What is a Fractional CFO?
A fractional CFO is a senior finance executive who serves as the chief financial officer for a company on a part-time, ongoing basis, typically one to three days a week, instead of as a full-time employee. Companies hire fractional CFOs when they need executive-level financial leadership, including strategy, fundraising, board reporting, capital planning, financial systems, and team building, but don't yet need or can't justify a full-time hire. The fractional CFO model gives growing companies access to a partner-level operator who has done the work before, for a fraction of the cost of a permanent CFO.
Part-time, ongoing engagement: Typically 1-3 days per week, lasting months to years, not a one-off project.
C-level scope: Strategy, capital structure, board reporting, FP&A, financial systems, and team development, not bookkeeping or accounting transactions.
Senior, experienced operator: A fractional CFO has typically served as a permanent CFO at one or more prior companies; the role is not entry-level.
Outside hire, embedded operator: The fractional CFO is not an employee but operates inside the company: sits in leadership meetings, reports to the CEO and board, and owns finance outcomes.
Bridges to a permanent hire: Many engagements transition to a full-time CFO over time, with the fractional CFO often leading the recruiting process.
Fractional CFO vs Full-Time CFO
Fractional CFO
Engagement: 1-3 days/week, scaled to your needs
Total cost: 30-75% of a full-time CFO, depending on usage
Time to value: weeks
Best for: $5M-$100M companies, transitions, crisis and growth stages
Full-Time CFO
Engagement: full-time, permanent role
Total cost: $300K-$600K+ fully loaded (salary, bonus, benefits, payroll taxes, PTO)
Time to value: 6-9 months (recruit + onboard)
Best for: $100M+ companies with stable, complex finance operations
Fractional CFO vs Interim CFO vs Outsourced CFO
These three terms are often used interchangeably but mean different things:
Model
Fractional CFO
Interim CFO
Outsourced CFO
What it means
Ongoing, part-time, embedded in the company's leadership. Strategic and operational. Months to years.
Full-time but temporary. Covers a specific gap (CFO departure, M&A, leadership transition). Typically 3-9 months.
Often the same as fractional, but sometimes refers to a more transactional model where finance work is delivered remotely with less embedded leadership.
When to hire a fractional CFO
Companies typically bring in a fractional CFO at one of these moments:
Preparing for a fundraise, refinancing, or PE recapitalization and need investor-ready financials, a clean data room, and a credible voice in the room
Scaling past $5M-$10M in revenue and outgrowing a controller-only finance function
Going through M&A: buyer-side diligence, seller-side preparation, or post-close integration
Replacing a departing CFO with no immediate full-time hire identified, or bridging to a recruited permanent CFO
Working through a turnaround, restructuring, or cash crisis where the company needs an experienced operator quickly
Read more about the benefits of Fractional CFO services. Exploring the other roles? See what a fractional COO, fractional CHRO, and fractional CIO do.
How 2Go Advisory Group delivers fractional CFO services
2Go Advisory Group has provided fractional CFO services since 1986, through its flagship practice CFOs2Go. Every engagement is led by a partner with 25+ years of C-level experience, with no junior staff assigned to client work.
What separates 2Go Advisory Group from a solo fractional CFO or a generalist firm is what happens when the engagement expands. If the CFO work surfaces an adjacent need, such as accounting cleanup, a recruited permanent hire, an interim COO, or an HR build-out, the 2Go Advisory Group partner brings in and personally manages other senior partners from within the firm. The client maintains one relationship; 2Go Advisory Group handles the rest. This integrated model, with fractional executive services, accounting, and recruiting under one accountable partner, is especially valuable for mid-market companies, professional services firms, and family-owned businesses that don't want to manage multiple vendors.
“People ask me what a fractional CFO actually does. I tell them: the same things a permanent CFO does — strategy, fundraising, capital planning, board reporting — but as an outside operator who's done the work before for dozens of other companies.
The fractional model works because most companies, most of the time, don't need a permanent CFO. What they need is an experienced operator they can trust.”
— Robert Weis, Founder and CEO, 2Go Advisory Group. Founded 2Go Advisory Group in 1986.
Has advised 60+ global companies on US market entry, M&A, and growth-stage finance.
Frequently asked questions
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Fractional CFO engagements typically cost 30 to 75 percent of a full-time CFO's total compensation, depending on how many days the company uses. For most mid-market companies, that is $8,000 to $25,000 a month, against $300,000 to $600,000 or more a year for a full-time CFO, fully loaded. Cost rises with the days per week, the complexity of the work, and active transactions such as a fundraise or acquisition, and drops back in steady-state months. 2Go Advisory Group scopes each engagement to the company's actual needs rather than selling fixed packages.
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To choose a fractional CFO, look for someone who has served as a full-time CFO before, has handled your situation, such as a fundraise, an acquisition, a turnaround, or a first financing, and knows the finance issues in your industry. Ask for references from companies your size, how many clients the CFO serves at once, and how the CFO will work with your controller or accounting team. Decide whether you need a solo practitioner or a firm that can add accounting, recruiting, or other executives as the engagement grows. At 2Go Advisory Group, every engagement is led by a partner with 25 or more years of C-level experience.
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Engagements range from a few months for a specific transition or transaction to several years for companies that do not plan to hire full-time. Many 2Go Advisory Group engagements run 18 to 36 months and end by transitioning into a recruited permanent CFO.
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Yes. Most 2Go Advisory Group fractional CFOs are hired specifically to lead an existing controller, bookkeeper, or finance staff, not to do the transactional work themselves. The fractional CFO sets strategy, owns board and investor relationships, and develops the team.
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An outsourced accounting firm handles transactional work such as bookkeeping, accounts payable and receivable, monthly close, and payroll. A fractional CFO handles strategic and leadership work including fundraising, financial planning and analysis, capital planning, and board reporting. Most growing companies need both. At 2Go Advisory Group, the fractional CFO can bring in the accounting team directly so the two functions stay coordinated.