KPIs Every CFO Must Track

The CFO's lens on KPIs is fundamentally about capital efficiency: is the company generating an appropriate return on invested capital, and is the cash position sustainable through the next operating cycle? For SaaS businesses, the CFO focuses on ARR and NRR as the foundation of predictable revenue, gross margin as the profitability floor, and burn rate and runway as the survival metrics that determine fundraising timing. Unit economics (LTV:CAC ratio and CAC payback period) are the CFO's tool for stress-testing whether growth investment will ultimately generate positive returns. A company growing rapidly with a 18-month CAC payback and 4:1 LTV:CAC can justify aggressive growth spending; one with a 36-month payback and deteriorating LTV has a structural economics problem that revenue growth cannot solve. The CFO also owns the operating plan's credibility with investors. Free cash flow margin, operating margin, and EBITDA are the metrics used to demonstrate path to profitability and to position the company on the Rule of 40 spectrum. At the detailed level, churn rate's impact on future ARR cohort trajectories and gross margin's effect on the entire unit economics stack are the mechanisms through which operational decisions translate into financial outcomes.