What is LTV?

For founders, understanding LTV is critical for validating a business model and ensuring profitability. It directly informs how much you can realistically spend to acquire a new customer (CAC). If your LTV is significantly higher than your CAC, your business has a sustainable growth engine. Conversely, a low LTV combined with a high CAC is a red flag, indicating that your customer acquisition efforts will quickly lead to financial distress. Businesses with strong LTV often command higher valuations because they demonstrate durable customer relationships and predictable future revenue streams.

When you're evaluating a business to buy, LTV provides deep insight into its customer base and financial health. Calculate LTV by multiplying the average purchase value by the average purchase frequency, then by the average customer lifespan. For recurring revenue businesses, it's often more straightforward: average monthly revenue per customer multiplied by the average customer lifespan in months. A common mistake is to only look at historical revenue without considering the potential for future engagement or the impact of churn. Buyers should scrutinize the LTV calculation provided by sellers and understand underlying assumptions about customer retention and spending habits.

A sustained, high LTV suggests a strong product-market fit (PMF) and effective customer retention strategies, which are prime indicators of a valuable asset. Buyers should be wary of businesses with an LTV heavily reliant on a few large customers, as this concentration risk can artificially inflate the LTV metric and pose significant risk post-acquisition. Always compare LTV to CAC during due diligence; a healthy ratio, typically 3:1 or higher, suggests a well-managed and scalable business.