The total revenue a single customer generates for a business over the entire duration from the start to the end of their service usage. Abbreviated as LTV (Life Time Value), it is one of the most critical metrics in subscription businesses and serves as a foundation for management decisions.
How to Calculate LTV and Its Practical Applications
The basic formula for LTV is "average customer spend x purchase frequency x average retention period." For subscription models, it can be simply calculated as "monthly fee x average number of months retained." For example, if a service charges 1,000 yen per month and the average retention period is 18 months, the LTV is 18,000 yen.
More sophisticated calculations also factor in additional revenue from upsells and cross-sells, as well as indirect revenue contributions from referrals. Some companies use the DCF (Discounted Cash Flow) method to calculate LTV that reflects the time value of money by discounting future revenue to present value. The key is to select a calculation method suited to your business model and measure consistently over time.
Practical Approaches to Increasing LTV
There are three main approaches to improving LTV. First, extending the retention period (reducing churn rate). Second, increasing customer spend (upselling and cross-selling). Third, increasing purchase frequency. All three are fundamentally rooted in improving customer satisfaction.
In practice, analyzing LTV by customer segment is highly effective. Comparing LTV by acquisition channel, plan type, and signup period reveals the characteristics of high-LTV customers. For instance, if you discover that "customers who signed up via invitation codes have 1.5x higher LTV than those acquired through advertising," this provides a solid basis for investment decisions in referral programs.
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