SaaS growth playbook
📖 3 min readUpdated 2026-04-19
SaaS growth has specific mechanics: recurring revenue, compounding retention, expansion. Classic plays work.
Sequence
- PMF first (qualitative + 40% rule)
- Activation tuning
- Retention bar-raising
- Scale acquisition
- Expansion + pricing
Key metrics
- MRR
- Net Revenue Retention
- CAC payback
- Free-to-paid conversion
- Churn
Levers
- Onboarding → activation
- Feature adoption → retention
- Pricing + packaging → expansion
What to do with this
- Match growth tactics to stage, running $10M-stage paid acquisition at $0-1M burns cash and teaches nothing
- Prioritize retention before scaling acquisition, pouring paid leads into a leaky SaaS bucket is the most common early-stage failure
- Invest in expansion motion early, NRR is the metric that separates 3-year SaaS survivors from casualties
- Layer PLG and sales-led based on ACV, under $10K/yr defaults PLG, above $50K defaults sales-led, in between blend
- Re-evaluate growth model every 6 months, what worked at $2M ARR rarely works at $20M and vice versa