Published on
March 27, 2026
Fractional CFO: Cost, Services, and When You Need One
A plain-English guide to fractional CFO pricing, services, and fit, with a worked ROI example and a vetting checklist you can use this week.
- A fractional CFO typically costs $3,000-$15,000 a month or $175-$450 an hour, versus $250,000-$500,000+ a year for a full-time hire [1]
- The role covers strategy, forecasting, and reporting, not bookkeeping, tax filing, or audit execution
- What you need changes by revenue stage: most businesses outgrow fractional somewhere between $50M and $75M in revenue or 5+ finance staff [2]
- A good engagement has a defined 30/60/90-day deliverable list, not just vague 'strategic support'
- You don't need a CPA to be a great fractional CFO, but you do need someone who's run the reporting and board decks themselves [3]
1. What is a fractional CFO, exactly?
A fractional CFO is an experienced finance executive who works for your company part-time, on contract, instead of full-time on payroll. You get the same strategic work a full-time CFO would do, cash flow management, forecasting, KPI reporting, fundraising and M&A support, at a fraction of the cost, because you're only paying for the hours or scope you actually need [4][5].
They might be an independent consultant or an employee of a CFO advisory firm. Either way, a real fractional CFO has sat in the full-time seat before, or held the most senior finance role at a company, managing a team and reporting to ownership or a board [4]. That's what separates them from a bookkeeper with a fancy title. They bring judgment built from having made these calls before, not just a spreadsheet template.
Is fractional CFO a real thing, or a repackaged consultant? It's real, and it's grown fast since 2020, mostly because remote work made it normal to hire senior finance talent without geography limiting the pool [5]. Most engagements run as an ongoing monthly retainer rather than a one-off project, which is what makes it different from hiring a consultant for a single report.
2. What does a fractional CFO actually do day to day?
A fractional CFO builds and owns your forward-looking financial picture: cash flow forecasts, budgets, KPI dashboards, pricing models, and board or investor reporting. They sit with your leadership team to turn financial data into decisions about hiring, pricing, debt, and growth, not just to close the books [6][7].
A standard retainer typically includes a 13-week cash flow forecast, a driver-based financial model, monthly close oversight, a KPI scorecard, and a recurring strategy call with ownership [8]. From there the work branches: capital raise prep, M&A due diligence support, debt negotiation, pricing strategy, board deck creation, and systems work like implementing a new FP&A tool.
What a fractional CFO does not do
They don't do your bookkeeping, file your taxes, or run an audit. A bookkeeper records transactions day to day, a controller verifies accuracy and produces reliable reporting, and a CFO uses that reporting to set strategy [9]. If a CFO firm is also doing your monthly reconciliations, you're either overpaying for CFO-level time on low-level work, or you've hired a controller wearing a CFO label. Know which one you actually need before you sign anything.
3. How much does a fractional CFO cost?
Fractional CFOs typically charge $175 to $450 an hour, or $3,000 to $15,000 a month on retainer, with most companies landing between $5,000 and $7,500 a month [1]. Project-based engagements, for a fundraise prep or a financial model build, usually run $15,000 to $75,000 depending on scope [10]. Compare that to $250,000 to $500,000+ a year, all-in, for a full-time CFO once you add bonus and benefits [1].
| Model | Typical cost | Best for | What's included |
|---|---|---|---|
| Hourly | $175-$450/hr [1] | Occasional advisory, board prep | Specific deliverables, ad hoc questions |
| Monthly retainer | $3,000-$15,000/mo, most pay $5,000-$7,500 [1] | Ongoing strategic partner | Cash forecast, KPI dashboard, monthly call, close oversight |
| Project-based | $15,000-$75,000 [10] | Fundraise prep, model build, one-time turnaround | Defined scope and end date |
| Full-time hire | $250,000-$500,000+/yr all-in [1] | 5+ person finance team, daily leadership needs | Full-time presence, direct management |
Fractional CFO pricing by engagement type
If you're a $5M to $15M business, expect the all-in annual number, including accountant and controller-level coverage alongside CFO guidance, to land around $70,000 to $160,000 a year [11]. That's the realistic comparison point, not just the hourly rate.
4. Is a fractional CFO worth it? (A worked example)
Yes, for most companies under $50M in revenue, the math favors fractional. Consider a $15M revenue services company weighing a $250,000-a-year full-time CFO against a $6,000-a-month fractional engagement, about $72,000 a year. The fractional path saves roughly $178,000 in year one alone, money that can fund a sales hire or extend runway.
Add onboarding time: a full-time hire typically takes three to six months to ramp to full productivity, which can push the real first-year cost of a CFO hire past $400,000 once you count the ramp period and recruiting [11]. A fractional CFO, by contrast, usually starts producing a cash forecast and KPI dashboard inside the first 30 days, because that's the standard deliverable set most firms build their first month around [8].
The owner in this scenario gets the same cash flow visibility, the same board-ready reporting, and someone to run scenario analysis on a pricing change or a new hire, at a quarter of the cost and without a six-month ramp. That's the case for fractional at this revenue size. It stops being obvious once you cross into territory covered in section 7.
5. Fractional CFO vs controller vs bookkeeper vs full-time CFO: which do you need?
Match the role to the problem, not the title. If you need accurate books, hire a bookkeeper. If you need reliable monthly reporting you can trust, hire a controller. If you need someone setting financial strategy and talking to your board or investors, that's a CFO, fractional or full-time [9].
An outsourced accounting firm usually bundles bookkeeping and controller work without the strategic layer. If your reporting is fine but your decisions feel like guesswork, you don't need more bookkeeping, you need a fractional controller conversation or a CFO, depending on what's actually missing.
6. What should you expect in the first 90 days?
A good fractional CFO engagement has a defined deliverable timeline, not just vague 'strategic guidance.' In month one you should get a 13-week cash flow model and a cleaned-up chart of accounts. By month three, a KPI dashboard and board-ready reporting package. By month six, a full budget and a forward-looking plan tied to your growth goals.
- Days 1-30: Diagnostic review, chart of accounts cleanup, 13-week cash flow forecast built
- Days 31-60: KPI scorecard by service line or division, first board or owner reporting package delivered
- Days 61-90: Annual budget draft, scenario models for hiring or pricing decisions, recurring reporting cadence set
If 90 days in you still don't have a cash forecast and a reporting cadence you understand, that's a red flag, not a slow start.
7. When do you outgrow fractional and need a full-time CFO?
Most businesses are ready to move from fractional to full-time when revenue consistently exceeds $50M to $75M, when the finance team grows past five people needing daily management, or when complexity requires someone in the seat 40+ hours a week [2]. M&A activity, an IPO track, or multiple simultaneous capital raises are also signals that part-time attention isn't enough anymore.
The transition doesn't have to be abrupt. Many fractional CFOs help recruit and onboard their own full-time replacement, staying on for a transition period to hand off institutional knowledge. That's worth asking about before you sign an engagement, not after you need the exit.
Does this change by stage or industry?
At $2M to $5M, the work is mostly building basic visibility: a chart of accounts that means something, a cash forecast, and pricing clarity. At $10M to $25M, it shifts toward KPI systems, debt and banking relationships, and prepping for a raise or a sale. At $25M to $50M, you're looking at board-level reporting, M&A readiness, and potentially a transition plan toward a full-time hire. A SaaS company needs different metrics (net revenue retention, CAC payback) than a services or home-service business (job-level margin, technician utilization, seasonality planning), so ask any candidate what metrics they'd build for your specific model.
8. How do you vet a fractional CFO before you sign?
Ask about their specific industry experience, what they'd deliver in the first 90 days, whether they've actually led a fundraise or sale process, and what happens if the engagement isn't working. A firm with a bench of controllers and analysts behind the lead CFO can usually flex capacity faster than a solo independent consultant.
- How many years of senior finance leadership do you have, and in what size companies?
- Have you led or supported a fundraise, debt negotiation, or sale process?
- What will I have in my hands after 30, 60, and 90 days?
- Do you work solo, or does your engagement include controller/analyst support?
- What's your experience with my industry or business model specifically?
- Can I talk to two current or former clients?
- What tech stack do you typically implement (QuickBooks apps, FP&A tools)?
- What's the notice period and what does ending the engagement look like?
- How many other clients are you serving at the same time?
- Who actually does the work, you, or someone I haven't met yet?
9. Firm vs independent fractional CFO: which should you pick?
A firm gives you a bench of backup talent and a consistent process, but can cost more and sometimes feels less personal. An independent consultant is often cheaper and more hands-on, but has a capacity ceiling and no backup if they're unavailable or the relationship doesn't work out.
| Factor | CFO firm | Independent consultant |
|---|---|---|
| Cost | Typically higher, covers team overhead | Often lower, one person's time only |
| Capacity/backup | Analysts and controllers can flex in | Limited to their own bandwidth |
| Consistency | Standardized process and tools | Varies by individual, often more flexible |
| Risk if they leave | Firm reassigns another lead | You start the search over |
Firm vs independent fractional CFO
If you want continuity and a built-in team, lean firm. If you want one person who knows your business cold and you're comfortable with the single point of failure, an independent can work well, especially for simpler engagements. If you'd rather not build this by hand, Dear CFO builds it from your QuickBooks.
Conclusion
A fractional CFO isn't a cheaper version of a full-time hire, it's a different shape of the same job, scoped to what you actually need right now. For most companies between $2M and $50M in revenue, that means real cost savings and faster time to value than hiring full-time. The decision gets easier once you're clear on what you need, strategy versus bookkeeping, and what stage you're at. Use the pricing table, the vetting questions, and the 30/60/90-day checklist above on your next call, and you'll know within twenty minutes whether the person on the other end has actually done this before.
FAQs
Can a CFO get fired?
Yes. A fractional CFO works on contract, so ending the relationship is usually simpler than firing a full-time employee, typically just notice per the engagement terms. Ask about the notice period and exit process before you sign, not after you want out.
Can a fractional CFO work remotely?
Yes, and it's now the norm. Remote work became standard for fractional CFOs after 2020, letting companies hire the best fit regardless of location [5].
Do you need a CPA to be a fractional CFO?
How can I become a fractional CFO?
Build senior, in-house finance leadership experience first, most clients look for 8 to 15 years, and over 70% of fractional consultants have 15+ years [8]. Then build a standard service offering (13-week cash forecast, driver-based model, KPI scorecard) and a track record you can point to with real clients.
How much does a fractional CFO charge per hour?
Expect $175 to $450 an hour in 2025, depending on experience and scope [1]. Most ongoing work is billed as a monthly retainer rather than pure hourly, since retainers give both sides more predictability.
How much does a fractional CFO cost per month?
How much does a fractional CFO make (salary)?
Fractional CFOs typically earn $100,000 to $300,000+ annually depending on experience, niche, and the size of their client portfolio [12], since most run multiple client engagements at once rather than one salary.
Is fractional CFO a real thing?
Yes, it's a well-established engagement model, not a workaround title. It's grown significantly since 2020 as remote work made senior finance talent accessible on a part-time, contract basis [5].
About the author
Partner, Phoenix Strategy Group
Ethan Lu is a Partner at Phoenix Strategy Group, where he works as a fractional CFO helping founder-led companies maximize their exit value. He currently oversees more than $200M in client enterprise value and has been part of multiple eight-figure exits. Before PSG he was an asset manager and investor for a San Diego family office, where he sat on the investment committee for more than $1B in assets. A data scientist by training, he holds a B.S. in Mathematics with a minor in Accounting from UC San Diego.
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