The fractional CFO category is the most mature of the fractional executive functions. Most $5M-$50M B2B companies use one. But scope and pricing vary enormously, and most companies hire the wrong type for their stage. Here's the honest breakdown.
Every founder who calls asking for a fractional CFO actually wants one of three different roles, and only one of them is a CFO. If books aren't clean and monthly close is a rolling disaster, what you want is a controller for $5-10K/mo. If board reporting is bad and you can't answer "what's our cash runway," what you want is a fractional CFO for $10-15K/mo. If you're raising a round or preparing an exit, what you want is a raise/exit-scarred CFO for $15-25K/mo. The mistake pattern I see monthly is a founder hiring the $18K/mo raise-track CFO to fix bookkeeping, then firing them in ninety days for "not delivering." They delivered exactly what a strategic CFO delivers. The founder just needed a controller.
Five categories of scope:
1. Strategic finance. Forecasting, financial planning, scenario modeling, KPI architecture.
2. Fundraising support. Investor materials, due diligence prep, term sheet negotiation support.
3. M&A and exit prep. Buy-side diligence, sell-side prep, deal structure analysis.
4. Board reporting and finance communications. Monthly/quarterly reports, board prep, audit committee support.
5. Finance team leadership. Hiring controller/staff accountant, building finance ops processes.
What it's NOT: bookkeeping (controller/bookkeeper), tax filing (CPA firm), payroll processing (HR/PEO).
Three different roles often confused:
• Bookkeeper ($30-$80/hr): records transactions, manages AP/AR, monthly close mechanics.
• Controller ($80K-$180K full-time, $5K-$10K/mo fractional): oversees accounting, prepares financial statements, manages audit, supervises bookkeepers.
• Fractional CFO ($8K-$20K/mo): strategic finance, forecasting, fundraising, board reporting, exit prep.
Most growing companies need ALL THREE roles filled in some form, different people, different skills, different price points. Hiring a fractional CFO to do bookkeeping is wildly inefficient; hiring a bookkeeper to do strategic finance produces bad strategy.
Five signals:
1. You're raising capital and need investor-grade financials and modeling
2. You're $3M+ ARR and your founder is doing financial work that's distracting from CEO duties
3. You need monthly board reporting and don't have a finance leader to produce it
4. You're preparing for M&A (buy or sell side)
5. Your finance function has scaled past 'controller + bookkeeper' but doesn't yet justify a full-time CFO
Typical fractional CFO engagement: $8K-$20K/month for 1-2 days/week. Variance:
• Stage: $3M-$10M ARR engagements lean toward $8K-$14K. $10M-$30M ARR engagements lean toward $14K-$20K.
• Scope: Standard CFO duties at lower end. Active fundraising or M&A work at higher end.
• Industry expertise: SaaS metrics, fintech finance, healthcare regulatory, operators with specific industry depth charge premium.
Compare to: full-time CFO at $250K-$400K base + equity ($350K-$550K all-in). Fractional is 30-50% of full-time cost.
Typical engagement structure:
• Weeks 1-4: Diagnostic. Review financial state, assess accounting hygiene, identify gaps, build initial model.
• Weeks 5-8: Foundation. Clean up reporting, establish forecasting rhythm, set up KPI dashboards.
• Weeks 9-12: Operating cadence. Monthly close discipline, board reporting templates, regular finance review with CEO.
• Quarter 2+: Strategic projects. Whatever's the immediate need, fundraising, M&A, restructuring, exit prep.
Fractional makes sense when: $3M-$30M ARR, defined need (raise, exit, restructure), can't yet justify $400K+ for full-time.
Full-time makes sense when: $30M+ ARR with complex finance, public-company prep, deep institutional finance knowledge needed permanently.
Pattern: most growing companies hire fractional CFO at $3M-$5M ARR, transition to full-time at $25M-$50M ARR. The transition is usually triggered by a strategic event (fundraise, M&A, IPO prep).
Book a 30-minute call with Bill to walk through your situation and what a fractional engagement would look like. Or start with the $1,500 AI Audit for a written roadmap.
Local fractional Chief Financial Officer coverage across the US. Same operator, same financial rigor, wherever your team sits.