Revenue LTV flatters: it ignores product cost, fulfilment and fees. Contribution LTV, the money you actually keep from a customer's orders, is the version that can be compared with CAC.

Always state the horizon. A 12-month LTV and a 36-month LTV are different numbers, and the longer horizon depends on retention assumptions that are hard to prove for young brands.

Formula

Contribution LTV = Orders per customer over the horizon × AOV × Contribution margin

Example

A customer who places 2.2 orders over 24 months at a ₹1,500 AOV and a 40% contribution margin has a 24-month LTV of ₹1,320.

Work it out: LTV:CAC and payback

Model contribution lifetime value from repeat behaviour, then see your LTV:CAC ratio and payback month.

Related terms

Part of the growth marketing glossary by Shiva Sharma.