Four working papers make the case, and let you check it. Why the CLV:CAC ratio is the most important metric in B2B marketing. Why yours is almost certainly wrong. And what to do the day the diagnostic proves it.
One number answers the CFO's question directly, and it is almost always flattered: understated on CAC, overstated on CLV. This paper shows you exactly where, and what a calculation you can defend actually requires.
Read the paper →Because the numbers keeping you comfortable are lagging indicators. By the time EBITDA softens and churn rises, the problem has been compounding quietly for two to three years. Comfort is not the same as safety.
Read the paper →Six symptoms give away deteriorating unit economics, and each one gets waved off as an execution problem you can hustle your way out of. It usually isn't. This paper names the marketing lever that actually moves each one.
Read the paper →The standard improvement programme sharpens the marketing without asking whether the marketing is creating or destroying value at the customer level. Answer that first, or you optimise your way deeper into a loss.
Read the paper →Refine the ICP at 2.8:1 and it is a spreadsheet exercise. Leave it until 1.4:1 and the same fix means exiting segments, repricing, and rebuilding the pipeline from a worse starting point. Same problem. A far larger bill.
Intervention cost rises as the ratio deteriorates
The same conventions, applied the same way, every time. So your result stands up next to last quarter's and next to any business you care to compare against.
| Goes in | All sales and marketing headcount, programme spend, agency fees, and technology attributable to acquisition. |
| Stays out | Retention, renewal, and customer success costs. |
| Period | Trailing 12 months, normalised for seasonality. |
| Basis | Gross margin per period, not revenue. |
| Discount | 10% per annum applied to future cash flows. |
| Less | Cost-to-serve, separated out; capped at 5 years. |
The Commercial Logic tool pulls acquisition spend out from retention and isolates the one CAC figure that belongs in the ratio. Set against net lifetime value, that figure drives both headline outputs: the CLV:CAC ratio and the Capital Burn Velocity.
The blended number is a diagnostic comparator only. New Customer CAC is the figure that belongs in the ratio.
Stop reading about the ratio. See yours. Ten minutes, your CLV:CAC position, and four prioritised actions. The argument above, pointed at your business.