Fractional CFO for SaaS Companies
Every SaaS founder can quote their ARR and almost none can defend their payback period, which is a problem the first time a real investor asks. A fractional CFO builds the unit economics under the growth story — CAC, gross margin, burn, runway — so your numbers survive contact with someone who reads them for a living.
Growth without unit economics is just spending
It's easy to grow ARR by spending more on sales and marketing. Whether that growth is worth anything depends on CAC, payback period, gross margin, and net revenue retention — the numbers that separate a real business from a fundraising treadmill. Skip them and you can scale straight into a wall while every top-line chart points up and to the right.
A CFO builds and watches those metrics, so you know which growth is compounding value and which is just converting investor cash into logos at a loss.
The numbers behind the runway and the raise
Burn rate, runway, and a hiring plan tied to real capacity are the difference between raising from strength and raising in a panic three weeks before payroll gets tight. And when you do raise, the diligence goes to your model and your cohort data, not your deck.
We keep the burn and runway current, build the board and investor reporting, and model the fundraise and the hiring plan — so the raise is a decision you time, not an emergency you survive.
How Kaizen runs it
You get a senior CFO a few days a month on top of books with clean revenue recognition. We build the SaaS metrics — CAC, LTV, payback, gross margin, NRR — keep burn and runway live, run the fundraise model, and produce board packs an investor can open without a follow-up call.
It's the difference between telling a growth story and being able to back it. Founders who can do the second one raise faster and dilute less, which is the whole point.
What's included
- Unit economics — CAC, LTV, payback period, gross margin, NRR
- Burn-rate and runway modeling kept current
- SaaS metrics that reconcile to the general ledger
- Fundraise and scenario models
- Hiring plan tied to real capacity and cash
- Board and investor reporting packs
- Revenue-recognition oversight for annual and multi-year deals
- Diligence-ready data room support
Pricing
Straight answers
We have a bookkeeper. Why a CFO?
A bookkeeper records history; a CFO builds the forward model — unit economics, burn, runway, the raise. Many clients keep their bookkeeper and add us for the strategy and investor layer.
Can you get us investor-ready?
Yes — that's a core reason founders bring us in. Clean rev rec, defensible unit economics, a live model, and board reporting that stands up when diligence starts.
We're pre-Series A. Are we too early?
Sometimes. If you're pre-revenue and mostly tracking spend, a bookkeeper and a simple model may be enough — we'll say so. Once you're scaling spend against ARR, the unit economics stop being optional.
Do you replace our accounting team?
No — we sit on top, or bring our own bookkeeping if you prefer. The CFO work is judgment, modeling, and investor-facing finance on a clean foundation.
Related
Free 20-minute books assessment
We'll show you the five things we'd fix first in your books — useful whether you hire us, hire someone, or do neither.
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