B2B demand & pipeline

CAC

CAC

(Customer Acquisition Cost)

(Customer Acquisition Cost)

IN PLAIN ENGLISH

Customer acquisition cost (CAC) is the cost assigned to acquiring new customers divided by the number of new customers acquired within a defined measurement scope.

Customer acquisition cost (CAC) is the cost assigned to acquiring new customers divided by the number of new customers acquired within a defined measurement scope.

Updated October 2026

Why CAC matters in B2B

B2B teams need to understand whether acquisition efforts are commercially sustainable. CAC connects costs with customers rather than only clicks or leads. The metric is useful when the included costs, customer cohort, and timing are clear enough for a meaningful comparison.

How to use the concept

Define the costs included, such as relevant sales and marketing work, and align them with the acquisition period or cohort. Separate company-wide and channel-specific calculations. Review the result alongside customer value, delivery economics, and the time needed for opportunities to mature.

An illustrative B2B example

In an illustrative calculation, a firm assigns sixty thousand in acquisition costs to a cohort that produces twenty customers. CAC is three thousand per customer within that definition. This is a worked example, not a benchmark for what another company should achieve.

What to watch for

Mixing this month’s spend with customers produced by older activity can mislead, especially with long sales cycles. A low CAC can also hide poor retention or unfavorable margins. This glossary explains the measurement concept; setting investment targets requires the business’s own cost and customer data.

Frequently asked questions

Is cost per lead the same as CAC?

No. Cost per lead uses leads as the denominator; CAC uses acquired customers.

Does every company calculate CAC identically?

No. Compare cost scope, timing, and customer definitions before comparing values.

Related glossary terms

CLV

Sales Cycle

Revenue Attribution

Further reading

Salesforce: customer acquisition

Put this into practice

A definition is the starting point. Build a strategy that connects discovery to qualified inbound demand.

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