LTV: customer lifetime value
LTV estimates how much revenue or margin a customer contributes over the full relationship—and sets the ceiling for CAC and growth ambition.
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What it is
Lifetime value can be modeled simply (average order value × purchase frequency × lifespan) or cohort-based with repeats and expansions. Finance and marketing must agree whether the numerator is gross revenue, net revenue, or margin.
Why it matters for business
Without LTV you optimize channels for cheap traffic while the business may never recover acquisition spend. Investors and CFOs anchor unit economics on LTV, not reach KPIs alone.
How to apply it
Build cohorts from first purchase dates. Separate revenue from margin; handle refunds. Tie to churn and retention plays in email and CRM. Align the definition of “customer” with finance.
Table 1. Definition and business context
| Criterion | In short |
|---|---|
| Definition | Lifetime value can be modeled simply (average order value × purchase frequency × lifespan) or cohort-based with repeats and expansions. Finance and marketing must agree whether the numerator is gross revenue, net revenue, or margin. |
| Why businesses care | Without LTV you optimize channels for cheap traffic while the business may never recover acquisition spend. Investors and CFOs anchor unit economics on LTV, not reach KPIs alone. |
| Effect when done right | An honest LTV/CAC pair makes scaling decisions defensible: you see when growth buys are rational versus leaky buckets. |
Table 2. Practice, ecosystem, and related terms
| Area | What to consider |
|---|---|
| How to apply | Build cohorts from first purchase dates. Separate revenue from margin; handle refunds. |
| Works with | Connects to CAC, churn, email, loyalty, and product-led expansion. |
| In the glossary | CAC: customer acquisition cost, Churn: customer attrition, Email marketing, CRM marketing |
Benefits and impact
An honest LTV/CAC pair makes scaling decisions defensible: you see when growth buys are rational versus leaky buckets.
How it fits the stack
Connects to CAC, churn, email, loyalty, and product-led expansion.