Definition
Blended CAC includes salaries, tools, agency fees and every channel's spend against total new customers. It cannot be gamed by individual platforms and represents the number the business actually lives on.
Why it matters
Channel CACs flatter themselves; blended truth decides whether growth is profitable - track it weekly like cash balance.
Formula
All sales + marketing costs / New customers acquired
Benchmarks
Compare against LTV: healthy at 1/3 of LTV or better
All glossary terms