Churn Rate

Churn rate measures how many customers or how much recurring revenue you lose in a given period. Customer churn counts lost accounts; revenue churn weights them by value. A 5% monthly churn rate means you must replace one in twenty customers every month just to stay flat. For subscription and SaaS businesses, churn is often the single biggest constraint on growth.

Lowering churn is usually more profitable than chasing new acquisition, since retained customers cost nothing to re-acquire and tend to spend more over time. Reducing churn means understanding why people leave — poor onboarding, weak value realization, or better alternatives — and fixing it with lifecycle touches and proactive support. Even a small drop in churn dramatically increases lifetime value and compounds growth.