What is Unit Economics?
The profit or loss on a single customer or unit - the test of whether growth actually pays.
Unit Economics: definition
Growth only builds value if each unit is economically sound. Unit economics zoom in to one customer or one product to answer: does this unit make money after the cost to acquire and serve it? The central comparison is lifetime value against acquisition cost. Healthy unit economics mean scaling multiplies profit; broken unit economics mean scaling multiplies losses.
The core unit-economics ratio
LTV : CAC (target ≥ 3:1, with CAC payback under ~12 months)
LTV is the gross-margin profit expected from a customer over their lifetime; CAC is the fully loaded cost to acquire one. The ratio tests whether a customer earns back their acquisition cost with room to spare.
How Fintra handles it
Fintra derives the inputs to unit economics - revenue per customer, gross margin, retention, and acquisition spend - from the same financials that run the books, so LTV, CAC, and payback are grounded rather than estimated in a disconnected spreadsheet. Cohort curves feed retention, and planning tests how a change in margin or churn moves the ratios.
- LTV, CAC, and payback derived from live financial and customer data
- Cohort retention feeds lifetime-value estimates
- Scenarios show how margin, churn, or CAC changes affect the ratio
Worked example
Frequently asked questions
What is a good LTV to CAC ratio?
A ratio of about 3:1 is a common benchmark - enough margin over acquisition cost to fund operations and growth. Much lower suggests you are overpaying to acquire customers; much higher may mean you are underinvesting in growth. Read it alongside CAC payback.
Why do unit economics matter for growth?
Because scaling amplifies whatever the unit economics are. If each customer is profitable, more customers mean more profit; if each loses money, growth accelerates losses. Investors scrutinize unit economics to judge whether a business can scale into profitability.
What is the difference between unit economics and overall profitability?
Overall profitability is the whole-company result, which can be negative during growth even when each unit is sound (because of fixed costs and acquisition spend). Unit economics isolate the per-customer or per-product picture, revealing whether the model works before scale.
What should be included in CAC for unit economics?
The fully loaded cost of acquiring a customer - marketing spend, sales salaries and commissions, tools, and related overhead - divided by customers acquired. Understating CAC by omitting sales costs flatters the ratio and misleads decisions.
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