The retainer model is the most common structure for ongoing outsourced CFO relationships. You pay a fixed monthly fee for a defined scope of work, which typically includes regular financial review and analysis, cash flow forecasting, budget management, KPI reporting, and strategic advisory support.
Entry-level retainers ($2,000 to $3,500/month) are generally suited for businesses under $2M in revenue with relatively straightforward financial needs. At this level, you’re getting regular financial oversight, basic forecasting, and a strategic sounding board: meaningful value, but a lighter engagement cadence.
Mid-range retainers ($3,500 to $6,000/month) fit businesses between $2M and $8M in revenue that need more frequent engagement, more complex financial modeling, or support through a specific initiative like a financing process or growth phase.
Higher-scope retainers ($6,000 to $10,000+/month) serve businesses with greater complexity—multiple entities, active investor or lender relationships, M&A activity, or significant strategic planning needs. At this level, the outsourced CFO is functioning as a true senior financial leader.