Customer Lifetime Value.

Customer Lifetime Value (CLV or LTV) represents the total net revenue a business expects to earn from a customer over the entire duration of their relationship. It's a fundamental metric for evaluating marketing efficiency—knowing a customer's LTV determines how much can be profitably spent to acquire them. A customer with an LTV of $5,000 can justify a much higher acquisition cost than one with an LTV of $200.

Calculating LTV

A simplified LTV calculation: Average Purchase Value × Purchase Frequency × Customer Lifespan. For a SaaS product: Average Monthly Revenue Per User × Average Months Before Churn. More sophisticated models include gross margin, discount rates for future revenue, and expansion revenue from upsells. The LTV:CAC ratio is the key health metric—a ratio of 3:1 or higher is generally considered healthy for SaaS businesses.

Improving LTV

LTV improvement strategies focus on retention, upsell, and expansion: reducing churn through better onboarding and customer success; creating expansion revenue through upsell and cross-sell programmes; increasing purchase frequency through loyalty programmes and re-engagement campaigns; and improving average order value through bundling and strategic pricing. Even small improvements in retention have outsized LTV impact because they compound over time.