How much does a fractional CFO cost per month?
What a Fractional CFO Actually Costs
Monthly retainer: $2,000–$15,000. That was the most-quoted figure, appearing in 159 of 270 AI answers.
Based on 270 ChatGPT answers to this question, collected August 8, 2026–October 2, 2026. 161 of them stated a figure. Each answer counts once per pricing model. How we measure.
Key findings
- Monthly retainer was the most-quoted way to price fractional CFO and outsourced accounting firms: $2,000–$15,000 per month, appearing in 159 of 270 ChatGPT answers to “How much does a fractional CFO cost per month?”, collected August 8, 2026–October 2, 2026.
- Hourly rate was quoted in 64 of 270 ChatGPT answers, at a median of $150–$450.
- One-off project fee was quoted in 5 of 270 ChatGPT answers, at a median of $450–$2,000.
- 161 of the 270 sampled answers stated a price at all; the remaining 109 answered “How much does a fractional CFO cost per month?” without naming a figure.
- These are counts of what ChatGPT said, not a rate card. The Shortlist Report does not set, collect or verify prices, and no firm paid to influence these figures.
What the answers quoted
| Pricing model | Typical range | Full spread | Answers | |
|---|---|---|---|---|
| Monthly retainer$/month | $2,000–$15,000 | $300–$20,000 | 159 of 270 | |
| Hourly rate$/hour | $150–$450 | $150–$500 | 64 of 270 | |
| One-off project fee$ per project | $450–$2,000 | $450–$15,000 | 5 of 270 | |
| Setup or onboarding fee$ one-off | $399–$449 | $399–$5,000 | 4 of 270 |
How to read this
The models are not alternatives to choose between. A single engagement often combines them — a monthly retainer plus a percentage of ad spend is the most common pairing in this sample — so the shares add up to more than 100% and are meant to.
The typical range is where the middle of the sample sits, not a quote. Half the answers quoted a low bound below $2,000, and half above. Treat it as the number to walk into a conversation already knowing, not the number to expect on a proposal.
What this measurement does not tell you
- These are not quotes and not a rate card. No firm was surveyed and no price was verified. This is what ChatGPT said when asked, which reflects what has been published about pricing online.
- Prices follow scope, not category. The same label covers a one-person account audit and a full retail-and-advertising operation. A range this wide is telling you the category has no standard scope.
- 109 of 270 answers named no figure at all. Pricing is not consistently answered, and a page that reported only the answers containing numbers would overstate how settled this is.
- It is a reading from a date range. Collected August 8, 2026–October 2, 2026 on ChatGPT only.
Cite this report
The Shortlist Report. (2026). What a Fractional CFO Actually Costs. The Shortlist Report. https://www.shortlistreport.com/article/fractional-cfo-cost
Underlying counts: CSV · JSON. Every answer they were counted from: plain text · JSON. All reusable under CC BY 4.0 with attribution.