What's the latest median CAC payback for Series B SaaS?
TL;DR: Median Series B SaaS CAC payback in 2026 is ~14 months (GM-adjusted, new-logo). Top quartile <12, bottom quartile 24. Drift up from ~12 months in 2024 is driven by AE cost +38%, paid CPLs +17-24%, and gross margin -200bps from AI inf…
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