“How much does a fractional CFO cost?” is usually the first question and the hardest one to get a straight answer to. Search around and you'll see everything from $150 an hour to $20,000 a month, which tells you nothing useful. The honest answer: it depends on your stage, how complex your finances are, and—critically—how the firm prices the work. Here is how to read a quote so you know whether you're paying for a title or for outcomes.
The actual range
For most small and growing businesses, fractional CFO engagements land between $2,500 and $12,000 per month, with the majority sitting in the $4,000–$8,000 band. Roughly by stage:
- Under $1M revenue: ~$1,500–$3,000/month. Often this is really controller-plus work with light CFO oversight.
- $1M–$5M revenue: ~$2,500–$5,000/month. Monthly reporting, forecasting, and a real financial partner in the room.
- $5M–$20M revenue: ~$4,500–$8,500/month. More complexity—multiple entities, board reporting, financing.
- Seed to Series A startups: ~$3,500–$7,500/month, driven more by fundraising and investor-reporting needs than by revenue.
The consistent theme: price tracks complexity and the frequency of support, not just revenue. A simple $8M business can cost less to support than a messy $3M one with three entities and a fundraise in progress.
The three pricing models—and which to trust
The monthly number matters less than how it's structured. There are three common models, and they create very different incentives.
Hourly
Rates typically run $150 to $400 an hour, with the top end reserved for genuine former Fortune 500 or PE-portfolio CFOs. Hourly looks flexible, but it has a built-in problem: it prices time, not results. You end up watching the clock, hesitating to send the quick question that would actually help, and the firm has a quiet incentive to spend more hours, not fewer. It's fine for a narrow, well-defined task. It's a poor way to buy an ongoing financial partner.
Project-based
For a specific deliverable—a fundraising model, due-diligence prep, a one-time cleanup—project pricing of $5,000 to $35,000 depending on scope is reasonable and easy to evaluate. Use it for defined, bounded work. It doesn't cover the ongoing rhythm of a close, reporting, and forecasting.
Fixed monthly fee
A flat monthly fee for a defined scope is, for most companies, the model that aligns everyone. You know your number, the firm is paid for outcomes rather than hours, and asking a question costs you nothing extra—so you actually ask. This is the model we use at Finsightic, because a founder should never have to decide between getting an answer and running up a bill.
The pricing model tells you what you're really buying. Hourly buys you time. Fixed monthly buys you a finance function that wants your close done fast and your questions answered.
What the fee should actually include
A monthly fractional CFO engagement worth paying for generally covers:
- A monthly close and reporting package leadership can actually read—not just exported statements.
- A rolling forecast and cash/runway view, updated against real actuals.
- Board and investor reporting if you're funded or raising.
- Decision support—pricing, hiring, spend, financing—when the questions come up, not quarterly.
- Oversight of the bookkeeping and controls underneath, so the numbers you're deciding on are right.
If a quote is vague about deliverables, that's the real red flag—more than the price. Cheap and undefined is how you end up paying monthly for a title and a standing call.
Why it's cheaper than a full-time hire
A full-time CFO in the US is a $250K–$450K+ commitment once you load salary, bonus, benefits, recruiting fees, and equity. A fractional engagement runs 60–80% less because you're buying the seniority in the slice you actually need. Most companies under ~$20M in revenue don't have 40 hours a week of genuine CFO-level work—they have 5 to 15, plus a strong controller and clean books underneath. Paying full-time rates for part-time need is the more expensive mistake.
How to read a quote
- Ask what's fixed vs. variable. A flat fee for a written scope beats an hourly estimate you can't predict.
- Get the deliverables in writing. Close timeline, report package, forecast cadence, meeting rhythm.
- Confirm who does the work. A senior partner on the strategy and a controller/bookkeeper on the mechanics is the right structure—and the reason fixed pricing can stay reasonable.
- Match the tier to your need. Pre-$1M rarely needs a $7K/month CFO; it needs clean books and light oversight. Overbuying is as costly as underbuying.
The right question isn't “what's the cheapest fractional CFO?” It's “what will this actually get done each month, and is the price fixed so I'm never penalized for asking?” Answer that and the cost stops being a mystery.
Finsightic runs finance and operations on a fixed monthly fee—bookkeeping through fractional CFO, remote and US-based—so the number is predictable and the scope is written down. You can see our pricing or read how the fractional CFO engagement works.