How much does a fractional CFO cost for a startup?

Traditional fractional CFOs typically bill $200–$400/hr, with monthly retainers running $2K–$15K depending on hours. StartupCFO bundles a fractional CFO, bookkeeping, and tax for $129–$799/mo — a flat-rate alternative that scales with stage rather than hours.

How many hours of CFO time does a startup need?

Pre-seed startups typically need 6–12 hours/month (light touch on cash management and basic reporting). Seed-stage startups need 12–24 hours/month. Series A and B companies often need 24–48 hours/month, more during a fundraise. Compliance complexity (multi-state, international, R&D credits) adds 3–8 hours/month.

When should I hire a full-time CFO instead of fractional?

Typical triggers: $10M+ ARR, raising a Series B+, 50+ headcount, planning M&A or IPO within 24 months, or international expansion that needs a permanent on-the-ground finance lead. Fractional CFOs make sense for everything before that — and many companies stay fractional through Series B.

What's included in StartupCFO's monthly price?

All plans bundle bookkeeping, monthly close, tax compliance, and ClariFi (our AI-powered financial intelligence platform). Higher tiers add fractional CFO hours, board pack delivery, financial modeling, and dedicated fundraise support. There are no hourly add-on fees.

Can I get a fractional CFO just for fundraising?

Yes — many founders ramp from Basic to Growth tier 2–3 months ahead of a raise. You get a CFO who builds the operating model, board materials, and Q&A prep, then ramps back down post-close. Some hourly fractional CFOs do this too, but typically at 3–4× the cost.

How is fractional different from outsourced accounting?

Outsourced accounting handles bookkeeping and tax — backward-looking compliance. A fractional CFO is forward-looking — financial modeling, runway planning, scenario analysis, board strategy, and fundraising support. StartupCFO is rare in that we bundle both under one team.

Free Tool

Fractional CFO Cost Estimator

Name: StartupCFO
Address: 2 Embarcadero Center, San Francisco, CA, 94111, US
Telephone: (415) 406-6041
Price range: $129–$799/mo

See how much CFO time your startup needs — and how the StartupCFO bundle compares to hourly fractional CFOs and full-time hires.

Tell us about your startup

Stage

ARR ($K)

Headcount

Compliance complexity

Planning to raise in the next 6 months

Recommended plan

StartupCFO Foundation$349/mo

Estimated 21 hours/month of CFO time (Standard intensity)

StartupCFO bundle

$349/mo

Traditional fractional

$6,300/mo

at $300/hr

Full-time CFO

$18,750/mo

$225K + benefits + equity

You'd save $220,812/yr vs hiring a full-time CFO, and $71,412/yr vs a traditional fractional CFO billing by the hour.

Estimate based on typical CFO time allocation by stage. Actual hours depend on board cadence, fundraise pace, and reporting needs.

Want a CFO matched to your stage?

Book a free 30-minute consultation. We'll walk through your numbers and recommend the right plan.

Frequently Asked Questions

How much does a fractional CFO cost for a startup?: Traditional fractional CFOs bill $200–$400/hr, with monthly retainers running $2K–$15K depending on hours. StartupCFO bundles a fractional CFO, bookkeeping, and tax for $129–$799/mo — a flat-rate alternative.
How many hours of CFO time does a startup need?: Pre-seed: 6–12 hr/mo. Seed: 12–24 hr/mo. Series A/B: 24–48 hr/mo, more during fundraise. Compliance complexity adds 3–8 hr/mo.
When should I hire a full-time CFO instead?: Typical triggers: $10M+ ARR, raising Series B+, 50+ headcount, M&A or IPO within 24 months, or international expansion needing an on-the-ground finance lead.
What's included in StartupCFO's monthly price?: Bookkeeping, monthly close, tax compliance, and the ClariFi platform are bundled. Higher tiers add CFO hours, board packs, financial modeling, and fundraise support. No hourly add-ons.

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