The SaaS Operator's Guide to FP&A Modeling
Build the model. Trust the numbers. Tell the story.
A hands-on, formula-by-formula handbook for founders, first finance hires, and fractional CFOs who need a forecast that survives contact with reality — and a board meeting.
- MRR waterfalls and the five movements of recurring revenue
- Revenue recognition, deferred revenue, and cash flow
- Costs, headcount planning, and the SaaS P&L
- NRR, CAC, LTV, Rule of 40, burn multiple
- Scenarios, stress tests, and board reporting
- Ready-to-use spreadsheet with pre-built formulas
- Assumptions → Revenue engine → P&L → Cash flow
- MRR waterfall and cohort recognition schedule
- Headcount plan with fully-loaded costs
- Scenario switch for base, upside, and downside
Revenue engine
MRR waterfall, five movements, cohort-based churn, and the math behind negative net churn.
Recognition & cash
Deferred revenue, the billing-vs-earning gap, working capital, and runway calculations.
Costs & P&L
Hiring plan, COGS vs OpEx, fully-loaded salaries, and the SaaS income statement structure.
SaaS metrics
NRR, GRR, CAC, LTV, payback, Rule of 40, burn multiple, and the SaaS quick ratio.
Scenarios
Base/upside/downside switch, sensitivity analysis, stress tests, and finding breakpoints.
Board reporting
From model to board meeting. Variance bridges, the three questions every board asks, and the one-page summary.
Written for founders running their own finance, first FP&A hires learning subscription economics, and fractional CFOs who want a repeatable modeling approach to deploy across SaaS clients.
Also includes the Monthly Report Pack Lite — free.
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