Customer Lifetime ValueCLV or LTV
Customer lifetime value (CLV, often called LTV) is an estimate of the total gross profit a company earns from one customer over the whole relationship, from first payment to cancellation. Subscription businesses usually calculate it from average revenue per account, gross margin and churn rate. It sets the ceiling on what you can spend to win a customer.
How to calculate customer lifetime value
The standard subscription formula uses three numbers most finance teams already track: average monthly revenue per account, gross margin and monthly churn rate.
CLV = (Average revenue per account per month × Gross margin) ÷ Monthly churn rateFor example, if an average account pays $4,000 a month, gross margin is 75% and 2% of customers cancel each month, CLV is ($4,000 × 0.75) ÷ 0.02 = $150,000.Dividing by the churn rate is a shortcut for expected lifetime: one divided by monthly churn gives the average number of months a customer stays.
A contract-based CLV formula for B2B
Many B2B companies sell annual contracts to a limited number of accounts, so a monthly churn rate is noisy or meaningless. A contract-based version is easier to defend in front of a board:
CLV = Annual contract value × Gross margin × Expected years as a customerFor example, a customer on a $60,000 annual contract with a 70% gross margin, expected to stay 4 years, has a CLV of $60,000 × 0.7 × 4 = $168,000.Base the expected years on renewals you have actually seen, not on hope. If customers usually add seats or products over time, add expected expansion as a separate line rather than raising the contract value, so you can check later which part of the estimate held up.
Why CLV is hard to trust in B2B
- Few customers: with a small number of large contracts, one cancellation swings churn, and CLV with it.
- Short history: if customers have not had time to leave, churn looks close to zero and CLV looks endless.
- Expansion: customers who add seats or products are worth more than their first contract, and the simple formula misses it.
- Mixed segments: one average across small and enterprise customers describes nobody.
- Survivorship: a CLV built only from customers who stayed ignores the ones who left early.
A sounder method for B2B is cohort based. Group customers by the quarter they signed and track the gross profit each group actually produced. Use a formula only where you lack history, and cap the expected lifetime at a period you can defend, such as one contract term plus one renewal. Then compare the estimate with real renewals every year and update it.
How to use CLV in sales and marketing
CLV matters because it tells you how much a customer can cost to acquire. Compare it with customer acquisition cost (CAC), split by segment and by channel, and use it to decide where effort goes:
- Targeting: segments with higher CLV deserve more personal, more expensive outreach.
- Channel choice: a high-touch motion with SDRs, calls and tailored research pays back only when CLV is large.
- Retention: every point of churn you remove raises CLV for the whole segment.
- Pricing: when CLV is low everywhere, the problem may be price or packaging, not acquisition.
This is why our GTM consulting work is for B2B tech companies selling $50K+ contracts: below that size, a high-touch outbound motion rarely pays for itself. Once you know which segment carries the highest CLV, build the list around it, as described in how to build a B2B lead list.


