LTV:CAC measures the efficiency of your acquisition motion. >3:1 is widely considered healthy SaaS. >5:1 is excellent. <1:1 means each customer is unprofitable at acquisition and your unit economics don't work. Ratio depends heavily on retention - higher NRR/lower churn extends LTV indefinitely. CS leaders should know their company's LTV:CAC because it's the lever they most directly control.
LTV / CAC$80K LTV / $20K CAC = 4:1.
See how public B2B SaaS companies disclose this metric, with full historical time series.