Four working papers set out the full case for why the CLV:CAC ratio is the most important metric in B2B marketing, why it's almost always wrong, and what to do when the diagnostic finds a problem.
The CLV:CAC ratio is the only number that answers the CFO's question directly. This paper explains why it's almost always understated on CAC and overstated on CLV, and what a correct calculation actually requires.
Read the paper →The metrics that generate comfort are lagging indicators. By the time EBITDA softens and churn rises, the underlying problem has typically been compounding for two to three years.
Read the paper →Six symptoms signal deteriorating unit economics in most B2B businesses. Each is routinely misdiagnosed as an execution problem. This paper identifies the marketing levers that address each one.
Read the paper →The standard marketing improvement programme answers the wrong question. The prior question, is marketing creating or destroying value at the customer level, must be answered first.
Read the paper →An ICP refinement when the ratio is at 2.8:1 is an analytical exercise. The same intervention at 1.4:1 may require exiting customer segments, repricing, and rebuilding the pipeline from a fundamentally different starting point.
Intervention cost rises as the ratio deteriorates
The same conventions applied consistently across every engagement, so results are comparable across businesses and reporting periods.
| 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 separates acquisition spend from retention, then 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.
Ten minutes to your CLV:CAC position and four prioritised actions. The argument above, applied to your business.