What is Customer Acquisition Cost (CAC)?
CAC is the total cost of acquiring a new customer, including all marketing and sales expenses divided by the number of new customers acquired.
Definition
Customer Acquisition Cost measures how much it costs to acquire a new customer, calculated by dividing total sales and marketing expenses by the number of new customers acquired in a given period. CAC is a critical metric for evaluating marketing efficiency and unit economics. A sustainable business requires CAC to be significantly lower than customer lifetime value (LTV).
Why Customer Acquisition Cost (CAC) Matters
- Determines profitability of customer acquisition efforts
- Guides marketing budget allocation decisions
- Enables comparison of channel efficiency
- Essential input for financial planning and valuation
- Indicates scalability of the business model
How Customer Acquisition Cost (CAC) Works
CAC = (Total Sales & Marketing Expenses) / (Number of New Customers Acquired). Include all costs: advertising, salaries, tools, agency fees, etc. Calculate by channel and campaign for more granular insights.
Best Practices for Customer Acquisition Cost (CAC)
Calculate CAC by channel to identify most efficient sources
Include all costs, not just ad spend
Track CAC trends over time
Segment by customer type or product
Always evaluate CAC relative to LTV
Frequently Asked Questions
What is a good CAC?
It depends on your LTV. Generally, LTV should be at least 3x CAC for a healthy business. Compare to industry benchmarks and your historical performance.
How can I reduce CAC?
Improve conversion rates (CRO), optimize ad targeting, leverage organic channels, increase referrals, and improve lead quality to close more efficiently.
Related Terms
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