Marketing Economics glossary

What Is Customer Acquisition Payback Period?

Definition

Customer acquisition payback period is the time required for a new customer's cumulative contribution margin to recover the cost of acquiring that customer.

How Customer Acquisition Payback Period Works

Compare CAC with the contribution generated by the customer's purchases over time. Subscription businesses often express the result in months; repeat-purchase businesses may use orders or cohorts.

A Simple Example

If CAC is $300 and a customer contributes $50 per month, the simplified payback period is six months.

Why Customer Acquisition Payback Period Matters

Payback shows how quickly growth spending returns cash that can be reinvested.

Common Misreading

A short payback calculation can be misleading if it uses revenue instead of contribution, ignores churn or assumes future purchases that have not been observed.