CAC payback period

CAC payback is the time it takes for a new customer's margin to cover what it cost to acquire them. Shorter payback means cash comes back sooner.

Stock photos and example labels, not customers.

Definition

CAC payback is the time it takes for a new customer's margin to cover what it cost to acquire them. Shorter payback means cash comes back sooner.

FormulaCAC payback = CAC / monthly contribution margin per customer

Example with made-up numbers: Acquisition costs 30 per customer and each customer brings 10 in margin per month. Payback = 30 / 10 = 3 months.

It is a cash question, not a profit question. A business can have a healthy lifetime value and still run out of cash if payback takes too long.

Use margin rather than revenue, and state the cohort and the period you measured.

When platforms disagree about who deserves credit, blended CAC answers a plainer question: what did a new customer cost us in total?

Built for shop owners, creators and agencies. Stock photos, not customers.

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