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Fundraising & equity

Fractional CFO

Also known as Outsourced CFO, part-time CFO

A fractional CFO is a senior finance leader who works part-time across several companies instead of one full-time role.

Updated July 2026·Sources: Kruze Consulting

Key takeaways

  1. Typically $250–$500/hr or $3k–$10k/mo retainer
  2. Before a startup can justify a full-time CFO, a fractional CFO gives founders investor-grade financials, a defensible model, and fundraising leverage without the equity and salary of a full-time executive..

What is fractional cfo?

A fractional CFO is a senior finance leader who works part-time across several companies instead of one full-time role. For seed and Series A startups, they own the financial model, board reporting, fundraising strategy, and cash management at a fraction of a full-time CFO's cost.

Worked example

A seed startup pays $5,000/month for ~1 day per week of CFO time to build its model, run its raise, and prep board decks, versus $250k+/year fully loaded for a full-time hire.

Benchmarks by stage

Standard hourly rates run $250–$350/hr (top firms to $500); monthly retainers commonly $8,000–$16,000, with early-stage startups often at the $3k–$5k end.

Source: Kruze Consulting (2025)

Why it matters for fast-growing companies

Before a startup can justify a full-time CFO, a fractional CFO gives founders investor-grade financials, a defensible model, and fundraising leverage without the equity and salary of a full-time executive.

Frequently asked questions

How much does a fractional CFO cost?+
Most fractional CFOs charge $250–$500 per hour or a monthly retainer of roughly $3,000–$10,000, depending on scope and stage. Early-stage startups typically land at the lower end, since they need 10–20 hours of CFO time per month, per Kruze Consulting's 2025 benchmarks.
When should a startup hire a fractional CFO instead of a full-time one?+
Hire fractional when you need CFO-level judgment for fundraising, modeling, or board reporting but not 40 hours a week of it. Most seed and Series A startups don't justify a full-time CFO's salary and equity until they're managing meaningful revenue, headcount, and complexity.
What does a fractional CFO actually do?+
A fractional CFO owns the financial model and forecast, board and investor reporting, cash and runway management, fundraising strategy and diligence support, and hiring or overseeing bookkeeping and accounting. They translate messy startup finances into the numbers investors and boards expect to see.

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