What is unit economics honesty and why do founders obscure CAC/LTV ratios?
Short Answer
Founders often hide broken unit economics with misleading metrics. Honest presentation: transparent CAC by channel, LTV with conservative churn assumptions, and clear path to >3:1 LTV:CAC.
Full Explanation
A founder claims £5,000 CAC and £15,000 LTV (3:1 ratio, healthy). Investor due diligence uncovers: CAC includes founder time (not scalable), LTV assumes 5% churn (actual is 8%), and 30% of customers are friends at heavily discounted rates. Real unit economics: £12,000 CAC, £8,000 LTV (0.67:1)—unprofitable. Founder lost credibility. Honest unit economics: 1) Calculate CAC cleanly—include fully-loaded customer acquisition spend (salaries, tools, failure rate). 2) Calculate LTV conservatively—use actual churn, not aspirational retention. 3) Break down by customer segment—some segments might have great unit economics, others terrible. 4) Identify path to profitability—what has to change for LTV:CAC to reach 3:1? Example: "Current LTV:CAC is 1.8:1 (unprofitable). Path to 3:1: (1) reduce churn from 8% to 5% through onboarding improvements (1 engineer, 6 months), (2) expand average contract value 20% through upsells (product development), (3) mature sales efficiency as team scales. Timeline to unit-positive: 18 months." This is credible because it's specific, has a plan, and acknowledges current reality. Hiding unit economics or presenting aspirational numbers signals either you don't understand your business or you're hiding deterioration.
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Further Reading
The Burn Multiple: Why Capital Efficiency Is the New Growth
The burn multiple has replaced growth rate as the metric investors scrutinise most. This guide explains the formula, stage-specific benchmarks, and why every dollar of burn should be creating an intangible asset that compounds in value.
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