Customer Lifetime Value (CLV)

CLV is the counterpart to CAC and together they form the foundation of SaaS unit economics. A high CLV relative to CAC means your business model is fundamentally sound and each new customer contributes significant long-term profit. CLV can be calculated in different ways depending on the complexity of your revenue model, but the most common SaaS approach multiplies average revenue per user by gross margin percentage and average customer lifespan in months. Increasing CLV is often more impactful than reducing CAC because it compounds over time. Strategies include reducing churn through better onboarding and customer success, driving expansion revenue through upsells and cross-sells, and improving product stickiness so customers become deeply embedded in your platform. SaaS companies with net revenue retention above 120% effectively grow their CLV without acquiring a single new customer.

A project management SaaS charges an average of $200 per month per account, operates at 80% gross margin, and retains customers for an average of 30 months. Their CLV is $200 x 0.80 x 30 = $4,800. If their CAC is $1,200, the CLV:CAC ratio is 4:1, which indicates a healthy and scalable business model.