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Definition · SaaS metrics

Customer Acquisition Cost

Customer acquisition cost is the total sales and marketing cost to acquire one new customer, what is included in the numerator and denominator, and common variants. For customer acquisition cost, the useful boundary is whether the movement comes from customers, contracts, billing, cash timing, or recognition rules.

Also known as CAC

Written by Pluvo TeamReviewed by Pluvo Team
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Why it matters

Understanding customer acquisition cost matters because revenue and customer metrics can change materially when teams mix contract, billing, cash, recognition, churn, or expansion logic. The definition protects the story from drifting. Pluvo computes CAC from connected sales and marketing spend, tracing the figure to the costs and cohorts behind it.

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In practice

  • Revenue example

    Teams use customer acquisition cost when they need to separate customer, contract, billing, recognition, and cash effects. That prevents a revenue movement from being misread as growth, churn, expansion, or timing noise.

  • Pluvo example

    Pluvo computes CAC from connected sales and marketing spend, tracing the figure to the costs and cohorts behind it.

In practice, teams should define customer acquisition cost with a clear source, owner, time period, and decision before they use it in reporting, planning, or operating reviews.

Understanding customer acquisition cost matters because revenue and customer metrics can change materially when teams mix contract, billing, cash, recognition, churn, or expansion logic. The definition protects the story from drifting. Pluvo computes CAC from connected sales and marketing spend, tracing the figure to the costs and cohorts behind it.

A strong workflow for customer acquisition cost separates the definition from the action: first agree what the term means, then decide how it is measured, when it changes, and who is accountable for the next step.

Pluvo computes CAC from connected sales and marketing spend, tracing the figure to the costs and cohorts behind it.

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FAQ

How do you calculate customer acquisition cost?

To calculate customer acquisition cost, define the source data, time period, comparison basis, and owner before applying the formula. The useful answer is not only the math; it is whether the inputs and timing match the decision the metric supports.

What costs are included in CAC?

Whether customer acquisition cost includes a specific item depends on the agreed definition, source system, time period, and reporting purpose. For this glossary, use the definition above as the rule and document any exclusions before the metric is used in reporting.

What is a good CAC for SaaS?

A good value for customer acquisition cost depends on company stage, business model, margin profile, cash position, and reporting purpose. The useful comparison is the one tied to the decision, not a generic benchmark copied across contexts.

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Sources

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