably hit the wall where your bookkeeper and your gut aren't enough anymore. You're making decent money on paper but your bank account doesn't show it. That's usually when someone tells you to "get a CFO," and the first question you have is the right one: what does a fractional CFO cost? Let's walk through the real numbers, the common pricing models, and how to figure out whether it actually pays for itself in a business like yours.

What "Fractional" Actually Means

A full-time CFO at a company your size would run you $180,000 to $300,000 a year once you add salary, bonus, and benefits. Most trades businesses under $20M don't need that, and frankly can't justify it. You don't have 40 hours a week of CFO-level work.

Fractional just means part-time. You get someone with that senior financial experience for a slice of their time, a few days a month instead of every day. You're sharing the cost of an expensive brain with other businesses, so you pay a fraction of the full salary. That's the whole idea.

A fractional CFO is not your bookkeeper and not your tax accountant. The bookkeeper records what happened. The tax accountant files your return. The CFO looks forward: where's the cash going, which jobs actually make money, when can you afford that second crew, and why is profit on the P&L not showing up in your account.

Fractional CFO Cost: The Three Common Pricing Models

Fractional CFO rates fall into three buckets. Here's how each one tends to work in practice.

Monthly retainer. The most common setup for trades businesses. You pay a flat fee every month for an agreed scope of work. For a company under $20M, expect somewhere in the $3,000 to $10,000 a month range, depending on how messy your books are and how much hands-on work is involved. A simpler $3M operation might land at $3,000 to $5,000. A $15M company with multiple divisions and a lender breathing down its neck sits higher.
Hourly. Some firms bill by the hour. A typical fractional CFO hourly rate runs $150 to $400 per hour, with most experienced operators in the $200 to $300 range. Hourly can be fine for a one-off project, but it gets expensive fast and it punishes you for asking questions. Most owners do better on a retainer once the work is ongoing.
Project-based. A fixed price for a specific job, like building a cash flow forecast, getting your books ready for a bank loan, or setting up job costing. These run anywhere from $5,000 to $25,000 depending on scope. Good way to test the relationship before committing monthly.

When you compare fractional CFO rates between providers, make sure you're comparing the same scope. One firm's "$4,000 a month" might be two hours of phone calls. Another's might include a real monthly close, a 13-week cash forecast, and someone who actually answers when you call. Ask exactly what's delivered each month.

Why Hourly Looks Cheap and Usually Isn't

A $250 fractional CFO hourly rate sounds reasonable until you realize good financial work doesn't happen in 30-minute chunks. Building a forecast, digging into why your gross margin dropped, sitting in on a bank meeting, these take real time. And when you're on the clock, you start rationing the conversations that matter most.

The owners who get the most value treat their CFO like a partner they can call, not a meter that's running. That's why a flat monthly retainer usually wins for an ongoing relationship. You know your number, they know their scope, and nobody's counting minutes.

How to Think About the ROI

Here's the part that matters. The cost only makes sense next to what it returns. In a trades business, a fractional CFO usually pays for itself in one of a few concrete ways:

Finding the cash that's hiding. Say you're doing $8M and carrying $600,000 in receivables that should be $350,000. Tightening collections and billing frees up real money you already earned. That alone can dwarf a $5,000 monthly fee.
Killing the jobs that lose money. A lot of contractors have one or two job types they think are winners that are actually bleeding them. Real job costing finds those. Fixing your bid on a single recurring money-loser can be worth six figures a year.
Borrowing smarter. When a lender trusts your numbers, you get better terms. Shaving two points off a $1M line of credit is $20,000 a year.
Avoiding the cash crunch. The expensive mistakes (missing payroll, maxing the credit card to make payroll, taking a bad-terms loan in a panic) come from not seeing the wall before you hit it.

Run the math simply. If a CFO costs you $60,000 a year and helps you free up or keep $200,000 you'd otherwise have lost, that's not a cost. That's the best return in your business.

What to Do Before You Hire Anyone

You don't need a CFO to take the first step. Before you spend a dollar, get clear on the one thing that drives this whole decision: the gap between the profit on your books and the cash in your bank. If those two numbers are close, you may not need much. If they're far apart, that gap is exactly what a good CFO closes, and it tells you how much room there is to pay for one.