Fractional CFO cost ranges from USD 3,000 to USD 20,000 per month depending on scope, complexity, and industry. That range is wide because the work is scoped to the business. Here is how pricing actually works, what drives it, and how to measure ROI honestly against a full-time hire.
What a Fractional CFO Fee Actually Buys
What Drives the Fee: Complexity, Not Revenue
The myth is that fractional CFO fees scale with revenue. They do not. A $10M single-entity SaaS company with clean books is often cheaper to serve than a $4M multi-entity cross-border product company with inventory, intercompany eliminations, and sales tax nexus in 12 states.
Real fee drivers: number of legal entities, number of jurisdictions (federal, state, provincial), complexity of the revenue model (subscription, usage, services, inventory), quality of current bookkeeping, investor and lender reporting requirements, and pace of hiring or transactions.
The Full-Time CFO Comparison
A full-time CFO at the mid-market level (USD 5M to USD 30M revenue) carries a fully loaded cost of USD 250,000 to USD 500,000: base salary USD 200,000 to USD 350,000, bonus of 15% to 30%, equity of 1% to 3%, benefits, taxes, and recruiting fees. Actual cash outflow in year one is often USD 300,000+.
A fractional CFO at USD 6,000 per month is USD 72,000 per year. A deeper fractional engagement at USD 12,000 per month is USD 144,000 per year. At the same quality of work, the fractional model saves USD 100,000 to USD 200,000 per year for most mid-market businesses.
When Fractional Stops Making Sense
Fractional makes sense until the business either outgrows the scope (roughly USD 30M to USD 50M revenue for most operators) or needs the CFO in the building full-time (every day, every meeting). At that point the right move is to hire, and the fractional firm helps with the search and handoff.
We routinely advise clients to transition to a full-time CFO when the business crosses certain thresholds: preparing for an IPO, integrating a significant acquisition, or running a finance team of 5+ people.
How to Measure ROI on a Fractional CFO
Three ROI buckets to track: cash released (working capital improvements, collections acceleration, tax savings, interest savings on better credit facilities), margin improvement (pricing analysis, channel mix, cost structure), and capital raised or saved (better diligence preparation, more favorable debt terms, equity raised at higher valuations).
Our average first-year client sees cash release of 2x to 5x the fee and margin improvement worth another 1x to 3x. The ROI is usually obvious by the end of month three.
Red Flags in Fractional CFO Pricing
Red flag 1: a flat fee with no scope document. Scope creep kills the engagement and the firm shifts work to junior staff to maintain margin. Red flag 2: extreme hourly rates without senior involvement; you pay for the partner and get the analyst.
Red flag 3: no exit provisions or month-to-month flexibility after the initial period. Red flag 4: the firm cannot name the lead CFO who will be in your meetings. We publish the lead CFO for every engagement.
What to Ask Before You Sign
Ask for the named lead CFO, the scope document, the deliverables list, the cadence (weekly or monthly meetings, monthly reporting package, quarterly planning), the escalation path, and the exit terms. A firm that cannot answer all of those in writing is not ready to run a senior finance function for your business.
The Hidden Upside: Cross-Functional Access
A fractional CFO retainer with TYM also gives access to our tax, controllership, and consulting teams without separate engagements. A fundraise sprint that would require adding a tax advisor, a diligence specialist, and a modeling analyst is covered inside the standing relationship.
Clients often tell us the underappreciated value is not the CFO hours; it is the ability to pull in a senior tax or transaction specialist on 48 hours' notice.
Pricing Models: Retainer, Project, and Hybrid
Most TYM fractional CFO engagements are monthly retainers against a defined scope. Project engagements exist for specific initiatives (90-day diagnostic, fundraise support, audit readiness, M&A sell-side prep) at fixed fees. Hybrid engagements combine a smaller monthly retainer with project fees for specific events.
The retainer model works best for businesses that need ongoing finance leadership. The project model works for businesses that have a clear, bounded need. We help clients pick the right structure at the start and revisit it annually.
What the First Ninety Days Look Like
First 30 days: financial diagnostic, chart of accounts cleanup, KPI definition, and a 90-day plan. First 60 days: monthly reporting package redesigned, 13-week cash forecast live, board pack template produced. First 90 days: variance analysis against plan, cash release opportunities documented, and quarterly planning cadence in place.
The 90-day plan is the single best deliverable we produce early, because it converts every conversation about priorities into an operating plan with accountability.
Case Pattern: The $12M Services Firm Without a Forecast
A recent engagement: a $12M professional services firm with stable revenue but unpredictable cash. The CEO reviewed financials quarterly. There was no rolling forecast, no board pack, no KPI dashboard, and no 13-week cash view. Our fractional CFO installed all four inside 90 days.
The resulting discipline surfaced $600K in trapped working capital (aging receivables, one stalled project, and vendor term extensions that had never been requested). The CFO engagement cost $84K annually. The first-year cash release alone returned seven times the fee, before the margin and tax improvements that followed.
Can I start with a fixed-price diagnostic?
Yes. TYM offers a 30-day diagnostic at a fixed fee that produces a 90-day plan. Clients either engage the full CFO scope or walk away with a usable roadmap.
How is the engagement billed?
Monthly fixed fee against a defined scope. Additional work (transactions, fundraising sprints) is priced separately before it starts.
Can I scale hours up and down?
Yes. Most of our engagements move between a base level and a higher scope around specific events (fundraise, audit, transaction).
What is the minimum engagement length?
Typically 90 days to cover the diagnostic and initial build. After that, most engagements are month-to-month.