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 — 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, 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, ongoing
Total cost: 25-40% of a full-time CFO
Time to value: weeks
Best for: $5M-$100M companies, transitions, growth stages
Full-Time CFO
Engagement: full-time, permanent role
Total cost: $250K-$500K+ in salary, equity, and benefits
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
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 — no junior staff assigned to client work.
What separates 2GO from a solo fractional CFO or a generalist firm is what happens when the engagement expands. If the CFO work surfaces an adjacent need — accounting cleanup, a recruited permanent hire, an interim COO, an HR build-out — the 2GO partner brings in and personally manages other senior partners from within the firm. The client maintains one relationship; 2GO handles the rest. This integrated model — 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 the 2GO 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 25-40% of a full-time CFO’s total compensation. For most mid-market companies, that translates to $8,000-$25,000 per month depending on scope, complexity, and the partner’s background. 2GO scopes each engagement to the company’s actual needs rather than selling fixed packages.
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Most fractional CFO engagements are 1-3 days per week, with the exact cadence flexing based on what’s happening in the business. During a fundraise or M&A process, the time commitment may scale up temporarily. During steady-state operations, it may drop.
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Engagements range from a few months (for a specific transition or transaction) to several years (for companies that don’t plan to hire full-time). Many 2GO engagements run 18-36 months and end by transitioning into a recruited permanent CFO.
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Yes. Most 2GO 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 — bookkeeping, AP/AR, monthly close, payroll. A fractional CFO handles strategic and leadership work — fundraising, FP&A, capital planning, board reporting. Most growing companies need both. At 2GO, the fractional CFO can bring in the accounting team directly so the two functions stay coordinated.