What Is Customer Acquisition Cost (CAC)?
Customer acquisition cost is the average amount a business spends to acquire one new customer. It totals the sales and marketing investment over a period and divides it by the number of new customers won, showing how efficiently the company turns spend into customers. A low CAC means acquisition is cheap and efficient; a high CAC means each new customer costs a lot to win. It is one of the core metrics of growth economics, especially for businesses that invest heavily in sales and marketing.
How to Calculate Customer Acquisition Cost
CAC = Total Sales and Marketing Spend / Number of New Customers Acquired
Worked example:
- Sales and marketing spend for the quarter: $300,000
- New customers acquired: 150
- CAC: 300,000 / 150 = $2,000
On average, the company spends $2,000 to win each new customer.
CAC in Power BI (DAX)
Replace the measures with the ones in your model. The hardest part is usually capturing the full acquisition cost, not the calculation:
CAC = DIVIDE ( [Sales And Marketing Spend], [New Customers Acquired] )CAC and Customer Lifetime Value
CAC means little on its own; it has to be read against customer lifetime value. The ratio of lifetime value to CAC shows whether acquisition pays off: a common benchmark is that a customer should be worth at least three times what it costs to acquire them. A CAC that looks high can be perfectly healthy if those customers are very valuable, and a low CAC can be a problem if the customers churn quickly.
CAC Payback Period
A related measure is the CAC payback period: how long it takes for a customer to generate enough profit to cover what it cost to acquire them. A shorter payback means the business recovers its acquisition investment faster and can reinvest in growth sooner. Together, the lifetime-value-to-CAC ratio and the payback period describe whether a company’s growth engine is efficient.
Reporting CAC From Your Data
A reliable CAC depends on capturing the full sales and marketing cost and tying it to the customers it produced, which often means combining marketing, sales, and finance data. A governed data foundation brings those together so CAC is complete and consistent. QuickLaunch builds that foundation across systems like Salesforce and the financial ERPs, so acquisition cost ties back to the same governed data.
Frequently Asked Questions
How is customer acquisition cost calculated?
Divide total sales and marketing spend over a period by the number of new customers acquired. A company that spends $300K and wins 150 customers has a CAC of $2,000.
What is a good CAC?
It depends entirely on customer lifetime value. A common benchmark is that a customer should be worth at least three times their acquisition cost. A high CAC can be healthy if customers are very valuable.
What is the CAC payback period?
The time it takes for a customer to generate enough profit to cover their acquisition cost. A shorter payback means the business recovers its investment and can reinvest in growth sooner.
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