Customer Acquisition Cost Efficiency Ratio measures how effectively a business spends money to acquire new customers. It compares the cost of acquiring customers to the revenue those customers generate, helping companies understand if their marketing and sales efforts are financially efficient.
Synonyms: CAC Efficiency Ratio, Customer Acquisition Efficiency Ratio, Customer Acquisition Cost Effectiveness, Customer Acquisition ROI Ratio

Tracking this ratio helps businesses avoid overspending on customer acquisition. A low ratio means the company is gaining more revenue compared to what it spends, indicating efficient use of marketing budgets.
Divide the total revenue generated from new customers by the total cost spent to acquire those customers. For example, if a company spends $10,000 on marketing and gains $50,000 in revenue from new customers, the ratio is 5, meaning $5 earned for every $1 spent.
Businesses can use this ratio to identify which campaigns or channels deliver the best return on investment. By focusing on high-efficiency channels, companies can optimize their budgets and increase profitability.